Patent ID: 9403410
Filing Date: 2016-08-02
CPC Classification: B60C,F16K

Claim Text:
1. A method for decreasing tire pressure, comprising: providing a wheel assembly which defines a chamber that houses a pressurized fluid; providing a wheel valve assembly in fluid communication with the chamber, the wheel valve assembly operable between an open position and a closed position and comprising an area having a first flow capacity; providing a variable area valve assembly selectively in fluid communication with the wheel valve assembly, the variable area valve assembly comprising an area formed in a perforation that has a second flow capacity, the second flow capacity being less than the first flow capacity; and selecting a target tire pressure; wherein if a pressure of the pressurized fluid in the chamber is greater than the target tire pressure, then decreasing the pressure of the pressurized fluid in the chamber by directing a flow of pressurized fluid from the wheel assembly through the wheel valve assembly and the variable area valve assembly.