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US 4,381,744 AGranted
Fluid temperature monitor
AssigneeD. A. Terry
InventorD. A. Terry
Life of this patent
Estimating the term…
Abstract
A fluid temperature monitor coupled into the engine coolant fluid circuit of an internal combustion engine includes a thermostat which is responsive to overheating of the fluid to operate a plunger so as to actuate a first switch upon overheating of the fluid to sound a warning alarm and a second switch to turn off the engine.
Claims10
A fluid temperature monitor for monitoring the temperature of a fluid comprising:
- thermostat means operable in response to the temperature of the fluid,
- warning means,
- first switch means having first contacts which are actuated by said thermostat means to close and complete an electrical circuit to actuate said warning means when the temperature of said fluid reaches a predetermined level,
- prime mover cutoff means,
- second switch means having second contacts which are actuated by said thermostat means to close and complete an electrical circuit to actuate said prime mover cutoff means after said warning means has been actuated, and
- means for bathing said thermostat means and said contacts directly in said fluid being monitored.
3 more elements
A fluid temperature monitor for monitoring the temperature of a fluid comprising;
- thermostat means operable in response to the temperature of the fluid;
- warning means;
- prime mover cutoff means;
- switch means having contacts which are actuated by said thermostat means to actuate said warning means when the temperature of said fluid reaches a predetermined level;
- delay means for actuating said prime mover cutoff means after said warning means is actuated;
- and
- housing means containing said thermostat means and said contacts, said housing means receiving said fluid to be monitored, said thermostat means and said contacts being bathed directly in said fluid in said housing means.
4 more elements
Dependencies are inferred from the claim text.