US3172639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate valve body construction
Assignee: M & J Engineering Co
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Filing: 1962-06-15
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Granted: 1965-03-09
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Marvin H Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:20
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K27/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A VALVE CONSTRUCTION, A VALVE BODY COMPRISING PLATE-LIKE END WALLS JOINED AT THEIR EDGES BY SIDE WALLS, A HUB ASSEMBLY COMPRISING TWO ALIGNED HUBS HAVING THEIR ADJACENT END PORTIONS FITTED INTO OPENINGS IN THE END WALLS, THE BODY HAVING PORTIONS EXTENDING FROM BOTH THE UPPER AND LOWER SIDES OF THE HUB ASSEMBLY, MEANS FORMING DIRECT TIE CONNECTIONS BETWEEN THE SIDE PORTIONS OF THE ALIGNED HUBS, AND ARTICULATED MEANS EMBRACING THE UPPER AND LOWER PORTIONS OF THE BODY AND FORMING CONNECTIONS BETWEEN UPPER AND LOWER PORTIONS OF THE ALIGNED HUBS AND THE UPPER AND LOWER EXTENDING PORTIONS OF THE BODY.
Claim 2
Dependent Claim
100 words
IN A VALVE CONSTRUCTION, A VALVE BODY COMPRISING PLATE-LIKE END WALLS JOINED AT THEIR EDGES BY SIDE WALLS, A HUB ASSEMBLY COMPRISING TWO ALIGNED HUBS HAVING THEIR ADJACENT END PORTIONS FITTED INTO OPENINGS IN THE END WALLS, THE BODY HAVING PORTIONS EXTENDING FROM BOTH THE UPPER AND LOWER SIDES OF THE HUB ASSEMBLY, MEANS FORMING DIRECT TIE CONNECTIONS BETWEEN THE SIDE PORTIONS OF THE ALIGNED HUBS, AND ARTICULATED MEANS EMBRACING THE UPPER AND LOWER PORTIONS OF THE BODY AND FORMING CONNECTIONS BETWEEN UPPER AND LOWER PORTIONS OF THE ALIGNED HUBS AND THE UPPER AND LOWER EXTENDING PORTIONS OF THE BODY.
References Cited (Backward Citations)
US2131053A
Cited
FR984464A
Cited
US3071342A
Cited
US2904306A
Cited
US3013770A
Cited
US2957492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |