US3335997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve controlled by a thermal motor
Assignee: Thermal Hydraulics Inc
•
Filing: 1965-10-18
•
Granted: 1967-08-15
•
Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 John F Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/16; F; F16; F16K; F16K31/00; F16K31/02; F16K31/025; Y; Y10; Y10T; Y10T137/00; Y10T137/3367
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A VALVE CONTROLLED BY A THERMAL MOTOR COMPRISING (A) A VALVE HOUSING PROVIDED WITH INLET AND OUTLET OPENINGS, (B) A THERMAL MOTOR MOUNTED IN THE HOUSING BETWEEN SAID OPENINGS, SAID MOTOR COMPRISING A HIGH PRESSURE CASING, EXPANSIBLE MATERIAL AND A SHAFT IN THE CASING HAVING ONE END EXTENDING BEYOND THE CASING, (C) BEARING MEANS IN THE HOUSING ADJACENT THE INLET OPENING FOR BEARING ON THE SHAFT AND PREVENTING MOVEMENT OF THE SHAFT, (D) A VALVE SEAT ON THE MOTOR CASING MOVABLE WITH THE CASING FOR SEATING ON THE VALVE HOUSING AND CLOSING SAID INLET OPENING, (E) YIELDING MEANS URGING THE CASING AND VALVE SEAT INTO INLET CLOSING POSITION, (F) A HEATING ELEMENT IN THE HIGH PRESSURE CASING CAUSING EXPANSION OF THE MATERIAL IN THE CASING AND MOVEMENT IN AXIAL DIRECTION OF THE CASING, EXPANSIBLE MATERIAL AND HEATING ELEMENT RELATIVELY TO THE SHAFT TO MOVE THE CASING AND VALVE SEAT INTO INLET OPENING POSITION WHEN THE MATERIAL IS HEATED, AND (G) MEANS CONNECTING THE HEATING ELEMENT TO AN ELECTRICAL CURRENT SOURCE.
Claim 2
Dependent Claim
170 words
A VALVE CONTROLLED BY A THERMAL MOTOR COMPRISING (A) A VALVE HOUSING PROVIDED WITH INLET AND OUTLET OPENINGS, (B) A THERMAL MOTOR MOUNTED IN THE HOUSING BETWEEN SAID OPENINGS, SAID MOTOR COMPRISING A HIGH PRESSURE CASING, EXPANSIBLE MATERIAL AND A SHAFT IN THE CASING HAVING ONE END EXTENDING BEYOND THE CASING, (C) BEARING MEANS IN THE HOUSING ADJACENT THE INLET OPENING FOR BEARING ON THE SHAFT AND PREVENTING MOVEMENT OF THE SHAFT, (D) A VALVE SEAT ON THE MOTOR CASING MOVABLE WITH THE CASING FOR SEATING ON THE VALVE HOUSING AND CLOSING SAID INLET OPENING, (E) YIELDING MEANS URGING THE CASING AND VALVE SEAT INTO INLET CLOSING POSITION, (F) A HEATING ELEMENT IN THE HIGH PRESSURE CASING CAUSING EXPANSION OF THE MATERIAL IN THE CASING AND MOVEMENT IN AXIAL DIRECTION OF THE CASING, EXPANSIBLE MATERIAL AND HEATING ELEMENT RELATIVELY TO THE SHAFT TO MOVE THE CASING AND VALVE SEAT INTO INLET OPENING POSITION WHEN THE MATERIAL IS HEATED, AND (G) MEANS CONNECTING THE HEATING ELEMENT TO AN ELECTRICAL CURRENT SOURCE.
References Cited (Backward Citations)
US2419630A
Cited
US2484405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |