Title: Surgical drill chuck

Abstract: A quick release drill chuck for surgical and dental instruments, particularly high speed drills powered by rotary air motors, is disclosed. The chuck engages the shafts of drills or burs and is actuated without the use of additional tools while providing a self-locking feature to insure against inadvertent loosening of the chuck.

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Inventors: Bent, John H. (Costa Mesa, CA, US)

Application Number: 906858
Filing Date: 1978-05-17
Publication_date: 1980-04-22
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Primary Class(es): 279/30 279/46.7, 279/75, 279/904, 433/127
Other Classes:
US Patent Ref:

1174997	Mar, 1916	Lackner	279/74.
3674281	Jul, 1972	Hedrick	279/30.

Other Refs: 40692

Aug, 1932	FR

Primary Examiner: Bilinsky, Z. R.
Assistant Examiner:
Attorney: Alexander; Cruzan, Sell; Donald M., Okubo; Edward T.