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:
May. 10, 2005
Filed:
Oct. 18, 2002
Applicants:
Iqbal Singh, Charlotte, NC (US);
Harley Schuerman, Wilber, NE (US);
Inventors:
Iqbal Singh, Charlotte, NC (US);
Harley Schuerman, Wilber, NE (US);
Assignee:
Irwin Industrial Tool Company, Huntersville, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
B23B051/02 ;
U.S. Cl.
CPC ...
Abstract
A drill bit is disclosed having a cutting portion having a plurality of axially aligned, graduated cutting members. Each of the members has cutting edges defined by a single slot extending therethrough. A tip portion at one end of the cutting portion defines at least a pair of cutouts therein, wherein one of the cutouts is aligned with the slot.