Four position two dome switch

Details Four position two dome switch Four position two dome switch

1996-08-09

1998-11-10

Coggins, Wynn Wood

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200 1B, 200517, 200339, H01H 926, H01H 900, H01H 110

Patent

active

058347160

ABSTRACT:
The invention includes a mechanism for multi-dome dual detent switches having at least a first and second collapsible dome structure. An elongated action bar extends across and bridges the first and second collapsible dome members. The action bar has a top surface and a bottom surface. A notch is formed in the top surface closer to one of the dome structures. A keycap positioned for pivotal movement between a first and second forward position, and a first and second rear position. The keycap includes an engagement bar extending downwardly near one end and positioned to be received in the notch formed in the top surface of the action bar.

REFERENCES:
patent: 4081632 (1978-03-01), Schaffeler
patent: 5412164 (1995-05-01), Conway et al.
patent: 5426275 (1995-06-01), Maeda et al.
patent: 5430261 (1995-07-01), Malone
patent: 5510583 (1996-04-01), Pescetto
patent: 5559311 (1996-09-01), Gorbatoff
patent: 5622254 (1997-04-01), Lee
patent: 5719361 (1998-02-01), Lee

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