Drill chuck attachments

Details Drill chuck attachments Drill chuck attachments

1983-09-28

1986-03-11

Weidenfeld, Gil

Chucks or sockets

Socket type

Loose jaws

279 1K, 279 64, 408241R, B23B 3106

Patent

active

045751080

ABSTRACT:
Attachments for self-locking or conventional key-operated chucks on hand drills make possible simplified operation thereof. An externally threaded ring carried by the drill surrounding the chuck is internally beveled at its outer end and mates with a threaded nut. A split ring with wedge-shaped cross section is positioned between the nut and the beveled end of the ring so as to clamp the chuck to the ring when the nut is tightened. A cap made of an elastomer attached over the nose of the chuck has in its end a slot or crossed slots which grip a drill bit when it is thrust therethrough.

REFERENCES:
patent: 3795406 (1974-03-01), Rohm
patent: 4162080 (1979-07-01), Buck
patent: 4277074 (1981-07-01), Kilberis
patent: 4317578 (1982-03-01), Welch
patent: 4395170 (1983-07-01), Clarey
patent: 4460296 (1984-07-01), Silvertson, Sr.

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