Li Wen Xu

US Patent:

7213732, May 8, 2007

Filed:

Feb 28, 2005

Appl. No.:

11/068344

Inventors:

Craig A Schell - Baltimore MD, US
Ashok Samuel Baskar - Lutherville MD, US
Paul G Gross - White Marsh MD, US
Charles L Bradenbaugh - Fincastle VA, US
Robert Alan Berry - Fincastle VA, US
David C Tomayko - Ellicott City MD, US
Li Xu - Woodstock MD, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 1/04

US Classification:

227 8, 227142

Abstract:

A contact trip assembly for a power nailer, wherein a contact member includes a curved portion that loops rearwardly towards a handle of the nailer. Also provided is an adjustment assembly including an adjustment plate and a pinion gear, a trigger that is slidably engageable within a housing of the tool, a trigger lock including a ring element, an anti-discharge mechanism including a stop member, and a contact trip lock.

US Patent:

7237986, Jul 3, 2007

Filed:

Aug 9, 2004

Appl. No.:

10/914111

Inventors:

Muniswamappa Anjanappa - Columbia MD, US
Li Xu - Woodstock MD, US
Stephen R. Crosby - Broad Brook CT, US
Gerald Rescigno - Marriottsville MD, US
Russell M Timmons - Lutherville MD, US
Rickey J Thomas - Lineboro MD, US

Assignee:

Black & Decker Inc. - Newark DE
University of Maryland - Baltimore MD

International Classification:

B23B 51/02

US Classification:

408230, 408227

Abstract:

A metal cutting drill bit has a shank portion, a flute portion defining a helix angle and a tip. The tip has a primary cutting edge extending to an outer periphery of the drill bit. The primary cutting edge has a rake face defining a rake angle. The rake angle is different from the helix angle at the tip of the drill bit.

US Patent:

7431103, Oct 7, 2008

Filed:

Apr 4, 2007

Appl. No.:

11/732684

Inventors:

Craig A. Schell - Baltimore MD, US
Ashok Samuel Baskar - Lutherville MD, US
Paul G. Gross - White Marsh MD, US
Robert Alan Berry - Fincastle VA, US
David C. Tomayko - Ellicott City MD, US
Li Xu - Woodstock MD, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 1/04

US Classification:

173170, 173171, 227 8, 227156, 161101, 2003322, 200343

Abstract:

A contact trip assembly for a power nailer, wherein a contact member includes a curved portion that loops rearwardly towards a handle of the nailer. Also provided is an adjustment assembly including an adjustment plate and a pinion gear, a trigger that is slidably engageable within a housing of the tool, a trigger lock including a ring element, an anti-discharge mechanism including a stop member, and a contact trip lock.

US Patent:

7641089, Jan 5, 2010

Filed:

Feb 3, 2005

Appl. No.:

11/050280

Inventors:

Craig A Schell - Baltimore MD, US
Ashok Samuel Baskar - Lutherville MD, US
Paul G Gross - White Marsh MD, US
James J Kenney - Baltimore MD, US
Li Xu - Woodstock MD, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 5/02

US Classification:

227120, 227 8, 227119, 227107

Abstract:

A cordless nailer is provided having a magazine assembly with improved features. A pusher assembly is provided having a simplified and efficient construction. A nail retention feature is provided to allow easy loading and unloading of nails into the nailer.

US Patent:

7845530, Dec 7, 2010

Filed:

Aug 25, 2008

Appl. No.:

12/197471

Inventors:

Craig A. Schell - Baltimore MD, US
Robert Alan Berry - Fincastle VA, US
Ashok Samuel Baskar - Lutherville MD, US
Paul G. Gross - White Marsh MD, US
Charles L. Bradenbaugh - York PA, US
David C. Tomayko - Ellicott City MD, US
Li Xu - Woodstock MD, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 1/04

US Classification:

227 8, 227142

Abstract:

A contact trip assembly for a power nailer, wherein a contact member includes a curved portion that loops rearwardly towards a handle of the nailer. Also provided is an adjustment assembly including an adjustment plate and a pinion gear, a trigger that is slidably engageable within a housing of the tool, a trigger lock including a ring element, an anti-discharge mechanism including a stop member, and a contact trip lock.

US Patent:

8006883, Aug 30, 2011

Filed:

Nov 20, 2009

Appl. No.:

12/622501

Inventors:

Craig A. Schell - Baltimore MD, US
Ashok Samuel Baskar - Lutherville MD, US
Paul G. Gross - White Marsh MD, US
James J. Kenney - Baltimore MD, US
Li Xu - Woodstock MD, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 1/06

US Classification:

227123, 227 8, 227119

Abstract:

A cordless nailer is provided having a nosepiece assembly with improved features. The nosepiece assembly includes a driver retention feature that is provided to retain a drive blade from accidentally escaping the nailer. The nosepiece assembly includes a nosepiece, a nosepiece cover coupled to the nosepiece and moveable between a first closed position and a second open position. The nosepiece cover includes a surface formed on an end thereof, wherein at least one of the nosepiece and nosepiece cover forms a channel. A driver is disposed within the channel, wherein as the nosepiece cover is moved from the first closed position to the second open position, the surface of the nosepiece cover prevents the driver from moving from the channel.