US4008914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing devices
Assignee: Versapak International Ltd
•
Filing: 1974-08-29
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Granted: 1977-02-22
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Expires: 1994-08-29
Abstract
Abstract A sealing device for reusable envelopes in which a zip is held closed by a breakable plastic seal, the disposable, breakable part of the seal being broken by rotation of a coin in a slot provided.
Inventors
- 👤 Michael Denny Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:15
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/301; Y; Y10; Y10T; Y10T292/00; Y10T292/48; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5035; Y10T70/5049; Y10T70/5053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A sealing device comprising a disposable part and a part retainable for re-use, said disposable part comprising a head portion and a tail portion, said retainable part including an engageable portion, said tail portion being engageable in said engageable portion to close the seal while said head portion is exposed, said engageable portion and tail portion including cooperating means whereby, once engaged, they are retained together, said cooperating means comprising rotation preventing means for preventing rotation of said tail portion and resilient portions of said tail portion being resiliently deflectable in the same direction on engagement of said disposable part and said retained part, said resilient portion latching under a fixed portion of said retainable part to retain the seal closed, a coin slot means being provided on said head portion and a weakened stem portion interconnecting said head and tail portions so that rotation of said head by a coin engaging said slot causes said weakened stem portion to break to release the sealing device.
Claim 2
Dependent Claim
166 words
A sealing device comprising a disposable part and a part retainable for re-use, said disposable part comprising a head portion and a tail portion, said retainable part including an engageable portion, said tail portion being engageable in said engageable portion to close the seal while said head portion is exposed, said engageable portion and tail portion including cooperating means whereby, once engaged, they are retained together, said cooperating means comprising rotation preventing means for preventing rotation of said tail portion and resilient portions of said tail portion being resiliently deflectable in the same direction on engagement of said disposable part and said retained part, said resilient portion latching under a fixed portion of said retainable part to retain the seal closed, a coin slot means being provided on said head portion and a weakened stem portion interconnecting said head and tail portions so that rotation of said head by a coin engaging said slot causes said weakened stem portion to break to release the sealing device.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |