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Visual tire cap pressure indicator

  • US 5,929,330 A
  • Filed: 04/28/1998
  • Issued: 07/27/1999
  • Est. Priority Date: 11/14/1997
  • Status: Expired due to Fees
First Claim
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1. A gauge comprising:

  • a. a chamber adapted to be placed in fluid communication with a pressurized device;

    b. a converter operably associated with the chamber;

    c. a cylindrical rotary member coupled to the converter including an open-ended bottom, a closed-ended top, a side portion extending from top to bottom and an indicator pattern on the exterior surface of the side portion; and

    d. a cap covering the rotary member including an open-ended cap bottom, a closed-ended cap top, a cap side portion extending from top to bottom, a cylindrical inner surface co-axial with the exterior surface of the rotary member, and a plurality of windows having a width,where in response to a change in chamber pressure, the converter moves causing the rotary member to rotate relative to the cap windows changing an indicator state from a first state to a second state where the indicator state is viewable from the cap side.

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