Vacuum switch

Details Vacuum switch Vacuum switch

H - Electricity

01

H

306/206

H01H 35/34 (2006.01) H01H 35/26 (2006.01)

Patent

CA 1137530

Abstract of the Invention A vacuum switch in which the diaphragm movement with increasing vacuum is opposed by two springs which determine the vacuum required to actuate the switch. As the vacuum subsequently decreases one of the springs is rendered in- operative before the switch resets so the reset vacuum is determined by the one spring remaining effective. The spring which is rendered inoperative is compressed between the actuator and an eyelet which can seat on the actuator (spring ineffective) or the housing (spring effective) and which also functions to limit motion of the actuator relative to the eyelet so the switch operated by the actuator cannot be overstressed.

367104

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