Membrane switchcores with key cell contact elements connected to

Details Membrane switchcores with key cell contact elements connected to Membrane switchcores with key cell contact elements connected to

1988-12-28

1989-08-15

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

174 685, 200512, 200292, 361398, H01H 1370, H05K 100

Patent

active

048576832

ABSTRACT:
Flexible membrane switchcores (100, 100a,100b) including a conductive first circuit (180) having first traces (171-178;194;196) and a conductive second circuit (185) having second traces (186-192;195;197), first contact elements (107a-162a) formed as nonbranched integral sections of the first traces (171-178;194;196), and second contact elements (107b-172b) formed as nonbranched integral sections of the second traces (186-192;195;197).

REFERENCES:
patent: Re29440 (1977-10-01), Durkee et al.
patent: 3699294 (1972-10-01), Sudduth
patent: 3860771 (1975-01-01), Lynn et al.
patent: 3987259 (1976-10-01), Larson
patent: 4127740 (1978-11-01), La Marche
patent: 4451714 (1984-05-01), Eventoff
patent: 4488016 (1984-12-01), Fukukura
patent: 4493952 (1985-01-01), Kaleida
patent: 4562315 (1985-12-01), Aufderheide
patent: 4647729 (1987-03-01), Collar et al.
patent: 4795861 (1989-01-01), O'Rourke

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