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. 05, 1996
Filed:
May. 25, 1995
Applicant:
Inventors:
J Scott Reynolds, Aberdeen, GB;
Robert L Sloan, Katy, TX (US);
Darrell P Salisbury, Sugar Land, TX (US);
Assignee:
Well-Flow Technologies, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166173 ; 1510416 ; 151042 ; 166176 ; 166312 ;
Abstract
A cleaning tool for tubular members has a pattern of scratching elements arranged on the outside of an elongate member such as a mandrel. The mandrel is coated with a rigid or resilient polymeric material or a combination of both. The scratching elements are affixed in the polymeric material in an arrangement to allow fluid flow around the mandrel.