.~ Foraminous forming mold for discrete articles (pulp molding) {9}
383
.~.~ Differing areas of porosity or of suction on single mold surface (including masking)
DEFINITION
Classification: 162/383
(under subclass 382) Apparatus in which the foraminous die has separate areas adapted to pass therethrough different amounts of suspending fluid.
(1) Note. In this subclass may be found for example, apparatus in which a portion of the foraminous die is masked off to prevent accretion of pulp in those areas or to vary the thickness of the deposited layer of pulp. Also in this subclass may be found apparatus in which different degrees of suction are applied to various areas of the mold to increase or decrease selectively the amount of deposition of pulp on the mold surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109+, for processes producing a nonuniform, irregular or configured sheet or web.
334, and 353, for apparatus for producing an endless web and having masking means.
