Pressure switch with plural axes pivoted conduction plate

Details Pressure switch with plural axes pivoted conduction plate Pressure switch with plural axes pivoted conduction plate

1976-07-12

1977-09-13

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Plural switch

200153T, H01H 3524

Patent

active

040484556

ABSTRACT:
A conductive member of plate form is supported on a spring biased member into a static postion of contact at a first corner with a support surface and at a second adjacent corner with a first contact member. A load applying member makes contact with the conductive member on the side thereof opposite from the spring biased support. A low rising pressure acting through the load applying member swings the conductive member in position about a first axis defined by its locations of contact with the support surface and the first contact member into a position in which it also contacts a second contact member and completes a conductive path between the two contact members. An intermediate rising pressure signal causes the conductive member to swing in position about a second axis defined by its locations of contact with the two contact members and against the operator of a micro-switch. A high rising pressure signal causes the conductive member to swing in position about a third axis defined by its locations of contact with the operator of the micro-switch and with the second contact member and move out of contact with the first contact member, to in that manner open the conductive path between the two contact members.

REFERENCES:
patent: 3670116 (1972-06-01), Cryer
patent: 3898405 (1975-08-01), Weber
patent: 3946174 (1976-03-01), Herbst

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