US PATENT SUBCLASS 28 / 219
.~ Surface modification of running length

Current as of: June, 1999
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28 /   HD   TEXTILES: MANUFACTURING

217  DF  THREAD FINISHING {4}
219.~ Surface modification of running length {5}
220  DF  .~.~> Diverse finishing operations {1}
222  DF  .~.~> Clearing {4}
240  DF  .~.~> Stretching apparatus {4}
247  DF  .~.~> Texturing, e.g., crimping {10}
282  DF  .~.~> Tow opening or spreading {1}

DEFINITION

Classification: 28/219

(under subclass 217) Method or apparatus for altering a characteristic or the physical form of a continuously moving or traveling expanse of thread while it is in transit from a source of supply to a take-up or collection site.

(1) Note. This subclass is the repository for individual or unitary thread finishing operations as, for example, the polishing of a running length of thread by brushing, ironing, or rubbing to smooth fibrils into the surface thereof, the brushing or rubbing of a running length of thread to produce upstanding fibrils on the surface thereof, the assimilating or splicing of a running length of thread without the use of adhesives or fusion, the condensing or shrinking of a running length of thread without the production of coils, crimps, crinkles or like linear distentions, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

173+, for the surface modification of a running length of a plurality of threads in the form of a warp sheet.