Hand tool with extendable handle

Details Hand tool with extendable handle Hand tool with extendable handle

2007-05-30

2008-10-14

Meislin, D. S (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C403S109300, C403S377000, C016S429000

Reexamination Certificate

active

07434495

ABSTRACT:
A hand tool includes a first part including a head and a shank. Three first holes are defined in the shank and each receive a first stop and a first spring therein. A second hole is defined in shank and located at an axis different from an axis of the first holes, a second stop and a second spring are received in the second hole. A second part is movably mounted to the shank and includes a positioning hole with which one of the first stop is removably engaged. The second stop is slidably engaged with a groove in the second part. A third part is mounted to the second part and includes button which is pushed to remove the first stop from the position hole so that the second part and the third part can be moved relative to the shank.

REFERENCES:
patent: 2438633 (1948-03-01), Condor
patent: 3227015 (1966-01-01), Tremblay
patent: 5109737 (1992-05-01), Raber
patent: 6408721 (2002-06-01), Lee
patent: 6761094 (2004-07-01), Tobako
patent: 7066676 (2006-06-01), Tsai
patent: 2005/0123344 (2005-06-01), Bensussan
patent: 2007/0012346 (2007-01-01), Choi

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