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:
May. 28, 1985
Filed:
Sep. 19, 1983
Applicant:
Inventor:
William S Butler, Burleson, TX (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277153 ; 277 58 ; 277125 ; 2771 / ;
Abstract
An improved piston shaft seal assembly and seal arrangement therein for end-of-car hydraulic cushioning units including an improved seal retainer, an improved first oil scraper abutting the improved seal retainer, an improved reinforced oil seal abutting the improved first seal retainer and a second improved oil seal abutting the improved reinforced oil seal. Optionally, the improved piston shaft seal assembly may include an annular spacer.