US Patent:
20020130025, Sep 19, 2002
Inventors:
Peter Laier - Gilbert AZ, US
International Classification:
H01H013/70
Abstract:
An electrical switch laminate includes: a flexible membrane layer, a plurality of sub layers including a backing layer, electrical contacts of the switch within a switch cavity of the laminate, and an electrically conductive upper contact within the switch cavity of the laminate. The flexible membrane layer overlays and partially encloses the switch cavity that is airtight except for a vent passage extending along a major surface of one of the sub layers to equalize the pressure between the switch cavity and a surrounding environment.