Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1991-02-21
1991-12-10
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200512, 200292, 361398, H01H 1370, H05K 100
Patent
active
050720775
ABSTRACT:
A membrane has strips of membrane material attached at their first end to an upper surface of the lower membrane layer. The strips stay flush with the upper surface when the electrically conductive material is patterned thereon such that material is contiguous along the strips and the upper surface. Adjacent the first end of the strips is a hole cut through the lower membrane layer. After the material is patterned and the hole is cut, the second end of the strip is peeled from the upper and rounded through the hole with the strip being folded back over itself. The second end of the strip may then extend externally of the membrane switch for connection to a switchable device.
REFERENCES:
patent: 3987259 (1976-10-01), Larson
patent: 4303811 (1981-12-01), Parkinson
patent: 4375018 (1983-02-01), Petersen
patent: 4510353 (1985-04-01), Nemitz
patent: 4845323 (1989-07-01), Beggs
patent: 4990724 (1991-02-01), Suppelsa et al.
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