Router or cutter bit chuck or extension

Details Router or cutter bit chuck or extension Router or cutter bit chuck or extension

2007-02-06

2007-02-06

Ross, Dana (Department: 3722)

Gear cutting, milling, or planing

Milling

With cutter holder

C409S231000, C279S083000, C279S097000

Reexamination Certificate

active

11026808

ABSTRACT:
An extension for a bit or cutter tool relative to a rotational power source. The extension includes a blind bore receiving the shank of the bit or cutter. The opposite end of the body has structure that can be operatively connected to the source of rotational power. A second bore through the side of the body intersects the first bore. The second bore has two portions. The inner-most portion has a smaller diameter and is internally threaded. The outer portion has a larger diameter and slidably receives a clamping member. Clamping member can be retained by a shoulder bolt and has an end that can enter into the blind bore to clamp the shank in place. Preferably the clamping member is a sleeve having a center bore and a concentric exterior. Another aspect of the invention includes a biasing means that biases the sleeve outward of the bore.

REFERENCES:
patent: 2257169 (1941-09-01), Hopps
patent: 2793041 (1957-05-01), Barbier et al.
patent: 3091474 (1963-05-01), Boutros et al.
patent: 4647052 (1987-03-01), Butikofer
patent: 5096212 (1992-03-01), Walsh
patent: 5348319 (1994-09-01), Stolzer
patent: 6332619 (2001-12-01), DeRosa

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