Device for holding a tool bit and selectively transmitting...

Details Device for holding a tool bit and selectively transmitting... Device for holding a tool bit and selectively transmitting...

2000-08-11

2002-04-02

Howell, Daniel W. (Department: 3722)

Chucks or sockets

Socket type

Self-grasping

C081S057400, C279S082000

Reexamination Certificate

active

06364318

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a device for holding a tool bit and selectively transmitting or releasing torque between a torque generating means and the tool bit, especially for use in hand tools when driving screws, or the like, to a preset depth into a workpiece. The device is either used with a non-adjustable preset depth of torque release, or adjustable for any desired preset depth of torque release.


REFERENCES:
patent: 3091473 (1963-05-01), Bilz
patent: 4287923 (1981-09-01), Hornung
patent: 4491444 (1985-01-01), Rumpp et al.
patent: 4736658 (1988-04-01), Jore
patent: 5447397 (1995-09-01), Asano
patent: 5996452 (1999-12-01), Chiang
patent: 6199872 (2001-03-01), Hasan
Copy of packing material from “Standard Dimpler 600”.

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