Thermally actuated liquid level sensor

Details Thermally actuated liquid level sensor Thermally actuated liquid level sensor

1975-02-13

1976-06-08

Budd, Mark O.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337107, H01H 6102

Patent

active

039626652

ABSTRACT:
An electro-thermally activated liquid level sensor that functions reliably under widely varying conditions of ambient temperature and supply voltage makes use of an elongate bimetal element cantilevered at one end thereof in a heat conductive wall adapted to be contacted by the liquid and heated by an electrical resistance element, e.g. by a resistance wire wound about the bimetal element and grounded through it, so that the free end of the bimetal element will close cntacts for a signalling circuit when liquid is not contacting said wall and will open the contracts in response to the loss of heat through the fixed end when liquid is contacting said wall. The bimetal element is composed of oppositely oriented bimetal strip segments fixed one to an end of the other and proportioned with the windings of the resistance wire, so that the switching action of the free end is not voltage-dependent; i.e., it will persist in the absence of a heat sink at said wall irrespective of variations of current flow through the resistance element.

REFERENCES:
patent: 3171934 (1965-03-01), Brennan et al.
patent: 3474372 (1969-10-01), Davenport et al.
patent: 3510836 (1970-05-01), Summerer

Affiliated with

Also associated with

Rating

Thermally actuated liquid level sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermally actuated liquid level sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally actuated liquid level sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1103011