US PATENT SUBCLASS 19 / .43
.~.~ Differential effect


Current as of: June, 1999
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19 /   HD   TEXTILES: FIBER PREPARATION

.3  DF  STAPILIZING {5}
.35  DF  .~ Tension breaking {4}
.43.~.~ Differential effect


DEFINITION

Classification: 19/.43

(under subclass .35) Processes and apparatus in which either (1) a variegated starting material is submitted to the stapilizing operation or (2) the operation is so carried out that the stapilizing effect varies either laterally (i.e., from filament to filament of the substantially parallel filaments making up the stapilized bundle) or longitudinally (i.e., along the length of the stapilized fibrous product in the direction of the opposed breaking forces).

(1) Note. The mere random staggering of fiber ends inherently produced by the severing operation, and which is necessary to the production or preservation of a continuous top or yarn, is not sufficient variation or differential effect to meet the above definition of this subclass.

(2) Note. Variations in starting material may be based on any of the characteristics of textile strands, such as color, texture, chemical composition, denier or count, breaking strength, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

144+, and 145+, for fiber blending methods and means, per se.