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Publication numberUS3203597 A
Publication typeGrant
Publication dateAug 31, 1965
Filing dateJan 22, 1964
Priority dateJan 22, 1964
Publication numberUS 3203597 A, US 3203597A, US-A-3203597, US3203597 A, US3203597A
InventorsBirch Richard W
Original AssigneeBard Parker Company Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical soap dispenser
US 3203597 A
Abstract  available in
Images(4)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 31, 1965 R. w. BIRCH 3,203,597

SURGICAL SOAP DISPENSER Filed Jan. 22, 1964 4 Sheets-Sheet 1 Tn N \ INVENTOR. g 2161mm) m BIRCH E BY Aug. 31, 1965 w, BIRCH 3,203,597

SURGICAL SOAP DISPENSER Filed Jan. 22, 1964 4 Sheets-Sheet 2 Q x2 :4 ims k INVENTOR. EICHAED 7M BIRCH ATTUEAZE Aug. 31, 1965 R. w. BIRCH 3,203,597

SURGICAL SOAP DISPENSER Filed Jan. 22, 1964 4 Sheets-Sheet 4 United States Patent 0 York Filed Jan. 22, 1964, Ser. No. 339,389 18 Claims. (Cl. 222-'ll79) This invention relates to dispensers and, m P larly, to a scrub dispenser for liquid surgical soap. Although this invention has wider application in the d spensing field especially liquid dispensing, the instant disclosure will .be directed primarily to surgical scrub dispensing; it being generally understood in this field that a surgical scrub embodies liquid antiseptic soap.

In hospitals today, surgeons hands, together with the surgical site, are prepared by a scrubbing operation. Those assisting in the operation will also scrub where necessary. Conventional surgical soap dispensers are either mounted on a Wall or a fioor stand. However, these prior art dispensers present a number of major problems as now will be outlined.

Essentially all known scrub dispensers have bottles or containers that are required to be refilled periodically. Accordingly, refilling and, most important of all, cleansing of the dispenser have constituted major cost item-s. Needless to say, there is the inherent danger of contamination, bacteria and micro-organism transfer and cross infection incident to the use and operation of these dispensers. In this connection, when solution levels have dropped in the generally upright surgical soap dispenser bottles, experience has shown that growth of bacteria is supported in the bottle above the liquid level. When the level approaches the bottom of the container, practice has been to throw away the remaining scrub because it usually becomes visibly dirty. Under these circumstances, there is waste of surgical soap.

It is, therefore, a principal object of this invention to provide a surgical soap dispenser that is inverted and provides a closed system whereby the interior of the soap container has minimum exposure to airborne particles and bacteria thereby assuring asceptic dispensing conditions.

Another object is to provide a surgical soap dispenser which includes a container or bottle having a built-in metering pump reducing scrub wastage to a minimum, together with a dispenser having a relative disposition of parts which permits substantially all of the scrub to be used; as Well as a dispenser of this type which is disposable thereby eliminating cleansing requirements.

-A further object is to provide a surgical soap dispenser possessing a relatively few number of parts each individually simple in construction and readily assembled, together with a dispenser that is relatively automatic and accurate and simple to use by those in a position most likely to use it, notably physicians and nurses.

Still another object is to provide a disposable surgical soap container having a builtin metering pump for use with surgical soap dispensers.

A still further object is to provide an improved metering pump and valve arrangement suitable for use with a container of the type mentioned for surgical soap dispensing.

An additional object is to provide an improved bracket for mounting the disposable surgical soap container having a built-in metering pump, together with an actuator mechanism coopera ble with the metering pump in providing for dispensing of accurate metered dosages of soap with accompanying minimization of wastage.

As another important object, the present invention contemplates the application of the foregoing t-o dispensing fields other than that of surgical soap.

ice

In accordance with the particular embodiment of applicants invention described in detail herein, a disposable surgical soap container is adopted and may he basically a fabrication of blown plastic of the type common to the detergent bottle market today. Built into the top or cover of this bottle is a pump. Sufiice it to say that thls pump is essentially of the metering type which operates on a suction intake principle with typical piston action in dispensing metered amounts of soap. A floating valve is incorporated into the pump structure for purposes of assuring the regulated metered dosages of soap. When the contents of the soap container are expended, the entire bottle with pump is discarded. On the other hand, a semi-disposable unit is contemplated wherein merely the bottle is discardable and the cap with built-in metering pump removable and then reusable following a cleans-ing operation.

In order to conveniently mount the soap container in a hospital and particularly in a scrub room, a bottle mount and pump actuator mechanism is combined in a single bracket adapted to be mounted on a wall or a portable stand. In .the first instance, the actuator may be operated either by hand, elbow or forearm whereas, in both cases, a foot operated pedal can be employed. The bottle with built-in pump is inverted and mounted by means of this bracket. The piston rod of the pump cooperates with the actuator mechanism in providing a keying structure for assuring the proper disposition and orientation of the bottle with respect to the bracket. In this connection, the bracket mount is formed with a keyway which receives the piston rod at a particular disposition at which the rod is unaligned with the actuator mechanism. In order to attain the desired aligned relationship and, consequently, mating of the piston rod and actuator mechanism, the bottle, together with the pump,

is rotated following the passage of the piston rod through the keyway in the bracket mount. When the bottle is rotated, the end of the piston rod will, in effect, latch with the associated surfaces of the actuator mechanism. Movement of the operating parts of the actuator mechanism will induce corresponding movement to the piston rod. When the contents of the container are exhausted, the bottle need only be rotated in a reverse direction to uncouple the latched piston rod and actuator mechanism. The bottle is then removed by lifting the piston rod out of the keyway in the bracket mount and a fresh supply or bottle is used in replacement.

Other objects and advantages will become apparent from the following detailed description which is .to be taken in conjunction with the accompanying drawings illustrating a somewhat preferred and at the same time, exemplary embodiment of the invention.

FIG. 1 is a foot pedal operated surgical soap dispenser in accordance with this invention mounted on a portable stand;

FIG. 2 is an enlarged longitudinal sectional view of the dispenser;

FIG. 3 is a fragmentary cross sectional view taken along the line 33 of FIG. 2;

FIG. 4 is another fragmentary cross sectional View taken along the line 4-4 of FIG. 2;

FIG. 5 is a sectional view taken along the line 55 of FIG. 2; and

FIGS. 6 to 9 illustrate a sequence of operation of the pump built into the cap of the bottle with FIG. 6 illustrating the start of the pumping stroke at which time liquid in the pump cylinder is forced out through the dispensing nozzle with a ring valve disposed such that the outlet part of the container is closed and the dispensing nozzle is opened, FIG. 7 illustrates the pump during the pumping stroke, FIG. 8 illustrates the pump at the end of the pumping stroke and start of the suction intake stroke with the ring valve disposed so that the outlet nozzle of the cap is closed and the port leading from the interior of the container is opened to permit a metered amount of liquid to be drawn into the pump chamber, and FIG. 9 shows the pump during the retraction stroke at which liquid is drawn into the pump chamber from the interior of the container.

FIG. 10 is an enlarged longitudinal sectional view of th piston;-

FIG. 11 is a fragmentary sectional view taken along the line 1111' of FIG. 5; and

FIG. 12 isan enlarged and exploded perspective view of the lower part of the receptacle and the top and bottom of the housing of the actuator.

In the drawings, a surgical soap dispenser is shown and includes a disposable bottle 22 and mounting bracket 24 coupled with a portable stand 26. The bottle 22 is provided with a cap 28 having a built-in metering pump assembly. The bracket mount 32 conveniently receives this end of the bottle and cooperates in permitting the piston assembly to be coupled with the actuator assembly 34.

Bottle The bottle or soap container 22 may be of any desired capacity whether it be'one-quart, one-gallon or larger or an odd size. In order to promote the disposability of the soap container, it may be fabricated by means of a blow molding technique as is commonly the case with commcrcially available detergent bottles. The neck 36 of the bottle is reduced and provided with external threads 38.

Cap

The cap 28 for the bottle 22 may be formed from low cost moldable material. It is provided with internal threads 40 on sidewall 42 extending from the cap cover 44. This cover plate 44 is provided with a discharge opening 46 slightly eccentrically located with respect to the origin of the radius of the periphery of the cover 44 as well as the side wall 42. A further opening 48 is formed in the cover plate 44 for purposes of receiving a tube and cooperating in providing a vent permitting the ambient atmosphere or air to pass therethrough to replace the discharged liquid soap from the bottle 22. The tube 50 has its top constricted and slit to provide a flap valve which ordinarily remains closed and opens as a result of a pressure diiferential when liquid is withdrawn from the bottle by the pump.

Cap 28 is advantageously constructed to accommodate the meter pump 30. In this connection, the cover 44 cooperates with an essentially cylindrically shaped exten sion to provide a pump cylinder 52. This cylinder is provided with an integral closed end 54 and an open end 56 itself conveniently closed by means of a plug 58 having a-central bore 60 for receiving the piston rod of the meter pump 30. The cylinder 52 is provided with a centrally located nozzle 62 having a discharge port or opening 64 for metered amounts of liquid surgical soap. As will be appreciated, the axis of this port 64 is offset or somewhat eccentrically located with respect to the axis of the opening 46 and center of wall 42. If desirable or found necessary, a latching means may be incorporated into the dispenser 20 for purposes of preventing unintentional rotation of the cap 28' and bottle 22 relative tothe actuator assembly 34 and bracket mount 32.

Pump

The metering pump 30 serves to dispense regulated dosages of the liquid surgical soap; and, in this connection, operates to withdraw a metered amount of the liquid from the bottle 22 through the opening 46 and force or pump this metered dosage out through the port 64 of the nozzle 62. The cylinder 52 and ancillary structure form part of the pump which, additionally includes the piston 66 of hollow design by means of the provisions of the central coaxial bore 68. This bore communicates with four equally spaced slots 70 formed in the walls of the piston 66. The pump is, additionally, provided with a sliding ring valve 72 which serves to sequentially close and then open the intak port 46 and exhaust port 64. On the forward end of the piston 66 is formed a ring shoulder 74 whereas on the rear end of the piston a ringshoulder 76 is mounted for purposes of conveniently engaging the ring valve 72 according to the prescribed sequence of events and, in the case of the rear shoulder 76 to create a sealed junction with the inner cylindrical wall 78 of the cylinder 52. Accordingly, upon displacement of the piston 66, a variable pumping chamber 80 is, thus, provided. If desired, each of the shoulders 74 and 76, together with the ring valve 72, may be formed from a suitable rubber or resinous material either artificial or natural.

The rear of the piston 66 includes an integral or otherwise attached piston rod 82 having at its terminal end a radial projection which may assume the form of a radial flange 84 adapted to be coupled with operating surfaces of the actuator assembly 34 for automatic dispensing of the contents of the bottle 22.

With particular reference to FIGS. 6 through 9 showing the operation of the metering pump 30, it will, thus, be appreciated that in FIG. 6 the piston 66 is retracted. In this connection, the rear of the piston 66 as well as shoulder 76 is substantially proximate the plug 58. The pump chamber 30 will, in this instance, be filled with the liquid soap with slidable ring valve 72 closing the intake port 46. Ring 72, at this stage of the pumping cycle, will not close exhaust port 64. However, in the fully retracted position of the piston 66, the forward ring shoulder 74 will close olf the exhaust port 64.

As the piston 66 moves forwardly as typified by the disposition of parts in FIG. 7, shoulder 74- uncovers the exhaust port 64 and permits the liquid in the pumping chamber 80 to flow through the hollow center or bore 68 and through the slots 70 in the piston wall to exhaust port 64 and out through the nozzle 62.

At the end of its forward stroke, the piston 66 will assume the relative disposition illustrated or typified by FIG. 8. At this particular point, the ring shoulder 76 moves the ring valve 72 so that it now closes the exhaust port 64 and, at the same time, opens intake port 46. The ring shoulder 76 at the forwardmost stroke of the piston will cover the intake port 46, as shown in FIG. 8.

On the return stroke of the piston 66, as typified by FIG. 9, liquid is drawn from the reservoir or bottle 22 through the intake port 46 through the slots 70 in the piston wall and then through the hollow centralbore 68 of the piston and, ultimately, into the pump chamber 80.

At the end of the return stroke, as shown in FIG. 6, the ring shoulder 74 will shift the ring valve so that it now closes the intake port 4-6 and opens the exhaust port 64 which is temporarily closed by the forward ring shoulder 74. The device, under the circumstances, is ready for a new pumping cycle.

Bracket As previously explained, the bracket 24 is comprised basically of the mount for the bottle 22 and the actuator assembly 34 for the pump 30. The bracket may be conveniently mounted on a wall or a portable stand 26 which would include the standard 86 extending upwardly from the base 88. A foot pedal 90 will be suitably located adjacent the base and be coupled pneumatically with the actuator assembly 34- as, for example, by means of tubing 92. The bracket 24 is provided with an outer casing which includes a lower body 94 and a cover 96 secured to the body by means of a suitable number of screws 98.

The body 94 and the cover 96 cooperate in providing the mount for the bottle 22; and, in this regard, cooperate in defining the opening 100 adapted to accommodate the cap 29. The cover 96 is provided with a keyway or template 102 of a size and configuration adapted to receive the piston rod 82 and its radial flange or head 84 notwithstanding the particular disposition of these parts relative to the cap 28. A cam 104 is also included in order for the piston rod 82 and, particularly its radial flange 84 to be operatively associated with the actuator assembly 34 when the bottle is initially mounted on the bracket 24. Following the placement of the bottle in the bracket mount 32 with the piston rod and flange 84 inserted through the template 102, the bottle 22 with cap 28 is rotated approximately 90 to align the axis of the piston rod 82 with that of the actuator assembly 34. When this occurs, the radial flange 84 will cam against the cam 104 and be shifted radially outwardly no matter what its disposition is relative to the cap 23. Under these circumstances, the flange 84 will, ultimately, latch with the actuator assembly 34 in a manner to be described presently. To uncouple the flange 84 from the actuator assembly 34 for purposes of removing the bottle and cap, the bottle with cap need only be rotated in a reverse direction approximately 90 and then lifted from the bracket mount 32 with the piston rod 82 and radial flange 84 withdrawn through the template 102.

Actuator assembly The disclosed actuator assembly 34 may assume the form of that illustrated in which pneumatic pressure is utilized for purposes of actuating the piston rod 82. This pneumatic pressure is relayed through the previously described tube 92 from the foot operated pedal 91). The depression of this foot pedal results in the transmission of air pressure through the tube 92. For purposes of relaying this pressure to the piston rod of the metering pump 30, the actuator assembly is provided with a pneumatically actuated longitudinally shiftable piston 106 and concentrically attached resilient flexible diaphragm 108. The piston and diaphragm are attached to one another by means of the screw 110. The periphery of the diaphragm 108 is secured between the cylindrical body 112 and cap 114 secured thereon by means of a suitable number of screws 116. Thus, the diaphragm will cooperate with the cap to provide a pneumatic chamber 118 of variable capacity, the size of which will increase upon depression of the foot pedal 90.

The coupling of the bore of the tube 92 to the pneumatic chamber 118 is provided by an adaptor 120 secured to the cap 114 by means of the interengaging threads 122 of these parts. The associated end 124 of the tube 92 is disposed in a circular recess 126 in the outer end of adaptor 120 where an outer sleeve 128 is threadedly mounted to complete the securement of the tube and adaptor.

A hanger 130 is mounted interiorly and at the rear of the bracket 24 for purposes of coupling the bracket with a stand 86. This hanger has its base 132 disposed in a suitably formed recess 134 in the bracket base 94. The upper separated ends of the hanger 136 and 138 are anchored to raised inner projections of the base 94 by means of the screws 140. The side arms 142 and 144 of the hanger 130 are bent into essentially horizontal outwardly projecting hanger portions 146 and 148 which are mounted on projecting and cooperating lugs or similar devices of the stand 86.

The forward end of the piston 106 is secured to a rod 150 which, at its free end, is provided with a head 152. The rod 150 is mounted in and slidably disposed relative to the opening 154 defined by inwardly projecting surfaces of the body 94 and cover plate 156 suitably secured thereto by means of a number of screws 158. A compression spring 160 extends between the raised inner projection of the body 94 and plate 156 and piston 106 in telescoping relationship with respect to the rod 150 to urge the head 152 against the plate 156 and accompanying raised inner portions of the body 94. As will be appreciated, the bias of this spring is overcome upon the introduction of air pressure into the pneumatic chamber 118 through the bore of the tube 92 upon depression of the foot pedal 90. Under these circumstances, the diaphragm, together with the piston 106, will shift forwardly thereby moving the rod 150 in the same direction. Upon actuation of the diaphragm 108 and piston 106, the rod 150 will shift forwardly and move the piston rod 82 a corresponding and predetermined amount thus reducing the forward stroke of the piston 66. The extent of actuation will assure a metered dosage. The bias of the spring 160 will force the piston 66 through its retraction stroke in, respectively, extracting liquid soap from the pump chamber and Withdrawing the liquid therein.

The head 152 is provided with a recess 162 adapted to advantageously accommodate the radial flange 84 and adjacent surfaces of the rod 82. The flange 84 will latch with the head 152 when a fresh bottle 22 with cap 28 is dropped into the bracket mount 32 and shifted as previously explained. This latch relationship will be relieved upon reverse movement of the bottle 22 and the cap 28.

The pumping cycle will be repeated upon each depression of the foot pedal 90 with metered amounts of liquid soap being dispensed from the nozzle 62. When the contents of the bottle 22 are fully expended, the fresh bottle need only be substituted with the expended bottle discarded. Under these circumstances, it should be readily evident that the entire contents of a bottle 22 are usable without fear of bacterial contamination. Cleansing of the dispenser is no longer a major cost item in view of the disposable nature of the bottle 22 and cap 28. The simplicity of construction of the parts including the metering pump 30 and bracket 24 is conducive to relatively low cost construction techniques and minimization of individual item costs. This simplicity also contributes to ready use by the unskilled because of the absence of any requirement of particularly outstanding mechanical or technical aptitude in using the dispenser, or replace an expended bottle with a fresh supply of liquid soap. Above all, wastage of liquid soap is held at a bare minimum because of the metered amount of liquid dispensed with each forward stroke of the piston 66. The floating valve ring 72, together with piston design, contributes to the absence of dripping of liquid during use of standing of the dispenser. As explained in the above, the dispenser, together with its component parts including the disposable bottle With cap having a built-in metering pump, the metering pump itself and the bracket, both individually and collectively, in any combination, have application to fields other than dispensing of liquid surgical soap.

Thus, among others, the numerous aforenoted objects and advantages are most effectively attained. Although a single somewhat preferred embodiment of the invention has been disclosed and described in detail herein, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.

I claim: I

1. A capped receptacle comprising a receptacle body having an open end, a cap extending over the open end, said cap having Walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, and a slidable ring valve operatively associated with said piston and adapted to (3' be displaced thereby to close the intake port when said piston is in said second position and close said exhaust port when said piston is in said first position.

2. The invention in accordance with claim 1 wherein said intake port and exhaust port are eccentric to one another so that said ring valve closes one port when said piston is in said first and second positions.

3. A cap for a receptacle body, said cap having walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining With the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, and a slidable ring valve operatively associated with said piston and adapted to be displaced thereby to close the intake port when said piston is in said second position and close said exhaust port when said piston is in said first position.

4. The invention in accordance with claim 3 wherein said intake port and exhaust port are eccentric to one another so that said ring valve closes one port when said piston is in said first and second positions.

5. A piston pump comprising a pump cylinder having an intake port and an exhaust port, said cylinder being closed at least at one end thereof, a piston defining with the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, and a slidable ring valve operatively associated with said piston and adapted to be displaced thereby to close the intake port when said piston is in said second position and close said exhaust port when said piston is in said first position.

6. The invention in accordance with claim 5 wherein i said intake port and exhaust port are eccentric to one another so that said ring valve closes one port when said piston is in said first and second positions.

7. A bracket for coupling with a vertically disposed supporting surface comprising a bottle mounting means for a bottle having a piston pump incorporated into a cap covering the opening thereof, said bottle mounting means including a template for permitting passage therethrough of extending surfaces of the piston rod of the pump, a piston pump actuating mechanism forming part of said bracket for operating to actuate the pump, latching means for coupling the actuating mechanism with the piston rod of said pump, said actuator mechanism comprising a pneumatically shiftable diaphragm, and a piston secured to and shiftable with said diaphragm, and a rod extending from the piston, and such latter rod having surfaces at one end thereof cooperating to form with the piston rod said latching means.

8. A bracket for coupling with a vertically disposed supporting surface comprising a bottle mounting means for a bottle having a piston pump incorporated into a cap covering the opening thereof, said bottle mounting means including a template for permitting passage therethrough of extending surfaces of the piston rod of the pump, a piston pump actuating mechanism forming part of said bracket for operating to actuate the pump, and said actuator mechanism including means for latching with the end of the piston rod of said pump to permit the actuator mechanism to operate the pump.

9. A dispenser comprising a bracket for mounting a receptacle in an inverted position on a vertically disposed mounting surface, the bracket comprising a receptacle mounting means for said receptacle, a capped receptacle mounted by said bracket, said capped surgical soap receptacle comprising a receptacle body containing surgical soap and having an open end, a cap extending over the open end, said cap having Walls defining a piston pump cylinder and an intake port comunicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamber and being suitable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, said bottle mounting means including a template for permitting passage therethrough of extending surfaces of the piston rod of the pump, a piston pump actuating mechanism forming part of said bracket for operating to actuate the pump, latching means for coupling the actuating mechanism with the piston rod of said pump, and a foot pedal operating means being coupled with said actuator mechanism for causing the operation thereof in actuating the pump.

it). A dispenser comprising a bracket for mounting a receptacle in an inverted position on a vertically disposed mounting surface, the bracket comprising a receptacle mounting means for said receptacle, a capped receptacle mounted by said bracket, said capped surgical soap receptacle comprising a receptacle body containing surgical soap and having an open end, a cap extending over the open end, said cap having walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, said bottle mounting means including a template for permitting passage therethrough of extending surfaces of the piston rod of the pump, a

piston pump actuating mechanism forming part of saidbracket for operating to actuate the pump, latching means for coupling the actuating mechanism with the piston rod of said pump, said actuator mechanism comprising a pneumatically shiftable diaphragm, a piston secured to and shiftable with said diaphragm, a rod extending from such piston, said latter rod having surfaces at one end thereof cooperating to form with the piston rod said latching means.

11. A dispenser comprising a bracket for mounting a receptacle in an inverted position on a vertically disposed mounting surface, the bracket comprising a receptacle mounting means for said receptacle, a capped receptacle mounted by said bracket, said capped surgical soap receptacle comprising a receptacle body containing surgical soap and having an open end, a cap extending over the open end,- said cap having walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, said bottle mounting means including a template for permitting passage therethrough of extendingsurfaces of the piston rod of the pump, a piston pump actuating mechanism forming part of said bracket for operating to actuate the pump, said actuator mechanism including means for latching with the end of the piston rod of said pump to permit the actuator mechanism to operate the pump.

12. The invention in accordance with claim 8 wherein a camming means is interposed between said bottle mount and said actuator mechanism to engage the end of the rod of the piston of the pump and guide it into latching engagement with the latching means.

13. The invention in accordance with claim 12 wherein the template is substantially elongated in configuration and has a longitudinally extending axis and the actuator mechanism, together with its latching means, being disposed along a second longitudinal axis with said axes being at an angle with respect to one another whereby the bottle is adapted to be disposed in the bottle mount with the piston rod passing through said template and then turned to traverse said angle to permit said latching means to engage with the end of the rod of the piston of the pump.

14. A dispenser comprising a bracket for mounting a receptacle in an inverted position on a vertically disposed mounting surface, a capped receptacle mounted by said bracket, said capped receptacle comprising a receptacle body having an open end, a cap extending over the open end, said cap having Walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamber and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port, and a slidable ring valve operatively associated with said piston and adapted to be displaced thereby to close the intake port When said piston is in said second position and close said exhaust port when said piston is in said first position.

15. The invention in accordance with claim 14 wherein said intake port and exhaust port are eccentric to one another so that said ring valve closes only one port when said piston is in said first and second positions.

16. A dispenser comprising a bracket for mounting a receptacle in an inverted position on a vertically disposed mounting surface, a capped receptacle mounted by said bracket, said capped disposable receptacle comprising a plastic receptacle body having an open end, a plastic cap extending over the open end, said cap having walls defining a piston pump cylinder and an intake port communicating with the interior of both the body and cylinder and an exhaust port extending from the cylinder to the cap exterior, a piston defining with the cylinder a pumping chamher and being shiftable in said cylinder between a first position at which liquid is withdrawn into the pumping chamber from the body through the intake port and a second position at which the liquid in the pumping chamber is exhausted out through the exhaust port.

17. The invention in accordance with claim 11 wherein a camming means is interposed between said receptacle mounting means and said actuator mechanism to engage the end of the rod of the piston of the pump and guide it into latching engagement with the latching means.

18. The invention in accordance with claim 17 wherein the template is substantially elongated in configuration and has a longitudinally extending axis and the actuator mechanism, together with its latching means, being disposed along a second longitudinal axis with said aXes' being at an angle with respect to one another whereby the receptacle is adapted to be disposed in the bottle mount with the piston rod passing through said template and-then turned to traverse said angle to permit said latching means to engage with the end of the rod of the piston of the pump.

References (Iited by the Examiner UNITED STATES PATENTS 1,174,674 3/16 Byer 222-383 X 0 1,736,392 1 1/29 Coss et a1 222-179 X 1,949,345 2/34 Levernier 222l79 2,283,529 5/42 Bobrick 222-383 X 2,537,415 1/51 Loeb et al 222-34O 2,824,676 2/ 58 Hanlon 222340 X LOUIS I. DEMBO, Primary Examiner.

CHARLES R. CARTER, Examiner.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3897890 *Jan 10, 1974Aug 5, 1975Grace W R & CoAutomatic dispenser
US4165824 *Apr 25, 1977Aug 28, 1979Sud Mohinder PSelf cleaning shampoo dispenser
US4957218 *Jul 28, 1986Sep 18, 1990Ballard Medical ProductsFoamer and method
US5339988 *Oct 19, 1992Aug 23, 1994Ballard Medical ProductsDisposable tray sump foamer, assembly and methods
US5372281 *Oct 12, 1993Dec 13, 1994Ballard Medical ProductsDisposable tray sump foamer, assembly and methods
US5452823 *Aug 24, 1994Sep 26, 1995Ballard Medical ProductsDisposable tray sump foamer, assembly and methods
US5799841 *Jun 21, 1996Sep 1, 1998Minnesota Mining And Manufacturing CompanyDrip resistant nozzle for a dispenser
US5897031 *Jun 21, 1996Apr 27, 1999Minnesota Mining And Manufacturing CompanyDispenser for antimicrobial liquids
US7299951Mar 8, 2005Nov 27, 2007Ecolab Inc.Foot activated dispenser
US7753235Jul 13, 2010Ecolab Inc.Foot activated dispenser
US20060201973 *Mar 8, 2005Sep 14, 2006Ecolab Inc.Foot activated dispenser
USRE33564 *Dec 23, 1985Apr 2, 1991Ballard Medical ProductsFoam dispensing device
EP0904722A2May 20, 1997Mar 31, 1999Minnesota Mining And Manufacturing CompanyDispenser for antimicrobial liquids
WO1997048321A1 *May 20, 1997Dec 24, 1997Minnesota Mining And Manufacturing CompanyDispenser for antimicrobial liquids
WO2011130768A1 *Apr 21, 2011Oct 27, 2011Hans Georg HagleitnerStand for a liquid dispenser
Classifications
U.S. Classification222/179, 222/340, 222/383.1, 222/181.2
International ClassificationA47K5/00, A47K5/12
Cooperative ClassificationA47K5/1204
European ClassificationA47K5/12C1