(under subclass 304) Method or apparatus including the removal or separation of discrete fibers, aggregates, or
clumps thereof from a fibrous accumulation in the form of a batt, mass, or web for projection into the gaseous stream.
(1) Note. The liberation of fibers (a) from their natural state, i.e, from seed; (b) from the surface of a serrated or toothed cylinder on which the fibers repose in web form, e.g., a carding or combing cylinder; or (c) from a batt or mat thereof as by a eater, lickerin, picker, or the like is included herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
.3+, for liberating fibers from a continuous filament or yarn by staplizing; and subclasses .51 and .56 wherein the liberating or staplizing is combined with another operation, inclusive of web formation.
1+, for liberating fibers by mechanical means from the parts with which they have been produced in nature.
80+, for liberation or separation of fibers by blades or teeth and cleaning.
98+, for liberation or separation of fibers and carding. SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
62.4, for the formation of a nonwoven web with formation or liberation of fibers combined with uniting of the fibers of the web to each other and uniting of the lamina thus formed to itself or another lamina.
162, Paper Making and Fiber Liberation, appropriate subclasses for fiber liberation or separation involving some chemical treatment whether or not combined with mechanical treatment.
241, Solid Material Comminution or Disintegration,
4, and 28 for processes of comminuting fibrous mineral material and wood and similar natural fibrous vegetable material, respectively; and subclasses 31+ for apparatus for comminuting fibrous material including other treatments combined therewith where such combinations are not otherwise provided for.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
115+, for methods of forming articles by uniting randomly associated particles where the particles either are formed or are liberated from a mass of previously formed particles; and subclass 143 for the extrusion and staplizing of a filament during the formation of a nonwoven web.
425, Plastic Article or Earthenware Shaping or Treating: Apparatus,
82.1, for air felting type shaping means with fiber liberating means combined with an operation of this class (425).
