Processes and apparatus for severing filaments of indefinite length, before such filaments are incorporated into a fabric, to produce fibers approximating in length the staple fibers of natural origin.
(1) Note. Although this and the indented subclasses do not include inventions relating to the severing of continuous filaments after they have been incorporated into a fabric, it does include those directed to the breaking of filaments united in a yarn or other twisted bundle.
(2) Note. Mere cutting, i.e., mechanical shearing or abrading of a filament or bundle of filaments unaccompanied by any textile handling or treating operation is not within the scope of this or the indented subclasses. See Lines With Other Classes in the class definition of this class.
(3) Note. For classification in this or the indented subclasses, the severing operation must be claimed significantly. That is, some detail of the severing
apparatus or process must be set forth in a patent claim, so that the claim expresses a more specific embodiment of this subject matter than that imparted by the mere recitation of such terms as "stapilizing", "breaking" or "severing".
SEE OR SEARCH CLASS
30, Cutlery, appropriate subclasses for cutter elements, per se, and for hand cutting implements(e.g., razors).
57, Textiles: Spinning, Twisting, and Twining,
252+, for staplized yarns and for yarns fabricated at least partly from stapled fibers. 65, Glass Manufacturing,
454+, and 470+ for processes of forming glass or slag fibers or filaments and especially subclasses 476+ for glass or slag fiber attenuation; subclasses 484+ for fiber forming apparatus, especially subclasses 535+ for attenuation and severing.
99, Foods and Beverages: Apparatus,
635+, for cutting or removing the end section from a fruit or vegetable.
131, Tobacco,
46, 63, 64.1+, 65, 83.1, and 91 for processes and apparatus directed to cigar and cigarette end trimming or cutting in combination with other cigar or cigarette making operations, and subclasses 117 and 118 for methods of and means for trimming or cutting associated with the formation of a compressed tobacco charge.
164, Metal Founding, appropriate subclasses for apparatus and processes for cutting continuous filamentary material by a mechanical shearing operation.
241, Solid Material Comminution or Disintegration, appropriate subclasses for methods and means for material comminution including animal and vegetable.
425, Plastic Article or Earthenware Shaping or Treating: Apparatus,
6+, for means for making particulate material (e.g., fibers, etc.) directly from liquid or molten material, subclass 66 for filament forming and stretching means, subclasses 67+ for filament forming means including an immersed shaping orifice discharging directly into a liquid bath or shower means, subclasses 72+ a filament spinner combined into a downstream gaseous treating means, and subclasses 461+ for a filament spinning nozzle, per se.
428, Stock Material or Miscellaneous Articles, 357+, for a structurally defined or coated fiber or filament and especially subclasses 359+ for staple length fiber, or a mass thereof.
451, Abrading, for apparatus for abrading continuous filamentary material, noting particularly
182+, 183, and 319+; and subclasses 28+ for a method of abrading continuous filamentary material.
