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. 23, 2024
Filed:
Sep. 09, 2021
Applicant:
Waukesha Bearings Corporation, Waukesha, WI (US);
Inventors:
Jie Zhou, Pearland, TX (US);
David Donald Johnson, III, Louisville, KY (US);
Assignee:
Waukesha Bearings Corporation, Waukesha, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 39/04 (2006.01); F16J 15/56 (2006.01); F04B 39/00 (2006.01); F16J 15/20 (2006.01);
U.S. Cl.
CPC ...
F04B 39/041 (2013.01); F04B 39/0022 (2013.01); F16J 15/20 (2013.01); F16J 15/56 (2013.01);
Abstract
A packing case assembly includes a packing cup configured to be disposed along a piston rod of a reciprocating gas compressor system; and a packing ring set disposed in the packing cup, the packing ring set including multiple rings. The packing ring set is configured to be disposed circumferentially around a portion of the length of the piston rod. A backup packing ring of the packing ring set includes a first region including a polymer, and a second region including a metal.