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:
Sep. 23, 1986
Filed:
Oct. 17, 1984
Gary W Knox, Langley, OK (US);
Other;
Abstract
A self-aligning and self-lubricating stuffing box for oil well polish rods, pump rods and the like, and comprising a housing disposed around the outer periphery of the rod and having an internal cooling chamber surrounding the outer periphery of the rod for retaining a fluid reservoir in engagement with the rod for an efficient lubrication thereof, at least one valved internal passageway provided in the housing for automatically directing the fluid to and/or from the cooling chamber as required during the operation of the polish rod during a well fluid production process, at least two longitudinally spaced bushing members disposed in the housing and in engagement with the outer periphery of the rod for assuring an efficient axial alignment between the housing and the rod during the reciprocation of the rod, and a swivel connection for overcoming any misalignment between the pump jack and the pumping 'T' during the well production operation.