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US 4,067,438 AGranted
Magnetic drive for conveyor
AssigneeEmhart Industries, Inc.
InventorsRobert Spurr, Francis A. Dahms, Francis A. Sarkozy
Life of this patent
Estimating the term…
Abstract
A magnetic drive for a metallic conveyor belt is provided by a driving wheel having permanent magnets disposed in the outer periphery thereof, the magnets protruding radially outwardly so that they act as cleats for driving the belt in addition to supplying a magnetic shear force for driving the belt.
Claims10
A magnetic drive wheel for an endless woven magnetically attractable conveyor belt, comprising:
- a wheel having slots disposed in the outer periphery of said wheel;
- a permanent magnet disposed in each of said slots such that the outer surface of each of said magnets protrude radially outwardly of said wheel so that the magnets form driving cleats which engage said woven belt;
- and
- means for securing said magnets in said slots to said wheel, said means also magnetically isolating said magnets from said wheel.
1 more element
A conveyor for conveying articles comprising:
- an idler wheel;
- a conveyor belt driving wheel spaced from said idler wheel, said driving wheel having slots disposed in the outer periphery thereof, and permanent magnets secured in said slots with securing means such that the outer surfaces of said magnets protrude radially outwardly of said driving wheel so that the magnets form driving cleats, said securing means both retaining said magnets in said slots in said driving wheel and also magnetically isolating said magnets from said driving wheel;
- an endless woven magnetically attractable conveyor belt wrapped about portions of said idler wheel, said belt also being wrapped at least 180.degree. around said driving wheel;
- and
- means for driving said conveyor belt driving wheel.
2 more elements
A conveyor for conveying articles, comprising:
- a first idler wheel;
- a second idler wheel spaced from said first idler wheel;
- a conveyor belt driving wheel spaced from said first and second idler wheels, said driving wheel having permanent magnets disposed in the outer periphery thereof, said magnets protruding radially outwardly of said driving wheel so as to form driving cleats, said magnets being disposed such that the poles of said magnets lie substantially parallel to the axis of rotation of said driving wheel, and said magnets being secured in said driving wheel by securing means which also magnetically isolate said magnets from said driving wheel;
- a first wrap wheel disposed between and spaced from said first idler wheel and said conveyor belt driving wheel;
- a second wrap wheel disposed between and spaced from said second idler wheel and said conveyor belt driving wheel;
- an endless woven, magnetically attractable conveyor belt wrapped about portions of said first idler wheel, said second idler wheel, said first wrap wheel and said second wrap wheel, said belt also being wrapped at least 270.degree. around said conveyor belt driving wheel;
- and
- means for driving said conveyor belt driving wheel.
5 more elements
Dependencies are inferred from the claim text.