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TIRE PRESSURE SENSOR

  • US 20110025487A1
  • Filed: 07/29/2009
  • Published: 02/03/2011
  • Est. Priority Date: 07/29/2009
  • Status: Active Grant
First Claim
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1. A tire pressure sensor for a pneumatic tire, the tire pressure sensor comprising:

  • a housing;

    a pressure transducer within the housing;

    a transmitter within the housing electronically coupled to the pressure transducer;

    one or more batteries within the housing connected to deliver electrical power to the pressure transducer and to the transmitter;

    a pressurized compartment within the housing bounded at least partially by a flexible membrane, the membrane within the housing and having an outward surface spaced apart from the housing;

    a first conduit extending between the pressure transducer and the compartment for passage of air from within the compartment to the pressure transducer; and

    at least one inlet port extending through the housing to allow pressurized air within the tire to contact the outward surface of the membrane.

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