Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2685989 A
Publication typeGrant
Publication dateAug 10, 1954
Filing dateJun 16, 1950
Priority dateJun 16, 1950
Publication numberUS 2685989 A, US 2685989A, US-A-2685989, US2685989 A, US2685989A
InventorsSamuels Abe O
Original AssigneeMaryland Devices Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pressure dispensing valve actuator
US 2685989 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Aug. 10, 1954 A. o. SAMUELS PRESSURE DISPENSING VALVE ACTUATOR Filed June 16, 1950 FIG.

FIG. 3

FIG. 4

S. L 2 *m 2 W6 m m ,T a M P. Y 4B -top of the cover member.

Patented Aug. 10, 1954 PRESSURE DISPENSING VALVE ACTUATOR Abe 0. Samuels, Bridgeport, Conn., assignoly'by mesne assignments, to Maryland Devices. Inc., Baltimore, Md., a corporation of Maryland Application June 16, 1950, Serial No. 168,460

6 Claims.

erable by the application of pressure to the top of a portion of the discharge valve which extends above the upper end of the pressure-tight container. The discharge valves are normally very small, at least when compared with the size of a normal users finger, and because of this, the force required to open the valve against the pressure of the spring as well as against the pressure of the contents of the container is a very fatiguing one to assert either continuously or intermittently for a long period of time. Additionally, the discharge valve, because of the characteristics above set forth, cannot normally be easily controlled to discharge the container contents evenly or at various uniform rates. That is, it is very difiicult to maintain the discharge valve open at any but its wide-open position.

My invention contemplates the provision of an attachment which may be secured over the discharge valve of a self-dispensing pressure-tight container to remove the aspect of fatigue from the operation of the discharge valve and which permits a fine control of the valve at any position between fully closed and fully opened positions. To this end, it comprises simply a cover member adapted to be removably secured to the container over the discharge valve, and a trigger, the major portion of which is freely supported within the cover member and has one end extending through an opening in the cover member so that it may be engaged by the users finger. With the attachment in place on a container, the inner end of the trigger is advantageously freely supported by an immovable part of the discharge valve or of the container and extends across the top of the discharge valve. The inner end of the trigger is prevented from moving upwardly by engaging the rim of the discharge valve supporting member of the container or by being in close proximity to the inner face of the The opening in the cover member through which the other end of the trigger extends is sufficiently large to permit movement of that end of the trigger and, when it is moved downwardly, pressure is applied to the top of the discharge valve because, as stated, the inner end of the trigger cannot move upwardly. Thus, the discharge valve is opened and the contents of the container are discharged. It is the extent to which the outer end of the trigger is depressed by the users finger which determines the extent to which the discharge valve is opened and thereby the rate at which the container contents are discharged. The leverage provided by the trigger makes the operation of the discharge valve fairly easy, requiring less pressure from the users finger and thereby making the operation less fatiguing. This leverage also permits finer control of the valve.

Some means or other is provided to prevent the trigger from sliding longitudinally in the opening in the cover when the cover is secured to the container, this means being, most advantageously, a downwardly extending lip punched or stamped out of the trigger to prevent sliding of the trigger by engaging the lower edge of the opening in the cover member through which the trigger extends.

Two forms of attachment, which come within the scope of my invention, will be more specifically described in conjunction with the accompanying drawing in which:

Fig. 1 is a plan view, partly broken away, of the preferred form of my novel attachment mounted on a pressure-tight container which is provided with a discharge valve,

Fig. 2 is an elevational view, in section, taken along line 2-2 of Fig. 1,

Fig. 3 is a perspective view of the preferred form of trigger, and

Fig. 4 is a fragmentary elevation, in section, of an attachment including a modified form of trigger.

By reference to the drawings, one type of pressure-tight container with which the valve-actuating trigger mechanism may be suitably and advantageously used comprises a side-wall ill, a top wall i l terminating in an upwardly extending curved flange i2, and a discharge valve supporting member or container top I3. Member I3 is provided with a curved peripheral flange or rim hi. adapted to interengage flange 12 of the container top to seal the container closed. The flange or rim M has an underlying portion M. A discharge valve [5 of the type disclosed and claimed in my copending application Serial No. 161,835, filed on May 13, 1950, is mounted in an opening it in member l3. A portion of this valve extends above the container and terminates in an inturned peripheral flange H which secures a flexible diaphragm [8 across the top of the valve and over a valve actuating member or button (notshown) by which the valve mechanism (not shown), contained within the valve, may be operated. A siphon tube !9 is connected to a portion or" the discharge valve which lies within the container and extends downwardly toward the bottom of the container so that all the contents thereof may be discharged. The discharge valve also includes a discharge nozzle through which the contents of the can are discharged when the discharge valve is operated by depression of the flexible diaphragm l8.

My valve-actuating trigger attachment comprises a dome-shaped cover member 22 having a downwardly extending curved peripheral flange 23 which fits tightly about interengaging flanges l2 and It of the container to removably secure it to the container. her 2% is depressed and contains an opening 25 which is so located that nozzle 26 of the discharge valve may discharge through it. The upper part 28 of this depressed portion 2a of the cover member lies close to the wall of theupper part of the discharge valve just above the nozzle. Diametrically opposite depressed portion 24. is a second depressed portion 2? of the cover member at the upper part of which is formed an opening 28.

A trigger 38 is freely mounted within the cover member and has one end 3| extending outside of the cover member through opening 28 therein, thereby being adapted to be engaged by a users finger. The inner or other end of the trigger is bifurcated to form two downwardly extending arms 32 the lower ends of which are adapted to engage the underlying portion it or rim i i of the container top on opposite sides of depressed portion 2a of the cover member. Longitudinal movement of the trigger into the cover is prevented by a curved part 34 or the trigger between the main body of the trigger and finger engaging end 3i thereof. This curved portion engages the upper edge 35 of opening 28 in the cover member. To prevent removal of the trigger through the opening 23 or substantial longitudinal movement of the trigger in that direction whereby the arms 32 might become disengaged from the underlying portion 1 a portion 35 of the trigger is bent downwardly and is sufficiently long to extend below the lower edge of opening 28, even when the trigger is in its uppermost position.

As will have already been surmised the trigger extends diametrically across the top of the discharge valve and, therefore, across flexible diaphragm it. It is provided with a depressed portion 3'! intermediate its ends which engages diaphragm i8. Upon depression of the finger engaging end 3! of the trigger, the trigger pivots downwardly about the vertically confined inner arms 32 thereof, depressing the valve actuating member or button (not shown) through flexible diaphragm 8 to open the discharge valve and permit the discharge or" the container contents through nozzle 28. Because of the leverage involved, operation of the attachment is relatively easy and non-fatiguing and therefore it is a simple matter to operate the discharge valve and any degree of opening of the valve may be easily and readily accomplished. When the finger engaging end of the trigger is released, the trigger is moved upwardly by the diaphragm and valveactuating member of the discharge valve under 1 the urging of a spring (not shown) incorporated A portion of the cover memin the valve mechanism and under the pressure of the container contents.

The modified form of trigger 38 disclosed in Fig. 4 is in most respects similar to that shown in Figs. 1-3. The main difference in it is that it is provided at its inner end with a reverse transverse bend 38 the lower end of which engages flan e 2'! of the discharge valve and the upper end of which lies in close proximity or in engagement with the cover member. Because part 26 of the depressed portion of the cover lies in close proximity to the wall of the discharge valve the inner end 39 of the trigger is fairly well confined and is prevented from slipping ofi the flange of the discharge valve.

The operation of the attachment of Fig. l is the same as that of the preferred form except that the inner end 39 of this trigger is vertically confined by the cover member rather than by rim i l of container top l3 as was the previously described form.

Either valve-actuating trigger attachment, as will be apparent from the above description, may be inexpensively manufactured as both of its parts, namely, the cover member and the trigger may be formed by simple stamping operations. By suitable modifications in the shape of the cover member, and if necessary in the shape of the trigger, an attachment may be made for any type of pressure-tight container having a discharge valve, a portion of which extends above the container and which is adapted to be operated by the application of pressure to its top.

I claim:

1. A valve-actuating trigger attachment for a pressure-tight container provided with a selfcontained discharge valve, the upper portion of which extends above the top of the container, the discharge valve being or a type which is opened by the application of pressure to its top and discharges through a discharge nozzle, comprising a cover member adapted to be removably secured to the top of the container over the discharge valve and having an opening therein through which the nozzle may discharge, and a trigger freely mounted within the cover member and adapted when the attachment is in place on a container to extend across and normally in contact with the top of the discharge valve, one end of the trigger extending through a second opening in the cover member whereby the trigger may be engaged by a users finger and moved to valve opening position, the inner end of the trigger being adapted to rest, when the attachment is secured to the top of a container, beneath an immovable rim on the top of the container and surrounding the discharge valve, and the inner end of the trigger being prevented by said rim of the container top from moving a substantial distance in a vertical direction.

2. A valve-actuating trigger attachment for a pressure-tight container provided with a selfcontained discharge valve the upper portion of which extends above the top of the container, the discharge valve being of a type which is opened by the application of pressure to its top and discharges through a discharge nozzle, comprising a cover member adapted to be removably secured to the top of the container over the discharge valve and having an opening therein through which the nozzle may discharge, and a trigger freely mounted within the cover member and adapted when the attachment is in place on a container to extend across and normally in contact with the top of the discharge valve, one

end of the trigger extending through a second opening in the cover member whereby the trigger may be engaged by a user's finger and moved to valve opening position, the inner end of the trigger being bifurcated and the arms of the bifurcated end lying one on either side of the discharge nozzle and having their lower ends engageable with an underlying portion of a rim on the top of the container.

3. A valve-actuating trigger attachment for a pressure-tight container provided with a selfcontained discharge valve the upper portion of which extends above the top of the container, the discharge valve being of a type which may be opened by the application of manual pressure directly to its top and discharges through a discharge nozzle, consisting of a cover member removably securable by a tight fit to the top of the container over the discharge valve and having an opening therein through which the nozzle may discharge, a trigger freely supported within the cover member and adapted when the attachment is in place on a container to extend across and normally in contact with the top of the discharge valve and to be movable thereagainst to open the valve, one end of the trigger extending through a second opening in the cover member whereby the trigger may be engaged by a user's finger and moved to valve opening position.

4. A valve-actuating trigger attachment according to claim 3 in which a portion of the trigger within the cover is bent downwardly from the remainder thereof to prevent removal of the trigger through the opening in the cover member through which said one end of the trigger extends.

5. A valve-actuating trigger attachment according to claim 3 in which the inner end of the trigger is adapted to rest, when the attachment is secured to the top of a container, upon a portion of the discharge valve of the container which is immovable and in which said inner end of the trigger is prevented by the inner face thereover of the cover member from moving a substantial distance in a vertical direction.

6. A valve-actuating trigger attachment according to claim 3 in which the cover member is dome-shaped and in which said cover has a first depression therein surrounding said opening through which the nozzle may discharge and a second depression therein surrounding said open ing through which said trigger extends.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 710,674 Fassmann Oct. 7, 1902 2,330,176 Kahn Sept. 21, 1943 2,376,404 Thoms May 22, 1945 2,471,460 Stroop May 31, 1949 2,577,245 Tuttle et a1. Dec. 4, 1951

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US710674 *Aug 5, 1901Oct 7, 1902Firm Of A MartincovicsSiphon-head for soda-water bottles or the like.
US2330176 *Mar 12, 1940Sep 21, 1943Kahn Julian SDispenser
US2376404 *Feb 28, 1942May 22, 1945Thoms Charles DValved container
US2471460 *Dec 6, 1944May 31, 1949Specialties Dev CorpFire extinguisher
US2577245 *Nov 2, 1949Dec 4, 1951Tuttle WainwrightShielded operator assembly for valved nozzles
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2772819 *Apr 27, 1955Dec 4, 1956Avoset CompanyLever type dispenser system for pressurized containers
US2806638 *Aug 12, 1954Sep 17, 1957Z And W Machine Products IncRelease valve for pressurized containers
US2811289 *Oct 11, 1955Oct 29, 1957Whitmire Res Lab IncAerosol bomb valve and guard
US2841443 *Jan 21, 1954Jul 1, 1958Seaquist Nels WValve actuator cap
US2869571 *Jan 2, 1957Jan 20, 1959Hoover Ball & Bearing CoBall cock
US3035605 *Dec 18, 1958May 22, 1962Fred NinneltProtecting, actuating, and sealing devices for valves in receptacles for gaseous media and the like
US3045930 *Jul 14, 1961Jul 24, 1962Rudd Sr Hilton AAir hose nozzle attachment
US3066838 *Oct 28, 1960Dec 4, 1962American Cyanamid CoValve operating lever for pressurized dispensers
US3081906 *Apr 1, 1959Mar 19, 1963Continental Can CoContainer
US3107823 *Nov 3, 1958Oct 22, 1963Precision Valve CorpProtector for dispenser caps
US3137414 *Jun 14, 1962Jun 16, 1964Eastern Cap And Closure CompanAerosol can assembly and the activator cap for completely dispensing the contents
US3149761 *Sep 18, 1962Sep 22, 1964Johnson & Son Inc S CValve actuating assembly for pressurized containers
US3429484 *Sep 7, 1967Feb 25, 1969Baldwin Eugene RAerosol spray head actuator
US4142650 *Aug 17, 1977Mar 6, 1979Almouli Albert AAerosol dispenser particularly useful as a pocket fire extinguisher
US4479592 *Aug 10, 1983Oct 30, 1984Blendax-Werke R. Schneider Gmbh & Co.Dispenser
US4752020 *May 7, 1986Jun 21, 1988Franz GrueterPressurized dispensing container
US5431313 *Sep 1, 1994Jul 11, 1995L'orealFluid dispensing device with push-button actuator
US6299032 *Nov 27, 2000Oct 9, 2001George W. HamiltonDisposable actuator with cap opener for aerosol cans
EP0575213A1 *Jun 1, 1993Dec 22, 1993L'orealDispensing device for liquid product
Classifications
U.S. Classification222/402.13, 222/402.15, 220/203.7, 251/237, 239/580, 222/509, 251/231, 239/573
International ClassificationB65D83/16
Cooperative ClassificationB65D83/206
European ClassificationB65D83/20C2