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US 2021/0024328 A1Published application
Elevator load bearing member having a jacket including a fluoropolymer
AssigneeOtis Elevator Company
InventorChen qian ZHAO
Life of this patent
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Abstract
An illustrative example embodiment of an elevator load bearing member includes a plurality of load bearing cords and a jacket at least partially surrounding the cords. The jacket includes an inner portion received on the cords and a fluoropolymer outer portion that establishes a fire-resistant exterior of the jacket.
Claims13
An elevator load bearing member, comprising:
- a plurality of load bearing cords;
- and
- a jacket at least partially surrounding the cords, the jacket including an inner portion received against the cords and a fluoropolymer portion that establishes a fire-resistant exterior of the jacket.
A method of making an elevator load bearing member, the method comprising:
- forming an inner portion of a jacket on a plurality of load bearing cords;
- and
- establishing a fire-resistant fluoropolymer portion on the inner portion to define an exterior of the jacket.
Dependencies are inferred from the claim text.