Combination small-scale tub grinder and wood chipper
US4773601A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2201/066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mini-sized hammer mill apparatus is adaptable for both rotatable tub feeding of hay, fodder, feed grains, and the like, as well as for chute feeding of wood and debris for comminution. A number of features optimize the mini size for effective, reliable, and smooth operation by small horsepower tractors, including: side feed tangentially out of a cylindrical hopper under a rotatable tub into the periphery of a large diameter, narrow rotor, or through a chute with tensioned roller feeder; radially adjustable grinding and metering finger/grate bar combination, secondary grinding fingers and breaker bar, self-sharpening hook-like pointed hammers, rotatable tub mounting structure, and enhanced energy dissipating, down-sized cyclone with reverse-louvered pressure dissipators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.