Method and device for the molding of wood fiber board

Details Method and device for the molding of wood fiber board Method and device for the molding of wood fiber board

2009-12-14

2011-11-22

Gupta, Yogendra (Department: 1744)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S322000, C425S398000

Reexamination Certificate

active

08062569

ABSTRACT:
The invention relates to a method and device with which it is possible to arrange complicated shapes with considerable differences in height in wood fiber board, and in particular but not exclusively so called MDF (Medium Density Fiberboard). The deformation of the wood fiber board which can be achieved with the invention is known in the art as extrusion, wherein a considerable plastic deformation takes place accompanied by flow and stretch of the material.

REFERENCES:
patent: 4753713 (1988-06-01), Gunderson
patent: 4842668 (1989-06-01), Monetti
patent: 4913639 (1990-04-01), Wheeler
patent: 5183622 (1993-02-01), Persson
patent: 5887402 (1999-03-01), Ruggie et al.
patent: 7632448 (2009-12-01), Frankefort et al.

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