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1. 发明授权

US6158135A See-thru engineering instrument 失效
标题翻译：通过工程仪器
公开(公告)号：US6158135A
公开(公告)日：2000-12-12
申请号：US58447
申请日：1998-04-10
申请人： David William Rank
发明人： David William Rank
IPC分类号： B43L7/00
CPC分类号： B43L7/00
摘要： A see-thru engineering instrument has markings defining sets of longitudinal reference lines along its length. The reference lines are disposed inwardly of the side edges, and define segmentation patterns distinct to each set, distinguishing lines of the respective sets from each other. Lines of respective sets are preferably interposed each between respective lines of ones of another set or sets. Line segments in a single instrument, of the like illustrated, can define discrete measurable distances of any one, up to all, of 1/16, 1/8, 3/16, 1/4, 1/2, 3/4, 13/16, 7/8 and 15/16 inch. The back surface of the instrument preferably has a matte finish. The width of the instrument is greater than 3 inches, preferably about 4 inches. The length is greater than 12 inches, preferably about 13 inches. The thickness is preferably about 1/16 inch. The length/width ratio is at least 2/1. The markings on the instrument can include a grid of squares, marked over less than 2/3 of the overall area. The instrument can include at least 4 different scales. In some embodiments, at least one marking line extends at an angle of 45 degrees, or other angle, to one of the side edges. A protractor, having an origin associated with a side edge can be included. Generally, the markings are disposed closer to the back surface than to the front surface.
摘要翻译：一个透明的工程仪器具有沿其长度定义一组纵向参考线的标记。参考线设置在侧边缘的内侧，并且限定与每个组不同的分割图案，将各组的区分线彼此区分开。各组的线优选地插入在另一组或组的相应线之间。如图所示的单个仪器中的线段可以定义任何一个，直到全部为+ E，fra 1/16 + EE，+ E，fra 1/8 + EE，+ E，fra 3/16 + EE，+ E，fra 1/4 + EE，+ E，fra 1/2 + EE，+ E，fra 3/4 + EE，+ E，fra 13/16 + EE，+ E，fra 7/8 + EE和+ E，fra 15/16 + EE英寸。仪器的背面优选具有无光泽的表面。仪器的宽度大于3英寸，最好约4英寸。长度大于12英寸，优选约13英寸。厚度优选为约+ E，fra 1/16 + EE英寸。长/宽比至少为2/1。仪器上的标记可以包括标注在小于+ E，整个区域的2/3 + EE的正方形网格。仪器可以包含至少4个不同的刻度。在一些实施例中，至少一个标记线以与其中一个侧边缘成45度角或其他角度的角度延伸。可以包括具有与侧边缘相关联的原点的量角器。通常，标记设置成比前表面更靠近后表面。

2. 发明授权

US06357130B1 Drafting template for preparing axonometric drawings 失效
标题翻译：用于准备轴测图的起草模板
公开(公告)号：US06357130B1
公开(公告)日：2002-03-19
申请号：US09309144
申请日：1999-05-10
申请人： David William Rank
发明人： David William Rank
IPC分类号： B43L1314
CPC分类号： B43L13/14
摘要： A drafting template for preparing axonometric drawings or sketches comprising a unitary, clear, substantially planar, chevron-shaped body having an apex and an antapex, an upper face, a lower face, and at least six side edges. Various embodiments of the template provide for preparing trimetric, dimetric and isometric drawings or sketches. The template is provided with indicia on an upper or lower face thereof for measuring and scaling the drawing.
摘要翻译：一种用于制备轴测图或草图的牵伸模板，其包括具有顶点和安特克斯，上表面，下表面和至少六个侧边缘的单一，清晰，基本上平面的人字形体。该模板的各种实施例提供了准备三维，二进制和等轴测图或草图。该模板在其上表面或下表面上设置有用于测量和缩放绘图的标记。

3. 发明授权

US06434844B1 See-thru engineering instrument 失效
标题翻译：通过工程仪器
公开(公告)号：US06434844B1
公开(公告)日：2002-08-20
申请号：US09706979
申请日：2000-11-06
申请人： David William Rank
发明人： David William Rank
IPC分类号： B43L700
CPC分类号： B43L7/00
摘要： A see-thru engineering instrument has markings defining sets of longitudinal reference lines along its length. The reference lines are disposed inwardly of the side edges, and define segmentation patterns distinct to each set, distinguishing lines of the respective sets from each other. Lines of respective sets are preferably interposed each between respective lines of ones of another set or sets. Line segments in a single instrument, of the like illustrated, can define discrete measurable distances of any one, up to all, of {fraction (1/16)}, ⅛, {fraction (3/16)}, ¼, ½, ¾, {fraction (13/16)}, ⅞ and {fraction (15/16)} inch. The back surface of the instrument preferably has a matte finish. The width of the instrument is greater than 3 inches, preferably about 4 inches. The length is greater than 12 inches, preferably about 13 inches. The thickness is preferably about {fraction (1/16)} inch. The length/width ratio is at least {fraction (2/1)}. The markings on the instrument can include a grid of squares, marked over less than ⅔ of the overall area. The instrument can include at least 4 different scales. In some embodiments, at least one marking line extends at an angle of 45 degrees, or other angle, to one of the side edges. A protractor, having an origin associated with a side edge can be included. Generally, the markings are disposed closer to the back surface than to the front surface.
摘要翻译：一个透明的工程仪器具有沿其长度定义一组纵向参考线的标记。参考线设置在侧边缘的内侧，并且限定与每个组不同的分割图案，将各组的区分线彼此区分开。各组的线优选地插入在另一组或组的相应线之间。如图所示的单个仪器中的线段可以定义任何一个（分数（1/16）}，⅛，{分数（3/16）}，¼，½， ¾，{分数（13/16）}，⅞和{分数（15/16）}英寸。仪器的背面优选具有无光泽的表面。仪器的宽度大于3英寸，最好约4英寸。长度大于12英寸，优选约13英寸。厚度优选约为{分数（1/16）}英寸。长/宽比至少为{fraction（2/1）}。仪器上的标记可以包括一个正方形网格，标记在整个区域的小于。。仪器可以包含至少4个不同的刻度。在一些实施例中，至少一个标记线以与其中一个侧边缘成45度角或其他角度的角度延伸。可以包括具有与侧边缘相关联的原点的量角器。通常，标记设置成比前表面更靠近后表面。

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