Industrial membrane switch with breather

Details Industrial membrane switch with breather Industrial membrane switch with breather

H - Electricity

01

H

306/304

H01H 13/50 (2006.01) H01H 9/04 (2006.01) H01H 13/14 (2006.01) H01H 13/52 (2006.01)

Patent

CA 1160270

INDUSTRIAL MEMBRANE SWITCH WITH BREATHER Abstract of the Disclosure A push button switch has an operator that is mounted for axial movement within a bezel towards its exit end. A contact assembly is disposed across the exit of the bezel. The contact assembly includes a pair of termination areas formed on a substrate and a shorting patch disposed on a flexible membrane, the shorting patch being separated from the termination areas by a spacer to provide a switch air gap. A second spacer is disposed on the other side of the substrate and forms an air reservoir that communicates with the switch air gap through an aperture in the substrate. When the operator is moved against the membrane to close the switch air gap, air is circulated into the air reservoir increasing the pressure therein, and returns to break the contact of the termination areas with the shorting patch when the operator is retracted.

380970

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