Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
1999-12-23
2001-03-20
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C192S044000
Reexamination Certificate
active
06202513
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a socket wrench. More particularly, the present invention relates to a socket wrench which is operated and assembled easily.
A conventional socket wrench is a ratchet socket wrench. When the conventional socket wrench is operated, a dead angle will be produced so that it is not easy to operated the conventional socket wrench.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a socket wrench which can be assembled easily.
Another object of the present invention is to provide a socket wrench which can be operated easily.
Accordingly, a socket wrench comprises a handle and a box head. The box head has a rotating seat, a recess, and three concave points. The rotating seat has four protruded blocks, four control grooves defined by the protruded blocks, and a center hole. A rotating shaft is inserted in the center hole of the rotating seat. The rotating shaft has a first post and a second post. An adjusting plate is inserted in the recess of the box head. The adjusting plate has two arm plates and a protrusion. The arm plates are inserted in one of the control grooves. The protrusion of the adjusting plate is inserted in one of the concave points of the box head. Two rolling cylinders and an elastic corrugation plate are disposed between the arm plates. The elastic corrugation plate is located between the rolling cylinders. An annular casing covers a first face of the box head. The annular casing has a round hole receiving the first post. An annular cover covers a second face of the box head. The annular cover has a circular hole receiving the second post.
REFERENCES:
patent: 2139650 (1938-12-01), Anderson et al.
patent: 4603606 (1986-08-01), Headon
patent: 5199329 (1993-04-01), Hsu
patent: 6053077 (2000-04-01), Huang
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