Variable-length screwdriver

Details Variable-length screwdriver Variable-length screwdriver

1998-03-23

1999-05-04

Scherbel, David A.

Tools

Handle for tool

Having storage compartment

811774, 81438, B25G 108

Patent

active

058991271

ABSTRACT:
A variable-length screwdriver includes a shank and a handle. The shank has a handle mounting portion. The handle includes a handle base mounted securely on the handle mounting portion and at least one movable block. The handle base includes a front plug section, and a rear socket section disposed rearwardly of the front plug section and having a rear end face formed with a base socket. The front plug section and the base socket have complementary non-circular cross-sections in a direction transverse to the axis of the shank. The movable block includes a front plug portion, a rear socket portion disposed rearwardly of the front plug portion and having a rear end face formed with a block socket, and a shank hole that extends axially through the front plug portion and the rear socket portion. The front plug portion and the block socket have cross-sections in the direction transverse to the axis of the shank that correspond to the cross-sections of the front plug section and the base socket. The movable block is movable from a first position, where the front plug portion extends fittingly and removably into the base socket, to a second position, where the shank extends through the shank hole of the movable block and the front plug section extends fittingly and removably into the block socket.

REFERENCES:
patent: 2022775 (1935-02-01), Holland-Letz
patent: 4399723 (1983-08-01), Marleau
patent: 5499562 (1996-03-01), Feng

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