Multidome multistage switch assembly

Details Multidome multistage switch assembly Multidome multistage switch assembly

1986-01-27

1987-04-21

Pellinen, A. D.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200 67R, 200159B, 200340, H01H 312

Patent

active

046598812

ABSTRACT:
An electrical switch assembly has a pair of conducting resilient domes which snap inwardly to produce corresponding switching functions when downward pressure is applied at their respective centers and snap outwardly to produce opposite switching functions when the applied pressure is removed. The pair of domes are supported one within the other in spaced relation with their respective centers substantially in alignment. Pressure applying means, such as a push button, is mounted for movement in line with the aligned centers of the outer and inner domes to a first predetermined position to snap the outer dome inwardly and to a second predetermined position to snap the inner dome inwardly. The successive snapping actions of the two domes to produce corresponding switching functions provide respective stages of tactile feedback through the push button to the operator.

REFERENCES:
patent: 3917917 (1975-11-01), Murata
patent: 3969595 (1976-07-01), Johnson
patent: 4343973 (1982-08-01), Main

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