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US 10,214,387 B2Granted
Magnetic elevator drive member and method of manufacture
AssigneeOtis Elevator Company
InventorRichard N. Fargo
Life of this patent
Estimating the term…
Abstract
An illustrative example method of making a magnetic drive component includes inserting a plurality of metal teeth into a metal tube. The teeth respectively have a first portion received against an inner surface of the tube. The teeth respectively have a second portion and a third portion spaced apart and projecting toward a center of the tube. The method includes securing the plurality of teeth to the tube.
Claims24
A method of making a magnetic drive component, the method comprising:
- inserting a plurality of metal teeth into a metal tube, the teeth respectively having a first portion received adjacent an inner surface of the tube, the teeth respectively having a second portion and a third portion spaced apart and projecting toward a center of the tube;
- and
- securing the plurality of teeth to the tube.
A magnetic drive assembly, comprising:
- a metal tube having an inner surface;
- a plurality of metal teeth inside the metal tube, the teeth respectively having a first portion received adjacent the inner surface of the tube, the teeth respectively having a second portion and a third portion spaced apart and projecting toward a center of the tube, the first portion, the second portion and the third portion of each of the teeth defining a body of the respective teeth, each body being a distinct component of the assembly independent of the tube;
- and
- at least one guiding surface on an outer portion of the tube, the at least one guiding surface extending parallel to a longitudinal axis of the tube.
1 more element
Dependencies are inferred from the claim text.