Acoustic pulse transfer system for event counting

Adjustable pressure switch

Apertured diaphragm end valve

Bed occupant sensing device

Binary switch apparatus and method for manufacturing same

Binary switch apparatus and method for manufacturing same

Boundary for switch apparatus

Continuous flexible electric conductor capable of functioning as

Continuous-length switch

Cushion spring safety system

Device and method for recognizing the occupancy of a seat

Device for detecting pressure and passage of a vehicle wheel...

Device for indicating the presence of a load on a vehicle seat

Disc switch

Elastic strip with contacts for detecting the transit of motor v

Electric mat switch

Electrical contact mat with device for closed-circuit...

Electrical switch

Electrical switch for use by the disabled

Electrical switch mat