US3351167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat safety control for air actuated clutches
Assignee: Wichita Clutch Co
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Filing: 1965-08-09
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Granted: 1967-11-07
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Jack W Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:52
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN COMBINATION WITH A CLUTCH HOUSING; A FLUID ACTUATED CLUTCH, HAVING FRICTION MEMBERS THEREIN, WITHIN SAID CLUTCH HOUSING, A CONDUIT LEADING FROM A SOURCE OF FLUID PRESSURE SUPPLY TO SAID FLUID ACTUATED CLUTCH, A SOLENOID ACTUATED VALVE WITHIN SAID CONDUIT, A SOLENOID ASSOCIATED WITH SAID VALVE, A THERMOSTAT SWITCH ASSOCIATED WITH SAID HOUSING OF SAID CLUTCH IN HEAT TRANSFER RELATION, AN ELECTRIC CIRCUIT ASSOCIATED WITH SAID THERMOSTAT SWITCH, SAID SOLENOID ACTUATED VALVE, AND WITH A SOURCE OF ELECTRICITY, SAID THERMOSTAT SWITCH BEING RESPONSIVE TO THE HEAT GENERATED BY THE FRICTION MEMBERS OF SAID CLUTCH SO AS TO EFFECT SAID SOLENOID VALVE TO RENDER SAID CLUTCH INOPERATIVE, WHEN THE TEMPERATURE, WHICH ACTUATES SAID THERMOSTAT SWITCH, REACHES A PREDETERMINED DEGREE.
Claim 2
Dependent Claim
118 words
IN COMBINATION WITH A CLUTCH HOUSING; A FLUID ACTUATED CLUTCH, HAVING FRICTION MEMBERS THEREIN, WITHIN SAID CLUTCH HOUSING, A CONDUIT LEADING FROM A SOURCE OF FLUID PRESSURE SUPPLY TO SAID FLUID ACTUATED CLUTCH, A SOLENOID ACTUATED VALVE WITHIN SAID CONDUIT, A SOLENOID ASSOCIATED WITH SAID VALVE, A THERMOSTAT SWITCH ASSOCIATED WITH SAID HOUSING OF SAID CLUTCH IN HEAT TRANSFER RELATION, AN ELECTRIC CIRCUIT ASSOCIATED WITH SAID THERMOSTAT SWITCH, SAID SOLENOID ACTUATED VALVE, AND WITH A SOURCE OF ELECTRICITY, SAID THERMOSTAT SWITCH BEING RESPONSIVE TO THE HEAT GENERATED BY THE FRICTION MEMBERS OF SAID CLUTCH SO AS TO EFFECT SAID SOLENOID VALVE TO RENDER SAID CLUTCH INOPERATIVE, WHEN THE TEMPERATURE, WHICH ACTUATES SAID THERMOSTAT SWITCH, REACHES A PREDETERMINED DEGREE.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |