Universal chuck adaptor

Details Universal chuck adaptor Universal chuck adaptor

1979-06-14

1980-09-30

Kundrat, Andrew V.

Bridges

403 24, 403287, B25B 1700

Patent

active

042249694

ABSTRACT:
The present invention is a universal chuck adaptor which is used in combination with a yankee screwdriver in order to mechanically couple a drill chuck to the yankee screwdriver which includes a handle. The yankee screwdriver also includes a ratchet mechanism which is mechanically coupled to the handle and a release mechanism which is mechanically coupled to the ratchet mechanism. The universal chuck adaptor includes an integral member which has a cylindrical portion at its center, a right-handed, externally threaded cylindrical portion at one end with a left-handed, internally threaded bore and a truncated cylindrical portion with a notch. The truncated cylindrical portion is adapted to be slideably received within the release mechanism and secured thereby. The drill chuck is threadedly coupled to the right-handed, externally threaded cylindrical portion. A left-handed threaded screw securely coupled the drill chuck to the universal chuck adaptor through the left-handed, internally threaded bore.

REFERENCES:
patent: 942572 (1909-12-01), Leland et al.
patent: 2874985 (1959-02-01), March
patent: 3843143 (1974-10-01), Laxson
patent: 3869741 (1975-03-01), Logan
patent: 3904301 (1975-09-01), Schroeder

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