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:
Jul. 12, 1983
Filed:
Dec. 07, 1981
Applicant:
Inventor:
Robert C Paulson, Muskogee, OK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166153 ; 166177 ; 166369 ; 4175 / ; 92255 ;
Abstract
An improved swabbing cup construction for use on the mandrel of a swabbing tool for clearing liquids and particulate matter, and initiating the flow of oil, from an oil well pipe. The improved cup construction is manually adjustable on the mandrel to compensate for wear of the cup to greatly increase the life of the cup and to substantially facilitate the swabbing procedure for an oil well pipe. The method comprises the steps of observing the wear of the swabbing cup and of manually increasing the outer diameter of the swabbing cup while it is on the mandrel and during swabbing operations of said oil well pipe.