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US 2006/0137896 A1Published application
Elevator belt assembly with prestretched synthetic cords
AssigneeOtis Elevator Company
InventorHugh O'Donnell
Life of this patent
Estimating the term…
Abstract
An elevator load bearing assembly (40) includes a plurality of synthetic or polymer cords (42) within a urethane jacket (44). The cords are prestretched and the jacket prevents the stretched cords from relaxing. The inventive arrangement provides a load bearing assembly (40) that has little or no elastic or construction stretch.
Claims14
A method of mailing an elevator belt assembly having a plurality of cords within a jacket, comprising the steps of:
- (a) aligning the plurality of cords in a selected arrangement;
- (b) tensioning the cords a selected amount to stretch the cords;
- and
- (c) applying a selected jacket material to the cords to encase the cords in the jacket so that the cords remain stretched within the jacket.
1 more element
An elevator belt assembly, comprising:
- a plurality of cords that are stretched;
- and
- a jacket over the stretched cords that keeps the cords stretched the desired amount without any external load applied to the belt assembly.
An elevator belt assembly made by the process, comprising the steps of:
- (a) aligning a plurality of cords in a selected arrangement;
- (b) stretching the cords by applying a selected amount of tension;
- and
- (c) applying a selected jacket material to the stretched cords to encase the cords in the jacket so that the cords remain stretched within the jacket.
1 more element
Dependencies are inferred from the claim text.