Conical cutting element
Stellman , et al. June 21, 2
U.S. patent number D640,291 [Application Number D/376,708] was granted by the patent office on 2011-06-21 for conical cutting element. This patent grant is currently assigned to The Charles Machine Works, Inc.. Invention is credited to L. Shane Ingram, Vernon T. Stellman, Michael C. Walgren.
| United States Patent | D640,291 |
| Stellman , et al. | June 21, 2011 |
Conical cutting element
Claims
CLAIM The ornamental design for a conical cutting element, as shown and described.
| Inventors: | Stellman; Vernon T. (Stillwater, OK), Ingram; L. Shane (Perry, OK), Walgren; Michael C. (Lake Havasu City, AZ) |
|---|---|
| Assignee: | The Charles Machine Works, Inc.
(Perry, OK) |
| Appl. No.: | D/376,708 |
| Filed: | October 11, 2010 |
| Current U.S. Class: | D15/21; D15/29 |
| Current International Class: | 1503 |
| Field of Search: | ;D15/21,29 ;299/112T,112R,79.1,113,107,39.3 ;175/426,427,435,414 ;37/452,453,465,450,446,94 ;172/540,548,555,567,568,120 |
References Cited [Referenced By]
U.S. Patent Documents
| 5823632 | October 1998 | Burkett |
| 6270165 | August 2001 | Peay |
| 6375272 | April 2002 | Ojanen |
| RE38151 | June 2003 | Penkunas et al. |
| 6685273 | February 2004 | Sollami |
| 6692083 | February 2004 | Latham |
| 6709065 | March 2004 | Peay et al. |
| 6739327 | May 2004 | Sollami |
| 7172256 | February 2007 | Sleep et al. |
| 7204560 | April 2007 | Mercier et al. |
| D566137 | April 2008 | Hall et al. |
| 2002/0092210 | July 2002 | Sollami |
| 2003/0209366 | November 2003 | McAlvain |
| 2004/0026132 | February 2004 | Hall et al. |
| 2004/0026983 | February 2004 | McAlvain |
| 2004/0065484 | April 2004 | McAlvain |
Attorney, Agent or Firm: Tomlinson Rust McKinstry Grable
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.
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