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:
Aug. 14, 2007
Filed:
Jun. 05, 2003
Mark K. Adam, Houston, TX (US);
Robert S. O'brien, Katy, TX (US);
Michael A. Carmody, Houston, TX (US);
Mathew J. Jabs, Houston, TX (US);
David A. Garcia, Houston, TX (US);
Mark K. Adam, Houston, TX (US);
Robert S. O'Brien, Katy, TX (US);
Michael A. Carmody, Houston, TX (US);
Mathew J. Jabs, Houston, TX (US);
David A. Garcia, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A variety of approaches to reducing or eliminating 'end effect' or the tendency of tubular ends to reduce in diameter after expansion are disclosed. Some involve pre-bending the ends outwardly while others involve removing material internally or/and externally near the ends. Yet other approaches feature weakening the ends in other ways including penetration of the tubular material using openings of various shapes including slots or/and holes where the openings are between the tube ends or where they can extend on one or both ends all the way to the end of the tubular. Inserts that are softer than the tube material can be placed near the ends. If there is an end effect, then the protruding material can be pushed out of the way or broken off.