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Title: Multipass comminution process to produce precision wood particles of uniform size and shape with disrupted grain structure from wood chips

A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (L.sub.C) as measured substantially parallel to the grain, an average width dimension (W.sub.C) as measured normal to L.sub.C and aligned cross grain, and an average height dimension (H.sub.C) as measured normal to W.sub.C and L.sub.C, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel.
Inventors:
;
Issue Date:
OSTI Identifier:
1133042
Assignee:
Forst Concepts, LLC (Auburn, WA) CHO
Patent Number(s):
8,734,947
Application Number:
13/917,824
Contract Number:
SC0002291
Resource Relation:
Patent File Date: 2013 Jun 14
Research Org:
Forest Concepts, LLC, Auburn, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Paper Shredder
patent, March 1974

Rotating disc splitter
patent, December 1982

Longitudinal tenderizing of veneer
patent, December 1985

Method and apparatus for producing engineered wood flakes, wafers or strands
patent, July 1987

Wood chip cracking apparatus
patent, September 1990

Machine for reducing the size of material
patent, July 1991

Multi-pass roll crusher
patent, September 1991

Process for making a product serving as a cultivation support
patent, February 1992

Treatment of wood chips
patent, April 1993

Pellitizer methods and apparatus
patent, June 1993

Safety device for chip conditioning device
patent, November 1993

Apparatus for composite wood product manufacturing
patent, April 1996

Wood chip strand splitter
July 1996

Wood chip optimizer
patent, December 1998

Continuous crumbing machine for recycling rubber tires
patent, July 1999

Method and apparatus for reducing oversized wood chips
patent, June 2003

Engineered wood-based mulch product
patent, May 2004

Pulp flaker
patent, November 2007

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