H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/208
H01H 35/34 (2006.01)
Patent
CA 1045191
ABSTRACT OF THE DISCLOSURE A control device having a pressure sensing element coupled to a balance plate. The balance plate, in turn, is coupled to a microswitch by an actuating rod. Variations in pressure displace the sensing element which, in turn, pivotally displaces the balance plate sequentially about first and second axes. A pair of springs are coupled to the balance plate. The bosses facilitate use of identical springs and adjusting members in a control device where the differential between control points if fully adjustable. The control device has a housing including upper an lower sections, the upper section having a microswitch associated therewith, the lower section having the balance plate and associated elements disposed therein. A re- cessed space at the exterior of the housing is defined by the upper and lower housing sections. The adjusting member for the springs extend into the recessed space so as to be readily accessible from the exterior of the housing. The control device includes a detectable pressure transducer which facilitates con- version of the control device from one application to another.
223749
Otto Noel A.
Riefler Roger G.
LandOfFree
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