US3108780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for ultra-high vacuum apparatus
Assignee: Consolidated Vacuum Corp
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Filing: 1960-04-18
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Granted: 1963-10-29
•
Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Wishart James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:46
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K1/00; F16K1/32; F16K1/34; F16K51/00; F16K51/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CLOSURE MECHANISM COMPRISING A CYLINDRICAL WALL DEFINING A CHAMBER, A CLOSURE ELEMENT HAVING A CONICAL DISC MEMBER OF A HARDNESS GREATER THAN THAT OF SAID WALL AND BEING ADAPTED FOR FLEXING AXIALLY, SAID DISC MEMBER BEING FORMED WITH A CENTRALLY LOCATED CIRCULAR OPENING DEFINED BY AN INNER CIRCULAR EDGE, SAID DISC MEMBER BEING FORMED WITH AN OUTER PERIPHERAL CIRCULAR EDGE HAVING A DIAMETER SLIGHTLY SMALLER THAN THE DIAMETER OF THE WALL WHEN SAID DISC MEMBER IS UNFLEXED AND A DIAMETER SLIGHTLY GREATER THAN THE WALL WHEN SAID DISC MEMBER IS FLEXED AXIALLY, A HOLLOW CYLINDRICAL MEMBER SECURED ALL ALONG ONE END THEREOF TO THE INNER EDGE OF SAID DISC, AND MEANS
Claim 2
Dependent Claim
112 words
A CLOSURE MECHANISM COMPRISING A CYLINDRICAL WALL DEFINING A CHAMBER, A CLOSURE ELEMENT HAVING A CONICAL DISC MEMBER OF A HARDNESS GREATER THAN THAT OF SAID WALL AND BEING ADAPTED FOR FLEXING AXIALLY, SAID DISC MEMBER BEING FORMED WITH A CENTRALLY LOCATED CIRCULAR OPENING DEFINED BY AN INNER CIRCULAR EDGE, SAID DISC MEMBER BEING FORMED WITH AN OUTER PERIPHERAL CIRCULAR EDGE HAVING A DIAMETER SLIGHTLY SMALLER THAN THE DIAMETER OF THE WALL WHEN SAID DISC MEMBER IS UNFLEXED AND A DIAMETER SLIGHTLY GREATER THAN THE WALL WHEN SAID DISC MEMBER IS FLEXED AXIALLY, A HOLLOW CYLINDRICAL MEMBER SECURED ALL ALONG ONE END THEREOF TO THE INNER EDGE OF SAID DISC, AND MEANS
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |