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Device for measuring tire pressure and tire tread depth

  • US 4,970,894 A
  • Filed: 10/26/1989
  • Issued: 11/20/1990
  • Est. Priority Date: 10/26/1989
  • Status: Expired due to Fees
First Claim
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1. A device for measuring an internal pressure and a tread depth of a tire comprising:

  • a body having an elongated bore which accommodates a pressure sensing and measuring unit, and an adapter to connect said pressure sensing and measuring unit to an inflating valve of the tire,said body further having a first slide groove extending adjacent said bore, a slide piece received in said first slide groove, means for preventing said slide piece from escaping, and graduation marks provided on said slide piece,said slide piece having a bottom tapered end to extend out from said first slide groove to a tread of the tire and a front face to be exposed from said first slide groove, said first slide groove having a bottom end to permit said bottom end of said slide piece to move outward, and a front open end to expose said front face of said slide piece.

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