Apparatus for heating yarn

Details Apparatus for heating yarn Apparatus for heating yarn

1988-03-02

1989-11-14

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219469, H05B 342

Patent

active

048809616

ABSTRACT:
A yarn heating element wherein fixed elongated core having a heater therein serves as a support for a sleeve rotatably mounted to and telescoped over the core. The space between the core and sleeve can be varied along their lengths for controlling heat radiated from the core to the shell to control the temperature profile along the length of the shell. Varying the winding density of the heater can serve the same purpose.

REFERENCES:
patent: 2622182 (1952-12-01), Forzley
patent: 2958921 (1960-11-01), Gilchrist
patent: 3257939 (1966-06-01), McDermott
patent: 3311691 (1967-03-01), Good
patent: 3518822 (1970-07-01), McCard
patent: 4535230 (1985-08-01), Brieu

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