Pressure switch
First Claim
1. Pressure switch means comprising an intermediate layer of non-conductive resiliently yieldable sheet material with openings, a pair of contact layers of conductive flexible sheet material in unsecured facing engagement with opposite sides of and defining a sandwich with said intermediate layer, said sandwich being flexible for electrical contact of said contact layers through one of said openings of said intermediate layer, and a pair of enclosure layers of non-conductive flexible sheet material in unsecured facing engagement with opposite sides of said sandwich, one pair of opposite edge margins of said intermediate layer extending beyond said contact layers and being secured to and between said enclosure layers without securement to said contact layers, said enclosure and intermediate layers combining to define flat pockets on opposite sides of said intermediate layer conformably receiving said contact layers without positive securement to the latter.
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Accused Products
Abstract
A pressure switch wherein a resiliently yieldable intermediate open layer is sandwiched between flexible conductive layers, all of which is enclosed between flexible outer layers, so that in the unstressed or relatively unstressed condition the contact layers are spaced apart by the intermediate layer, while flexure or other sufficient stressing of the assembly effects contact of the contact layers through the open intermediate layer.
33 Citations
6 Claims
- 1. Pressure switch means comprising an intermediate layer of non-conductive resiliently yieldable sheet material with openings, a pair of contact layers of conductive flexible sheet material in unsecured facing engagement with opposite sides of and defining a sandwich with said intermediate layer, said sandwich being flexible for electrical contact of said contact layers through one of said openings of said intermediate layer, and a pair of enclosure layers of non-conductive flexible sheet material in unsecured facing engagement with opposite sides of said sandwich, one pair of opposite edge margins of said intermediate layer extending beyond said contact layers and being secured to and between said enclosure layers without securement to said contact layers, said enclosure and intermediate layers combining to define flat pockets on opposite sides of said intermediate layer conformably receiving said contact layers without positive securement to the latter.
Specification