Adjustable condition responsive control

Details Adjustable condition responsive control Adjustable condition responsive control

1977-02-09

1979-03-13

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

Expansible or vaporizable fluid actuated

337387, H01H 3712

Patent

active

041445155

ABSTRACT:
A condition responsive control is disclosed which includes a support housing, a snap switch supported by the housing having first and second control conditions for governing operation of a condition altering device, a condition responsive actuator system supported by the housing remote from the switch and a lever system coacting between the switch and the actuator for enabling operation of the switch between its conditions.
The actuator coacts with the lever system via a lost motion mechanism which enables the establishment of a differential between the sensed condition levels at which the switch is operated. The lost motion mechanism is adjustable to alter the sensed condition levels at which the switch is operated throughout a relatively wide range and is also adjustable to permit the extent of the differential to be changed.

REFERENCES:
patent: 3103568 (1963-09-01), Liebermann et al.
patent: 3177321 (1965-04-01), Grimshaw
patent: 3386064 (1968-05-01), Russell

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