Yarn heater

Details Yarn heater Yarn heater

1983-11-30

1985-10-29

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 23, 34 68, 34155, F26B 700, F26B 2000

Patent

active

045493618

ABSTRACT:
A stabilizing or secondary heater, for producing a crimped set yarn, comprises a tube having two substantially parallel bores extending therealong, one bore providing a yarn path for the yarn. Air is passed along the other bore, in a direction opposed to the direction of travel of the yarn, so as to be heated, and then through a communicating inlet and passages to impinge upon and be entrained by yarn, the air travelling along the yarn path bore to prevent entrainment of cold ambient air therealong and to ensure good heat transfer to the yarn.

REFERENCES:
patent: 3303548 (1967-02-01), Hills et al.
patent: 3606655 (1971-09-01), Oberlander et al.
patent: 3633256 (1972-01-01), Mallonee
patent: 3720079 (1973-03-01), Katsumata et al.
patent: 3883718 (1975-05-01), Ferment et al.

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