×

Air pressure detection device for tire

  • US 20020105420A1
  • Filed: 01/30/2002
  • Published: 08/08/2002
  • Est. Priority Date: 01/30/2001
  • Status: Active Grant
First Claim
Patent Images

1. An air pressure detection device for a tire comprising:

  • an air pressure sensor for measuring the air pressure of a tire;

    a temperature sensor for measuring the temperature at a predetermined portion in said tire;

    a reduced air pressure arithmetic means for calculating a reduced air pressure from the air pressure measured by said air pressure sensor and the temperature measured by said temperature sensor; and

    an alarm signal generating means for generating an alarm signal when the reduced air pressure calculated by said reduced air pressure arithmetic means is lowered to or below a predetermined first threshold value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×