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Publication numberUS3792800 A
Publication typeGrant
Publication dateFeb 19, 1974
Filing dateJul 6, 1972
Priority dateJul 6, 1972
Publication numberUS 3792800 A, US 3792800A, US-A-3792800, US3792800 A, US3792800A
InventorsCapra N, Toth V
Original AssigneeCapra N, Toth V
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Liquid dispenser
US 3792800 A
Abstract
A liquid dispenser comprising a container having relative rotatable parts, and within the container a cylinder and a piston movable relative to each other and forming a chamber. The cylinder or piston being moved by the relatively rotatable part of the container, and when so moved, filling the chamber with a fluid contained in the container. The fluid is placed under pressure in the chamber and is dispensed from that chamber upon actuation of a valve. There is also a means on the container for locking the valve in inoperative position.
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Description  (OCR text may contain errors)

llnited States Patent [1 Capra et al.

[ 1 Feb. 19, 1974 LIQUID DISPENSER [76] Inventors: Nicholas G. Capra, 467 Dellavan Ave., Newark, NJ. 07109; Vincent Toth, 1.20 Midland Ave., Stanhope, NJ. 07874 [22] Filed: July 6, 1972 [21] Appl. N0.: 269,452

[52] US. Cl 222/43, 222/153, 222/321, 222/340, 239/329 [51] Int. Cl B67d 5/32 [58] Field of Search 222/43, 44, 309, 321, 340, 222/341, 380, 385, 386, 402.11, 424, 153; 237/333, 337, 331, 329, 373; 137/5135 [56] References Cited UNITED STATES PATENTS 3,471,065 10/1969 Malone 222/321 1,997,365 4/1935 Howard 137/5135 2,600,187 6/1952 Bart 137/5135 2,686,652 8/1954 Carlson et al.,.. 222/153 X 3,101,751 8/1963 Ballin 222/43 X 3,514,017 5/1970 Malone 239/333 X 3,506,164 4/1970 Weichselbaum et al 222/340 FOREIGN PATENTS OR APPLICATIONS 768,271 2/1934 France 222/386 Primary E xaminerRobert B. Reeves Assistant Examiner-Joseph J. Rolla Attorney, Agent, or FirmLuke A Mattare et al.

[5 7 I ABSTRACT A liquid dispenser comprising a container having relative rotatable parts, and within the container a cylinder and a piston movable relative to each other and forming a chamber. The cylinder or piston being moved by the relatively rotatable part of the container, and when so moved, filling the chamber with a fluid contained in the container. The fluid is placed under pressure in the chamber and is dispensed from that chamber upon actuation of a valve. There is also a means on the container for locking the valve in inoperative position.

33 Claims, 19 Drawing Figures LIQUID DISPENSER BACKGROUND OF THE INVENTION Containers of material, such as fluids, i.e., insecticides, perfumes, herbicides, hair sprays, are placed in the container together with a gas propellant and are expelled from the containers upon the operation of a valve under the pressure of the propellant. Most of the substances contained in the container, together with the gas propellant, are toxic and injurious to the health of a human being. Further, the container cannot stand a high degree of heat and will explode due to the heating and expansion of the gas propellant. This is likewise injurious to anyone near the container when it explodes. The so-called spray containers are also injurious to small children because of their ease of operation. A small child operating the valve would not know enough to direct the spray nozzle away from his face or body, thereby getting the full force of the material and the propellant gas thus causing serious injury.

SUMMARY OF THE INVENTION This invention relates to a container for fluid and for the discharge of that fluid under pressure.

The object of the invention is to have a container for the storage of a fluid which may be refilled and mechanism within the container operated by rotating one part of the container relative to another part which rotation will enlarge a chamber which by virtue of that enlargement will draw by suction a quantity of the fluid in the container into the chamber. When the chamber is full, the contents thereof are under spring pressure; and when a valve on the outside of the container is actuated, the fluid in that chamber will be dispensed therefrom by the pressure thereon either in the form of a spray or a pouring of the liquid from a spout.

Another object is to have the chamber of such size that a relatively small amount of the liquid will be drawn into the chamber and which amount can be dispensed from the container in a predetermined time according to the size of the chamber; and when the chamber is empty, it must be reactivated to again fill the chamber. Should any fluid remain in the chamber, it will gradually leak by a valve means back into the container through the pressure means on the fluid.

Still another object of the invention is that the amount of movement of the cooperating means may be so adjusted that a predetermined amount of fluid may be drawn into a larger chamber and dispensed therefrom.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the container used in this invention.

FIG. 2 is a cross-sectional view of FIG. 1, taken on line 22 in FIG. 1.

FIG. 3 is a cross-sectional view taken on line 33 of FIG. 2.

FIG. 4 is a cross-sectional view taken on line 44 of FIG. 2.

FIG. 5 is a view similar to FIG. 2, but showing the action of dispensing.

FIG. 6 is an exploded view of the cooperating parts for operation of the dispensing means shown in FIG. 2.

FIG. 7 is a lay out of the cam, which is a part of the cooperating means.

FIG. 8 is a cross-sectional view of a modification of the cooperating means and dispensing means.

FIG. 9 is an exploded view of the mechanism shown in FIG. 8.

FIG. 10 is a cross-sectional view taken on like 10-10 of FIG. 8.

' FIG. 11 is still a further modification, showing a different type of cooperating means.

F IO. 12 is a cross-sectional view taken on line l2l2 of FIG. 11.

FIG. 13 is a view partially in cross-section showing one type of check valve used in the dispensing means.

FIG. 14 is a view similar to FIG. 14, showing a different type of check valve.

FIG. 15 is a perspective view of a dispenser for dispensing a predetermined amount.

FIG. 16 is a cross-sectional view taken on line 16-16 of FIG. 15.

FIG. 17 is a cross-sectional view taken on line 17l7 of FIG. 16.

FIG. 18 is an exploded view of the cap and cooperating parts for the setting of dispensing a predetermined amount, and

FIG. 19 is a view of the cap and setting lever.

DESCRIPTION OF THE EMBODIMENTS A container for fluids and for dispensing the same, generally indicated at 10 is provided with a body part 11, a top part 12, and a bottom part 13. The top part 12 has on the upper wall 23 thereof, a dispensing nozzle 14, which when depressed, will open a valve 15 thus allowing the fluid within the container to be dispensed in a manner hereinafter described. Also in the top wall, there is provided a depressed portion 16. The depressed portion has side walls 17 and 18 which are slightly undercut to provide a groove. Mounted within the groove is a slide 19 which is movable in the groove by reciprocating the same through engagement by a finger with the rib 20. One end of the slide 19 has a bifurcation 21. The slide when moved from right to left will place the bifurcation 21 under the valve operating member 14, thus preventing depression of that member and operation of the valve 15. By moving the slide 19 in the reverse direction, the valve operating member 14 can be depressed, thus opening the valve 15.

The body part 1 l of the container is of hollow tubular structure and may be made of plastic, metal or glass. The top part 12, also made of plastic, metal or glass, is mounted upon one end of the body part 11 by a slip joint 25 as shown in FIG. 2 and is sealed in that relationship. The joint between the top part and body part may be of any type, commensurate with the material being used, whereby a rigid sealed joint may be made.

The bottom part 13 is formed of a generally cupshaped configuration having a base 26 and a side wall 27. A groove 28 is formed in the interior of a side wall intermediate the height thereof. The body part 11 has formed on the outer surfaces thereof near the other end a rib 29 which engages the groove 28. The bottom cap or part has an internal diameter in the side wall 27 of substantially the same diameter as the outer wall of the body part 11, and being of this diameter with the rib 29 seating in the groove 28 and the end of the body part 1 1 seating tightly against the base 26, seals the bottom part to the body part with sufficient tightness to prevent the liquid contents of the container from leaking at the juncture but still allowing rotation of the bottom part relative to the body part. The base of the bottom part is provided with a heavy portion extending from the center radially outward toward the side wall 27. This heavy portion 30 provides between the outer circumference thereof and the side wall a groove 31 into which the other end of the body part 1 l is seated.

The base of the bottom part also has an opening 32 therein which comprises a sealed opening by which liquid may be poured into the container and. through which the container may berefilled after the liquid within the container has been used and dispensed. The opening is closed by a screw 33, and head of which seats in a countersink 34 so that the screw is flush with the outer surface of the bottom part. While there is shown the rib and groove connection between the bottom part and the body part, any other type of connection may be used, such as both parts having grooves therein with an O-ring filling the grooves. Any type of connection which will allow the sealing of that connection and the rotation of one part relative to the other part may be used.

Concentrically mounted upon and integral with the base 26 is an upstanding sleeve 36 having at its upper end a cam 37. The cam has diametrically opposed high points 38 and 39 and low points 40 and 41 also diametricallyopposed and intermediate the high points with sloping cam surfaces 42 and 43 extending between the high point and the low points on one side of the high points and having vertical surfaces 44 and 45 on the other side of the high points. As was previously stated, the sleeve 36 is integral with the bottom part 26 and having the aforesaid cam surfaces on the upper part thereof is rotatable with the bottom part. Mounted upon the base 26 and extending upwardly therefrom in the container and concentrically within the sleeve 36 is a piston rod 48. The piston rod has at its lower end a head 49 which is embedded in the thickened part or heavy part 30 of the bottom part. This mounting gives rigidity to the piston rod and rotates the piston rod with the bottom part. A piston 50 is rigidly mounted on the upper end of the piston rod 48. The piston 50 has a seal ring 51 mounted on the outer surface thereof. The top part 12 carries the guide 55 extending from the lower part thereof into the body part. The guide 55 has a groove or channel 56, the "channel facing inwardly toward the center of the container. A head 57 having 'a rib 58 extending along one side wall thereof is guided by the rib 58 engaging in the channel 56 and having vertical movement therein. The head 57 is substantially cup-shaped and is inverted with the base 59 extending toward the cap part and having a downwardly extending side wall 60. Sealed within the cup-shaped head is a downwardly extending sleeve 61. The upper end 62 of the sleeve 61 'is open and fitted within the cupshaped head member 57, engaging the base on the inside thereof and the inner surface of the side wall 60. The lower part of the sleeve 61 has a reduced wall portion 63 and extends into the upper part of the lower cam 37. The lower end 64 of the sleeve 61 is thickened into a head portion and is engaged with the piston rod 48 and is slidable thereon. Extending upwardly from the head portion 64 through the wall portion 63 and into the lower part of the wider sleeve 61, the sleeve is spaced from and concentric with the piston rod 48 and provides a chamber 65. Mounted within the chamber 65 is a coil spring 66, one end of which bears against the underside of the piston 50 and with the other end bearing against the head portion 64 of the sleeve. Surrounding the upper portion of the reduced part 63 of the sleeve and integral therewith is a cam surface 67 comprising the upper cam. The cam 67 has high points 68 and 69 and low points 70 and 71. The cam is directly opposite the lower cam 37, and when the two parts of the cam are engaged, the high points 68 and 69 will be in engagement with the low points 40 and 41 and likewise the high points 38 and 39 will be in engagement with the low points 70 and 71. The sleeve 61, as was stated above, is hollow in the upper part thereof and forms with the head 57 a cylinder or chamber 72, which cylinder moves through the influence of the cam with respect to the piston 50 which is held stationary as previously described. Extending from the chamber through the head is a passageway 73. The passageway at the other end thereof is connected with a valve housing 74, having a check valve therein. Extending downwardly from that housing 74 is a passageway 76. The lower end of the valve housing 74 has sealed therein a tube 77, which is flexible and which extends downwardly onto and in engagement with the inner surface of the bottom part 26. The lower end 78 is open and lying within the fluid contained in the container. The valve housing 74 has another flexible tube 79 ex tending upwardly to a dispenser valve housing 80. The dispenser valve 15 is within the housing 80 and is operated by the operating member 14 as previously described.

The device as shown in FIG. 2 discloses the chamber 72 filled with liquid, while as shown in FIG. 5, a portion of tha liquid has been dispensed. When all of the liquid contained in the chamber 72 has been dispensed, the head 57 and the sleeve 61 will have moved downwardly under the influence of the spring 66 to a point wherein the head is in engagement with the piston 50; and at this point, the high points 68 and 69 of the upper cam are in engagement with the low points 40 and 41 of the lower cam. If it is desired to recharge the chamber 72, the bottom part 26 is rotated relative to the body 11 thus causing the slopes 42 and 43 to ride along the high points 68 and 69 causing the sleeve 61 and the head 57 to move upwardly toward the cap 12 and compressing the spring between the head 64 of the piston 60. By this movement a vacuum is produced in the chamber 72 which will cause a vacuum in the tube 77 which in turn will draw the liquid into the opening 78 through the tube 77 by the valve 75 through the passage 73 into the chamber 72, thus filling the chamber. 'When the various parts are in the position as shown in FIG. 2, the container is then ready for dispensing of the contents within the chamber 72. The contents being under the pressure of the spring will cause the check valve 75 to close the tube 77 and the passageway 76 and upon operation of the valve 15 by the operating member 14, the material within the chamber 72 will be sprayed outwardly to the desired point of usage. The size of the chamber 72 controls the amount of the liquid which is sprayed and the time of the period of dispensing. Here again, the size of the chamber is controlled by the size of the container. The normal size container for liquids to be sprayed will allow a time period of less than a minute, but a longer time period may be had with a different size chamber.

A modification of the heretofore described dispenser is shown in FIG. 8, wherein any type of a container is used. The container has an opening 86 in theupper part thereof. The opening is surrounded by a lip 87 or, in fact, may have any type of opening to which a cap or other type of closure member 88 may be applied and sealed thereto. The container 85 has a side wall 89 and a bottom wall 90, all integral. The container 85, however, is not limited to this particular type of container in that the bottom 90 may be seamed to the side wall in the same manner as closing an ordinary can.

Mounted on the underside of the cap 88 or otherwise affixed thereto is an inverted cup-shaped member 91 having a double cam surface 92 on the lower surface thereof. The double cam surface will have two high points and two low points substantially similar to that shown in FIG. 7. The base 93 of the cup has a central opening 94 therein, which opening is round. The cap 88 has a like round opening 95 therein coinciding with the opening 94. Extending through the openings 94 and g 95 is a piston rod 96 Fixed to the upper end 97 of the piston rod 96 is a spray head and operating member 98. The lower surface 99 of the spray head is provided with a socket 100 into which the upper end 97 of the piston rod 96 fits and is sealed thereto. Also in the spray housing 98 is a passageway 101, a valve housing 102 and a combined nozzle and valve operating member 103. The housing 102 may contain any type of a spring pressed check valve, which when the spray nozzle 103 is operated, will in turn operate the valve. The spray nozzle 103 is latched against operation by the latch 104 which is constructed and operated in the same manner as the latch slide 19 previously described.

The cup-shaped member 91 has a second opening 105 larger in diameter than the previously mentioned opening 94. Slidingly received in the opening 105 is a hub 106. The hub 106 has a round outer surface 107 which fits in the opening 105 but is rotatable and reciprocable therein. The hub 106 has an opening 108 through the center thereof, engaging the piston rod 96 and is slidable thereon. The lower end 109 of the hub extends outwardly and downwardly to form a cylinder 110. The lower end 111 of the cylinder is opened and has slidably mounted within the cylinder a piston 112 carried by the lower end of the piston rod 96. The piston 112 carries a seal means 113 which seals the piston in its operation within the cylinder 110. The inner surface 114 of the piston has bearing against it a coil spring 115. Theother end of the coil spring 115 bears against the inner surface 116 of the upper end of the hub 106. Surrounding a portion of the hub 106, the entire cylinder 110 and enclosing the piston 112 in a housing 117, the upper end of which is provided with a cam surface 118, which surface is complemental to the cam 92. Extending through the piston rod is a passageway 119, which passageway is connected to the passageway 101 in the spray head and operating member 98. The lower end of the housing 117 is closed by a cover 120 which becomes the end of the fluid chamber upon operation of the cylinder by the cams. The cover 120 has an opening 121 therein. A tube 122 extends downwardly from the opening 121 and is connected thereto and extends into the bottom of the container so that any fluid in the container may enter through the tube into the chamber 123. The upper end of the tube 122 has a valve housing 124 containing a check valve 125.

As has been previously stated, this particular dispensing mechanism as shown in FIG. 8 may be attached to any type of container such as a bottle or a can which has an open mouth or end. All of the dispensing mechanism is first assembled on a cap or cover for the container and is then inserted into and on the container with the cap or cover being sealed thereon. By rotating the spray head nozzle and the operating member 98, one-half turn or less, the housing 117 is moved downwardly as shown in the dotted lines by virtue of the cam surface 118 engaging the cam surface 92 and being forced downwardly by the rotation of the cam 118 relative to the cam 92. The housing 117 and the cylinder being forced downwardly by operation of the two cams will move the housing and cylinder downwardly away from the head of the piston 112 and against the pressure of the spring 1 15. This movement causes avacuum in the chamber 123 thus produced by such movement, and this vacuum will cause liquid within the container to pass through the tube 122 by the check valve 125 into the chamber 123. Upon rotation of the spray head and operating member 98, the chamber 123 will be filled with a predetermined quantity of fluid. Then by operation of the nozzle 103, the fluidwill be dispensed through the passageway 119 by the valve in the housing 102 and outwardly through the nozzle. The pressure to move the fluid is produced by the pressure of the spring acting against the head 112 of the piston to force the housing 117 and the cylinder 110 upwardly toward the piston head 112.

As previously described, the size of the chamber 123 controls the amount of fluid which will be dispensed and the length of time it takes to dispense that particular amount of fluid. When the chamber is empty it is only necessary to again rotate the spray head and operating member 98 to recharge the chamber 123.

A further modification of the dispensing device is shown in FIGS. 11 and 12, wherein a container is used having side wall 131, a top wall 132 and an open bottom 134. The open end of the container 134 is closed by a cap 135 having side flange 136. The side flange has a groove 137 and the container near the end thereof is provided with a rib 138. The rib and groove providing the seal between the cap and the container. The cap has a fill opening 139 closed by a screw 140 through which the container may be refilled with the liquid after the contents thereof have been dispensed. Mounted on the inner wall 141 of the side wall of the container and affixed thereto is a cylinder 142. The cylinder 142 is mounted on the inner wall 141 by being cemented to or otherwise affixed to asemicircular shaped pocket 143 which may be integral with the inner wall 141. The cylinder 142 is of arcuate formation and extends approximately 1/2 of the circumference of the inner wall 141. The cylinder has a closed end wall 144 at one end thereof and a partially closed wall 145 at the other end thereof. The wall 145 has an opening 146 therein through which a piston rod 147 extends. The piston rod 147 has a piston 148 on the end extending into the cylinder. A coil spring 149 has one end thereof bearing against the piston 148 and the other end bearing against the partially closed wall 145. The piston rod 146 is also arcuate in shape and has the end opposite to the piston head 150 connected to an upstanding post 151 which upstands from and is connected to the cap 135. Adjacent the closed end of the cylinder is an opening 152 to which is connected a tube 153. The tube 153 extends upwardly to the top wall 132 of the container to a valve housing 154. A spray nozzle 155 and valve wall 132 and when depressed will operate the valve contained in the housing 154. A locking slide 156 of the same type as previously described is mounted on a the outside of the top wall 132 and when placed under the spray nozzle 155 will prevent operation of the same. Extending also from the cylinder 142 adjacent the closed end thereof is a valve housing 157 having a check valve 158 therein. Extending from the valve housing 157 is a filltube 159, the free end of which is open and lying .On the bottom cap of the container.

By rotating the cap 135 in a counter clockwise direction relative to the container 130, the piston 148 is drawn toward the partially closed end 145 of the cylinder by virtue of the free end of the rod being connected to the post 151. This action of the piston with respect to the cylinder creates a vacuum therein, thus causing a suction within the tube 159 through the check valve 158 into the cylinder. This suction causes the fluid contained in the container to be drawn into the cylinder. Also, the movement of the piston 148 in this manner compresses the spring 149. When. the piston has reached the end of its stroke, the cylinder is now charged witha predetermined amount of fluid. By manipulation of the spray nozzle 155, the valve in the housing 154 is operated, thus allowing the pressure of the spring 149 upon the contents of the cylinder to be forced upwardly through the tube 153 and out through the spray head 155.

The size of the cylinder and piston may be varied so that different predetermined amounts may be drawn into the cylinder and also the extent of the rotation of the cap 135 will move the piston predetermined amounts to likewise effect a predetermined charge in the cylinder.

A further safety feature is incorporated in the dispenser; and, more particularly, in the check valve in the fill tube which allows the fluid contained in the container to flow into the chamber when the container is manipulated to fill the chamber, but which will prevent flow of the liquid back into the container when the same is being discharged from the chamber. Such feature is incorporated in the check valve itself; and although disclosed in the position and shape of the housing in FIGS. 2 and 5, it may also be used in connection with the other figures.

F 1G. 13 discloses a poppet-type check valve 162 mounted in the housing 163. The valve 162 has a stem 164 and a head 165. The head is provided with a beveled side 166. The valve chamber 163 is provided with a beveled side wall 167. The bevel of the valve 166 and the bevel of the seat 167 are not exactly complementary. However, they are complementary enough so that the valve is practically seated to prevent backflow when the discharge valve is opened but which will allow a slow leak back or flow back into the container when any fluid is left in the chamber and the container is not being operated but has been placed on a shelf.

The form disclosed in FIG. 14 discloses a ball-type check valve 170, having minute depressed areas 171 on the surface thereof. In using this type of valve with the minute depressed areas on the surface thereof, no matter when the valve is contacting the seat 167, there will always be at least one depressed area at the seating portion. Such depressed area will, therfore, allow a slow feed back of the luqiid from the chamber into the container when the container is placed on a shelf with some of the fluid still in the chamber.

Thus, it will be noted that any fluid contained in the dispensing chamber is under the pressure of the spring between the moving part and the fixed part constituting the chamber. As long as the dispensing valve and nozzle are being operated, the fluid will be forced outwardly through the nozzle by the spring pressure. Should there be, however, any fluid remaining in the chamber after operation of the dispensing valve and nozzle and the container placed on a shelf and further if the dispensing nozzle and valve operating member is not latched as heretofore described, there is a danger that a child or other person upon picking up the container and operating the dispensing valve might be put in the position of a danger upon dispensing of the remaining fluid in the chamber. By making the check valves as shown and described in connection with FIGS. 13 and 14, the pressure of the spring upon the contents of the chamber will cause that fluidto flow back past the check valve and into the container. Thus, in a short period of time, the chamber will become empty of any fluid, thereby reducing the hazard of injury to a child or person picking up the container and operating the dispensing nozzle.

A further modification of the dispenser is shown in FIGS. 15 to 19, inclusive, wherein a predetermined amount or a measured amount of the liquid within the container may be dispensed by means of setting an indicator on the preferred amount and rotating the top of the mechanism clockwise until it is stopped and then by actuating a valve, the desired amount will be dispensed in accordance with the setting of the desired amount.

There is shown in FIG. 15, a bottle 175 having an elongated neck 176 closed by a cap 177 and mounted on the cap is an operating member 178 having a flow opening 179 therein. The operating member having thereon a series of valuations 180, which valuations may stand for fluid ounces or any other particular measurement commensurate with the contents of the bottle 175. The operating member 178 is substantially solid and has a top wall 181, a side wall 182, and a bottom wall 183. Extending downwardly from the graduations 180 on the side wall 182 and from each graduation are series of lines 184. The bottom wall 183 has a series of notches 185 cut therein, each notch being at the base of each line 184. Spaced inwardly from the outer wall 182 and extending into the body 178 on the bottom wall 183 is an opening 186. A lever 187 having a pin 188 adjacent one end 189 is pivotally mounted on the bottom wall 183 by inserting the pin 188 into the opening 186. The other end 190 of the lever 187 has a rib or protuberance 191 thereon which during operation of the device engages the notches 185. By moving the lever 187 into the desired notch for the particular evaluation or indication, that amount of fluid can be dispensed through the opening 179 in the operating memher 178. The lever 187 also acts as a stop member for rotating the operating member 178 a distance to actuate the operating mechanism within the neck of the bottle to draw into a chamber the amount of liquid desired to be dispensed and then to dispense that desired amount.

Mounted on the underside of the cap 177 is an operating mechanism 192 which may be similar in all respects to the mechanism disclosed and described in FIG. 8. The dispensing mechanism 192 is fitted within the neck 176 and one part thereof is rotatable within the neck. Affixed to the underside of the cap 177 is an inverted cup 193 having on the lower surface thereof, one part of a cam 194. The cup-shaped member 193 has a circular opening 195 therein into which extends a hub 196 which is rotatable in the opening. Extending downwardly from the hub 196 is a cylinder 197 having at the lower end thereof a piston 198. Surrounding a portion of a hub and all of the cylinder is a housing 199 having a closure wall 200 at the lower end thereof which closes the lower end of the cylinder. The upper surface of the housing 199 is provided with a cam surface 201, which is complemental to the cam surface 199 on the cup-shaped member 193. Mounted within the cylinder is a coil spring 202, one end of which bears against the end of the cylinder 203 with the other end bearing against the piston 198 and maintaining the piston in the position shown in FIG. 16. Connected to the piston is a piston rod 204, which rod is square in formation. The piston rod extends upwardly through the hub 196 through the inverted cup 193, which has a circular opening therein, and through the cap 177 which has a like circular opening therein. The upper end of the piston rod 204 is fitted into the operating member .178 in the same manner as shown in FIG. 8. Upon turning the operating member 178 in-a clockwise direction after setting the lever 187, the cam surface 201 will ride downwardly on the cam surface 194 which in turn will force the cylinder 197 downwardly and compressing the spring 202 against the head of the piston. Such acasmuch as the operating member 178 will only be moved a predetermined distance in accordance with the setting of the lever 187. By operation of the finger piece 207 on top of the operating member 178, a valve contained in the housing 208 will be opened, thus allowing the contents in the passageway 209 in the piston rod to be dispensed through the opening 179 into a container 210.

In order to limit the amount of rotation of the operating member 178 and to also cause it to return to its normal position, there is mounted on the cap 177 a tube 211. The tube 211 has each end thereof closed by walls 212 and 213. Contained within the tube is a coil spring 214. One portion of the tube 211 has a slot 215 cut therein substantially the full length thereof. Carried on the bottom wall 183 of the operating member is a pin 216 which extends downwardly into the slot and is engaged by one end of the coil spring 214. Upon setting the lever 187 for the desiredamount to be dispensed from the container and rotating the operating member 178, the pin 216 will compress the spring 214 within the tube 211 until such time as the lever 187 engages the end 213 of the tube 211. When this happens, the operating member 178 is released and the spring will force it back to its normal position. During the turning of the operating member 178, the desired amount of the fluid contained within the bottle will be pumped into the chamber. Upon operation of the finger piece 207, that amount of fluid will then be dispensed through the opening 179.

As this invention may be embodied in several forms without departing from the spirit or essential characteristics thereofythe present invention is "therefore illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description preceding them, and all changes that fall within the metes and bounds of the claims or that form their functional as well as conjointly cooperative equivalents, are therefore intended to be embraced by those claims.

What is claimed is:

1. A dispensing container for liquids, said container having a side wall and opposite ends, a liquid dispenser on one end of said container, a cylinder mounted in said container, a piston in the cylinder mounted for relative reciprocation between the piston and cylinder, said piston and cylinder defining a chamber for liquid to be dispensed, a first conduit connected with said cylinder and in communication with said chamber, check valve means in said first conduit to enable flow through said conduit to said chamber and prevent reverse flow therethrough, a second conduit connected at one end thereof with said cylinder in communication with said chamber and connected at its other end with said dispenser, a manually operated, normally closed valve means in said second conduit to normally prevent flow of liquid from said chamber and operable to enable flow from said chamber to said dispenser, a spring means engaged between said piston and cylinder to urge relative reciprocation between said piston and cylinder to pressurize liquid in said chamber and dispense said liquid through said dispenser when said valve in said second coduit is open, manually operable, rotatable operating means carried by said container externally thereof, a piston rod connected at one end thereof to said piston and extending axially from said cylinder and connected at its other end to said operating means, so that relative rotation between said container and said operating means causes relative reciprocation between said piston and cylinder to compress said spring and enlarge said chamber to draw liquid thereinto for subsequent dispensing of said liquid when said manually operated valve is opened and said spring expands to pressurize the liquid in said chamber.

2. A dispensing container as in claim 1, wherein the opposite ends of the container comprise top and bottom parts of the container, one of said parts comprising the rotatable operating means.

3. The container as in claim 2 wherein adjustment means is associated with the rotatable part to limit the rotation to dispense a measured quantity of the liquid.

4. The container as in claim 3 wherein the rotatable part is the top part, the adjustment means is a lever pivotally mounted on the top part, the lever engaging indicating means on the top part and stopping rotation of the top part at a preset point in accordance with the indicating means, and means operatively connected with the top part to return the top part to original position.

5. The container as in claim 3 wherein the rotatable part is the top part, indicia carried by the top part to indicate measured quantities, notches in the top part adjacent each indicia, the top part having an opening therein, a lever having a pin adjacent one end, the pin being received in the opening thus pivotally mounting the lever on the top part, the lever having a rib adjacent the other end, the rib engaging in the notches, the lever engaging a stop on the container to limit the rotation of the top part and thus limit the amount of liquid in the chamber to a pre-set quantity and resilient-meansoperatively connected with the top part to return the top part to original position.

6. The container as in claim 3 wherein the container is provided with a cap and the top part is mounted on the cap and rotatable in relation thereto, a slotted tube mounted on the cap, a spring within the slotted tube, the top part having a .pin extending therefrom and through the slot intothe tube, the adjustment means comprising a lever pivotally mounted on the top part, indicia means on the toppart, notches in the top part adjacent each indicia, the lever having a rib thereon engaging in the notches, the lever being set in the desired notch and the top part being rotated, the lever engages the slotted tube to stop the rotation of the top part thus effecting movement of one of the members to draw into the chamber the desired quantity of liquid, upon release of the top part the spring will return the top part to original position'and the desired quantity dispensed through the discharge means.

7. The container as in claim 2 wherein the container is a bottle having an elongated neck and a mouth, a cap covering the mouth, the cylinder and piston being within the neck, the operating means comprising a stationary cam mounted on the underside of the cap and a rotatable cam having a face complementaryv to the stationary cam, the piston rod extending upwardly through the cap and connected with the top part, said top part being rotatable, the cylinder being within the rotatable cam and reciprocated by the rotation of the cam, the piston rod extending through the rotating cam and into the cylinder, the spring means comprising a coil spring within the cylinder, one end of the spring bearing on the cylinder and the other end bearing on the piston, said first conduit connected at one end to the cylinder and the other end being on the bottom of the container, the top part having indicia thereon indicating predetermined quantities of liquid, notches on the top part adjacent each indicia, a lever pivotally mounted on the top part, the lever-being mounted at one end thereof and having a rib at the other end, the rib engaging in one of the notches to set the quantity, a tube mounted on the cap and having a slot therein, a coil spring within the tube, the toppart having a pin extending downwardly therefrom and into the: slot, the pin being in engagement with the coil spring of the tube at one end thereof, said cams reciprocating the cylinder upon rotation of the top part to draw liquid into the cylinder, said lever engaging one end of the tube to stop rotation of the top part when the predetermined quantity is drawn into the cylinder, and said top part, when released, returned to its original position by the coil spring in the tube, and upon operation of the valve in the second conduit, such predetermined quantity will be dispensed from the cylinder.

8. The container as set forth in claim 2 wherein the bottom part is the operating means.

reciprocation of the cylinder but preventing rotation thereof.

12. The container as in claim 9 wherein the top part supports the cylinder, the cylinder being reciprocated relative thereto.

13. The container as in claim 12 wherein the cylinder has a cam member associated therewith, the cam being reciprocated with the cylinder.

14. The container as in claim 2, wherein the operating means comprises cooperative cam members associated with the piston and cylinder.

15. The container as in claim 14 wherein the cam member associated with the piston member-is rotated by the bottom part.

16. The container as in claim 14 wherein the cam member associated with the cylinder is reciprocated by the rotation of the cam member associated with the piston.

17. The container as in claim 16 wherein the cylinder is reciprocated and moved away from the piston by the rotation of the cam member associated with the piston thus enlarging the chamber and drawing in the fluid into the chamber from the container.

18. The container as in claim 1 wherein the first conduit has a free end in the bottom of the container.

19. The container as in claim 18 wherein the check valve means has means thereon allowing slow by-pass of the liquid from the chamber to the container when any liquid remains in the chamber after a dispensing operation.

20. The container as in claim 19 wherein the check valve comprises a poppet valve having a bevel face and reciprocable in a conically shaped valve housing, the bevel face being substantially complementary to the conical shape but allowing by-pass of any liquid left in the chamber to return to the container when the container is not in use.

21. The container as in claim 19 wherein the check valve comprises a ball reciprocable in a conically shaped valve housing, the ball having minute depressions on the surface thereof, the depressions allowing by-pass of any liquid left in the chamber to return to the container when the container is not in use.

22. The container as in claim 2 wherein valve operating means for the manually operated valve means extends above the top part, the top part having a locking means thereon, the locking means engaging the valve operating means and preventing operation thereof.

23. The container as in claim 2 wherein the piston rod is mounted on the bottom part and rotated thereby, operating means including a first cam mounted on the bottom part and rotated therewith, the cylinder is carried by the top part, a second cam associated with the cylinder and operatively interengaged with the first cam, the second cam being reciprocated by the rotation of the first cam and reciprocation of the second cam reciprocating the cylinder, the cylinder having an extension thereon surrounding the piston rod and being reciprocated with the cylinder relative to the rod, the spring means comprises a coil spring surrounding the piston rod with one end bearing against the piston and the other end bearing against the extension of the cylinder, the spring being compressed upon reciprocation of the cylinder said first conduit having a free end resting on the bottom of the container, the reciprocation of the cylinder drawing the liquid within the container into the chamber where it is placed under the pressure of the compressed spring, and said check valve in the conduit holding the liquid in the chamber until operation of the manually operated valve means to discharge the liquid from the chamber under the pressure of the spring.

24. The container as in claim 2 wherein the container has a cover thereon, the piston and cylinder being mounted on the underside of the cover, the top part being mounted on the outside of the cover, the piston rod extending through the cover and connected to the top part, rotation of the top part rotating the piston, and operative means connected with the piston and the cylinder and being rotated by the rotation of the piston and reciprocating the cylinder relative to the piston.

25. The container as in claim 24 wherein the operative means comprises a first cam stationarily mounted on the under side of the cover, and a second cam rotated by the piston rod and the top part, the rotation of the second cam causing reciprocation of the cylinder through the reaction of the two cams relative to one another.

26. The container as in claim 24 wherein the piston rod is of a square shape with the free end seated in a socket in the top part, the cover having a round opening through which the rod extends, the operative means comprises a first cam attached to the under side of the cover, the first cam having a round opening extending therethrough and coinciding with the opening in the cover, the cylinder having an extension thereon extending into the first cam and being rotated relative thereto by the piston rod, a second cam surrounding the cylinder and rotated by the piston rod with the extension, the complementary surfaces of the cams causing reciprocation of the second cam relative to the first cam, the reciprocation of the second cam causing reciprocation of the cylinder relative to the piston and drawing liquid into the chamber, and said discharge means being on the top partto discharge the liquid in the chamber.

27. The container as in claim 26 wherein the spring means comprises a coil spring within the cylinder, the cylinder having a closed base at the extension, the spring having one end bearing upon the base and the other end bearing upon the piston, the spring being compressed by the reciprocation of the cylinder relative to the piston.

28. The container as in claim 2 wherein the container has an open mouth, a cover sealing the mouth, the top part being mounted on the outside of the cover, the top part being rotated relative to the container, the cylinder and piston being mounted on the under side of the cover, the cylinder being reciprocated by the rotation of the top part, the operating means including a first cam fixedly mounted on the undersidev of the cover, and a second cam rotated by the rotation of the top part, the two cams having complementary engaging surfaces, the piston rod having a square cross section and extending through the cover, the top part having a socket therein receiving the free end of the rod, the cover having a round opening therein, the first cam having a round opening therethrough and coinciding with the opening in the cover, the rod extending through the openings and being rotatable therein, the cylinder having a base and an extension extending upwardly from the base, the extension having a square opening therethrough, the rod extending through the square opening and rotating the cylinder upon rotation of the rod, the second cam surrounding the cylinder and rotated therewith, the rotation of the second cam and cylinder reciprocating the cylinder relative to the piston, the spring means comprising a coil spring mounted within the cylinder, one end of the spring bearing against the base and the other end bearing against the piston and being compressed by the reciprocation of the cylinder, said first conduit having one end connected to one end of the cylinder and a free end resting on the bottom of the container, and said check valve being in said one end, the liquid being drawn into the chamber by the reciprocation of the cylinder and placed under pressure therein by the compression of the spring.

29. The container as in claim 1 wherein the container comprises a side wall, a top wall and a rotatable bottom wall, the cylinder being fixedly mounted on the side wall, the cylinder having a closed end and an apertured wall at the other end, the piston being slidably mounted within the cylinder, the piston rod extending through the apertured wall of the cylinder, the rod having a free end, the bottom wall having a post extending upwardly therefrom, the free end of the rod being connected to the post to reciprocate the rod and piston upon rotation of the bottom wall, the spring means comprising a coil spring surrounding the rod within the cylinder, one end of the spring bearing against the piston and the other end bearing against the apertured wall, the spring being compressed upon reciprocation of the piston in the cylinder to enlarge the chamber, the spring effecting pressurization of the liquid in the chamber when compressed, said first conduit having one end connected to the cylinder adjacent the closed end and the other end resting on the bottom wall of the container, the reciprocation of the piston drawing the liquid into the chamber, said check valve allowing free flow of the liquid into the cylinder-and allowing very restricted flow back into the container, and said second conduit having one end connected to the cylinder adjacent the closed end and the other end connected to the discharg means 30. A dispensing container for liquids, said container having a side wall and end closure means on opposite ends thereof, one of said end closure means being rotatable relative to the side wall, a cylinder carried by the side wall within the container, a piston slidably mounted within the cylinder and defining withthe cylinder a chamber for liquid to be dispensed, a piston rod connected at one end thereof to said piston and extending axially from said cylinder and connected at its other end to said rotatable end closure means so that rotation of said rotatable end closure means causes relative reciprocation between said piston and cylinder in a direction to enlarge said chamber, resilient means operatively connected with said piston and cylinder to cause relative reciprocation therebetween in a direction to reduce the size of said chamber and pressurize liquid therein, a discharge means on one end of said container, conduit means connected between said chamber and said discharge means, and valve means in said conduit means to control flow of liquid therethrough and operable to allow discharge of said liquid through said dispenser means by the pressure of the resilient means.

31. The container'as in claim 30 wherein the cylinder has one closed end and another end enclosing the piston rod, the resilient means being a coil spring surrounding the piston rod and having one end bearing against the piston and a second end bearing against the 1 5 enclosing end of the cylinder and being compressed by the reciprocation of the piston 32. The container as in claim 31 wherein a first conduit is connected to the cylinder adjacent a closed end thereof, the first conduit having a free end resting on the bottom of the container, the first conduit having a check valve therein at the connection with the cylinder, and said conduit means is connected to the cylinder adjacent the closed end. 3

33. A dispensing container for liquid, said container having a side wall and opposite ends, a liquid dispenser on one end of the container, 3 cylinder mounted within the container for reciprocating movement in the container, a piston in the cylinder and defining with the cylinder a chamber for liquid to be dispensed, spring means engaged between the piston and cylinder urging the cylinder in a direction relative to the piston to reduce the size of the chamber, a piston rod connected at one end to the piston and extending axially from the cylinder at its other end, a manually operated rotatable actuating means carried by the container extemally thereof, said other end of said piston rod connected to said actuating means to secure said piston against reciprocation, interengaged cam means operatively connected with said rotatable actuating means and said cylinder to cause reciprocation of said cylinder in a direction to compress said spring and enlarge said chamber when said actuating means is rotated, first conduit means connected with said cylinder in communication with said chamber, check valve means in said first conduit means to enable flow through said conduit means into said chamber when said actuating means is rotated to enlarge said chamber and to prevent reverse flow therethrough, second conduit means connected at one end thereof with said cylinder in communication with said chamber and connected at its other end with said dispenser, and normally closed manually operated valve means in said second conduit means to preclude flow of liquid from said chamber to said dispenser when said valve is closed and operable to allow flow from said chamber to said dispenser when said valve is open and said spring expands to pressurize liquid in said chamber.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1997365 *Mar 4, 1931Apr 9, 1935Rockwood Sprinkler CoValve device for bleed opening
US2600187 *Apr 11, 1947Jun 10, 1952Murdock Mfg & Supply CoWater service fixture
US2686652 *Jan 29, 1951Aug 17, 1954Viking Valve CompanyValve apparatus
US3101751 *Mar 20, 1961Aug 27, 1963Dosamatic Dropper CorpLiquid dropper assembly
US3471065 *Mar 11, 1968Oct 7, 1969Afa CorpLiquid spraying device
US3506164 *May 31, 1968Apr 14, 1970Sherwood Medical Ind IncAutomatic pipette
US3514017 *Mar 3, 1969May 26, 1970Afa CorpPressure regulating structure for piston pump
FR768271A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4057176 *May 5, 1976Nov 8, 1977Plastic Research Products, Inc.Manually operated spray pump
US4105145 *Sep 16, 1976Aug 8, 1978James D. PaulsMechanically operated dispensing device
US4147280 *Dec 20, 1976Apr 3, 1979Spatz CorporationPump device for dispensing fluids
US4155485 *Mar 11, 1976May 22, 1979Spatz CorporationPump devices for dispensing fluids
US4162030 *Apr 20, 1977Jul 24, 1979J. Claybrook Lewis and Associates, Ltd.Disposable package dispenser having a pressure release channel
US4167941 *Oct 5, 1976Sep 18, 1979James D. Pauls, Ltd. (Limited Partnership)Mechanically operated dispensing device for increasing discharge pressure and dispensing time
US4174052 *Dec 20, 1977Nov 13, 1979James D. Pauls, Ltd.Mechanically operated dispensing device with expansible bulb
US4784601 *Jan 20, 1988Nov 15, 1988Tokai CorporationGas lighter equipped with a safety lock
US4872595 *Sep 27, 1988Oct 10, 1989Roy HammettMechanically pressurized aerosol dispenser
US5285966 *Sep 30, 1992Feb 15, 1994Czewo-Plast Kunststofftechnik GmbhSpraying apparatus having internal chamber selectively pressurized by a pressurizing device
US5310092 *Apr 29, 1991May 10, 1994Bespak Plc.Pump dispensing device
US5810211 *Oct 14, 1997Sep 22, 1998Hayes Products, LlcFor a container defining a neck
US5816447 *Mar 6, 1997Oct 6, 1998Hayes Products, LlcNon-aerosol pump spray apparatus
US5860574 *Oct 14, 1997Jan 19, 1999Hayes Products, LlcPump assembly with bayonet lock
US5918782 *Oct 14, 1997Jul 6, 1999Hayes Products, LlcPump assembly with sprayer
US5964416 *Oct 4, 1996Oct 12, 1999Boehringer Ingelheim GmbhDevice for producing high pressure in a fluid in miniature
US6089414 *Oct 14, 1997Jul 18, 2000Hayes Products, LlcPump assembly with one piece piston
US6296154May 30, 2000Oct 2, 2001Hayes Products, LlcPump assembly with one piece piston
US6360922Apr 27, 2000Mar 26, 2002Hayes Products, LlcPump assembly with pressure release capability
US6402055Jul 16, 1999Jun 11, 2002Boehringer Ingelheim GmbhDevice for producing high pressure in a fluid in miniature
US6467657Sep 5, 2001Oct 22, 2002Donald J. ShanklinPump assembly with one piece piston
US6497373May 13, 2002Dec 24, 2002Boehringer International GmbhDevice for producing high pressure in a fluid in miniature
US6543703Dec 26, 2000Apr 8, 2003William S. BlakeFlexible face non-clogging actuator assembly
US6918547Mar 24, 2004Jul 19, 2005Joachim JaegerDevice for producing high pressure in a fluid in miniature
US7104470Jun 24, 2005Sep 12, 2006Boehringer Ingelheim International GmbhDevice for producing high pressure in a fluid in miniature
US7198178Mar 1, 2004Apr 3, 2007Shanklin Donald JPump assembly with piston
US7427004Oct 20, 2004Sep 23, 2008Meadwestvaco Calmar, Inc.Hand held pressurized sprayer
US7789275Sep 12, 2005Sep 7, 2010Meadwestvaco Calmar, Inc.Pump assembly with continuous tube
DE2622077A1 *May 18, 1976Dec 2, 1976OrealBehaelter zum lagern und abgeben wenigstens eines produktes
WO1981000220A1 *Jul 24, 1979Feb 5, 1981James Pauls LtdMechanically operated dispensing device with expansible bulb
WO1990003317A1 *Mar 14, 1989Apr 5, 1990Cidco Group IncMechanically pressurized aerosol dispenser
WO1991016993A1 *Apr 29, 1991Nov 14, 1991Bespak PlcDispensing device
WO1996012566A1 *Oct 20, 1994May 2, 1996Victor WassilieffDevice for pressure diffusing a fluid product
Classifications
U.S. Classification222/43, 239/329, 222/321.7, 222/340
International ClassificationB05B9/08
Cooperative ClassificationB05B9/0883
European ClassificationB05B9/08C6B