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.

Date of Patent:
Jul. 03, 2001

Filed:

Feb. 23, 2000
Applicant:
Inventors:

Gregory Richard Nazzai, Kingwood, TX (US);

Timothy John Frank, Houston, TX (US);

Robert Joe Coon, Missouri City, TX (US);

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 1/710 ; E21B 2/300 ; E21B 4/310 ;
U.S. Cl.
CPC ...
E21B 1/710 ; E21B 2/300 ; E21B 4/310 ;
Abstract

An internal junction stabilizer is formed with an outer dimension less than the internal bore of a junction to be strengthened The stabilizer is inserted into the junction, and expanded into tight fit. Multiple stabilizers may be expanded one inside another to form a laminate for reinforcement in high pressure applications. Each layer of metal expanded to the next outermost section provides an additive effective on the mechanical properties of the junction. Expansion can be performed in a number of ways, including mechanical, hydraulic, explosive methods. Use of directional or selective swaging can be used to further effect a fit. Further embodiments of the invention include the use of sealing compounds, elastomers, and plastics to effect a hydraulic seal and fill gaps for strength purposes.


Find Patent Forward Citations

Nazzai, Gregory. (2001). Internal junction reinforcement and method of use (U.S. Patent No. 6253846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6253846

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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