Fastener driving device with multiple bits

Details Fastener driving device with multiple bits Fastener driving device with multiple bits

1980-07-03

1982-05-04

Kunin, Stephen G.

Bridges

81440, 81450, B25G 108

Patent

active

043277900

ABSTRACT:
A screwdriver comprises a handle having four screwdriver blades pivotally connected adjacent one end. The blades may be pivoted from a stored position alongside the handle to an operative position in advance of the handle. A locking device locks the blade in an operative position and comprises a disc rotatably mounted on the one end of the handle with a slot to engage the blade. The slot has a radial portion and a circumferential position so that the blade first enters the radial portion and the disc is then rotated to hold the blade in the circumferential portion.

REFERENCES:
patent: 1128165 (1915-02-01), Mace
patent: 1616300 (1927-02-01), Bido
patent: 2726695 (1955-12-01), Malm
patent: 3186009 (1965-06-01), Simmons
patent: 3315295 (1967-04-01), Jeter et al.

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