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US 10,587,180 B2Granted
Magnetic elevator drive member and method of manufacture
AssigneeOtis Elevator Company
InventorRichard N. Fargo
Life of this patent
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Abstract
An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a plurality of magnet retainers on a rod using an additive manufacturing process. Magnets are inserted between the retainers with magnetic poles of axially adjacent ones of the magnets oriented with like poles facing toward a portion of one of the retainers between the adjacent ones of the magnets.
Claims13
A method of making a rotary magnetic drive member, the method comprising:
- establishing a plurality of magnet retainers on a rod using wire arc additive manufacturing;
- and
- inserting magnets between the magnet retainers with magnetic poles of axially adjacent ones of the magnets oriented with like poles facing toward a portion of one of the magnet retainers between the adjacent ones of the magnets, wherein inserting the magnets comprises
- positioning at least one of the magnets at least partially in a gap between ends of the magnet retainers near one end of the rod and
- moving the at least one of the magnets within the gap in a helical direction along the rod toward an opposite end of the rod into a desired location.
2 more elements
Dependencies are inferred from the claim text.