Blowable flexible innerduct
    3.
    发明授权

    公开(公告)号:US11913593B2

    公开(公告)日:2024-02-27

    申请号:US17984849

    申请日:2022-11-10

    Abstract: The process of forming a blowable flexible innerduct contains the steps of forming an inner innerduct structure comprising at least one inner longitudinal chamber, where the at least one inner longitudinal chamber comprises an inflatable tube and forming a textile. Concurrently forming an outer innerduct structure from the textile having at least one outer longitudinal chamber and inserting at least one inner longitudinal chamber into at least one of the outer longitudinal chambers. The inflatable tube has a wall thickness of less than about 0.5 mm. The inner longitudinal chamber alone has an air permeability of less than about 1 cfm, outer longitudinal textile chamber alone has an air permeability of greater than about 100 cfm, and the outer and inner longitudinal textile chambers together have an air permeability of less than about 1 cfm.

    Polyether urethane deicer boots
    8.
    发明授权

    公开(公告)号:US09994325B2

    公开(公告)日:2018-06-12

    申请号:US15140075

    申请日:2016-04-27

    Inventor: Jin Hu

    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.

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