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VARIABLE RATIO PROPORTIONING DEVICE

  • US 3,741,610 A
  • Filed: 07/13/1970
  • Issued: 06/26/1973
  • Est. Priority Date: 07/13/1970
  • Status: Expired due to Term
First Claim
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1. A variable ratio proportioning device comprising in combination:

  • a housing containing a piston and cylinder connected to an inlet for pressure fluid on one side and to an outlet for pressure fluid on the other side;

    means for applying a biasing force to the piston;

    means for varying the magnitude of the biasing force as a predetermined, non-linear function of the inlet fluid pressure; and

    means controlled by said piston for admitting fluid from the inlet to the outlet of the device and providing an outlet fluid pressure which varies according to said predetermined, nonlinear function of the inlet fluid pressure.

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