Mechanically operated pressure switch having solid state compone

Details Mechanically operated pressure switch having solid state compone Mechanically operated pressure switch having solid state compone

1986-01-03

1987-02-10

Tolin, G. P.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

200 83P, 200 51R, H01H 3534

Patent

active

046424784

ABSTRACT:
A pressure switch having mechanical and solid state components enclosed within a common cover. The mechanical components and the cover are secured to a support. The mechanical components include a snap acting switch having terminals connected to an alternating current source and an alternating current motor and a diaphragm that operates the snap switch in response to pressure changes in a fluid system. The cover includes a dividing wall that separates an internal cavity within the cover into two chambers with a rear chamber providing an enclosure for the mechanical components and the front chamber providing an enclosure for the solid state components that include means for detecting the motor current and voltage and a microcomputer. The dividing wall has spaced openings for connectors that provide a separable electric connection between the terminals in the rear chamber and the solid state components in the front chamber.

REFERENCES:
patent: 2885860 (1959-05-01), Ray
patent: 3226505 (1965-12-01), Lucas et al.
patent: 3243682 (1966-03-01), Gold
patent: 3345480 (1967-10-01), Zeller
patent: 3869563 (1975-03-01), Ocken, Jr.
patent: 3875358 (1975-04-01), Willcox

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