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Illuminating rotary switch

  • US 6,608,272 B2
  • Filed: 01/30/2001
  • Issued: 08/19/2003
  • Est. Priority Date: 01/30/2001
  • Status: Expired due to Term
First Claim
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1. An improved rotary switch having a rotating contact member for determining a circuit path from among several possible circuit paths, the improvement comprising:

  • a light pipe dispose within the rotary switch along a longitudinal axis, the light pipe having first and second ends and where a first end lies in a shaft that protrudes through an end of the rotary switch and a second end located within the rotary switch;

    a plurality of contact decks arranged longitudinally along the rotary switch, a contact drum associated with each contact deck, the contact drum including a contact to provide electrical contact between a universal contact and a selected individual contact on the deck; and

    , a light source disposed within the rotary switch and adjacent the second end of the light pipe, whereby illumination from the light source is carried through the light pipe and transmitted at the first end of the light pipe to illuminate the shaft.

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