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:
Feb. 18, 1986
Filed:
May. 15, 1985
Henry A Traub, Pacific Palisades, CA (US);
W. S. Shamban & Company, Santa Monica, CA (US);
Abstract
An improved low pressure seal ring configuration, which is adapted for use in combination with a high pressure seal ring to provide a seal assembly which is capable of sealing first and second relatively reciprocating surfaces at both high and low pressures. The low pressure seal ring is designed to be located between the high pressure seal ring and the wall of the groove in which the seal assembly is mounted. The low pressure seal ring exerts pressure against the high pressure seal to provide desired high pressured sealing. The low pressure seal also includes a seal lip which has a tip that extends over the edge of the high pressure seal to provide low pressure sealing. The low pressure seal lip includes a bottom surface which is V-shaped and terminates in an apex. The outer portion of the seal lip includes an annular lobe having a second annular apex. The seal lip is designed to provide increased localized annular sealing pressures due to the apexes along with reduced lateral movement of the seal lip during seal assembly use in order to reduce abrasion and wear of the seal lip.