US3079124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve
Assignee: Henry Pratt Co LLC
•
Filing: 1959-12-23
•
Granted: 1963-02-26
•
Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Donald G Fawkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A ROTARY VALVE, COMPRISING: A HOUSING HAVING INLET AND OUTLET ON A CENTER LINE THERETHROUGH; A ROTOR WITHIN THE HOUSING CENTERED ON SAID CENTER LINE, SHAFT AND BEARINGS IN SAID HOUSING SUPPORTING SAID ROTOR ON SAID CENTER LINE AND FOR ROTATION THROUGH GENERALLY 90* ABOUT AN AXIS NORMAL TO AND INTERSECTING THE CENTER LINE; A CLOSURE MEMBER CARRIED BY THE ROTOR AND DESCRIBING A SPHERICAL SURFACE UPON MOVEMENT OF THE ROTOR; A VALVE SEAT ABOUT ONE OF SAID INLET AND OUTLET AND BEING A PORTION OF A CONICAL SURFACE CENTERED ON SAID HOUSING CENTER LINE AND TANGENT TO SAID SPHERICAL SURFACE, SAID CLOSURE MEMBER CARRYING A RESILIENT RING HAVING AN OUTER SURFACE LYING ON SAID SPHERICAL SURFACE AND MOVABLE ONTO SAID CONICAL SURFACE OF SAID VALVE SEAT TO CLOSE SAID VALVE.
Claim 2
Dependent Claim
131 words
A ROTARY VALVE, COMPRISING: A HOUSING HAVING INLET AND OUTLET ON A CENTER LINE THERETHROUGH; A ROTOR WITHIN THE HOUSING CENTERED ON SAID CENTER LINE, SHAFT AND BEARINGS IN SAID HOUSING SUPPORTING SAID ROTOR ON SAID CENTER LINE AND FOR ROTATION THROUGH GENERALLY 90* ABOUT AN AXIS NORMAL TO AND INTERSECTING THE CENTER LINE; A CLOSURE MEMBER CARRIED BY THE ROTOR AND DESCRIBING A SPHERICAL SURFACE UPON MOVEMENT OF THE ROTOR; A VALVE SEAT ABOUT ONE OF SAID INLET AND OUTLET AND BEING A PORTION OF A CONICAL SURFACE CENTERED ON SAID HOUSING CENTER LINE AND TANGENT TO SAID SPHERICAL SURFACE, SAID CLOSURE MEMBER CARRYING A RESILIENT RING HAVING AN OUTER SURFACE LYING ON SAID SPHERICAL SURFACE AND MOVABLE ONTO SAID CONICAL SURFACE OF SAID VALVE SEAT TO CLOSE SAID VALVE.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |