US PATENT SUBCLASS 28 / 226
.~.~.~ Clamping, severing or shearing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


28 /   HD   TEXTILES: MANUFACTURING

217  DF  THREAD FINISHING {4}
219  DF  .~ Surface modification of running length {5}
222  DF  .~.~ Clearing {4}
226.~.~.~ Clamping, severing or shearing {5}
227  DF  .~.~.~.~> By electronic or pneumatic detection of knot or slub
228  DF  .~.~.~.~> By feeler engagement with knot or slub
229  DF  .~.~.~.~> By knot or slub biased wedging member {1}
231  DF  .~.~.~.~> By knot or slub deflecting slot
232  DF  .~.~.~.~> By opposed, gap defining surfaces, e.g., stripping guide {3}

DEFINITION

Classification: 28/226

(under subclass 222) Method or apparatus wherein (a) the presence of a knot or slub of an undesirable character either directly or indirectly effects parting of the thread either by retention of the knot or slub or an adjacent portion of the thread to break the thread at or about the point of retention or by slicing through the thread with a cutting member, or (b) the thread passes against or through a rigid stripping member which cuts or scrapes away any undesirable protruding material.

(1) Note. Since there is no structural difference between knot or slub clearing guides and stripping guides used to clear fibril from thread or yarn and since fibril stripping guides will inherently act to clear a knot or slub too large to pass therethrough, both type of guides will be found herein.

SEE OR SEARCH CLASS

72, Metal Deforming,

16, for a control means energized in response to activator stimulated by a condition sensor which is responsive to lateral dimension, e.g., thickness.

83, Cutting,

371, for a cutting operation controlled by detector means responsive to work indicium or irregularity. 425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

141, for control means responsive to or actuated by means sensing a condition, e.g., product thickness, and subclass 142 wherein the control means controlled is a severing

element.