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| Number | Title | Issue Date |
| 5627506 | Overload protector An overcurrent protection device for a load 24 having a housing 100 with fixed contacts 108, 110, movable contacts 118, 120 and terminals 102, 104 for electrical connection to the load. A first snap acting bimetallic 116 member in the device is responsive... | 05/06/1997 |
| 4549159 | Thermostat control apparatus Apparatus for controlling a water heater thermostat for increased efficiency in fuel usage. A mounting bracket is adapted to fit on several different common types of thermostat control boxes. In one embodiment the bracket removably receives a controller h... | 10/22/1985 |
| 4491821 | Differential temperature control A differential temperature control uses a first temperature expansion element for driving a first pivoted lever supporting a selectively operable switch and a second temperature expansion element for driving a second pivoted lever for operating the switch... | 01/01/1985 |
| 4399661 | Prolonged cold temperature cryogenic cooler A cold station thermal switch at the end of a cold finger in cooperation h the detector on an inner dewar wherein the thermal switch opens at the cool down cryogenic temperature to prevent vibrations from the cooler system from being transmitted to the d... | 08/23/1983 |
| 4267413 | Temperature compensated pressure control A temperature compensated pressure control device comprising switch means for supplying pressure to a pressurized zone to maintain a predetermined pressure therein, a first diaphragm responsive to depletion of the pressure in said pressurized zone to effe... | 05/12/1981 |
