Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2000-06-29
2001-10-02
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C081S177850
Reexamination Certificate
active
06295896
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a socket wrench having two engaging rods which extend from two opposite sides of the head of the wrench and a release pin extending through the two engaging rods so that the wrench employs two sets of sockets with different sizes.
BACKGROUND OF THE INVENTION
A conventional socket wrench generally includes a head connected to a handle and an engaging rod extends from a side of the head. The engaging rod has a ball embedded in a side thereof so that a socket is securely connected to the engaging rod. A release pin is movably inserted into the engaging rod and has a notch in an outside thereof so that when pushing the release pin to a release position, the ball is received in the notch in the release pin and the force urging the socket disappears so that the socket can be removed from the engaging rod. By operating the release pin, the user may put different sockets on the engaging rod. The engaging rod may have a toothed outer periphery which is engaged with a pawl member in the head of the wrench so that the wrench becomes a ratchet tool. Each socket has an engaging hole for receiving the engaging rod and the size of the engaging hole has many sizes. Therefore, the socket wrench has a fixed engaging rod which can only be cooperated with the sockets having the engaging hole with a fixed size.
The present invention intends to provide a socket wrench that has two engaging rods and a release pin extends through the two engaging rods so that two sets of sockets can be used on the socket wrench.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a wrench socket and comprising a head and a chamber defined in the head. A first engaging rod and a second engaging rod respectively extend through two sides of the head. A first toothed disk is connected to the first engaging rod and a second toothed disk is connected to the second engaging rod. A spring is connected between the first toothed disk and the second toothed disk. A pawl member is pivotally received in the chamber and engaged with the first toothed disk and the second toothed disk. A first ball is movably engaged with a side of the first engaging rod and a second ball is movably engaged with a side of the second engaging rod. A release pin movably inserted through the first engaging rod and the second engaging rod. The release pin has a first notch and a second notch for respectively receiving the first ball and the second ball.
The primary object of the present invention is to provide a socket wrench that can employ two different sets of sockets on two engaging rods respectively extending from two sides of the head of the wrench.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
REFERENCES:
patent: 5761973 (1998-06-01), Tung
patent: 6053077 (2000-04-01), Huang
Baxley Charles E.
Meislin D. S.
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