Illumination – With implement or hand held holder therefor – Hand tool
Reexamination Certificate
2000-01-18
2001-03-06
Sember, Thomas M. (Department: 2875)
Illumination
With implement or hand held holder therefor
Hand tool
C362S120000
Reexamination Certificate
active
06196695
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is related to an improvement in the structure of a screwdriver.
2. Description of the Prior Art
The conventional screwdriver (see
FIG. 1
) is not provided with any lighting means. In a dim environment, the user has to rely solely upon the available light or use a separate lighting device, which is very inconvenient. If the user has to use a separate lighting device, such as a flashlight, in addition to the screwdriver in performing a job, it is very inconvenient. Furthermore, in a working environment that is not very dim or small, if all the lights are turned on, it will be a waste of energy. Hence, a screwdriver with a light (see
FIG. 2
) has been developed to obviate this drawback. However, such a screwdriver has no extra space for receiving bits thereby causing another problem in use.
Therefore, it is an object of the present invention to provide an improvement in the structure of a screwdriver which can obviate and mitigate the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
This invention is related to an improvement in the structure of a screwdriver.
According to a preferred embodiment of the present invention, screwdriver includes a tubular handle having an open end provided with external threads, another end of the tubular handle having a hole in which is fitted a rubber pad, a flashlight having an end provided with a pushbutton switch, the flashlight being arranged within the tubular handle with the pushbutton switch in contact with the rubber pad, a collar having a first end and a second end, the first end being threadedly engaged with the external threads of the tubular handle, a transparent cylindrical seat snugly fitted in the second end of the collar and formed with a plurality of recesses for receiving bits and a tubular rod extending from a central portion of the seat, the tubular rod having an outer end formed with a hexagonal recess configured to receive any one of the bits, a magnetic telescopic rod fitted within the tubular rod and having a lower end snugly engaged with the tubular rod, and a cover engaged with the seat to prevent the bits from dropping out thereof.
It is the primary object of the present invention to provide an improved screwdriver which can be easily operated.
It is another object of the present invention to provide an improved screwdriver which is practical in use.
It is still another object of the present invention to provide an improved screwdriver which can be rapidly assembled.
It is still another object of the present invention to provide an improved screwdriver which has many different uses.
It is a further object of the present invention to provide an improved screwdriver which is simple in construction.
The foregoing objects and summary provide only a brief introduction to the present invention. To filly appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 5873648 (1999-02-01), Shiao
patent: 6022121 (2000-02-01), Lin
patent: 6050698 (2000-02-01), Lee
patent: 6086217 (2000-07-01), Jau
patent: 6095659 (2000-08-01), Hsu
A & J
Sember Thomas M.
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