Non-slip drill chuck

Details Non-slip drill chuck Non-slip drill chuck

1991-09-25

1992-12-29

Bishop, Steven C.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

81 16, 279147, B23B 3112, B25B 1344

Patent

active

051745879

ABSTRACT:
A non-slip drill chuck apparatus is provided on a hand drill. The drill chuck has a shell with bevel gear teeth for use with drill motors and the like, a stationary collar which extends from the shell and a plurality of adjustable jaws that extends from the stationary collar. The apparatus consists of a chuck key mechanism for engagement with the collar and the shell for non-inadvertently disengagable tightening the jaws of the drill chuck tighter about a drill bit to prevent slippage of the drill bit, so as not to cause damage to the drill bit and the drill chuck itself.

REFERENCES:
patent: 1038755 (1912-09-01), Hubbell
patent: 1489976 (1924-04-01), Brown
patent: 3190665 (1965-06-01), Sztricsko
patent: 4123195 (1978-10-01), Purviance
patent: 4615653 (1986-10-01), Watson
patent: 4999018 (1991-03-01), Wenz, Jr.

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