.~> By direct application of vacuum or pneumatic pressure
DEFINITION
Classification: 264/86
(under the class definition) Processes wherein a liquid component or liquid vehicle for a moldable material is removed or separated from the material through a foraminous shaping surface.
(1) Note. The shaping surface for this subclass may have holes extending there-through as in the case of a perforated sheet, or the body of the mold may be absorbent as in the case of a porous plaster mold which will absorb water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91+, for processes for forming articles by uniting particles carried in a gas stream.
SEE OR SEARCH CLASS
162, Paper Making and Fiber Liberation, appropriate subclasses, for forming fibrous felted products from slurries by draining the liquid carrier through a foraminous mold surface.
210, Liquid Purification or Separation, appropriate subclasses for processes for dewatering slurries to produce a formless mass of material.
