Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1992-07-21
1994-11-22
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
338 26, 338 28, H01C 710
Patent
active
053672828
ABSTRACT:
An electric motor protector sensor contains a small thermistor of low thermal inertia contained in a high temperature dielectric covering member in which electrical insulated lead wires are connected to opposite sides of the thermistor and extend out of the cover member to a current source to supply electrical current to the thermistor. An electrically insulating, thermally conductive silicone elastomer is positioned around the thermistor and lead wires to absorb forces on the sensor thereby protecting electrical contact between the lead wires and damage to the thermistor. Additionally, the lead wires can be twisted as extending out of the cover member and covered with another sleeve covering to provide improved protection against lead wire separation from thermistor surface electrical contact.
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Baumann Russell E.
Donaldson Richard L.
Grossman Rene E.
Lateef Marvin M.
Texas Instruments Incorporated
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