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:
Aug. 28, 2012

Filed:

Aug. 19, 2009
Applicants:

Richard Murray Whiddon, Katy, TX (US);

Terry Dale Jones, Tomball, TX (US);

Inventors:

Richard Murray Whiddon, Katy, TX (US);

Terry Dale Jones, Tomball, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/04 (2006.01); B21D 39/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A geometrically optimized expansion cone for radially expanding a tubular member. In some embodiments, the expansion cone includes an annular body having an outer surface. The outer surface includes a linear surface having a constant diameter, a curvilinear surface extending from the linear surface, a recessed surface having a diameter less than the diameter of the curvilinear surface, and a chamfer between the recessed surface and the curvilinear surface. The diameter of the linear surface is substantially equal to an inner diameter of the tubular member after expansion, while the chamfer has a maximum diameter less than an inner diameter of the tubular member prior to expansion. The curvilinear surface has a diameter defined by a radius of curvature which is tangent to the chamfer at the maximum diameter and tangent to the linear surface.


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