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Publication numberUS2894660 A
Publication typeGrant
Publication dateJul 14, 1959
Filing dateMay 13, 1958
Priority dateMay 13, 1958
Publication numberUS 2894660 A, US 2894660A, US-A-2894660, US2894660 A, US2894660A
InventorsGordon Edward L
Original AssigneeGordon Edward L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dispenser cap
US 2894660 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

July 14, 1959 GORDQN 2,894,660

DISPENSER CAP Filed May 15, 1958 4 In I 4 I I A. 1 o v i l /7, I r, A? g INVENTOR. Ea/MRO L. GORDON Patented July 14, 1959 DISPENSER CAP Edward L. Gordon, Pittsburgh, Pa.

Application May 13, 1958, Serial No. 734,981 1 Claim. (Cl. 222-108) This invention relates to a cap for a dispenser receptacle and, in particular, a receptacle containing a supply of fluid material such as tool paste with a charge of propellant gas under pressure.

Many products such as tooth paste and the like are now being sold in cans containing in addition to the product, a charge of compressed gas, and fitted with a discharge valve act-uable by a disc adapted to be pressed by the users finger. The finger-pressed disc is part of a dispenser cap which is also provided with a discharge spout. A passage on the under side of the disc communicates with the spout and engages the valve stem through which the contents of the can are discharged when the stem is depressed.

Even though considerable care be exercised by the user of such a can, after discharging a proper amount of tooth paste on a brush, a drop or so of the contents will exude from the spout and, unless it is wiped off, will run down the side of the can. This creates a messy appearance and greatly detracts from the eye appeal of an otherwise attractive merchandise package. While the last drop of tooth paste may be removed from the spout by scrubbing the latter with the tooth brush, this is bygienically objectionable when the same can may be used by different persons, e.g., various members of the same family. I have invented a cap for a gas-pressure dispensing can which overcomes this difficulty and insures that any tooth paste left in the spout after a discharge operation will be drawn back from the end, thus preventing any dribbling and obviating the need for wiping the can or spout.

A complete understanding of the invention may be obtained from the following detailed description which refers to the accompanying drawing illustrating a present preferred embodiment. In the drawing,

Fig. 1 is a side elevation of a gas-pressure dispensing can;

Fig. 2 is a plan view thereof;

Fig. 3 is a sectional view of my improved cap taken along the plane of line III-HI of Fig. 2, showing the can in elevation and partly broken away; and

Fig. 4 is a view similar to Fig. 3 showing a modification.

Referring now in detail to the drawings, a can has a head closure incorporating a valve 11 the stem of which is indicated at 12. A cap 13 molded from a suitable material such as a synthetic plastic, has a ring wall which fits tightly over the head of the can. A spout 14 projects radially from the cap wall. The spout communicates with a passage 15 formed in the underside of a disc 16 molded integrally with the cap but attached thereto only in the vicinity of the spout, so it can easily be deflected by finger pressure. A valve-stem seat 17 is formed on the bottom of the disc and fits over stem 12 so that the contents of the can discharged through the stem when it is depressed, will flow into passage 15 and out through spout 14. The structure described so far is well known and forms no part of my invention.

The ring wall of cap 13 has a raised peripheral rim 18. A dome-shaped flexible resilient diaphragm 19 fits tightly in the rim so it will be deformed by the finger of the user when he applies pressure thereto, to depress disc 16 and open valve 11. As shown, disc 16 has a central hole therein by which the space under the diaphragm communicates with passage 15. The diaphragm is of such material, e.g., the plastic of which the cap is composed, that when finger pressure thereon is released, it will spring back to normal position and, in so doing, will create a suction or partial vacuum tending to withdraw the portion of the contents of the can left in the end of spout 14 after the completion of a dispensing operation. This prevents formation of a drop on the end of the spout which might run down the side of the cam unless wiped off, and detract from its appearance.

Fig. 4 illustrates a modification in which disc 16 is provided with a ring wall 20 and a flexible, resilient diaphragm 19' seated therein. As will be apparent, this diaphragm functions in the same manner as that shown at 19.

It will be apparent that the invention is simple and may readily be applied to conventional push-button" caps without much additional cost yet it eifectively removes the objectionable feature of such caps as heretofore pointed out. It is automatic in operation and requires no attention on the part of the user. The tight fit of the diaphragm in the rim of the cap serves the further purpose of excluding foreign matter from the space under disc 16.

I claim:

In a cap for a pressure can having a valved closure in its head and a valve stem projecting thereabove, said cap including a cylinder the lower end of which fits tightly over said head, a spout extending laterally from said cylinder and a deflectable disc mounted transversely in said cylinder having a passage therein communicating with said spout and a seat on its under side fitting over said stem and provided with an opening into said passage, the combination therewith of a dome-shaped, flexible, resilient diaphragm fitted in the top of said cylinder and overlying said disc, adapted to be deformed by finger pressure applied to deflect said disc, and a port in said disc communicating with said passage whereby the return of the diaphragm to normal condition, on release of finger pressure, exerts a suction tending to withdraw from the end of the spout any material remaining therein on release of said disc.

References Cited in the file of this patent UNITED STATES PATENTS 2,681,752 Jarrett et a1. June 22, 1954 2,735,590 Ayres Feb. 21, 1956 2,831,618 Softer et al. Apr. 22, 1958

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2681752 *Oct 9, 1950Jun 22, 1954Nat Dispenser CorpDispenser valve for containers for viscous fluids under pressure
US2735590 *Oct 2, 1952Feb 21, 1956 Combined closure and valve operating
US2831618 *Apr 12, 1956Apr 22, 1958Dev Res IncDispensing valve dischargeable in upright position
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3058626 *Jun 22, 1959Oct 16, 1962Hibbs George WCap for spray dispenser, or the like
US3185349 *Dec 26, 1961May 25, 1965Valve Corp Of AmericaAerosol dispenser and cap construction therefor
US3269614 *Jul 30, 1963Aug 30, 1966Henry Abplanalp RobertDispensing cap for an aerosol container
US3323692 *Oct 22, 1965Jun 6, 1967Pillsbury CoDrop dispensing container
US3785528 *Aug 21, 1972Jan 15, 1974Vca CorpAerosol dispensing device
US4978035 *Nov 21, 1989Dec 18, 1990L'orealNozzle for dispensing a product, in particular a foaming product
US5370284 *Mar 15, 1994Dec 6, 1994The Procter & Gamble CompanyToggle closure for a resiliently deformable container
US5732855 *Mar 4, 1996Mar 31, 1998Park Towers International B.V.Spray head intended for a spray can, and spray can provided with such a spray head
US5918777 *Feb 21, 1996Jul 6, 1999Owens-Brockway Plastic Products Inc.For a fluent product
US6041975 *Aug 27, 1998Mar 28, 2000Owens-Brockway Plastic Products Inc.Dispensing package for viscous liquid product
US6241128Dec 22, 1998Jun 5, 2001Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6264067Apr 28, 2000Jul 24, 2001L'oreal S.A.Dispensing member actuating device, assembly, and method
US6311878Jan 7, 2000Nov 6, 2001Owens-Brockway Plastics Products Inc.Dispensing package for fluent products
US6357625Jul 24, 2001Mar 19, 2002Owens-Brockway Plastics Products Inc.Dispensing packages for fluent products
US6394323Aug 24, 1999May 28, 2002Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6615473Apr 11, 2001Sep 9, 2003Owens-Brockway Plastic Products Inc.Method of making a container and closure
US6622895Mar 11, 2002Sep 23, 2003Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US6757957Jun 24, 2003Jul 6, 2004Owens-Brockway Plastic Products Inc.Dispenser package for fluent products and method of manufacture
US8006868Oct 18, 2007Aug 30, 2011Glaxosmithkline Consumer Healthcare Gmbh & Co KgDispenser cap for pressurised fluids
EP0370842A1 *Oct 18, 1989May 30, 1990L'orealAttachment for dispensing a product, especially a foaming product
EP1048590A1Mar 24, 2000Nov 2, 2000L'orealValve actuating device and assembly comprising such a device
Classifications
U.S. Classification222/108, 222/501, 222/402.13
International ClassificationB65D83/16
Cooperative ClassificationB65D83/205
European ClassificationB65D83/20C