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 heating element includes a bottom layer, a web consisting of a carbon nanotube (CNT) yarn wherein the web is affixed to a first side of the bottom layer, and an encapsulating layer positioned on the web and the first side of the bottom layer. A method for making a heating element includes providing a bottom layer, inserting a plurality of pegs into the bottom layer such that a portion of each peg protrudes from the bottom layer, weaving a CNT yarn around the protruding portions of the plurality of pegs to form a CNT web, affixing the CNT web to the bottom layer, and encapsulating the CNT web and the bottom layer to form the heating element.
Abstract:
A pleated double layer media is used in a water purifier. Each layer of the pleated double sheet includes a ply made of a material that catches pathogens and a ply made of material that kills pathogens. The layers are pleated together and joined with a cap to form the water purifier, resulting in a better sealed, stronger water purifier capable of catching and killing pathogens.
Abstract:
A composite sandwich structure for heating an environment includes a first core layer made from a first cellular material and having a first thickness, and a second core layer made from a second cellular material and having a second thickness less than the first thickness. The structure further includes a heating layer having a thermoelectric heating element and disposed between the first and second core layers. The first core layer is positioned between the heating layer and the environment.
Abstract:
Pre-fabric, flexible and thermally stable plastic sheets are loaded with carbon additives such as carbon nanotubes (CNTs), graphene, nano carbon fibers, graphite powders, or other carbon allotropes to adjust the resistivity of the sheets as desired for ice protection. These sheets are both conformable to desired surfaces and prevent the carbon debris migration issues in traditional CNT heaters.
Abstract:
A deicer includes an aircraft structure and an outer layer with a sheet having a brittle point lower than −40° C. (−40° F.). The sheet includes a polyether urethane elastomer. A deicer includes an aircraft structure and an outer elastomer layer. The outer elastomer layer includes a non-woven fabric having polyether urethane fibers and one of (1) a carbon allotrope material aligned with at least one of the polyether urethane fibers and (2) a polyester urethane composition located on a portion of the non-woven fabric. A method of forming a layer of a deicer boot includes forming a polyether urethane elastomer sheet having a brittle point lower than −40° C. (−40° F.) and incorporating the polyether urethane elastomer sheet onto an aircraft structure.
Abstract:
A deicer boot includes a plurality of first elastomer fibers and a first carbon allotrope material selected from the group consisting of carbon nanotubes, graphene, graphite and carbon black. The first carbon allotrope material is aligned with one of the first elastomer fibers. The deicer boot also includes a plurality of second elastomer fibers and a second carbon allotrope material selected from the group consisting of carbon nanotubes, graphene, graphite and carbon black. The second carbon allotrope material is aligned with one of the second elastomer fibers. The second elastomer fibers are different from the first elastomer fibers.
Abstract:
The invention provides a novel method of preparing a filter media by thermally bonding silver-coated nanofiber fabrics to a dirt-retaining membrane, a chemical-retaining membrane, a pathogen-retaining membrane, or a combination thereof. The invention also relates to the use of silver-coated nanofiber fabric layer as a component of a microorganism-killing membrane in filter media for a liquid or air filtration system. The filter media of the invention offers efficient disinfection effects, maintaining a low pressure drop and a high flow rate when in use. Further, the filter media is adhesive-layer free and contains at least one thermal binding layer made of spunbonded nonwoven polymeric fabrics. The invention also features a water-purification cartridge and a portable water system thereof.
Abstract:
A method of making a blind hole in a wall of a multi-section tank during manufacture includes inserting a thin, flexible composite spacer ring in a hole in a composite material between mating parts of a soluble tool. The composite spacer ring is cured to the composite material during curing and maintains the hole between sections of the tank once completed.
Abstract:
A system for inductive heating of an aircraft surface includes a conductive outer layer configured to be located on an outer portion of the aircraft surface. The system further includes a carbon nanotube (CNT) yarn configured to receive and conduct electrical current. The system further includes an insulator located between the conductive outer layer and the CNT yarn such that the electrical current flowing through the CNT yarn generates induction heating on the conductive outer layer.