Material feed control method and apparatus for a wood or brush chipping machine
US5088532A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Jun 5, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27L11/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and mechanism for controlling the material feed of a machine for chipping wood or brush. The machine has a pair of coacting feed rolls which feed material to be chipped into a rotating chipper that is driven by an engine of variable speed. Hydraulic motors for driving each of the feed rolls are actuated when the speed of the engine is at least a selected high level appropriate for efficient chipping. If the material is of a size or composition to load the engine below a selected low level adverse to efficient chipping, the hydraulic motors are interrupted to stop feeding of the material to allow the engine to return to an efficient chipping speed. When the engine has recovered to at least the selected high level, the hydraulic motors are reactivated to again feed material into the chipper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.