Electrical switches for mounting in control panels, especially f

Details Electrical switches for mounting in control panels, especially f Electrical switches for mounting in control panels, especially f

1998-06-15

1999-10-19

Friedhofer, Michael

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

200 11R, 200571, H01H 1954

Patent

active

059693070

ABSTRACT:
A rotary electrical switch for panel mounting in a motor vehicle for control of a blower motor of a heating, ventilating and/or air conditioning installation, includes a set of conductive contact strips. These comprise coplanar primary strips and a secondary strip for power supply. The switch has a body mounted for rotation about an axis at right angles to the plane of the coplanar contact strips. The body supports a radial ring member which is bent back into two half rings with conductive radial projecting portions connected together electrically. Each projecting portion carries at its end an arm having two contact pads for making contact with the primary contact strips in two parallel planes. The projecting portions have at least one third pad for making a further contact with the secondary contact strip in one of the two planes.

REFERENCES:
patent: 3238319 (1966-03-01), Godel et al.
patent: 3571534 (1971-03-01), Ashman
patent: 3689714 (1972-09-01), Walz
patent: 3862383 (1975-01-01), Bednarek et al.
patent: 4401862 (1983-08-01), Valentin et al.
patent: 4572931 (1986-02-01), Shiraishi et al.
patent: 5290980 (1994-03-01), Cummings
patent: 5577605 (1996-11-01), Dilly et al.

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