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US 11,111,108 B2Granted
Coated sheave
AssigneeOtis Elevator Company
InventorsXiaoyuan Chang, David R. Torlai
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Abstract
An elevator sheave includes a sheave body and a coating on a surface of the sheave body. The coating includes microcracks and a filler in the microcracks. A method of making a sheave for an elevator system is also disclosed.
Claims7
An elevator system, comprising:
- an elevator sheave, the elevator sheave including:
- a sheave body,
- a coating on a surface of the sheave body, the coating including microcracks,
- a filler in the microcracks;
- and
- a load bearing assembly at least partially wrapped around the elevator sheave such that the load bearing assembly is in a friction relationship with the coating on the sheave, wherein the load bearing assembly includes a jacket, the jacket comprising a polymer, wherein the filler is inert to the polymer, and wherein the filler comprises a material and the jacket comprises the material.
3 more elements
Dependencies are inferred from the claim text.