Portable electric router

Details Portable electric router Portable electric router

1994-01-10

1994-12-27

Bray, W. Donald

Woodworking

Shaping machine

Grooving machine

144134R, 310 63, 310 74, 318161, 409182, B27C 510

Patent

active

053756371

ABSTRACT:
A compact, and lightweight portable electric router providing sufficient cutting efficiency. The router includes rotary components such as an armature of a drive motor, a motor shaft, a cooling fan connected to the motor shaft and a chuck for fixing thereto a cutting bit. An outer peripheral portion of the cooling fan is provided with a weight or a flywheel member to increase resultant inertial moment of the rotary component, to thus increase rotating power of the cutting bit.

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patent: 4459087 (1984-07-01), Barge
patent: 4716648 (1988-01-01), Nel
patent: 4757221 (1988-07-01), Kurihashi et al.
patent: 4836755 (1989-06-01), Nitsche et al.
patent: 5073736 (1991-12-01), Gschwender et al.
patent: 5241230 (1993-08-01), Tanaka et al.

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