Comminution process to produce precision wood particles of uniform size and shape with disrupted grain structure from wood chips
US8507093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jan 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
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 (LC) as measured substantially parallel to the grain, an average width dimension (WC) as measured normal to LC and aligned cross grain, and an average height dimension (HC) as measured normal to WC and LC, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel, wherein the cutting discs have a uniform thickness (TD), and wherein at least one of LC, WC, and HC is greater than TD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.