Ribbed waferboard product

Details Ribbed waferboard product Ribbed waferboard product

1987-11-27

1990-02-27

Swisher, Nancy A. B.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428171, 4285371, 428402, B27D 108, D32B 3120

Patent

active

049045172

ABSTRACT:
A ribbed particleboard (waferboard) product having substantially uniform density throughout is provided by forming a mat of wood particles and superimposing on the mat, ribs of such wood particles and then pressing the mat and ribs simultaneously to consolidate the product and provide the ribbed panel having one side substantially planar and the other side ribbed.

REFERENCES:
patent: 3083128 (1963-03-01), Herrington et al.
patent: 3166617 (1965-01-01), Munk
patent: 3793125 (1974-02-01), Kunz
patent: 4061813 (1977-12-01), Geimer et al.
patent: 4084996 (1978-04-01), Wheeler
patent: 4308308 (1981-12-01), Sachso
patent: 4355754 (1982-10-01), Lund et al.
patent: 4616991 (1986-10-01), Bach

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