Extension bar with illumination device

Details Extension bar with illumination device Extension bar with illumination device

2008-12-08

2010-11-16

Shakeri, Hadi (Department: 3727)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C362S119000, C362S120000

Reexamination Certificate

active

07832311

ABSTRACT:
An extension bar includes an elongate body, a conductive unit, a control unit and an illumination unit. The conductive unit includes a non-conductive first piece, a non-conductive second piece and a conductive third piece which is separated from the body. A conductive bead is engaged with one end of the third piece. The control unit includes a first control member and a second control member which has an opposite conductivity to the first control member. The first control member is mounted to the body and includes a first recess and a second recess. The second control member is securely engaged with the first recess and in contact with the exterior of the body. The illumination unit includes an illumination part and a power supply unit which contacts between the illumination part and the third piece.

REFERENCES:
patent: 5477434 (1995-12-01), Reed
patent: 6183103 (2001-02-01), Hillinger
patent: 6776500 (2004-08-01), Chen
patent: 7401938 (2008-07-01), Cheng
patent: 7434952 (2008-10-01), Wang
patent: 7604368 (2009-10-01), Cheng

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