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Windshield heated wiping system

  • US 5,957,384 A
  • Filed: 08/26/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 08/26/1997
  • Status: Expired due to Term
First Claim
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1. A cleaning system for a windshield of a vehicle having an engine having a heat source comprising:

  • a fluid nozzle having an outlet directed towards the windshield,a source of windshield cleaning fluid,a housing defining a fluid chamber,a piston disposed in said fluid chamber and having a periphery in sealing contact with said housing, said piston dividing said fluid chamber into an inlet chamber and an outlet chamber, said piston being movable between a first position and a second position in said fluid chamber,means for resiliently urging said piston towards said first position,means for fluidly connecting said outlet chamber to said nozzle,means for transferring heat from the heat source to said outlet chamber,means for providing pressurized fluid from said source of fluid to said inlet chamber to thereby move said piston from said first position towards said second position to thereby pump fluid in said outlet chamber through said fluid connecting means to said nozzle,said piston forming an opening between said piston periphery and said housing at said second position to fluidly connect said inlet and outlet chambers.

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