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. 26, 2002
Filed:
Dec. 20, 2000
Applicant:
Inventors:
Donald L. Jones, Conroe, TX (US);
David J. McWhorter, Magnolia, TX (US);
Richard M. Ward, Conroe, TX (US);
Assignee:
Varco I/P, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/312 ; E21B 1/900 ; E21B 3/308 ;
U.S. Cl.
CPC ...
E21B 3/312 ; E21B 1/900 ; E21B 3/308 ;
Abstract
A stripper/packer includes first and second packing elements, which are interchangeable to alleviate inventory concerns. The upper actuating hydraulic piston is the same diameter as the lower piston, which allows the operator to utilize the same amount of pressure to maintain a seal during transition between packing elements. Both packing elements are separately actuated from the lower side allowing the wellbore pressure to assist the seal.
Jones, Donald. (2002). Stripper/packer (U.S. Patent No. 6484808). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6484808
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile