US PATENT SUBCLASS 57 / 3.5-- .~.~ With core substitution

US PATENT SUBCLASS 57 / 3.5
.~.~ With core substitution

Current as of: June, 1999
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57 /	HD	TEXTILES: SPINNING, TWISTING, AND TWINING

1 R	DF	APPARATUS AND PROCESSES {45}
3	DF	.~ Covering or wrapping {10}
3.5		.~.~ With core substitution

DEFINITION

Classification: 57/3.5

(under subclass 3) Devices including means for opening a twisted or twined strand having a core, removing the core, inserting a new core, and closing the remaining strands about such new core.

(1) Note. The strand structure is usually untwisted for removal of the old core and retwisted after insertion of the new core, in a continuous operation, in which case the total twisting operation consists of the imposition of a temporary or false twist.

SEE OR SEARCH THIS CLASS, SUBCLASS:

328+, for false twisters combined with drawing apparatus.

332+, for false twist devices per se.