US3653779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc valve for applicator
Assignee: Individual
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Filing: 1970-03-30
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Granted: 1972-04-04
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Expires: 1990-03-30
Abstract
Abstract A fluid applicator comprising a retainer ring adapted to be seated in a container and having a peripheral flange which not only serves to hold a cover in place, but also maintains a disc valve assembly in a bowed convex position. The disc valve assembly engages the cover to normally hold the cover in a domelike shape and has a depending stem which extends through an opening in the retainer ring and a valve head below the retainer ring normally urged into engagement with the retainer ring for controlling fluid flow.
Inventors
- 👤 Gilbert Schwartzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/42; B65D47/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A fluid applicator comprising a retainer ring having a projecting portion, a cover secured to said ring, said ring having a opening therethrough, a circular flange surrounding said opening and extending toward said cover, a valve assembly including a disc disposed between said cover and said ring, said disc having a plurality of spaced bores therein, the diameter of said disc when in an unstressed condition being normally greater than the inside diameter of said flange, the peripheral edge of said disc engaging said flange with said disc engaging said ring and being stressed into an upwardly convex position having a convex face engaging said cover to bow said cover upwardly, said disc having at least one bore therethrough, a valve stem depending from and integral with said disc and extending through said opening, and a valve head on said stem and integral therewith, said valve head being below said ring and being engageable with said ring to close said opening for limiting fluid flow.
Claim 2
Dependent Claim
165 words
A fluid applicator comprising a retainer ring having a projecting portion, a cover secured to said ring, said ring having a opening therethrough, a circular flange surrounding said opening and extending toward said cover, a valve assembly including a disc disposed between said cover and said ring, said disc having a plurality of spaced bores therein, the diameter of said disc when in an unstressed condition being normally greater than the inside diameter of said flange, the peripheral edge of said disc engaging said flange with said disc engaging said ring and being stressed into an upwardly convex position having a convex face engaging said cover to bow said cover upwardly, said disc having at least one bore therethrough, a valve stem depending from and integral with said disc and extending through said opening, and a valve head on said stem and integral therewith, said valve head being below said ring and being engageable with said ring to close said opening for limiting fluid flow.
Claim 3
Dependent Claim
27 words
A fluid applicator according to claim 1, wherein said valve head includes a truncated conical portion flaring outwardly and downwardly, and a lower downwardly converging conical portion.
Claim 4
Dependent Claim
17 words
A fluid applicator according to claim 2, wherein said head and said stem have a recess therein.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |