US3596808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container with venting gasket
Assignee: Diamond International Corp
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Filing: 1970-01-08
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Granted: 1971-08-03
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Expires: 1990-01-08
Abstract
Abstract A dispensing container in which a reciprocating dispensing pump extends into the container through its filling and dispensing opening. A combined gasket and diaphragm valve encircles and cooperates with the pump cylinder and has a flexible substantially elastic inner peripheral valving portion snugly encircling and sealing radially against the cylinder and an outer peripheral gasket portion which is compressed between the neck of the container and the supporting flange of the pump barrel. Air is admitted from the atmosphere between the pump-supporting flange and the gasket portion to a location above the valving portion while the lower surface of that portion is exposed to the internal pressure within the container. The valving portion is of downward converging frustoconical shape to admit air into the container while preventing the outflow of fluid from the container. The valving portion may seat against the pump cylinder either at a location beneath the air vent of the latter, thus to admit an inflow only of air through the vent and to prevent outflow therethrough or, if desired, the valving portion may seat around the pump cylinder at a location above the vent to avoid interference with the usual functions of the latter.
Inventors
- 👤 Douglas F Corsette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:28
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0037; B05B11/0039; B05B11/0044; B05B11/00442; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
109 words
In a dispensing container of the class in which a dispensing pump supported by the container has its pump cylinder extending into the container Through the dispensing opening thereof, in spaced relation to the container wall which defines said opening, the combination with said container of an annular diaphragm valve of resiliently flexible material secured to the container in sealing relation around said opening, said valve defining a circular valve port which normally snugly receives said cylinder in sealing relation therewith, the lower surface of said valve being exposed to the internal fluid pressure of the container and the upper surface of said valve being exposed to atmospheric pressure.
Claim 2
Dependent Claim
109 words
In a dispensing container of the class in which a dispensing pump supported by the container has its pump cylinder extending into the container Through the dispensing opening thereof, in spaced relation to the container wall which defines said opening, the combination with said container of an annular diaphragm valve of resiliently flexible material secured to the container in sealing relation around said opening, said valve defining a circular valve port which normally snugly receives said cylinder in sealing relation therewith, the lower surface of said valve being exposed to the internal fluid pressure of the container and the upper surface of said valve being exposed to atmospheric pressure.
Claim 3
Dependent Claim
34 words
The invention defined in claim 1 in which said cylinder is formed with an air vent and with a downward convergent frustoconical surface above said vent, said valve encircling and seating against frustoconical surface.
Claim 4
Dependent Claim
39 words
In a dispensing container as defined in claim 1, the further feature in accordance with which said valve is of elastomeric material and includes a valving portion immediately surrounding said port and diverging upward therefrom within the container opening.
Claim 5
Dependent Claim
44 words
The invention defined in claim 3 in which said cylinder is provided with an air vent through its sidewall to establish communication between its interior and said opening, said valve snugly receiving said cylinder in sealing engagement therewith at a location below said vent.
Claim 6
Dependent Claim
23 words
The invention defined in claim 3 in which said valve encircles and seats radially against the cylindrical exterior surface of said pump cylinder.
Claim 7
Dependent Claim
45 words
The invention defined in claim 3 in which said cylinder includes a supporting flange secured to the container over said opening, the outer peripheral portion of said valve being disposed between said flange and the container in sealing engagement with the container around the opening.
Claim 8
Dependent Claim
27 words
The invention defined in claim 6 in which the container, together with said cylinder and said valve, defined an air chamber between said flange and the valve.
Claim 9
Dependent Claim
37 words
The invention defined in claim 7 in which said valve is formed with a groove extending across its upper surface from said air chamber to its outer periphery to place said chamber in communication with the atmosphere.
Claim 10
Dependent Claim
36 words
The invention defined in claim 8 in which said container includes a closure cap secured over said opening and clamping said flange and said outer peripheral portion of the valve against each other and the container.
Claim 11
Dependent Claim
171 words
In a dispensing container having a neck defining a filling and dispensing opening and a closure secured over the open end of said neck, a reciprocating pump having a pump cylinder extending through said closure and said opening into the container interior in spaced relation to the neck, the pump having a plunger disposed for reciprocation in said cylinder through its upper exterior end, the combination therewith of an annular diaphragm valve having a portion of flexible elastomeric material surrounding said cylinder with the inner periphery of said valve normally snugly encircling and sealing against said cylinder within the said opening, said cylinder having a radial supporting flange near is upper end between said closure and the container neck, the outer peripheral portion of said valve being disposed between said supporting flange and the container neck in sealing engagement with the latter, said cylinder and valve defining an air chamber within the container opening between said flange and the valve, and means for admitting air from the atmosphere into said chamber.
Claim 12
Dependent Claim
171 words
In a dispensing container having a neck defining a filling and dispensing opening and a closure secured over the open end of said neck, a reciprocating pump having a pump cylinder extending through said closure and said opening into the container interior in spaced relation to the neck, the pump having a plunger disposed for reciprocation in said cylinder through its upper exterior end, the combination therewith of an annular diaphragm valve having a portion of flexible elastomeric material surrounding said cylinder with the inner periphery of said valve normally snugly encircling and sealing against said cylinder within the said opening, said cylinder having a radial supporting flange near is upper end between said closure and the container neck, the outer peripheral portion of said valve being disposed between said supporting flange and the container neck in sealing engagement with the latter, said cylinder and valve defining an air chamber within the container opening between said flange and the valve, and means for admitting air from the atmosphere into said chamber.
Claim 13
Dependent Claim
56 words
The invention defined in claim 10 in which said valve is formed in its upper surface with a groove extending from said air chamber to the outer periphery of the valve, said closure including a skirt encircling said neck, said neck and said closure being mutually conformed to establish communication between said groove and the atmosphere.
Claim 14
Dependent Claim
26 words
The invention defined in claim 11 in which said cylinder is formed with an air vent establishing communication between its interior and the said air chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |