Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2000-01-18
2001-07-31
Berry, Jr., Willie (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S177100, C081S177700
Reexamination Certificate
active
06267031
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a socket tool, and more particularly, to a tool that includes a sleeve for controlling an engaging member received in a slot in the shank of the tool. The movement of the sleeve decides the position of the engaging member so that a socket can be secured by the engaging member.
BACKGROUND OF THE INVENTION
A conventional socket tool is shown in FIG.
6
and generally includes a shank
90
having a rectangular end on one end of the shank
90
and a bar
900
is connected to the other end of the shank
90
. The rectangular end has a ball
92
embedded in a side thereof so that when a socket
91
is mounted to the rectangular end, the ball
92
urges against an inside of the socket
91
so that the socket
91
is positioned on the rectangular end. The ball
92
is biased by a spring which is received in a recess in the side of the rectangular end. It is difficult to remove the socket
91
from the rectangular end if the spring force so large that the user will take a great effort to overcome the engaging force between the ball
92
and the socket
91
. On the contrary, if the spring force is small, the socket
91
could drop easily.
The present invention intends to provide a tool having a sleeve that controls an engaging member so that the engaging member can be received in a slot by operating the sleeve when the socket is to be mounted to or removed from the tool.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a tool for engaging sockets, comprising a shank and a handle connected to one end of the shank. A slot is defined longitudinally in an outside of the other end of the shank so that an engaging member is slidably received in the slot. The engaging member has a first protrusion and a second protrusion which is to be engaged with a socket. A sleeve is movably mounted to the shank and a shoulder portion extends inward from an inside of the sleeve. A spring is mounted to the shank. The first protrusion is urged by the spring and engaged with the shoulder portion of the sleeve.
The object of the present invention is to provide tool for engaging sockets and a sleeve is mounted to the shank so as to control an engaging member that is movably engaged with sockets.
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: 3424212 (1969-01-01), Kemper
patent: 5690006 (1997-11-01), Pulliam
patent: 6058813 (2000-05-01), Bryant et al.
Berry Jr. Willie
Rosenberg , Klein & Lee
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