Tools – Wrench – screwdriver – or driver therefor – Spanner
Reexamination Certificate
2003-01-21
2004-11-23
Wilson, Lee D. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Spanner
C081S111000, C081S901000
Reexamination Certificate
active
06820522
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hook screw driver with a tool-coupling arrangement. In particular, the present invention relates to a hook screw driver that has a tool-coupling arrangement for coupling with a tool for driving fasteners in addition to the function of reliably clamping a hook screw.
2. Description of the Related Art
U.S. Pat. No. 6,026,715 discloses a hook screw driver having a holding section and an end section. The holding portion has a first part integral with the end section and a second part. Each part has an inner side that includes a compartment defined in a first end thereof. A soft holding member is received in the compartment and made of a highly deformable, highly frictional material for securely holding a hook portion of a hook screw. A second end of each part has a threading defined in an outer side thereof. A retainer ring with an inner threading is moved forward along a longitudinal direction to threadedly engage with the threading on each part after the hook portion of a hook screw is placed on one of the soft holding members. Thus, the hook portion of the hook screw is held by the hook screw driver. However, it was found that the retainer ring could not move forward to tightly clamp the hook portion of a hook screw having a relatively large thickness. Further, the second part can be opened for receiving/removing the hook screw only when the retainer ring is completely disengaged from the threading on each part, which is inconvenient to the user. Further, the hook screw driver provides a single function of clamping a hook screw. Thus, the user has to carry additional tools such as screwdrivers when tightening/loosening fasteners such as bolts, nuts, and screws.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a hook screw driver that has a tool-coupling arrangement for coupling with a tool for tightening/loosening fasteners such as bolts, nuts, and screws.
A hook screw driver in accordance with the present invention includes a first body and a second body having an end connected to an end of the first body. The other end of the first body and the other end of the second body together clamp a hook screw. A tool-coupling member is provided on the hook screw driver for coupling with an end of a tool for tightening/loosening fasteners. In some cases, the tool-coupling member can be directly used to tighten/loosen a fastener.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5566596 (1996-10-01), Lin
patent: 6026715 (2000-02-01), Hu
patent: 6085617 (2000-07-01), Hu
patent: 6101905 (2000-08-01), Hu
patent: 6186036 (2001-02-01), Huang
patent: 6237451 (2001-05-01), Wei
patent: 6378701 (2002-04-01), Kuo
patent: 6508156 (2003-01-01), Wei
patent: 6524035 (2003-02-01), Robison
patent: 6679142 (2004-01-01), Lin
Kamrath Alan D.
Nikolai & Mersereau , P.A.
Wilson Lee D.
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