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Conversion package for aircraft de-icing machines

  • US 4,073,437 A
  • Filed: 06/11/1976
  • Issued: 02/14/1978
  • Est. Priority Date: 06/11/1976
  • Status: Expired due to Term
First Claim
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1. A conversion unit for an aircraft deicing apparatus of the type having a wheeled frame means with forward and rearward ends, an aerial platform means on said frame means, a first tank on said frame means, a second tank on said frame means, first pump means fluidly connected to said first tank and a nozzle on said aerial platform means, whereby fluid under pressure can be sprayed onto the aircraft, said conversion unit comprising:

  • conversion unit frame means for attachment to the rearward end of the wheeled frame means;

    heater means on said conversion frame means, said heater means being in fluid communication with said first tank and first pump means;

    first conduit means communicating said first tank with said heater means, said first pump means and said nozzle;

    second pump means for pumping fluid from said second tank;

    proportioning valve means communicating said second pump means with said nozzle, said proportioning valve means being adapted to vary the amount of fluid from said second tank that is sprayed from said nozzle with the fluid from said first tank;

    second conduit means communicating said second tank with said second pump means, said proportioning valve and said nozzle; and

    ,purging means associated with said second conduit means and said first conduit means for selectively circulating fluid from said second tank throughout said first conduit means, said purging means introducing said fluid into said first conduit means at a location intermediate said first pump means and said first tank.

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