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:
Sep. 08, 2009
Filed:
Feb. 25, 2005
Eric J. Curley, Houston, TX (US);
Mark K. Adam, Houston, TX (US);
Leopoldo S. Gomez, Humble, TX (US);
Robert S. O'brien, Katy, TX (US);
John L. Baugh, College Station, TX (US);
Eric J. Curley, Houston, TX (US);
Mark K. Adam, Houston, TX (US);
Leopoldo S. Gomez, Humble, TX (US);
Robert S. O'Brien, Katy, TX (US);
John L. Baugh, College Station, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An expandable tubular pin and box connection is described having a feature of trapping the pin nose after preferably deforming the pin nose plastically in an outward direction away from the longitudinal axis of the connection. The box end is held away from the pin wall before expansion so that its tendency to curl inwardly upon expansion causes it to bend against the pin wall for sealing with it. The thread profile is also optimized to reduce flank separation as a result of expansion.