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. 26, 1988
Filed:
Sep. 05, 1986
Applicant:
Inventors:
Wilhelm E Benker, Huntsville, TX (US);
James H Holt, Jr, Conroe, TX (US);
Max A Threadgill, Walker County, TX (US);
Assignee:
Hughes Tool Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
1661175 ; 166242 ; 228174 ; 295221 ;
Abstract
A side pocket mandrel for use in well tubing. The mandrel has a body, having an open bore extending through the body in alignment with the well tubing, and a side pocket offset from the bore. A valve receptacle is formed in the side pocket of the mandrel. The body of the mandrel has a plurality of forged indentations. These indentations are axially spaced above the valve receptacle and extend into the side pocket for a distance sufficient to keep well tools from entering the valve receptacle. The indentations may also taper away from the valve receptacle.