Surfboard construction
    2.
    发明授权
    Surfboard construction 失效
    冲浪板建设

    公开(公告)号:US4961715A

    公开(公告)日:1990-10-09

    申请号:US294750

    申请日:1989-01-09

    CPC classification number: B63B35/7906 Y10S264/16

    Abstract: Water sport equipment, such as surfboards, sailboards and the like formed of a molded foam composed of expanded polypropylene foam beads, having a density of approximately 3.75 PCF, melted together with steam pressure and improved methods for producing such equipment.

    Abstract translation: 由具有大约3.75PCF的密度的膨胀聚丙烯泡沫珠形成的模制泡沫形成的水上运动设备,如蒸汽压力一起熔化,以及用于生产这种设备的改进方法。

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