Screwdriving apparatus for use in driving screws joined together

Details Screwdriving apparatus for use in driving screws joined together Screwdriving apparatus for use in driving screws joined together

1993-02-17

1994-08-16

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

227136, B25B 2306

Patent

active

053376358

ABSTRACT:
A driver for fasteners, and particularly, a power screwdriver is described which is adapted to drive screws having different diameters. The power screwdriver has a removable guide tube and a complementary drive shaft. The guide tube is sized to the diameter of one size of screw. The complementary removable drive shaft is sized to be guided in the guide shaft, reciprocally movable therein to engage and guide a screw located in the guide tube. By removal of one pair of guide tube and complementary drive shaft and replacement with another pair of guide tube and complementary drive shaft adapted for use with screws having a different head diameter, the driver is adapted for driving screws of different head diameters.

REFERENCES:
patent: 4018254 (1977-04-01), DeCaro
patent: 4146071 (1979-03-01), Mueller et al.
patent: 4625597 (1986-12-01), Cast
Quik Drive "Screwdrivers Attachment" for Model Nos. 3301 and 3303, Feb. 1992.

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