Illumination – With implement or hand held holder therefor – Hand tool
Reexamination Certificate
1999-10-12
2001-08-28
Husar, Stephen (Department: 2875)
Illumination
With implement or hand held holder therefor
Hand tool
C362S578000
Reexamination Certificate
active
06280047
ABSTRACT:
BACKGROUND OF THE INVENTION
A screwdriver whose bit is replaceable and furthermore the illumination function is provided.
The screwdrivers stated in the Taiwanese Utility Nos. 82219601 and 87204744, as well as the U.S.A. Des. 407, 290 reveal that the bits are replaceable and the illumination function is provided. However, the screwdriver in the U.S.A. patent case is nothing new but new appearance. As for the screwdrivers in these two Taiwanese patents, the configuration of replaceable bits are same as existing technology, and there is no improvement in design.
SUMMARY OF THE INVENTION
The screwdriver is composed of an extractor, and a gripping rod that connects to the extractor for transmitting torque to the bit. When gripping rod's connecting joint has a lighting source component, which is controlled by a power supply switch, and then the extractor (made of a material that allows light to penetrate) could offer illumination function.
One of the purposes is to provide a screwdriver that has a simple configuration and replaceable bit.
One of the purposes is to provide a bit replaceable type of screwdriver that can offer illumination function.
REFERENCES:
patent: 5713656 (1998-02-01), Lin
patent: 6050698 (2000-04-01), Lee
patent: 6199998 (2001-03-01), Hsiao
Bacon & Thomas PLLC
Husar Stephen
LandOfFree
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