Resistive material level sensor

Details Resistive material level sensor Resistive material level sensor

1987-03-25

1989-03-28

Goldberg, E. A.

Electrical resistors

Resistance value responsive to a condition

30 904, 81 94, H01C 700

Patent

active

048167991

ABSTRACT:
A distributed resistance material level sensor which is sensitive to actuation pressure of the material in which the sensor is immersed, and ruggedized to provide protection of the sensor by forces encountered during handling and during use. The sensor includes an elongated strip having sensitive front and back surfaces and respective insensitive edges extending along the length of the sensor. An elongated protective element is provided on each edge of the sensor, the element being retained on a respective insensitive edge and having a cross-sectional extent to provide mechanical contact and abrasion protection.

REFERENCES:
patent: 1129310 (1915-02-01), Platt
patent: 2704000 (1955-03-01), Miller
patent: 3511090 (1970-05-01), Ehrenfried et al.
patent: 3583221 (1971-06-01), Ehrenfried
patent: 3792407 (1974-02-01), Ehrenfried et al.
patent: 4313049 (1982-01-01), Meywald et al.
patent: 4536957 (1985-08-01), Britton

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