Pusher and switch device for electronic watch

Details Pusher and switch device for electronic watch Pusher and switch device for electronic watch

1976-01-14

1977-05-10

Scott, James R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

58 23R, 58 33, 58 34, 58 855, 58 90B, 200302, 200340, H01H 312, G04C 300

Patent

active

040230023

ABSTRACT:
The pusher and switch device is employed in electronic watches for actuating, for example, a display light. The pusher includes a crown portion, a stem portion extending through the wall of the case and having an intermediate section on the inside of the case which cooperates with a single stamped spring to provide axial movement of the stem.
In addition to permitting axial movement of the stem, the spring arrangement also provides electrical contact to ground the stem to the case.
A sealing element or gasket is held in an annular groove formed in the stem which contacts the internal surface of the case to provide for water resistant construction.

REFERENCES:
patent: 3737605 (1973-06-01), Tobey et al.
patent: 3783607 (1974-01-01), Feurer
patent: 3810354 (1974-05-01), Naikaido et al.
patent: 3846971 (1974-11-01), Ho et al.
patent: 3874162 (1975-01-01), Boxberger et al.
patent: 3973099 (1976-08-01), Morris, Sr.
patent: 3974351 (1976-08-01), Solov et al.

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