Patent FR1378424A successfully refreshed from Google Patents.
Patent US3152718A successfully refreshed from Google Patents.
US3152718A
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US
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Cylinder boss
Assignee: Weatherhead Co
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Filing: 1962-03-08
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Granted: 1964-10-13
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Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert J Weatherhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:17
CPC Classifications
F; F17; F17C; F17C1/00; B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/058; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2205/0323; F17C2205/0329; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/224; F17C2209/23; F17C2209/234; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/0146; F17C2223/0153; F17C2260/00; F17C2260/01; F17C2260/012; F17C2260/013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
AN END STRUCTURE FOR A PRESSURIZED GAS CYLINDER COMPRISING A CONVEX END WALL AND AN INTEGRAL RAISED CENTRALLY POSITIONED CYLINDER BOSS FOR RECEIVING AN OUTLET VALVE AND A COVER, SAID CYLINDER BOSS INCLUDING A CYLINDRICAL OUTER WALL PROJECTING AXIALLY OUTWARD FROM SAID END WALL, SAID OUTER WALL BEING THREADED ON ITS OUTER SURFACE TO RECEIVE SAID COVER, A FLATTENED ANNULAR TOP EXTENDING RADIALLY INWARD FROM THE OUTER EDGE OF SAID CYLINDRICAL OUTER WALL, AND A CYLINDRICAL INNER WALL EXTENDING AXIALLY INWARD FROM THE RADIALLY INNER EDGE OF SAID TOP WALL AND THREADED TO RECEIVE AN OUTLET VALVE, SAID CYLINDER BOSS AND SAID END WALL BEING OF SUBSTANTIALLY UNIFORM WALL THICKNESS AND BEING DRAWN FROM AN INTEGRAL PIECE OF SHEET METAL, SAID CYLINDER BOSS WALLS HAVING A THICKNESS SUBSTANTIALLY GREATER THAN THE DEPTH OF THE THREADS ON THE THREADED PORTION SO THAT THE INNER SURFACES OF THE SAID BOSS WALLS ARE SMOOTH AND THE THREADS ON THE THREADED PORTIONS DO NOT SUBSTANTIALLY REDUCE THE BURSTING STRENGTH OF THE CYLINDER.
Claim 2
Dependent Claim
168 words
AN END STRUCTURE FOR A PRESSURIZED GAS CYLINDER COMPRISING A CONVEX END WALL AND AN INTEGRAL RAISED CENTRALLY POSITIONED CYLINDER BOSS FOR RECEIVING AN OUTLET VALVE AND A COVER, SAID CYLINDER BOSS INCLUDING A CYLINDRICAL OUTER WALL PROJECTING AXIALLY OUTWARD FROM SAID END WALL, SAID OUTER WALL BEING THREADED ON ITS OUTER SURFACE TO RECEIVE SAID COVER, A FLATTENED ANNULAR TOP EXTENDING RADIALLY INWARD FROM THE OUTER EDGE OF SAID CYLINDRICAL OUTER WALL, AND A CYLINDRICAL INNER WALL EXTENDING AXIALLY INWARD FROM THE RADIALLY INNER EDGE OF SAID TOP WALL AND THREADED TO RECEIVE AN OUTLET VALVE, SAID CYLINDER BOSS AND SAID END WALL BEING OF SUBSTANTIALLY UNIFORM WALL THICKNESS AND BEING DRAWN FROM AN INTEGRAL PIECE OF SHEET METAL, SAID CYLINDER BOSS WALLS HAVING A THICKNESS SUBSTANTIALLY GREATER THAN THE DEPTH OF THE THREADS ON THE THREADED PORTION SO THAT THE INNER SURFACES OF THE SAID BOSS WALLS ARE SMOOTH AND THE THREADS ON THE THREADED PORTIONS DO NOT SUBSTANTIALLY REDUCE THE BURSTING STRENGTH OF THE CYLINDER.
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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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |