US3204655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc-stem connection for valves
Assignee: Crane Co
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Filing: 1963-02-20
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Granted: 1965-09-07
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kurt B Bredtschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:48
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/48; F16K1/482; F16B; F16B2200/00; F16B2200/69; F16B2200/73; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A VALVE CONSTRUCTION HAVING MEANS FOR RETAINING A SWIVELABLE RECIPROCABLY MOVABLE CLOSURE MEMBER TO A VALVE STEM; THE COMBINATION OF A CLOSURE MEMBER WITH AN ANNULAR TRANSVERSELY APERTURED WALLED PORTION FORMING A RECESS AND A BUTTON-HEAD STEM NORMALLY RECEIVED IN SAID RECESS; THE STEM BUTTON-HEAD HAVING A TRANSVERSE GROOVE DEFINING A STEM NECK PORTION; A PLURALITY OF RING SEGMENTS FITTED AROUND SAID STEM NECK PORTION; A PLURALITY OF RADIALLY EXTENDING PINS MOUNTED IN THE APERTURES OF SAID ANNULAR WALL PORTION OF THE CLOSURE AND ENGAGING APERTURED PORTIONS OF SAID RING SEGMENTS WITHIN THE STEM NECK PORTION; AND MEANS TO RETAIN SAID PINS IN ENGAGED POSITION.
Claim 2
Dependent Claim
106 words
IN A VALVE CONSTRUCTION HAVING MEANS FOR RETAINING A SWIVELABLE RECIPROCABLY MOVABLE CLOSURE MEMBER TO A VALVE STEM; THE COMBINATION OF A CLOSURE MEMBER WITH AN ANNULAR TRANSVERSELY APERTURED WALLED PORTION FORMING A RECESS AND A BUTTON-HEAD STEM NORMALLY RECEIVED IN SAID RECESS; THE STEM BUTTON-HEAD HAVING A TRANSVERSE GROOVE DEFINING A STEM NECK PORTION; A PLURALITY OF RING SEGMENTS FITTED AROUND SAID STEM NECK PORTION; A PLURALITY OF RADIALLY EXTENDING PINS MOUNTED IN THE APERTURES OF SAID ANNULAR WALL PORTION OF THE CLOSURE AND ENGAGING APERTURED PORTIONS OF SAID RING SEGMENTS WITHIN THE STEM NECK PORTION; AND MEANS TO RETAIN SAID PINS IN ENGAGED POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |