Patent US4781288A successfully refreshed from Google Patents.
US4781288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed flat case
Assignee: Individual
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Filing: 1987-10-13
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Granted: 1988-11-01
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Expires: 2007-10-13
Abstract
Abstract There is disclosed a very compact flat case for carrying prophylactics, such as condoms and the like. The overall dimensions of the case are approximately the same as a large coin. The case has flat top and bottom members which are hinged together with concentric cylindrical walls which support a resilient seal such as an O-ring. One or both of the mating walls are inclined to insure that sealing pressure is applied to the O-ring. The case has a closure which has a pair of detent balls, one each of each of the top and bottom members. The detent balls seat in mating recesses in the opposite member.
Inventors
- 👤 George S. Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:04
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/005; A45; A45C; A45C11/00; A45C11/24; A45D; A45D40/00; A45D40/22
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
203 words
A sealed case for flat objects which comprises: a. a flat bottom having an upright circular wall with an inclined top edge, and a peripheral flat ledge with an annular groove extending about the exterior of said wall, above said ledge; b. a flat cover having a recessed central well with an inside diameter to closely conform about said upright circular wall when said cover is closed on said bottom, said recess being surrounded by a peripheral edge with an inside wall inclined at an angle from 10 to 45 degrees; c. hinge means comprising first and second hinge blocks on one end of said bottom and cover, respectively, with aligned through apertures and receiving a hinge pin for hinged interconnection of said bottom and cover at said one end thereof; d. closure means comprising first and second closure abutments opposing each other on each of said bottom and cover at their ends opposite said one end, a plurality of ball detents and cooperating receptacles for said ball detents located in stacked array on said closure means; and e. resilient seal means carried in said annular groove for compressive contact with the inclined inner wall of the recessed central well of said cover.
Claim 2
Dependent Claim
203 words
A sealed case for flat objects which comprises: a. a flat bottom having an upright circular wall with an inclined top edge, and a peripheral flat ledge with an annular groove extending about the exterior of said wall, above said ledge; b. a flat cover having a recessed central well with an inside diameter to closely conform about said upright circular wall when said cover is closed on said bottom, said recess being surrounded by a peripheral edge with an inside wall inclined at an angle from 10 to 45 degrees; c. hinge means comprising first and second hinge blocks on one end of said bottom and cover, respectively, with aligned through apertures and receiving a hinge pin for hinged interconnection of said bottom and cover at said one end thereof; d. closure means comprising first and second closure abutments opposing each other on each of said bottom and cover at their ends opposite said one end, a plurality of ball detents and cooperating receptacles for said ball detents located in stacked array on said closure means; and e. resilient seal means carried in said annular groove for compressive contact with the inclined inner wall of the recessed central well of said cover.
Claim 3
Dependent Claim
32 words
The sealed case of claim 1 wherein said hinge means includes a pair of hinge blocks laterally spaced apart on said cover and receiving a single hinge block of said bottom therebetween.
Claim 4
Dependent Claim
27 words
The sealed case of claim 1 wherein said closure abutments are integral extensions of their respective bottom and cover and meet along the midline of said case.
Claim 5
Dependent Claim
31 words
The sealed case of claim 3 wherein said each of said closure abutments has one detent ball received in a mounting bore with resilient means biasing it outwardly from said bore.
References Cited (Backward Citations)
US4289232A
Cited
US4569438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |