The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2003
Filed:
Dec. 26, 2001
Anthony David Friend, Darien, IL (US);
Steven Louis Arianoutsos, Washington, IL (US);
Bart James Ferrero, Chillicothe, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A wiper seal for a hydraulic component is provided. The wiper seal includes a support member with a first leg that has an inner surface, a first end, and a second end and that extends substantially parallel to a reference axis. The support member further includes a second leg that has an outer surface extending substantially perpendicular to the reference axis from the first end of the first leg. The wiper seal also includes a body portion that defines an opening therethrough and includes an outer peripheral surface configured to receive the inner surface of the first leg of the support member. A first radial face extends substantially coplanar with the outer surface of the second leg and a second radial face extends generally perpendicular to the reference axis from the second end of the first leg of the support member. The second radial face includes a cutout defining a first cavity. An inner surface defines a first sealing lip adjacent the first radial face. A projection extends from the inner surface to a second sealing lip. The second sealing lip is separated from the first sealing lip by a second cavity.