Tool for capture, control and manipulation of threaded fasteners

Details Tool for capture, control and manipulation of threaded fasteners Tool for capture, control and manipulation of threaded fasteners

1982-06-07

1984-06-26

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

B25B 2308

Patent

active

044558988

ABSTRACT:
In combination with its own bit, or with a screwdriver, a barrel made of a stiffly flexible material, preferably a specified plastic, slides over the bit or screwdriver shaft, and provides at one end a gripping head for screw heads, and at the other a quick-lock clutch operated by a twist of a rotary collar. The gripping head can not only grip surely a screw head placed in it, as for starting, but can locate by feel an installed screw in a hidden recess difficult of access, and facilitate one-handed withdrawal of the screw, with sure retention of the head. The device can be made as a screwstarter, with a set of sizes and bits for all sizes and type of screws, or as barrels adaptable to the full range of available and existing screwdrivers. A split-barrel variant can be assembled with the use of threaded collars, one of which is the clutch collar and the other the gripping head, over the shaft of a screwdriver which has a widened blade, square shaft, or for some other reason requires a special adaptation. The device also acts as a safety device to guard against cuts and electrical shock.

REFERENCES:
patent: 796154 (1905-08-01), Schulze
patent: 1300275 (1919-04-01), Johnson
patent: 1772040 (1930-08-01), Dunlea
patent: 2796100 (1957-06-01), Dierker
patent: 4190091 (1980-02-01), Colognori

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