Patent ID: 7096775
Filing Date: 2006-08-29
Classification: B60T

Abstract:
1. A pneumatic booster comprising: a shell body comprising a front shell and a rear shell; a power piston provided in the shell body; a rod extending through the power piston and connecting the front shell and the rear shell; a stud bolt formed on one end of the rod, the stud bolt extending through the shell body to the outside; a support member fitted around the stud bolt, the support member being engaged with the rod and abutted against an inner surface of the shell body; and a seal member provided in an annular groove formed in a surface of the support member, the seal member being adapted to seal a space between the shell body and the stud bolt, the support member having a projection formed on a surface thereof opposite to the surface in which the annular groove is formed, the projection having a protruding length greater than a thickness of the seal member, a distal end of the projection being adapted to abut against the shell body around the seal member when the support member is reversely mounted.