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US 4,396,811 AGranted
D.C. Power reversing switch
OwnerPeter Kljucaricekinventor
Life of this patent
Estimating the term…
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OwnerPeter Kljucaricekinventor
Estimating the term…
Improvement in a D.C. power reversing switch having a base having an insulator plate fast thereon and four spaced apart metal contact plates fast on the top side of the insulator plate, a manually moveable switch plate consisting of a second insulator plate and a pair of spaced apart metal jumper plates fast on the underside of the second insulator plate, a centrally disposed shaft upstanding from the base for rotatably holding the switch plate thereon, the switch having four separate contact areas thereon, the improvement comprising a clamp support fastened to the base, upstanding therefrom, extending over the switch plate and disposed above the four contact areas, and clamps operative between the support arrangement and the switch plate for pressing down thereupon at the centers of the four contact areas for forcing the jumper plates into face to face contact with the four contact plates.
Improvement in a D.C power reversing switch having a base having an insulator plate fast thereon and four spaced apart metal contact plates fast on the top side of said insulator plate, a manually moveable switch plate consisting of a second insulator plate and a pair of spaced apart metal jumper plates fast on the underside of said second insulator plate, a centrally disposed shaft upstanding from said base for rotatably holding said switch plate thereon, said switch having four separate contact areas thereon, the improvement comprising clamp support means fastened to said base, upstanding therefrom, extending over said switch plate and disposed above the four contact areas, and clamping means operative between said support means and said switch plate for pressing down thereupon at the centers of said four contact areas for forcing the jumper plates into face to face contact with said four contact plates.
Improvement in method of constructing a D.C. power reversing switch having a base having an insulator plate fast thereon and four spaced apart metal contact plates fast on the topside of on said insulator plate, a manually moveable switch plate consisting of a second insulator plate and a pair of spaced apart metal jumper plates fast on the underside of said second insulator plate, rotatably holding said switch plate on said base, said switch having four separate contact areas thereon, the improvement comprising providing clamp support means fastened to said base, upstanding therefrom, extending over said switch plate and disposed above the four contact areas, and providing clamping means operative between said support means and said switch plate for pressing down thereupon at the centers of the four contact areas for forcing the jumper plates into face to face contact with said four contact plates.
Dependencies are inferred from the claim text.