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Saw based tire pressure sensor valve adaptor

  • US 7,779,681 B2
  • Filed: 05/12/2005
  • Issued: 08/24/2010
  • Est. Priority Date: 06/22/2004
  • Status: Expired due to Fees
First Claim
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1. A sensor housing for mounting on an inflation valve of a tire having an inflation duct, comprising:

  • a sensor housing having (i) a tube with a fastening end adapted to fasten the housing onto the inflation valve, and (ii) a through passage extending from the fastening end through said sensor housing, the through passage capable of providing a fluid coupling between the inflation duct and the atmosphere surrounding said housing;

    a surface acoustic wave (SAW) based pressure sensor mounted within said sensor housing, wherein the SAW based pressure sensor is in fluid communication with the atmosphere surrounding said housing; and

    a fastening element with threads formed on said fastening end, adapted to engage an inner surface of said inflation duct, wherein the threads are self tapping and are configured to cut a complementary thread at the mating end of the inflation valve as the sensor housing is screwed in to the valve.

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