Illumination – With implement or hand held holder therefor – Hand tool
Patent
1997-08-15
1998-12-08
Yeung, James C.
Illumination
With implement or hand held holder therefor
Hand tool
362120, B25B 2318
Patent
active
058459863
ABSTRACT:
An illuminating device is provided for placement on a shaft of a manual rotary hand tool having a handle at a first end thereof and a workpiece-engaging adaptation at a second end thereof. The device has a body with a central aperture therethrough, at least one light source, an energy source for causing the light source to be illuminated and a switch to selectively connect or disconnect the energy source from the light source. The central aperture has an inner diameter adapted to permit the body to slide freely on the shaft. The at least one light source is aimed in the body to direct the light provided essentially coaxially with the central aperture to the workpiece-engaging shaft end. In preferred embodiments, the device uses at least two light sources. In some embodiments, an annular lens/reflector may be used to enhance the illumination.
REFERENCES:
patent: 1274022 (1918-07-01), Edmundson
patent: 2240596 (1941-05-01), White et al.
patent: 3655960 (1972-04-01), Andree
patent: 3919541 (1975-11-01), Chao
patent: 4480295 (1984-10-01), Shuster
patent: 5124893 (1992-06-01), Jeng
patent: 5309279 (1994-05-01), Halstead
patent: 5510962 (1996-04-01), Hsiao
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