Patent ID: 8650945

Claim:
A valve stem for a tire pressure monitoring system sensor, the valve stem comprising: a valve stem body including an attachment end connectable to the tire pressure monitoring system sensor, an opposite air transfer end, and a longitudinal axis; a grommet attached to the valve stem body, the grommet including a first flange and a second flange, each flange extending radially outward from the valve stem body, the first flange disposed between the second flange and the attachment end of the valve stem body, and the second flange having an outer peripheral edge; and a retention member attached to the valve stem body and comprising a base member and a standoff extending from the base member, the standoff including a proximal first end attached to the base member and an opposite distal second end, the standoff being selectively moveable relative to the outer peripheral edge of the second flange between a first position in which the distal second end is disposed at a first radial distance from the longitudinal axis of the valve stem body, and a second position in which the standoff is disposed at a second radial distance from the longitudinal axis of the valve stem body, the first radial distance being greater than the second radial distance, and the outer peripheral edge of the second flange is disposed at a maximum third radial distance from the longitudinal axis that is less than the first radial distance.