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公开(公告)号：US06722051B2
公开(公告)日：2004-04-20
申请号：US09769683
申请日：2001-01-25
IPC分类号： B43L1320
CPC分类号： B26B29/06 , Y10T83/75 , Y10T83/7507 , Y10T83/7653 , Y10T83/875 , Y10T408/895
摘要： A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly 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 an opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.
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公开(公告)号：USD399110S
公开(公告)日：1998-10-06
申请号：US56837
申请日：1996-07-15
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公开(公告)号：USD388305S
公开(公告)日：1997-12-30
申请号：US63805
申请日：1996-12-16
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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
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
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