Illumination – With implement or hand held holder therefor – Hand tool
Reexamination Certificate
2000-02-01
2001-09-04
Husar, Stephen (Department: 2875)
Illumination
With implement or hand held holder therefor
Hand tool
C362S120000, C362S253000
Reexamination Certificate
active
06283606
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a ratchet wrench in which an illuminating device is installed in a pad block of the ratchet wrench to enable a user to work in a working site with insufficient illumination.
FIG. 6
shows a conventional ratchet wrench including two clamping boards
91
and a pad block
92
. Two ends of each clamping board
91
are respectively formed with two holes
93
. A rotary member
94
is disposed in the hole
93
and then the rotary member
94
and the pad block
92
are clamped and fixed by the clamping boards
91
. The rotary member
94
is fitted with a work piece such as a nut (not shown) to tighten or untighten the work piece. In order to properly fit the wrench with the work piece, the pad block
92
must have a certain height.
Such wrench can be easily manufactured and the clamping boards
91
can be made of alloy with sufficient strength. However, such wrench can be hardly used in a working site with insufficient illumination.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a ratchet wrench with illuminating device. By means of the pad block sandwiched between the clamping boards, the ratchet wrench can be easily manufactured and applied to those situations necessitating great torque and working sites with insufficient illumination. Therefore, the ratchet wrench is more competitive on market. When it is necessary to replace the cell, a user only needs to push the cell cover in a specific direction so as to open or close the cell cover. Therefore, the cell can be easily replaced.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 4253134 (1981-02-01), Barnaly
patent: 4324158 (1982-04-01), Le Roy
patent: 5477434 (1995-12-01), Reed
patent: 5897198 (1999-04-01), Hsieh
patent: 6033081 (2000-05-01), Huang
patent: 6089729 (2000-07-01), Chang
patent: 6106133 (2000-08-01), Lee
patent: 6116746 (2000-09-01), Hsu
patent: 6116747 (2000-09-01), Grawmeyer et al.
patent: 6126295 (2000-10-01), Hillinger
patent: 6135607 (2000-10-01), Cook
patent: 6135608 (2000-10-01), Lin
Huang Ping-Chung
Wei Hung Yin
Husar Stephen
Rosenberg , Klein & Lee
Ton Anabel
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