Vacuum switch

Details Vacuum switch Vacuum switch

1980-01-30

1981-10-27

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83S, H01H 3534

Patent

active

042975522

ABSTRACT:
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 inoperative 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.

REFERENCES:
patent: 2813944 (1957-11-01), Tyzack
patent: 3110784 (1963-11-01), Williams
patent: 3230328 (1966-01-01), Chapin
patent: 4007344 (1977-02-01), Hipple

Affiliated with

Also associated with

Rating

Vacuum switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-281100