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:
Nov. 17, 2020
Filed:
Sep. 20, 2017
Gardner Denver Petroleum Pumps Llc, Tulsa, OK (US);
John Chase, Deer Park, TX (US);
Troy E. Wiegand, Fort Worth, TX (US);
FARDNER DENVER PETROLEUM PUMPS LLC, Tulsa, OK (US);
Abstract
A packing arrangement for a fluid end of a reciprocating pump is received within a packing box and is arranged to form a seal with a plunger. The packing arrangement includes a plurality of separate annular rings arranged in an abutting relationship with one another within the packing box, and a header ring disposed within the plurality of separate annular rings, the header ring including an inner surface that is non-cylindrical and that is arranged to abut the plunger, a high pressure side that is arranged in a female chevron shape, and a low pressure side opposite the high pressure side. A packing nut is engaged with the fluid end and operable to compress the header ring and the plurality of separate annular rings within the packing box.