US PATENT SUBCLASS 28 / 224
.~.~.~.~ Gap or slot type

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

217  DF  THREAD FINISHING {4}
219  DF  .~ Surface modification of running length {5}
222  DF  .~.~ Clearing {4}
223  DF  .~.~.~ Combined clearing operations {1}
224.~.~.~.~ Gap or slot type

DEFINITION

Classification: 28/224

(under subclass 223) Method or apparatus wherein each of the clearing operations involve transit of the thread through an opening of fixed predetermined dimension defined by the exterior boundaries of an element or elements for removal of projecting surface impurities by rubbing or scraping engagement therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

232+, for clearing of thread by a unitary gap or slot type device.