Patent US4168788A successfully refreshed from Google Patents.
US4168788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure cap and dispenser body assembly
Assignee: AFA Products Inc
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Filing: 1978-07-12
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Granted: 1979-09-25
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Expires: 1998-07-12
Abstract
Abstract A dispenser body and a closure cap assembly for a container is presented which provides not only a closure for the container, except for communication with the dispenser, but also provides an air inlet operable upon the withdrawal or expulsion of the contents of the container so that air will be replenished therein to restore normal air pressure. The air inlet closes automatically when this has been accomplished to prevent leakage of the contents of the container.
Inventors
- 👤 David R. Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:38
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0037; B05B11/0039; B05B11/0044; B05B11/00442
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A closure cap for the outlet of a fluid container associated with the body of a dispenser wherein the cap and the body are permanently retained together as an assembly, means on said cap permitting its attachment to the container, means adapted to seal the outlet of the container when the cap is attached to the container, valve means on said cap and seating upon said body to permit fluid flow into but not out of the container with said valve means in communication with the container's interior and the outside air, and said valve means responsive to sub-atmospheric air pressure within the container to admit atmospheric air into the container.
Claim 2
Dependent Claim
111 words
A closure cap for the outlet of a fluid container associated with the body of a dispenser wherein the cap and the body are permanently retained together as an assembly, means on said cap permitting its attachment to the container, means adapted to seal the outlet of the container when the cap is attached to the container, valve means on said cap and seating upon said body to permit fluid flow into but not out of the container with said valve means in communication with the container's interior and the outside air, and said valve means responsive to sub-atmospheric air pressure within the container to admit atmospheric air into the container.
Claim 3
Dependent Claim
25 words
The invention set forth in claim 1 with the valve means comprising an annular lip seal attached to the cap and bearing against the body.
Claim 4
Dependent Claim
28 words
The invention set forth in claim 2 with the lip seal attached to an extension of the cap and bearing upon an outwardly extended flange on the body.
Claim 5
Dependent Claim
25 words
The invention set forth in claim 3 with the flange having a substantially smooth and flat bearing surface where the lip seal bears upon it.
Claim 6
Dependent Claim
17 words
The invention set forth in claim 3 with the extension of the cap integral with the cap.
Claim 7
Dependent Claim
15 words
The invention set forth in claim 3 with the lip seal integral with the cap.
Claim 8
Dependent Claim
18 words
The invention set forth in claim 6 with both the lip seal and extension integral with the cap.
Claim 9
Dependent Claim
21 words
The invention set forth in claim 3 with the lip seal extended from and integral with the extension of the cap.
Claim 10
Dependent Claim
24 words
The invention set forth in claim 3 with the space between the cap and the flange predetermined upon assembly of the cap and body.
Claim 11
Dependent Claim
15 words
The invention set forth in claim 2 with the lip seal slanted toward the body.
Claim 12
Dependent Claim
25 words
The invention set forth in claim 2 with the lip seal slanted toward the body and deflected by the body where it bears upon it.
Claim 13
Dependent Claim
13 words
The invention set forth in claim 1 with the dispenser comprising a sprayer.
References Cited (Backward Citations)
US3520452A
Cited
US3685739A
Cited
US3753518A
Cited
US3780951A
Cited
US3897006A
Cited
US4088248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |