Patent US3175802A successfully refreshed from Google Patents.
US3175802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Renewable seat ring
Assignee: Crane Co
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Filing: 1962-11-19
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Granted: 1965-03-30
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Kurt B Bredtschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:15
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A RENEWABLE SEAT RING ASSEMBLY FOR VALVES OR THE LIKE, THE COMBINATION OF A PORT VALVE BODY WITH AN ANNULAR RECESS WITHIN THE BODY PORT; A BODY SEAT RING NORMALLY POSITIONED IN SHOULDERED THE RELATION IN SAID ANNULAR RECESS, THE SEAT RING COMPRISING A PAIR OF TELESCOPICALLY ARRANGED RELATIVELY ROTATABLE ANNULAR MEMBERS RECEIVED WITHIN SAID BODY RECESS AND BEING JOINED BY INTERLOCKING THREADS THEREON TO EFFECT SAID SHOULDERED RELATION OF SAID BODY SEAT RING; THE INNER ONE OF SAID ANNULAR MEMBERS HAVING AN INTERMEDIATE ENLARGED PORTION DEFINING THE INNER END LIMIT OF THE INTERLOCKING THREADS; SAID BODY RECESS HAVING AN INTERMEDIATE ANNULAR GROOVE; SPLIT RING MEANS DISPOSED IN SAID INTERMEDIATE ANNULAR GROOVE OF THE SAID BODY RECESS WITH AN INNER PERIPHERAL PORTION OF SAID SPLIT RING MEANS PROJECTING INWARDLY WITHIN THE SAID BODY RECESS;
Claim 2
Dependent Claim
135 words
IN A RENEWABLE SEAT RING ASSEMBLY FOR VALVES OR THE LIKE, THE COMBINATION OF A PORT VALVE BODY WITH AN ANNULAR RECESS WITHIN THE BODY PORT; A BODY SEAT RING NORMALLY POSITIONED IN SHOULDERED THE RELATION IN SAID ANNULAR RECESS, THE SEAT RING COMPRISING A PAIR OF TELESCOPICALLY ARRANGED RELATIVELY ROTATABLE ANNULAR MEMBERS RECEIVED WITHIN SAID BODY RECESS AND BEING JOINED BY INTERLOCKING THREADS THEREON TO EFFECT SAID SHOULDERED RELATION OF SAID BODY SEAT RING; THE INNER ONE OF SAID ANNULAR MEMBERS HAVING AN INTERMEDIATE ENLARGED PORTION DEFINING THE INNER END LIMIT OF THE INTERLOCKING THREADS; SAID BODY RECESS HAVING AN INTERMEDIATE ANNULAR GROOVE; SPLIT RING MEANS DISPOSED IN SAID INTERMEDIATE ANNULAR GROOVE OF THE SAID BODY RECESS WITH AN INNER PERIPHERAL PORTION OF SAID SPLIT RING MEANS PROJECTING INWARDLY WITHIN THE SAID BODY RECESS;
References Cited (Backward Citations)
GB190218269A
Cited
US2330610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |