Electrical resistors – Resistance value responsive to a condition – Ambient temperature
Patent
1978-04-03
1979-03-06
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Ambient temperature
338 22R, 338 30, 338271, H01C 300
Patent
active
041433475
ABSTRACT:
A temperature detecting device comprising a protective tube means having a flat inner bottom surface and a top opening end with a resilient metallic member positioned inside the tube for holding a thermistor. The resilient metallic member has a bottom surface essentially parallel to the bottom surface of the protective tube means which is in substantial surface contact with that bottom surface. The metallic member further has a remaining portion essentially perpendicular to the bottom portion and slightly longer than the distance between the bottom surface and the top opening of the tube means. A thin layer of metal, softer than the metal from which the member is made, is positioned between the bottom portion member and the bottom surface of the tube. The thermistor is mounted on the remaining portion of the member. Tube closing means are employed to fit on the top of the opening end of the tube means and are positioned to compress the remaining portion of the member to thereby urge contact between the bottom portion of the member and the bottom surface of the tube.
REFERENCES:
patent: 3335382 (1967-08-01), Forbes
patent: 3832668 (1974-08-01), Berman
patent: 3868620 (1975-02-01), McBride, Jr. et al.
patent: 3890588 (1975-06-01), Kanaya et al.
Albritton C. L.
Honeywell Inc.
Munday John S.
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