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:
Sep. 28, 2010

Filed:

Nov. 26, 2008
Applicants:

Karsten Fuhst, Hannover, DE;

Sven Krueger, Niedersachsen, DE;

Inventors:

Karsten Fuhst, Hannover, DE;

Sven Krueger, Niedersachsen, DE;

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 1/20 (2006.01); B23C 3/00 (2006.01); E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The casing cutter disclosed herein is useful for severing downhole tubulars and includes a body, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blades away from the cutting head. In one embodiment, the cutting head includes a cutting member that pivotally extends from the cutting head upon rotation of the cutting head. In another embodiment, cutting members extend from the cutting head due to centrifugal forces associated with rotating the cutting head.


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