Cutting by use of rotating axially moving tool – Means to drive tool – Universal or flexible drive connection to rotate tool
Patent
1990-01-29
1991-02-05
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Means to drive tool
Universal or flexible drive connection to rotate tool
408226, 408240, B23B 4700
Patent
active
049900382
ABSTRACT:
A drill bit and chuck for interconnection with the end of a flexible drive shaft which axially and rotationally restrains the drill bit against becoming separated from the chuck during an operation requiring bone drilling, for example. The drill bit drive end has an eccentrically mounted boss with an enlarged head. A collet has an internal wall with an eccentric opening for receiving and locking with the drill bit boss head. The opposite end of the collet is staked onto the flexible shaft.
REFERENCES:
patent: 256050 (1882-04-01), Richmond
patent: 556182 (1896-03-01), Grady
patent: 2025779 (1935-12-01), Roelke
patent: 2188426 (1940-01-01), Blair
patent: 2773693 (1956-12-01), Chittenden
G & H Technology, Inc.
Howell Daniel W.
Netter George J.
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