G - Physics – 08 – B
Patent
G - Physics
08
B
324/48, 340/124.
G08B 21/00 (2006.01) A01D 75/18 (2006.01) G01V 3/08 (2006.01)
Patent
CA 1194580
METAL DETECTOR APPARATUS ABSTRACT OF THE DISCLOSURE 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.
430933
Smart & Biggar
Sperry Corporation
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