Chucks or sockets – Accessory or component – Chuck key
Patent
1995-11-16
1997-12-02
Bishop, Steven C.
Chucks or sockets
Accessory or component
Chuck key
279 60, 279902, B23B 3112
Patent
active
056927592
ABSTRACT:
A main body formed generally as a hollow cylinder has an open end sized to receive a chuck head into the main body. An outer shell formed generally as a hollow cylinder is mounted to the main body. A gear drive assembly is mounted to the main body and engaged with the face gear of the chuck. The outer shell is selectively manually engagable with the outer shell via a the gear drive assembly such that rotating the chuck head opens or closes the jaws of the chuck, depending upon the direction of rotation. The outer shell has a free wheeling position in which a person may grasp the outer shell and hold it to guide the drill without causing the chuck jaws to tend to open or close.
REFERENCES:
patent: 4323324 (1982-04-01), Eberhardt
patent: 4844488 (1989-07-01), Flynn
patent: 5197749 (1993-03-01), Moore et al.
Bishop Steven C.
Synergy Medical Products, Inc.
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