Abstract: A papermaking mold for producing a pulp molded article comprising a core of prescribed shape which has a plurality of holes for fluid passage interconnecting the outside and the inside and is made of an elastically deformable material and a fluid-permeable material which covers the outer surface of the core, the fluid-permeable material being capable of forming passages for a fluid in its thickness direction even when pressed and deformed.
Abstract: An improved apparatus for dry forming adhesive coated wood fibers in an airstream in a particular mold apparatus. The invention permits the manufacture of a mat of differing cross-sectional shapes but of uniform density. The invention includes the advantageous steps of final curing of the mat off of the main molding apparatus, thus achieving efficiencies in use.
Type:
Grant
Filed:
March 25, 1991
Date of Patent:
March 30, 1993
Assignee:
The United States of America as represented by the Secretary of Agriculture
Inventors:
Dennis E. Gunderson, Roland L. Gleisner
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