Screwdriver with control portion for selectively retaining...

Details Screwdriver with control portion for selectively retaining... Screwdriver with control portion for selectively retaining...

1999-10-29

2001-05-01

Meislin, D.S. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

C279S079000, C081S439000

Reexamination Certificate

active

06223633

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to a hand tool, and more particularly to a screwdriver.
BACKGROUND OF THE INVENTION
There are a variety of conventional screwdrivers, which are provided with various tips to use on a variety of screw heads. As a result, a worker has to carry a number of screwdrivers. This hampers the movement of the worker at the work site.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a screwdriver, which comprises a handle having a control portion for fastening detachably a tip in conjunction with two retaining members and a position confining block.
The foregoing objective, feature, and function of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 4581961 (1986-04-01), Lai
patent: 5964132 (1999-10-01), Chen

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