US3083945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable sealing construction for valves
Assignee: Shafer Valve Co
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Filing: 1960-04-27
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Granted: 1963-04-02
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Homer J Shafer
- 👤 George T Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673; F16K27/00; F16K27/10; F16K27/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
SEALING CONSTRUCTION FOR A VALVE HAVING A BODY AND A VALVE ELEMENT MOVABLE THEREIN TO OPEN AND CLOSED POSITIONS, SAID BODY HAVING AN ANNULAR GROOVE OPENING TOWARD ONE SIDE OF SAID VALVE ELEMENT, A RETAINING RING MOVABLE AXIALLY IN SAID GROOVE INTO CONFORMING ABUTMENT WITH SAID VALVE ELEMENT, A SEATING RING ABUTTING THE RADIALLY INNER SURFACE OF SAID RETAINING RING AND MOVABLE AXIALLY INTO CONFORMING ABUTMENT WITH SAID VALVE ELEMENT, SAID RINGS FORMING AN ANNULAR ENCLOSURE SUBSTANTIALLY RECTANGULAR IN CROSS SECTION WITH ONE CORNER OPEN AT THE SURFACE OF SAID VALVE ELEMENT, A RESILIENT SEALING RING IN SAID ENCLOSURE ABUTTING SAID VALVE ELEMENT AT SAID CORNER, AND A RADIALLY CONTRACTIBLE REMOVABLE RING IN SAID GROOVE FOR HOLDING SAID RETAINING AND SEATING RINGS AGAINST SAID VALVE ELEMENT.
Claim 2
Dependent Claim
126 words
SEALING CONSTRUCTION FOR A VALVE HAVING A BODY AND A VALVE ELEMENT MOVABLE THEREIN TO OPEN AND CLOSED POSITIONS, SAID BODY HAVING AN ANNULAR GROOVE OPENING TOWARD ONE SIDE OF SAID VALVE ELEMENT, A RETAINING RING MOVABLE AXIALLY IN SAID GROOVE INTO CONFORMING ABUTMENT WITH SAID VALVE ELEMENT, A SEATING RING ABUTTING THE RADIALLY INNER SURFACE OF SAID RETAINING RING AND MOVABLE AXIALLY INTO CONFORMING ABUTMENT WITH SAID VALVE ELEMENT, SAID RINGS FORMING AN ANNULAR ENCLOSURE SUBSTANTIALLY RECTANGULAR IN CROSS SECTION WITH ONE CORNER OPEN AT THE SURFACE OF SAID VALVE ELEMENT, A RESILIENT SEALING RING IN SAID ENCLOSURE ABUTTING SAID VALVE ELEMENT AT SAID CORNER, AND A RADIALLY CONTRACTIBLE REMOVABLE RING IN SAID GROOVE FOR HOLDING SAID RETAINING AND SEATING RINGS AGAINST SAID VALVE ELEMENT.
References Cited (Backward Citations)
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |