Patent US3146988A successfully refreshed from Google Patents.
US3146988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat ring for ball valves
Assignee: Lunkenheimer Co
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Filing: 1961-09-08
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Granted: 1964-09-01
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Expires: 1981-09-08
Abstract
No abstract record available.
Inventors
- 👤 Earl F Riopelle
- 👤 Theodore B Booss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:21
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/208; F16K5/06; F16K5/0663; F16K5/0668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A VALVE COMPRISING A VALVE BODY HAVING A VALVE CHAMBER ACCESSIBLE FROM THE TOP OF SAID BODY AND INLET AND OUTLET PORTS DISPOSED AT OPPOSITE SIDES OF THE VALVE CHAMBER, SAID BODY HAVING AN ANNULAR RECESS SURROUNDING EACH OF SAID FLUID PORTS, A ROTATABLE BALL OF GENERALLY SPHEROID FORM DISPOSED WITHIN SAID VALVE CHAMBER, SAID ROTATABLE BALL HAVING A BORE FORMED THEREIN FOR REGISTRY WITH SAID INLET AND OUTLET PORTS IN THE OPEN POSITION OF THE VALVE, SAID ROTATABLE BALL HAVING PLANAR PARALLEL TOP AND BOTTOM SURFACES, THE IMPROVEMENT WHICH COMPRISES AN ELASTICALLY YIELDABLE SEAT RING DISPOSED WITHIN EACH OF SAID ANNULAR RECESSES, EACH OF SAID SEAT RINGS HAVING AN INNER BALL ENGAGING SURFACE DISPOSED WITHIN SAID VALVE CHAMBER, SAID BALL ENGAGING SURFACE COMPRISING TWO TRUNCATED CONICAL SURFACES INTERSECTING AT A CREST PROJECTING INWARDLY TOWARD THE ADJACENT SURFACE OF SAID BALL.
Claim 2
Dependent Claim
142 words
IN A VALVE COMPRISING A VALVE BODY HAVING A VALVE CHAMBER ACCESSIBLE FROM THE TOP OF SAID BODY AND INLET AND OUTLET PORTS DISPOSED AT OPPOSITE SIDES OF THE VALVE CHAMBER, SAID BODY HAVING AN ANNULAR RECESS SURROUNDING EACH OF SAID FLUID PORTS, A ROTATABLE BALL OF GENERALLY SPHEROID FORM DISPOSED WITHIN SAID VALVE CHAMBER, SAID ROTATABLE BALL HAVING A BORE FORMED THEREIN FOR REGISTRY WITH SAID INLET AND OUTLET PORTS IN THE OPEN POSITION OF THE VALVE, SAID ROTATABLE BALL HAVING PLANAR PARALLEL TOP AND BOTTOM SURFACES, THE IMPROVEMENT WHICH COMPRISES AN ELASTICALLY YIELDABLE SEAT RING DISPOSED WITHIN EACH OF SAID ANNULAR RECESSES, EACH OF SAID SEAT RINGS HAVING AN INNER BALL ENGAGING SURFACE DISPOSED WITHIN SAID VALVE CHAMBER, SAID BALL ENGAGING SURFACE COMPRISING TWO TRUNCATED CONICAL SURFACES INTERSECTING AT A CREST PROJECTING INWARDLY TOWARD THE ADJACENT SURFACE OF SAID BALL.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |