Conical cutting element

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of the conical cutting element showing our new design; and,

FIG. 2 is a side view of the conical cutting element of FIG. 1.

The broken line showing of a lower portion of a cutting element is included for the purpose of illustrating environmental structure and forms no part of the claimed design.

Claims

The ornamental design for a conical cutting element, as shown and described.

Referenced Cited
U.S. Patent Documents
5823632 October 20, 1998 Burkett
6270165 August 7, 2001 Peay
6375272 April 23, 2002 Ojanen
RE38151 June 24, 2003 Penkunas et al.
6685273 February 3, 2004 Sollami
6692083 February 17, 2004 Latham
6709065 March 23, 2004 Peay et al.
6739327 May 25, 2004 Sollami
7172256 February 6, 2007 Sleep et al.
7204560 April 17, 2007 Mercier et al.
D566137 April 8, 2008 Hall et al.
20020092210 July 18, 2002 Sollami
20030209366 November 13, 2003 McAlvain
20040026132 February 12, 2004 Hall et al.
20040026983 February 12, 2004 McAlvain
20040065484 April 8, 2004 McAlvain
Patent History
Patent number: D640291
Type: Grant
Filed: Oct 11, 2010
Date of Patent: Jun 21, 2011
Assignee: The Charles Machine Works, Inc. (Perry, OK)
Inventors: Vernon T. Stellman (Stillwater, OK), L. Shane Ingram (Perry, OK), Michael C. Walgren (Lake Havasu City, AZ)
Primary Examiner: Mark Goodwin
Attorney: Tomlinson Rust McKinstry Grable
Application Number: 29/376,708