Article molded from fibrous material

Details Article molded from fibrous material Article molded from fibrous material

1977-12-19

1979-10-16

Silverman, Stanley S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428182, 428326, B32B 330

Patent

active

041713966

ABSTRACT:
A shaped decorative article comprising a rigid body of a densified mixture of particulate material and a binder, the body having a plurality of elongated ridges projecting from the outer surface thereof which are separated from each other by valleys, whereas the inner surface of the body forms a plurality of elongated cavities respectively aligned in longitudinal direction with the ridges, each of the ridges has a pair of side faces including an angle with each other and terminating in a tip of rounded cross section constituting the edge of the respective ridge and each of the cavities having an inner end adjacent the tip of the respective ridge. The wall thickness of the body gradually increases from the tip of each ridge to the valleys adjacent thereto to reach its maximum at the center of each valley, and the density of the body gradually decreases from the tip of each ridge toward the adjacent valleys.

REFERENCES:
patent: 2288072 (1942-06-01), Collins
patent: 2704268 (1955-03-01), Brown
patent: 3048537 (1962-08-01), Pall et al.
patent: 3120466 (1964-02-01), Bojanowski
patent: 3180911 (1965-04-01), Muller
patent: 3264380 (1966-08-01), Parsons
patent: 3443817 (1969-05-01), Reiling
patent: 3621092 (1971-11-01), Hofer
patent: 3661688 (1972-05-01), Wheeler
patent: 4061813 (1977-12-01), Geimer et al.

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