Patent US3081901A successfully refreshed from Google Patents.
US3081901A
Expired / Lapsed
US
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Closure
Assignee: Adamson United Co
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Filing: 1961-11-14
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Granted: 1963-03-19
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Harry A Trishman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:08
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F16J13/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN AN AUTOCLAVE AND THE LIKE A PRESSURE VESSEL, A CLOSURE DOOR FOR THE VESSEL, INTERLOCKING BAYONET JOINT LUGS CARRIED ON THE DOOR AND CARRIED ON THE VESSEL, AND INTERENGAGING FACING PLATES SECURED TO THE LUGS, THE INTERENGAGING PORTIONS OF THE PLATES BEING FORMED AS THE SURFACES OF SQUARE SCREW THREADS HAVING A PITCH DIAMETER ABOUT EQUAL TO THE DIAMETER OF THE LUGS, A PITCH SUFFICIENT TO EFFECT A SEALING CLOSURE BETWEEN THE VESSEL AND DOOR UPON RELATIVE ROTATION OF THE LUGS A DISTANCE LESS THAN THE CIRCUMFERENTIAL LENGTH OF A LUG, AND WITH EACH INTERENGAGING PORTION OF THE PLATES FORMING A SEPARATE THREAD STARTING AT POINTS SPACED CIRCUMFERENTIALLY FROM EACH OTHER BUT LYING IN THE SAME PLANE AT RIGHT ANGLES TO THE AXIS OF THE DOOR.
Claim 2
Dependent Claim
127 words
IN AN AUTOCLAVE AND THE LIKE A PRESSURE VESSEL, A CLOSURE DOOR FOR THE VESSEL, INTERLOCKING BAYONET JOINT LUGS CARRIED ON THE DOOR AND CARRIED ON THE VESSEL, AND INTERENGAGING FACING PLATES SECURED TO THE LUGS, THE INTERENGAGING PORTIONS OF THE PLATES BEING FORMED AS THE SURFACES OF SQUARE SCREW THREADS HAVING A PITCH DIAMETER ABOUT EQUAL TO THE DIAMETER OF THE LUGS, A PITCH SUFFICIENT TO EFFECT A SEALING CLOSURE BETWEEN THE VESSEL AND DOOR UPON RELATIVE ROTATION OF THE LUGS A DISTANCE LESS THAN THE CIRCUMFERENTIAL LENGTH OF A LUG, AND WITH EACH INTERENGAGING PORTION OF THE PLATES FORMING A SEPARATE THREAD STARTING AT POINTS SPACED CIRCUMFERENTIALLY FROM EACH OTHER BUT LYING IN THE SAME PLANE AT RIGHT ANGLES TO THE AXIS OF THE DOOR.
References Cited (Backward Citations)
CH171712A
Cited
US2879914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |