Metal detector apparatus
US4433528A · kind A · utility
23Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1982 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Aug 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is metal detector apparatus for protecting the crop processing unit of a forage harvester. A magnetic field is provided in the area through which crop material is being fed. The field is produced by magnets mounted in a pattern that creates lines of flux at an angle to the general direction of movement of material. A unique pick-up coil arrangement with windings in the magnetic field provides induced signals responsive to the presence of metal objects in the field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.