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Tire inflation indicator

  • US 4,851,809 A
  • Filed: 11/07/1988
  • Issued: 07/25/1989
  • Est. Priority Date: 11/07/1988
  • Status: Expired due to Fees
First Claim
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1. Apparatus for indicating the air pressure in a tubeless automobile tire, or the like, having a sidewall mounted on the wheel rim of a vehicle, comprising:

  • (a) a visible indicator mounted on the sidewall of said tire externally of the tire; and

    (b) means for sensing the pressure within said tire mounted on the sidewall of said tire within said tire having an output to actuate said indicator at a predetermined pneumatic pressure.

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