Metal detector arrangement
US7472532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Feb 1, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D75/187
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A forage harvester comprises a feeder for feeding harvested crop material to the processing mechanism along a crop feed path It is equipped with a foreign object detector for signaling the presence of foreign objects in said harvested crop. The detector comprises a sensor having a detection field extending into at least a portion of said path. The sensor is substantially symmetric with respect to a direction transverse to the crop feed path and the detector further comprises a restriction system distinct from said sensor, making said detection field asymmetric with respect to said transverse direction. As a result, the detector becomes less sensitive to noise caused by the other components of the harvester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.