Patent ID: 8661886

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 and an opposite air transfer end; and a grommet attached to the valve stem body, the grommet including a first flange and 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, the first flange including an outer peripheral edge tapering radially outward from a first region arranged a first radial distance from a longitudinal axis of the valve stem body to a second region arranged a second radial distance from the longitudinal axis of the valve stem body, wherein the second radial distance is greater than the first radial distance and the first region is arranged axially between the second region and the attachment end of the valve stem body.