Hand tool aided screwdriver

Details Hand tool aided screwdriver Hand tool aided screwdriver

2006-06-06

2006-06-06

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S063100, C081S060000

Reexamination Certificate

active

07055410

ABSTRACT:
A hand tool aided screwdriver related to a ratchet screwdriver that allows operation in changed direction includes a handle, a ratchet holder, a socket, and a chock. The ratchet holder is inserted into a chamber in the handle. The socket is inserted into the ratchet holder. The ratchet holder is provided with an outer ratchet to engage with an inner ratchet in the chock. The chock having a hexagon outer surface to be held by an open end of a spanner to apply force together with the screwdriver in mounting or dismounting a work piece.

REFERENCES:
patent: 2513509 (1950-07-01), Morts
patent: 4235269 (1980-11-01), Kraus
patent: 5642649 (1997-07-01), Hsieh
patent: 6330843 (2001-12-01), Lin
patent: 6363819 (2002-04-01), Li
patent: 6389932 (2002-05-01), Ho
patent: 6450067 (2002-09-01), Liao
patent: 6647831 (2003-11-01), Hu
patent: 6732613 (2004-05-01), Hsieh
patent: 6817458 (2004-11-01), Gauthier
patent: 6902047 (2005-06-01), Ting
patent: 6928906 (2005-08-01), Marks

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