US3217849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed and temperature controlled coupling device
Assignee: Schwitzer Corp
•
Filing: 1962-10-02
•
Granted: 1965-11-16
•
Expires: 1982-10-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:39
CPC Classifications
F; F16; F16D; F16D35/00; F16D35/02; F16D35/021; F16D35/026; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/042; F16D35/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A TORQUE TRANSMITTING FLUID COUPLING, THE COMBINATION OF A DRIVING ELEMENT AND A DRIVEN ELEMENT, A FLUID RETAINING HOUSING CONNECTED WITH ONE OF SAID ELEMENTS, SAID HOUSING HAVING WALLS DEFINING A FLUID CHAMBER HAVING A SUPPLY OF FLUID THEREIN, A ROTOR DISC CONNECTED WITH THE OTHER SAID ELEMENT HAVING SURFACES EXTENDING A CLOSE FACE TO FACE RELATION WITH THE WALLS OF SAID CHAMBER WHEREBY TORQUE WILL BE TRANSMITTED BETWEEN SAID ROTOR AND HOUSING THROUGH THE SHEAR ACTION OF THE FLUID, A FLUID RESERVOIR DEFINED BY SAID WALLS IN SAID HOUSING, ONE OF SAID WALLS HAVING A FIRST PORT LEADING TO SAID RESERVOIR FROM SAID CHAMBER AND A SECOND PORT DISPOSED RADIALLY INWARDLY OF SAID
Claim 2
Dependent Claim
115 words
IN A TORQUE TRANSMITTING FLUID COUPLING, THE COMBINATION OF A DRIVING ELEMENT AND A DRIVEN ELEMENT, A FLUID RETAINING HOUSING CONNECTED WITH ONE OF SAID ELEMENTS, SAID HOUSING HAVING WALLS DEFINING A FLUID CHAMBER HAVING A SUPPLY OF FLUID THEREIN, A ROTOR DISC CONNECTED WITH THE OTHER SAID ELEMENT HAVING SURFACES EXTENDING A CLOSE FACE TO FACE RELATION WITH THE WALLS OF SAID CHAMBER WHEREBY TORQUE WILL BE TRANSMITTED BETWEEN SAID ROTOR AND HOUSING THROUGH THE SHEAR ACTION OF THE FLUID, A FLUID RESERVOIR DEFINED BY SAID WALLS IN SAID HOUSING, ONE OF SAID WALLS HAVING A FIRST PORT LEADING TO SAID RESERVOIR FROM SAID CHAMBER AND A SECOND PORT DISPOSED RADIALLY INWARDLY OF SAID
References Cited (Backward Citations)
US2777303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |