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:
May. 11, 1976
Filed:
Mar. 28, 1975
Applicant:
Inventor:
Richard Eugene Irby, Irving, TX (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277-2 ; 74 182 ;
Abstract
A system for maintaining a constant biasing pressure upon the sealing members of a rod pump stuffing box utilizes a hydraulic system under a constant preset pressure to bias the seal member into sealing engagement against the pump polished rod. Means are also disclosed for continuously monitoring the amount of wear undergone by the seal means and for actuating a warning light or shutting down the pumping unit when the seal means has undergone extensive wear or when leakage from the stuffing box has reached a predetermined level.