Title: Temperature sensitive resistor having a critical transition temperature of about 140.degree.C

Abstract: A solid state switching device comprises a temperature sensitive resistive element of V.sub.3 O.sub.5 material which exhibits an abrupt decrease in electrical resistance at about 140.degree.C and electrode lead wires attached to spaced points of such temperature sensitive resistive element for connecting the temperature sensitive resistive element to an electrical circuit.

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Inventors: Eastwood, H. Keith (Beaconsfield, CA, US)
Simon, Thomas R. (Cote St. Luc, CA, US)
Khoi, Nguyen N. (Montreal, CA, US)

Application Number: 500732
Filing Date: 1974-08-26
Publication_date: 1976-02-03
Assignee: Multi-State Devices, Ltd. (Dorval, CA)
Primary Class(es): 338/25 252/520.4, 338/22SD
Other Classes:
US Patent Ref:

2884508	Apr, 1959	Czipott et al.	338/309.
3295087	Dec, 1966	Landis et al.	338/22.
3402131	Sep, 1968	Futaki et al.	338/22.
3452314	Jun, 1969	Sapoff et al.	338/309.
3650680	Mar, 1972	Teeg et al.	423/592.

Other Refs:
Primary Examiner: Albritton, C. L.
Assistant Examiner:
Attorney: Spencer & Kaye