Search coil assembly for metal detectors

Details Search coil assembly for metal detectors Search coil assembly for metal detectors

1988-06-14

1989-09-26

Kozma, Thomas J.

Inductor devices

With electric and/or magnetic shielding means

324239, 336 92, 336 96, 336208, 26427219, H01F 1500

Patent

active

048703818

ABSTRACT:
A coil assembly for a metal detector of the type used for detecting metal fragments in foodstuffs and pharmaceuticals, the coil assembly comprising a frame of non-metallic, the frame having an aperture therethrough for the passage of material undergoing inspection, coils of electrically conductive strands wound upon the frame, plastic material adhered to the frame and coils, less the aperture portion of the frame, and a coating of metal adhered to the plastic material to encase the plastic material in a metal layer.

REFERENCES:
patent: 2237254 (1941-04-01), Broekhuysen
patent: 3278455 (1966-10-01), Feather
patent: 3361962 (1968-01-01), Albrecht
patent: 3368175 (1968-02-01), Giegerich et al.
patent: 4683454 (1987-07-01), Vollmer et al.

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