Extension element for use with wrench-type hand tools

Details Extension element for use with wrench-type hand tools Extension element for use with wrench-type hand tools

1990-11-20

1991-07-23

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

B25G 104

Patent

active

050333372

ABSTRACT:
An extension unit is used in conjunction with wrench-type hand tools, such as socket and ratchet wrenches. One form of the unit includes a handle and an extension arm that has a plurality of spring-loaded balls thereon at distances that are spaced apart from each other along the longitudinal axis of the extension arm by increments that are uniform. A further extension element is attached to the handle and a bayonet coupling is used to properly align the further extension element with respect to the handle. A second form of the unit includes a spring loaded catch and spring loaded anchors.

REFERENCES:
patent: 4344340 (1982-08-01), Erickson
patent: 4367663 (1983-01-01), Merics
patent: 4581958 (1986-04-01), Shull
patent: 4620460 (1986-11-01), Gonzales
patent: 4770073 (1988-09-01), Palm

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