Allen N Smith

US Patent:

6517297, Feb 11, 2003

Filed:

Feb 9, 2001

Appl. No.:

09/779640

Inventors:

John R. Cochran - Baltimore MD
Michael L. Obanion - Westminster MD
Allen P. Smith - Baltimore MD

Assignee:

Black Decker Inc. - Newark DE

International Classification:

B23B 31107

US Classification:

408226, 279 30, 279 75, 279904, 408240

Abstract:

A chuck includes a pair of jaws which are located within an axial opening of a body for receipt of a shank of a bit therein. A roller is located in a slot of the body and can be pressed into the shank of the bit to clamp the shank between the jaws and the roller. A sleeve is biased and structured to normally urge the roller into the shank-pressing position, and is movable relative to the body to facilitate removal of the shank from the chuck.

US Patent:

62243047, May 1, 2001

Filed:

Mar 9, 1999

Appl. No.:

9/265275

Inventors:

Allen P. Smith - Baltimore MD
Dale K. Wheeler - Fallston MD

Assignee:

Black & Decker, Inc. - Newark DE

International Classification:

B23C 120
B23B 4514

US Classification:

409182

Abstract:

A bit attaching arrangement for a power tool has a collet nut threadably engaging a rotatably driven shaft of the power tool. The collet nut has a plurality of slots positioned on an outer peripheral surface. A first gear is disposed on the shaft so that rotation of the first gear causes rotation of the shaft. An actuating member having a second gear associated therewith is attached to the housing of the power tool. The actuating member also has a slot-engaging extension associated therewith. The actuating member is positionable between a first position and a second position. In the first position, the second gear engages the first gear and the extension engages one of the slots of the collet nut such that rotation of the actuating member results in rotation of the shaft while maintaining the collet nut at a generally fixed rotational location. In a second position, the first and second gears do not engage one another and the extension does not engage any of the slots of the collet nut such that the shaft can be freely rotated during operation of the power tool.