Abstract: A belt for suspending and/or driving an elevator car includes a tension member extending along a length of the belt, the tension member including a plurality of fibers bonded in a first polymer matrix, the plurality of fibers extending parallel to and discontinuous along a length of the belt and arranged with one or more lengthwise extending gaps between lengthwise adjacent fibers. A jacket substantially retains the tension member. A method of forming a tension member for an elevator system belt includes arranging a plurality of fibers into a fiber bundle. The plurality of fibers extend parallel to a length of the belt and have one or more lengthwise extending gaps between lengthwise extending fibers. The plurality of fibers is bonded to a first polymer matrix.

Abstract: A belt for suspending and/or driving an elevator car includes a plurality of tension elements extending along a length of the belt and a plurality of belt fibers transverse to the plurality of tension elements and interlaced therewith. The belt fibers define at least one traction surface of the belt. An edge fiber is located at a lateral end of the belt transverse to and secured to the plurality of belt fibers to secure the belt fibers in a selected position.

Abstract: Embodiments are directed to obtaining a specification comprising at least one requirement associated with a heating, ventilation, and air-conditioning (HVAC) system, and based on the specification, configuring a control system to control a movement of fluid back and forth across at least one regenerator device of the HVAC system and a mixing of the fluid with ambient air.

Abstract: An exemplary assembly includes at least one elongated tension member. A jacket covers at least some of the tension member. The polymer jacket comprises a polymer material including a melamine based geometry stabilizer that facilitates maintaining the jacket material near the tension member if the assembly is subjected to a high temperature condition.

Abstract: Elevator tension members are disclosed. The disclosed tension member longitudinally extends along a longitudinal axis and includes a plurality of fibers formed into one or more primary strands or cords extending parallel to the longitudinal axis and a plurality of fibers formed into one or more secondary strands or cords extending parallel to the longitudinal axis and through less than the full length of the belt, and a jacket retaining the primary and secondary strands or cords. The secondary strands or cords have a tensile modulus greater than a tensile modulus of the jacket and less than a tensile modulus of the primary strands or cords. Methods of making the tension member are also disclosed.

Abstract: An elevator load bearing assembly (30) includes a jacket (34) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members (32) are at least partially surrounded by a first portion (36) comprising a first polymer composition. A second portion (38) establishes at least one exterior surface (40) of the jacket (34) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket (34). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket (34).

Abstract: A pressure vessel configured to store a pressurized fluid is provided including a plurality of lobes. Each lobe includes at least one vertically arranged interior wall. The plurality of lobes are positioned in a side by side configuration such that a first interior wall of a first lobe is positioned adjacent a second interior wall of a second adjacent lobe. The first interior wall and the second interior wall are configured to contact one another at a first point of tangency. A first tangent intersects the first lobe at the first point of tangency and a second tangent intersects the second lobe at the first point of tangency. The first tangent and the second tangent are separated by about 120 degrees.

Abstract: A method of forming a composite structure including passing a web that is impregnated with an uncured resin in an assembly direction. Foam is forced about opposed sides of the web with the web including corrugations at least after this step. Outer skins of a fiber mat are attached onto outer sides of the web and foam. The fiber mat is impregnated with a resin. The combination of the fiber mats, the foam and the web is thermoformed in a mold to provide a shape for a structure.

Abstract: A heating circuit assembly and method of manufacture includes an electrically conductive heating element having a pattern. An electrically non-conductive substrate is additive manufactured and secured to the element for structural support. The substrate has a topology that generally aligns with the pattern of the element thereby reducing the assembly weight and minimizing substrate material waste.

Abstract: A method of fault detection of a belt or rope includes interconnecting a plurality of cords of the belt or rope, the cords including a plurality of wires, to form a bridge circuit. A fault detection bridge circuit is subjected to a voltage excitation and outputs a voltage which is indicative of the belt or rope damage but remaining insensitive to other environmental noises.

Abstract: A method of fault detection of a belt or rope includes connecting a fault detection unit to at least a portion of a belt or rope including a plurality of wires arranged in a plurality of strands and/or cords. At least the portion of the belt or rope is subjected to an AC voltage of high frequency range and an electrical impedance of the portion of the belt or rope is measured via the fault detection unit. Using at least the measured electrical impedance of the portion of the belt or rope, a fault condition of the belt or rope is determined.

Abstract: An additive manufacturing system for forming a component on a layer-by-layer basis includes a first pump for pumping a first material and a second pump for pumping a second material. The additive manufacturing system further includes a mixer for receiving and mixing the first material and the second material to form a thermosetting resin, a nozzle fluidly connected to the mixer for extruding the thermosetting resin, and a motion control system connected to the nozzle for moving the nozzle in a predetermined pattern to form a layer of the component.

Abstract: An exemplary method of making a woven fabric includes weaving a plurality of load supporting tension members and a plurality of cross fibers together into a woven fabric. A spacing between adjacent ones of the tension members has a first dimension. At least some of the cross fibers are shrunk to thereby decrease the spacing between the adjacent ones of the tension members to a second, smaller dimension. In another example, two woven fabrics are positioned next to each other. The two fabrics include a spacing between adjacent tension members having a first dimension. At least one tension member of one woven fabric is aligned with and between two of the tension members of the other fabric to thereby decrease the spacing to a second, smaller dimension.

Abstract: A belt for an elevator system and a method for making the same is provided. The belt includes a plurality of tension members that extend along a length of the belt and a jacket. The jacket substantially retains the plurality of tension members. The jacket maintains a desired spacing and alignment of the tension members relative to each other. The jacket includes a plurality of first fibers and a plurality of second fibers. The jacket defines at least one exterior, traction surface of the belt. The first fibers are at least partially disposed between the tension members and the traction surface of the belt. The second fibers are fill fibers. The first fibers have at least one property that distinguishes them from the second fibers.

Abstract: A method for applying a coating to a substrate includes obtaining a fluorinated polymer compound, where the fluorine is chemically or covalently bonded to the polymer molecule; and coating the surface of the substrate with the fluorinated polymer compound.

Abstract: A method for constructing an interface between a sheave and a coated belt or rope of an elevator system, includes determining the surface energy of a surface of a coated belt or rope; and selecting a sheave such that the sheave has a work of adhesion between the coated belt or rope and the sheave, the work of adhesion meeting a defined relationship with a work of adhesion threshold.

Abstract: An elevator sheave (20) includes a belt guiding surface (26) having a surface profile along at least a portion of the belt guiding surface. The surface profile preferably is defined by an nth order polynomial equation where n is a number greater than 2. In one example, the reference point (40) is a central point along the width of the belt guiding surface (26). In one example, a central portion (42) of the surface profile preferably is aligned to be generally parallel with the central axis (34) of the sheave body. Some examples have curvilinear side portions (44,46) between the central portion (42) and the edges (28,30) of the sheave. Other examples also include second side portions (48,50) that have linear profiles.

Abstract: A heat exchanger includes a plurality of polymer tubes extending between and fluidly connecting an inlet manifold and an outlet manifold, thereby providing a flow path inside said tubes for a first fluid between the inlet manifold and the outlet manifold. The tubes are configured to have space between the exterior surfaces thereof, thereby providing a fluid flow path for a second fluid through the space between the exterior surfaces of the tubes.

Abstract: A heat exchanger includes a plurality of tubes conveying a first fluid flow therethrough disposed substantially transverse to a direction of a second fluid flow through the heat exchanger and arranged in a plurality of tube rows extending substantially along the direction of the second fluid flow. The heat exchanger further includes a web sheet having a plurality of webs and a plurality of tube recesses disposed between the webs of the plurality of webs. Each tube of the plurality of tubes is secured to a tube recess of the plurality of tube recesses. Forming a heat exchanger includes forming a web sheet having a plurality of webs and a plurality of tube recesses located between the webs. A plurality of tubes are formed and configured to convey a first fluid flow therethrough. The plurality of tubes are inserted into the plurality of tube recesses.

Abstract: An illustrative method of making a load bearing member for use in an elevator system includes mechanically roughening at least one surface on an exterior of a jacket of the load bearing member to establish a friction characteristic that facilitates engagement between an elevator system sheave and the roughened surface.