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:
Aug. 26, 2003
Filed:
Apr. 03, 2001
Applicant:
Inventor:
Michael L. Mowins, Gloucester, MA (US);
Assignee:
Phillips Screw Company, Wakefield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 5/102 ; B23B 2/308 ;
U.S. Cl.
CPC ...
B23B 5/102 ; B23B 2/308 ;
Abstract
A drill bit has a chuck engaging shank portion having a geometric cross-sectional shape; a plurality of projections formed on at least a part of at least one of said surfaces; said projections (a) varying in height across said surface, and (b) engaging an inner surface of a chuck to prevent slippage of said bit in said chuck.