Patent ID: 6609716
Filing Date: 2003-08-26
Classification: F16J

Abstract:
A wiper seal for a hydraulic component, comprising:a support member including a first leg having an inner surface, a first end, and a second end and extending substantially parallel to a reference axis and a second leg having an outer surface extending substantially perpendicular to the reference axis from the first end of the first leg; and a body portion defining an opening therethrough and including: an outermost peripheral surface configured to receive the inner surface of the first leg of the support member; a first radial face extending substantially coplanar with the outer surface of the second leg; a second radial face extending generally perpendicular to the reference axis from the second end of the first leg of the support member and including a cutout defining a first cavity; an inner surface defining a first sealing lip at the connection point between the inner surface and the first radial face, said first sealing lip adapted to scrape dirt or debris from the surface of the rod; and a projection extending from the inner surface to a second sealing lip adapted to remove fluid from the surface of the rod, the second sealing lip separated from the first sealing lip by a second cavity, the projection including at least one opening extending from the first cavity to the second cavity to allow a flow of fluid between the first and second cavities.