ICE PROTECTION SYSTEM FOR ROTARY BLADES

    公开(公告)号:US20210179276A1

    公开(公告)日:2021-06-17

    申请号:US16711867

    申请日:2019-12-12

    Abstract: An ice protection system may include a rotary blade, an electrothermal heater, and a low ice adhesion surface. The low ice adhesion surface may include an adhesion strength below 100 kPa. The rotary blade may be disposed between the electrothermal heater and the low ice adhesion surface. The electrothermal heater may be disposed between the low ice adhesion surface and the rotary blade. The low ice adhesion surface may include a coating or a surface treatment.

    MULTI POLYMER POSITIVE TEMPERATURE COEFFICIENT HEATER

    公开(公告)号:US20200022224A1

    公开(公告)日:2020-01-16

    申请号:US16032793

    申请日:2018-07-11

    Abstract: A heating element includes a first bus bar disposed to receive current from a power source, and a second bus bar non-adjacent to the first bus bar. The heating element further includes a polymer ink section extending between the first and second bus bars, and the section includes a plurality of PTC polymer inks each different from one another. The second bus bar is electrically connected to the first bus bar via the polymer ink section.

    ASYMMETRIC SURFACE LAYER FOR FLOOR PANELS
    37.
    发明申请

    公开(公告)号:US20200010167A1

    公开(公告)日:2020-01-09

    申请号:US16026377

    申请日:2018-07-03

    Abstract: A heater panel includes a core. A heater/dielectric layer including a positive thermal coefficient (PTC) heater layer between a pair of dielectric layers is bonded to the core in a stack. An impact layer is bonded to the stack, wherein the impact layer includes a first sub-layer for impact absorption that is bonded to the stack and a second sub-layer for cut resistance bonded to the first sub-layer. The second sub-layer has a higher material hardness than that of the first-sub layer.

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