Comminuting apparatus
US6527209B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C21/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A shredding apparatus comprises a plurality of rotatable rolls, each one of the rolls being rotatable around an axis of rotation in a first direction of rotation or a second direction of rotation. Each roll further has a plurality of angled replaceable teeth, which are arranged in at least one first set of teeth arranged in a first helical line across an outer surface of each roll, circumferentially spaced apart a first angle and facing the first direction of rotation. Further, at least one second set of teeth is arranged in a second helical line across the outer face of each roll, circumferentially spaced apart the first angle and facing the second direction of rotation. The first helical line and the second helical line of teeth are arranged to axially (in the longitudinal direction of the rolls) move material to be shredded when the rolls are rotated. Further, the shredding apparatus has a frame structure with roll holding means, for journalling the plurality of rolls in a spaced apart relationship to form a bed of rolls. The frame structure is surrounded by an enclosure provided with a charging opening for material to be shredded and a discharging opening for shredded material.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.