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:
Apr. 21, 1981
Filed:
Oct. 30, 1979
Arthur J Williams, Youngstown, OH (US);
Commercial Shearing, Inc., Youngstown, OH (US);
Abstract
A low friction drag seal is provided for use between a housing and a linearly movable cylindrical member subject to fluid pressure in the form of an annular chamber surrounding the cylindrical member in one of the housing and cylindrical member, a generally right triangular cross section elastomer ring in said annular chamber surrounding said cylindrical member and in contact with a relatively movable surface on one of the cylinder and housing at an apex of said elastomer ring and a generally rigid back up ring having an inclined surface extending away from said relatively movable surface and in contact with the hypotenuse of the generally triangular member.