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:
Apr. 29, 2008
Filed:
Jul. 07, 2006
Applicants:
Calvin Stowe, Bellaire, TX (US);
James Mcnicol, The Woodlands, TX (US);
Inventors:
Calvin Stowe, Bellaire, TX (US);
James McNicol, The Woodlands, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
Improved cutter design as well as an improved design for downhole cutters, such as mandrel cutters and rotary cutter mills. A cutter is described with a rectangular, rounded 'lozenge' shape. The cutter presents a cross-sectional cutting area having a pair of curvilinear end sections and an elongated central section. Preferably, the overall length of the cutter is 1.5 times the width. The cutter may also include a raised cutter edge for chip breaking during cutting.