Abstract:
A method of making a passenger conveyor handrail includes forming a drive member having a plurality of longitudinally spaced drive surfaces. The drive member has a longitudinal stiffness for maintaining a desired spacing between the drive surfaces. The drive member is inserted into a molding device. A gripping surface portion of the handrail is formed using the molding device such that the gripping surface portion and the drive member are secured together. Another method includes forming a belt drive member having a plurality of teeth that establish a plurality of longitudinally spaced drive surfaces. The belt has a longitudinal stiffness for maintaining a desired spacing between the drive surfaces. Each of the teeth extends across an entire width of the belt. The belt is secured to a gripping surface portion of the handrail.
Abstract:
A membrane distillation system includes a membrane distillation module, a brine loop and a distillate loop. The brine loop and the distillate loop each include means for regulating flow of brine solution and distillate, respectively, to the membrane distillation module. The flow of brine solution and distillate is regulated to prevent brine solution and distillate from penetrating membranes of the membrane distillation module. A method of membrane distillation includes delivering brine solution and distillate to the membrane distillation module at low pressures in a first mode. The method also includes heating the brine solution and cooling the distillate and delivering portions of each to the membrane distillation module in a second mode. The portions of heated brine solution and cooled distillate are adjusted to facilitate membrane distillation while preventing liquid from penetrating membranes of the membrane distillation module.
Abstract:
A composition comprising a polyetherester resin reinforced with aromatic polyamide fibers, exhibits good adhesion between the polyetherester resin and the aromatic polyamide fibers and could be used in automotive or other high strength applications.
Abstract:
A passenger conveyor handrail (30) includes a sliding layer (40) that is non-woven in some examples and non-fabric in other examples. A first polymer material is used to establish a body portion (32) of the handrail (30) to provide, for example, a gripping surface (34). The sliding layer (40) is secured to a surface (38) of the handrail (30) to cover at least a portion of that surface to meet the needs of a particular situation. Disclosed examples include a variety of configurations and a variety of techniques for applying such a sliding layer (40) to a handrail (30).
Abstract:
A contactor module for separating a distillate from a feed solution includes an outer casing with an interior region, a distillate collection chamber, and pluralities of hollow fiber membranes and hollow tubes extending through the distillate collection chamber, where the hollow fiber membranes are configured to allow vapor transmission, and the hollow tubes are configured to substantially prevent vapor transmission, and further configured to allow transmission of thermal energy.
Abstract:
A distillation system and method includes open reservoirs and pluralities of hollow fiber membranes and hollow tubes extending through portions of separate open reservoirs. The hollow fiber membranes are configured to allow vapor transmission, and the hollow tubes are configured to substantially prevent vapor transmission but allow transmission of thermal energy. Feed solution is circulated through the open reservoirs. Distillate is separated from the feed solution by the hollow fiber membranes and thermal energy is recouped through the hollow tubes.
Abstract:
A membrane module comprising an outer casing having an interior region, a seal disposed within the outer case, thereby dividing the interior region into a first chamber and a second chamber, and a plurality of hollow fiber membranes extending through the first chamber and the second chamber, where at least a portion of the plurality of hollow fiber membranes have first segments located within the first chamber and second segments located within the second chamber, the first segments being configured to allow vapor transmission therethrough, and the second segments being configured to substantially prevent vapor transmission therethrough, and further configured to allow transmission of thermal energy therethrough.
Abstract:
A passenger conveyor handrail (30) includes a sliding layer (40) that is non-woven in some examples and non-fabric in other examples. A first polymer material is used to establish a body portion (32) of the handrail (30) to provide, for example, a gripping surface (34). The sliding layer (40) is secured to a surface (38) of the handrail (30) to cover at least a portion of that surface to meet the needs of a particular situation. Disclosed examples include a variety of configurations and a variety of techniques for applying such a sliding layer (40) to a handrail (30).
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).