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:
Jan. 13, 2004
Filed:
Feb. 16, 2001
Applicant:
Inventor:
Leo Driessen, Royal Palms, HK;
Assignee:
Black & Decker Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/00 ;
U.S. Cl.
CPC ...
E21B 3/00 ;
Abstract
A coupling mechanism for a power tool is provided on one portion of the tool and comprises a generally cylindrical projection with a side wall having a radial recess extending part-circumferentially along the side wall. A further projection is formed on the side wall which extends in both directions parallel to the axis of the cylindrical projection and in a direction radially outward from the side wall as well.