Pressure activated switching device

Details Pressure activated switching device Pressure activated switching device

1999-09-20

2000-09-19

Easthom, Karl

Electrical resistors

Mechanically variable

Surfaces pressed together

338 47, 338114, 200511, 200512, H01C 1010

Patent

active

061218693

ABSTRACT:
A pressure activated switching device includes an electrically insulative standoff positioned between two conductive layers. The standoff is preferably a polymeric or rubber foam configured in the form of contoured shapes having interdigitated lateral projections. Optionally, the switching device can include a piezoresistive material positioned between a conductive layer and the standoff. The pressure activated switching device can be used, for example, in a safety sensing edge system for a movable door.

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