Otis Elevator Company

Dupont Teijin Films U.S. Limited Partnership

E.i. Dupont De Nemours and Company

Chen Qian Zhao

Kyle B Martin

Cornell Chappell, Jr

Wenping Zhao

Scott Alan Eastman

Daniel A Mosher

Brad Guilani

Lech Wilczek

Randall S Dube

Yuefei Tao

Jennifer Leigh Thompson

David Voisin

Andrew Jay Duncan

Curtis R Center

David Volsin

Cornell Chappell Jr

Jennifer L Thompson

A method of making an elevator load bearing member includes unidirectional weaving a plurality of load bearing fibers including at least a first material and a second material. A melting point of the first material is higher than a melting point of the second material. The method includes bonding the load bearing fibers together by at least partially melting at least some of the second material and coating the plurality of load bearing fibers.

Elevator load bearing member including a unidirectional weave

An illustrative example embodiment of an elevator load bearing member includes a unidirectional weave of a plurality of load bearing fibers including at least a first material and a second material. A melting point of the first material is higher than a melting point of the second material. The plurality of load bearing fibers are bonded together by at least some of the second material that is at least partially melted. A coating covers the plurality of load bearing fibers.

A lifting member for an elevator system is disclosed, including a rope formed from a plurality of strands comprising liquid crystal polymer fibers, with the strands extending along a length of the lifting member. A first polymer coating is disposed on outer surfaces of the fibers or on outer surfaces of the strands. A second polymer coating disposed over the first polymer coating.

Load bearing traction members and method

A lifting member for an elevator system includes a rope formed from plurality of load carrying fibers extending along a length of the lifting member. The plurality of load carrying fibers including a plurality of aromatic polyester based fibers. A coating layer at least partially encapsulates the rope. An elevator system includes a hoistway, an elevator car disposed in the hoistway and movable therein, and a lifting member operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The lifting member includes a rope formed from plurality of load carrying fibers extending along a length of the lifting member. The plurality of load carrying fibers including a plurality of aromatic polyester based fibers. A coating layer at least partially encapsulates the rope.

Light weight load bearing member for elevator system

A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of load carrying fibers, the plurality of load carrying fibers including a plurality of aromatic polyester based fibers. A jacket material at least partially encapsulates the plurality of tension members.

Tension member for elevator system belt

A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a core member formed from a plurality of load carrying fibers, and a plurality of overwrap members surrounding the core member. A jacket material at least partially encapsulates the plurality of tension members. An elevator system includes a hoistway, an elevator car positioned in the hoistway and movable therein, and a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a core member formed from a plurality of load carrying fibers, and a plurality of overwrap members surrounding the core member.

A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt and a jacket at least partially enclosing the plurality of tension members. The jacket defining a traction side of the belt configured to interface with a traction sheave of an elevator system. The jacket includes a base material layer, and a coating layer positioned over the base material layer formed from a self-extinguishing fluoroelastomer material. A method of forming a belt for an elevator system includes forming a plurality of tension members and encapsulating the plurality of tension members in a jacket. The jacket includes a base material layer and a coating layer formed from the self-extinguishing fluoroelastomer material.

Belt with self-extinguishing layer and method of making

A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers, and a plurality of second fibers different from the first fibers dispersed into the first fibers. A jacket material at least partially encapsulates the plurality of tension members. An elevator system includes a hoistway, an elevator car located in the hoistway and movable therein, and a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers and a plurality of second fibers different from the first fibers dispersed into the first fibers.

Hybrid fiber tension member for elevator system belt

A method of surface treating a load-bearing member comprising a tension member and a polymer jacket around the tension member is disclosed. According to the method, a liquid composition including water, a water-soluble organic polyol or a water-soluble organic polymer, and a surfactant is applied to a surface of the polymer jacket.

Load-bearing member surface treatment

A belt for an elevator system includes a tension member extending at least partially across a belt width and extending longitudinally along a length of the belt, the tension member formed at least partially from a plurality of aromatic polyester based fibers, and a jacket material at least partially encapsulating the tension member. An elevator system includes a hoistway, an elevator car located in the hoistway and movable therein, and a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a tension member extending at least partially across a belt width and extending longitudinally along a length of the belt. The tension member is formed at least partially from a plurality of aromatic polyester based fibers. A jacket material at least partially encapsulates the tension member.

Elevator system belt with fabric tension member

An illustrative example elevator traveling cable includes a plurality of conductors configured for conducting at least one of electrical energy and communication signals. A jacket covers the plurality of conductors. At least one load bearing member supports a weight of the traveling cable and comprises liquid crystal polymer.

Lightweight elevator traveling cable

A belt for suspending and/or driving an elevator car including a plurality of tension elements extending longitudinally along a length of the belt, and a plurality of yarns interlaced with the plurality of tension elements forming a composite belt structure. The plurality of yarns are formed from a self-extinguishing fluoroelastomer material. An elevator system includes a hoistway, an elevator car positioned in the hoistway and movable therein, a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a plurality of tension elements extending longitudinally along a length of the belt and a plurality of yarns interlaced with the plurality of tension elements forming a composite belt structure. The plurality of yarns are formed from a self-extinguishing fluoroelastomer material.

Self-extinguishing fabric belt for elevator system

An elevator brake wedge is provided and includes an elongate body having first and second generally opposed major surfaces and first and second generally opposed minor surfaces. The second minor surface has a greater length than the first minor surface. Each of the first and second major surfaces extends between corresponding first and second ends of the first and second minor surfaces, respectively. The second major surface defines low-friction film securing grooves extending from a plane of the second major surface into the elongate body.

Elevator brake wedge

A coating composition including an alkali metal silicate, a wetting agent, and a hydrophilic antifog agent forms an antifog coating on a substrate. The coating may be applied to the surface of a film from an aqueous dispersion of the ingredients, followed by drying to form a composite film.

Silicate-containing antifog coatings

Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) 0.50 to about 5.0 weight percent of one or more amino acid selected from the group consisting of primary amino acids and secondary amino acids; said amino acid having no hydroxyl groups and no more than one carboxylic acid; optionally, c) one or more polyepoxy compound including at least two or more epoxy groups; d) reinforcing agent; e) polymeric toughener; and f) further additives; wherein the weight percents of components a), b), c) d) e) and f) are based on the total weight of the thermoplastic melt-mixed composition. Also disclosed are processes for making the compositions.

Growing community of inventors

Newark, DE, United States of America

Chen Qian Zhao