Apparatus and method for making composite shafts

    公开(公告)号:US11220070B2

    公开(公告)日:2022-01-11

    申请号:US16533670

    申请日:2019-08-06

    Abstract: An apparatus for forming a composite shaft may comprise an axial fiber strip dispensing assembly and a hoop fiber strip dispensing assembly. The axial fiber strip dispensing assembly may include a plurality of fiber strip guides located circumferentially about a center axis. The plurality of fiber strip guides may be configured to dispense a plurality of circumferentially adjacent first fiber strips with the plurality of circumferentially adjacent first fiber strips extending in a generally axial direction. The hoop fiber strip dispensing assembly may be configured to dispense a second fiber strip circumferentially about the center axis.

    DESIGN AND MANUFACTURE OF A CONFORMABLE PRESSURE VESSEL

    公开(公告)号:US20210041064A1

    公开(公告)日:2021-02-11

    申请号:US16949276

    申请日:2020-10-22

    Abstract: A method of manufacturing a high-pressure fluid vessel includes forming a first portion of a high-pressure fluid vessel with a molding process. The high-pressure fluid vessel includes a stack of capsules. Each capsule includes a first domed end, a second domed end, and a semicylindrical portion extending between and connecting the first domed end to the second domed end. The method further includes forming a second portion of a high-pressure fluid vessel with the molding process. The second portion of the high-pressure fluid vessel is positioned adjacent to the first portion of the high-pressure fluid vessel. The second portion of the high-pressure fluid vessel is welded to the first portion of the high-pressure fluid vessel.

    Adjusting CNT resistance using perforated CNT sheets

    公开(公告)号:US10264627B2

    公开(公告)日:2019-04-16

    申请号:US15373363

    申请日:2016-12-08

    Abstract: One example of a heating element includes a first carbon nanotube (CNT) layer and a second CNT layer. At least a portion of the first CNT layer overlaps at least a portion of the second CNT layer, and the first CNT layer includes a first perforated region having a plurality of perforations. Another heating element includes a CNT sheet with a first perforated region having a plurality of perforations and a first perforation density and a second perforated region having a plurality of perforations and a second perforation density different from the first perforation density. A method of forming a heating element includes perforating a first CNT layer so that it includes a perforated region and stacking the first CNT layer with a second CNT layer such that at least a portion of the first CNT layer overlaps at least a portion of the second CNT layer.

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