Patent ID: 8387453

Claim:
A digital tire pressure gauge comprising: a housing having a first and a second end; a port at said first end of said housing, said port adapted to engage with and open a needle valve of a tire valve stem; a sensor housing disposed in said housing and defining an air chamber therein; a pressure sensor disposed in said sensor housing; a processor in electronic communication with said pressure sensor; a bleed valve disposed in said sensor housing, said bleed valve comprising: a tube having a first end disposed in an opening of a wall of said sensor chamber; a stem comprising, at a first end, a head protruding outside said tube and adapted to cover said opening in the wall of said sensor chamber; a spring in contact with said stem and said tube, wherein said spring is adapted to provide contact between said head and said opening; and a bleed lever in contact engagement with a second end of said stem, wherein, when said port is coupled to the tire valve stem, in a first operational mode, said bleed valve is closed and an air pressure measurement is obtained, and, in a second operational mode, said bleed lever, when pressed, causes said bleed valve to open and to allow air to be bled out from the tire via the pressure gauge.