Apparatus for producing small particles from high consistency wood pulp
US5810973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1993 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Sep 21, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/153
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus produces elongate multi-fiber particles of extremely small size to facilitate substantially complete penetration of high consistency pulp fibers by ozone when exposed thereto. A housing is provided having first and second ends and a substantially smooth interior housing surface. A means is provided for introducing high consistency wood pulp into the housing. A source of ozone gas bleaches the high consistency pulp within the housing. A pin rotor is rotatably mounted within the housing, and includes a plurality of pins, each pin having a pin tip. A means is provided means for limiting the build up of high consistency pulp fiber accretions on the pin tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.