Gear cutting – milling – or planing – Milling – Randomly manipulated – work supported – or work following device
Patent
1980-02-29
1982-02-23
Bilinsky, Z. R.
Gear cutting, milling, or planing
Milling
Randomly manipulated, work supported, or work following device
144134D, 144136C, 408112, B23B 4502, B23C 120
Patent
active
043166857
ABSTRACT:
A plunge type router is disclosed which includes a base housing having a work engaging surface and an upper portion within which a driving motor is supportingly mounted for reciprocable movement with respect thereto. A pair of extension coil springs are provided extending between a first pair of projections provided on the upper portion of the base housing and a second pair of projections secured to the motor housing which operate to continuously bias the driving motor into a retracted position. The extension springs are arranged in the form of loops positioned on opposite sides of the router and are concealed and protected by a pair of handles secured to the motor housing which handles are movable therewith.
REFERENCES:
patent: 3791260 (1974-02-01), Ambler et al.
patent: 4041997 (1977-08-01), Selfe
patent: 4102370 (1978-07-01), Vess
Bilinsky Z. R.
Black & Decker Inc.
Murphy Edward D.
Ottesen Walter
Weinstein Harold
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