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24 条记录 (耗时 0.019 秒)

    Shape and envelope cutting system
    21.
    发明授权
    Shape and envelope cutting system 失效
    形状和信封切割系统

    公开(公告)号：US06708413B2

    公开(公告)日：2004-03-23

    申请号：US10037167

    申请日：2001-12-31

    申请人： Christopher Robert Carlson ,  William J. Schulz ,  Jamieson A. Foght

    发明人： Christopher Robert Carlson ,  William J. Schulz ,  Jamieson A. Foght

    IPC分类号： B43L1320

    CPC分类号： B26B29/06

    摘要： An envelope or package cutting system for cutting a material having a surface. The envelope cutting system includes a cutting unit and at least one template having the opening that is the shape of an unfolded envelope. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly which are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. A rigid collar of the retainer is configured to operatively engage at least one of a periphery and the edge of the opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of an unfolded envelope.

    摘要翻译： 用于切割具有表面的材料的信封或包装切割系统。 信封切割系统包括切割单元和至少一个模板，该模板具有作为展开外壳形状的开口。 切割单元包括联接到框架的框架，叶片调整组件和叶片组件。 叶片组件至少部分地定位在框架内，使得叶片组件的纵向轴线基本上垂直于框架的下支撑表面。 叶片组件包括叶片保持器和连接到保持器的叶片。 保持器的刚性套环构造成可操作地接合模板的开口的周边和边缘中的至少一个，从而使得刀片能够切割切割材料中的形状，其同化展开的封套的形状。

    Fixed pitch propeller
    24.
    发明授权
    Fixed pitch propeller 失效
    固定螺距螺旋桨

    公开(公告)号：US5249928A

    公开(公告)日：1993-10-05

    申请号：US762508

    申请日：1991-09-19

    申请人： William J. Schulz

    发明人： William J. Schulz

    IPC分类号： B64C11/18 ,  B63H1/26

    CPC分类号： B64C11/18 ,  Y10S416/02 ,  Y10S416/05

    摘要： A fixed pitch propeller has blades that are not solely dependent on the blade angle dictated by the helical path of the blade tip. An outboard portion of the blade has a range of blade angles that are relatively flat to operate most efficiently at lower aircraft speeds. An inboard portion of the blade has a range of blade angles that are relatively high pitched to allow efficient operation at higher aircraft speeds

    摘要翻译： 固定螺距螺旋桨具有不仅完全取决于由叶片尖端的螺旋路径决定的叶片角度的叶片。 叶片的外侧部分具有相对平坦的叶片角度范围，以在较低的飞行速度下最有效地操作。 叶片的内侧部分具有相对较高倾斜的叶片角度范围，以允许在较高飞行速度下的有效操作