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Tire pressure indicator carried aboard a wheel

  • US 5,979,232 A
  • Filed: 10/13/1998
  • Issued: 11/09/1999
  • Est. Priority Date: 10/13/1998
  • Status: Expired due to Fees
First Claim
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1. A tire pressure indicator to be installed in a pneumatic wheel and tire assembly, for indicating pressure within the tire, comprising:

  • a housing having an inner chamber and a window exposing said inner chamber to the exterior of said housing;

    an indicating member slidably disposed within said inner chamber, said indicating member having a first external area colored with a first predetermined hue for indicating proper pressure within the tire;

    a connector disposed to manually connect said housing to the wheel on which the tire is mounted, said connector having an air passage establishing pneumatic communication between said inner chamber and air generating pressure within the tire;

    resilient biasing means for moving said indicating member within said inner chamber responsive to pressure conducted through said air passage such that said first external area colored with a first predetermined hue is visible through said window when pressure within the tire is in a predetermined range of pressures; and

    a bypass conduit disposed in pneumatic communication with said air passage of said connector, whereby the tire is charged with compressed gas without removing said tire pressure indicator from the wheel.

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