Chip and method for the production of wood pulp
US6267164A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1998 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Oct 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24124
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chip and method for producing wood pulp. First, second and third pairs of substantially parallel sides are formed by cleaving, cutting and cutting, respectively. The sides of the second pair of sides are cut by a first knife so as to be spaced between about 2 to 8 mm. The sides of the third pair of sides are cut by a second knife so as to be spaced a greater distance apart than the first pair. The sides of the first pair of sides are cleaved substantially along the grain direction so as to be spaced also a greater distance apart than the sides of the first pair. The sides of the third pair of sides are cut so as to be substantially perpendicular to the sides of the first pair of sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.