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:
Jan. 18, 1977
Filed:
Mar. 28, 1975
Richard H Mott, Sioux Falls, SD (US);
DU-AL Manufacturing Company, Sioux Falls, SD (US);
Abstract
A hydraulic cylinder assembly for farm machinery or the like including a tubular elongate cylinder with a smooth inner cylindrical wall and a fluid inlet at a first end with a hollow piston rod slidable therein having an annular piston secured at a first end and slidable within the cylinder wall with the piston carrying axially spaced wear rings and plastic annular sealing rings therebetween and a T-shaped backup ring therebetween, a guide and seal retainer within the cylinder at the second end thereof for the second end of the piston rod held in place by a retainer nut threaded onto the cylinder and carrying a wiper ring in a groove and holding a seal between the guide ring and retainer nut.