Godet for heating an advancing yarn

Details Godet for heating an advancing yarn Godet for heating an advancing yarn

1992-04-24

1994-11-08

Reynolds, Bruce A.

Electric heating

Inductive heating

With heat exchange

219469, 219671, 363 48, 363 89, H05B 614

Patent

active

053629450

ABSTRACT:
A godet for heating an advancing yarn including a rotatably mounted godet casing of magnetically conductive material, a stationary primary winding, and a power supply for powering the primary winding at least about 300 Hz. The godet casing is formed of iron and acts as both the secondary winding and core for the primary winding. Accordingly, the godet casing does not need a separate and defined secondary winding, nor does the godet casing include a copper insert or copper coating on the interior of the casing.

REFERENCES:
patent: 3412229 (1960-11-01), Seagrave
patent: 3435171 (1969-03-01), Lohest
patent: 3448233 (1969-06-01), Landis
patent: 3487187 (1969-12-01), Martens et al.
patent: 3508024 (1970-04-01), Cannon
patent: 3562489 (1971-02-01), Lenk
patent: 3581060 (1971-05-01), Bauer et al.
patent: 4369490 (1983-01-01), Blum
patent: 4426564 (1984-01-01), Stiegerwald et al.
patent: 4562389 (1985-12-01), Jundt et al.
patent: 4675487 (1987-06-01), Verkasalo
patent: 4775773 (1988-10-01), Verkasalo
patent: 5027002 (1991-06-01), Thornton
patent: 5233509 (1993-08-01), Ghorbi
Revue Generale de l'Electricite (RGE), Feb. 1988, pp. 55-62.
Electronics Letters, Mar. 1988, pp. 439-440.

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