Sequentially operated membrane switches

Details Sequentially operated membrane switches Sequentially operated membrane switches

1996-07-17

1998-02-10

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Sequential operations

200 5A, 200512, H01H 1370

Patent

active

057171769

ABSTRACT:
An improved membrane switch includes multiple detents. A pair of electric circuits are completed by the membrane switch, and a pair of flexing portions are located on said membrane. A first flexing portion is overcome by a first lower insertion force to allow a first circuit to be complete, and a second flexing portion is only overcome by further insertion force. The second flexing portion is eventually overcome and completes a second circuit. The inventive membrane switch provides the operator with a clear indication and a detent feel for each of the two circuits.

REFERENCES:
patent: 4376238 (1983-03-01), Martin
patent: 4668843 (1987-05-01), Watanabe et al.
patent: 5559311 (1996-09-01), Gorbatoff

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