Encapsulated, waterproof temperature sensitive device and method

Details Encapsulated, waterproof temperature sensitive device and method Encapsulated, waterproof temperature sensitive device and method

1981-10-09

1984-03-13

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338 25, 338 28, H01C 713

Patent

active

044370849

ABSTRACT:
An encapsulated, waterproof temperature sensor, such as a thermistor, and a method of manufacturing the same are presented. The sensor is assembled with a sensor cord. The cord includes a cable with an insulating jacket and at least two conductors each with an insulating sheath. Leads of a temperature sensor, such as a thermistor, are connected to ends of the respective conductors. Heat-shrink plastic surrounds one lead and the associated conductor end. Tubing of insulating material surround the temperature sensor, its leads, the conductor ends, and the heat-shrink plastic. A shroud is molded over the tubing and a portion of the cable jacket so that the temperature sensor is encapsulated and waterproof. Four coplanar pins may be used with the shroud mold to ensure that the temperature sensor is appropriately centered in the shroud.

REFERENCES:
patent: 3402378 (1968-09-01), Catlin et al.
patent: 3441893 (1969-04-01), Gordon et al.
patent: 3537053 (1970-10-01), Snoberger et al.
patent: 3681993 (1972-08-01), Campton et al.
patent: 4079350 (1978-03-01), Sentenments et al.
patent: 4166389 (1979-09-01), Montren
patent: 4204186 (1980-05-01), Parisi et al.
patent: 4246786 (1981-01-01), Weimer et al.
patent: 4246787 (1981-01-01), Harper

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