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US 4,784,759 AGranted
Magnetic separation machine
OwnerEldon G. Elliottinventor
Life of this patent
Estimating the term…
Abstract
An apparatus (10,10') for handling articles by magnetic attraction includes a cylindrical casing (12,12') of nonmagnetic material having upper (22,22') and lower (24,24') ports. A rotatable helix (32,32') is disposed within the casing (12,12') between the ports (22,22',24,24'). Magnetic elements (42,42') are disposed outside of the casing (12,12') for directing a magnetic field through the casing (12,12') and into the casing as the ramp (32,32') rotates. The magnetic field extends along the length of the helical ramp (32,32').
Claims8
An apparatus (10,10') for handling articles by magnetic attraction comprising;
- an elongated, hollow, cylindrical outer casing (12,12') of nonmagnetic material, said casing (12,12') having upper (22,22') and lower (24,24') ports and continuous, uninterrupted outer (28,28') and inner (30,30') surfaces extending therebetween;
- a helical ramp (32,32') of nonferrous, nonmagnetic material rotatably disposed within said casing (12,12') between said upper (22,22') and lower (24,24') ports and including a continuous helical outer edge (40,40') constantly adjacent to said inner surface (30,30'), said ramp (32,32') and inner surface (30,30') defining a spiral passageway;
- and magnet means (42,42') disposed outside of said casing (12,12') for directing a magnetic field through and into said passageway casing (12,12') and into said passageway as said ramp (32,32') rotates, said magnetic field extending continuously along the length of said passageway.
Dependencies are inferred from the claim text.