Patent US3157380A successfully refreshed from Google Patents.
US3157380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valves
Assignee: Individual
•
Filing: 1962-06-27
•
Granted: 1964-11-17
•
Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert B Sivyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
A BALL VALVE COMPRISING: A VALVE BODY HAVING END SURFACES ARRANGED FOR POSITIONING BETWEEN PIPE FLANGES, SAID END SURFACES HAVING OPENINGS TO A HOLLOW INTERIOR, DISC-LIKE, METAL SEALING, ANNULAR RINGS RECEIVED IN SAID OPENINGS, SAID RINGS BEING ADAPTED FOR RETENTION IN SAID OPENINGS BETWEEN SAID VALVE BODY AND PIPE FLANGES, SAID RINGS HAVING FACING SEALING SURFACES, A BALL MEMBER RECEIVED IN SAID HOLLOW INTERIOR, SAID BALL MEMBER HAVING A FULL OPENING PASSAGEWAY, MEANS COUPLED TO SAID BALL MEMBER FOR PROVIDING PIVOTAL MOVEMENT OF SAID BALL MEMBER IN SAID VALVE BODY BETWEEN AN OPEN POSITION WHERE SAID PASSAGEWAY IS IN FLUID COMMUNICATION WITH SAID BODY OPENINGS AND A CLOSED POSITION WHERE SAID PASSAGEWAY IS SEALED OFF FROM SAID BODY OPENINGS BY SEALING CONTACT BETWEEN SAID BALL MEMBER AND SAID SEALING SURFACES, SAID BALL MEMBER HAVING A SLOT IN ITS OUTER SURFACE EXTENDING IN THE SAME DIRECTION AS SAID PASSAGEWAY, SAID BALL MEMBER HAVING A SINGLE SLIT THEREIN EXTENDING BETWEEN SAID PASSAGEWAY AND SAID SLOT, CAM MEANS IN SAID VALVE BODY COOPERABLE WITH SAID SLOT AND SLITTED BALL MEMBER IN A CLOSED POSITION OF SAID BALL MEMBER TO SEPARATE SAID BALL MEMBER AT SAID SLIT AND THEREBY EXPAND SAID BALL MEMBER INTO SEALING CONTACT WITH SAID SEALING SURFACES, SAID CAM MEANS BEING DIAMETRICALLY POSITIONED RELATIVE TO SAID PIVOTAL MOVEMENT MEANS.
Claim 2
Dependent Claim
218 words
A BALL VALVE COMPRISING: A VALVE BODY HAVING END SURFACES ARRANGED FOR POSITIONING BETWEEN PIPE FLANGES, SAID END SURFACES HAVING OPENINGS TO A HOLLOW INTERIOR, DISC-LIKE, METAL SEALING, ANNULAR RINGS RECEIVED IN SAID OPENINGS, SAID RINGS BEING ADAPTED FOR RETENTION IN SAID OPENINGS BETWEEN SAID VALVE BODY AND PIPE FLANGES, SAID RINGS HAVING FACING SEALING SURFACES, A BALL MEMBER RECEIVED IN SAID HOLLOW INTERIOR, SAID BALL MEMBER HAVING A FULL OPENING PASSAGEWAY, MEANS COUPLED TO SAID BALL MEMBER FOR PROVIDING PIVOTAL MOVEMENT OF SAID BALL MEMBER IN SAID VALVE BODY BETWEEN AN OPEN POSITION WHERE SAID PASSAGEWAY IS IN FLUID COMMUNICATION WITH SAID BODY OPENINGS AND A CLOSED POSITION WHERE SAID PASSAGEWAY IS SEALED OFF FROM SAID BODY OPENINGS BY SEALING CONTACT BETWEEN SAID BALL MEMBER AND SAID SEALING SURFACES, SAID BALL MEMBER HAVING A SLOT IN ITS OUTER SURFACE EXTENDING IN THE SAME DIRECTION AS SAID PASSAGEWAY, SAID BALL MEMBER HAVING A SINGLE SLIT THEREIN EXTENDING BETWEEN SAID PASSAGEWAY AND SAID SLOT, CAM MEANS IN SAID VALVE BODY COOPERABLE WITH SAID SLOT AND SLITTED BALL MEMBER IN A CLOSED POSITION OF SAID BALL MEMBER TO SEPARATE SAID BALL MEMBER AT SAID SLIT AND THEREBY EXPAND SAID BALL MEMBER INTO SEALING CONTACT WITH SAID SEALING SURFACES, SAID CAM MEANS BEING DIAMETRICALLY POSITIONED RELATIVE TO SAID PIVOTAL MOVEMENT MEANS.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |