Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1975-11-19
1977-07-26
Scott, James R.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
200 11G, 200257, 200292, 200293, 200295, H01H 900, H01H 1958
Patent
active
040385043
ABSTRACT:
A wafer switch includes a printed circuit board having etched thereon a common ring and a desired number of contacts having parallel sides at an angle to a radius of the common ring, and includes a rotor. The rotor has mounted on one side a blade that bridges between a contact and the common ring accomplishing a switching function. The switch further includes a spacer ring and a wave washer that establish a bearing distance between the rotor and the printed circuit board. Finally, the improved wafer switch includes a snap-in bushing intended to pass through an aperture in the board and an aperture in the rotor. The aperture in the rotor is smaller in diameter than the bushing so that the bushing is frictionally mounted within the aperture.
REFERENCES:
patent: 2847523 (1958-08-01), Van Amelsfort
patent: 3098130 (1963-07-01), Clavel
patent: 3200208 (1965-08-01), Mastney
patent: 3394236 (1968-07-01), Grundig et al.
patent: 3440640 (1969-04-01), Droniou et al.
patent: 3518389 (1970-06-01), Doering, Jr. et al.
patent: 3594527 (1971-07-01), Brant et al.
patent: 3621162 (1971-11-01), Wall
patent: 3924185 (1975-12-01), Schwartz
McAnulty James C.
McCarthy Edwin B.
A.C. Nielsen Company
Scott James R.
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