公开(公告)号：US07469483B2

公开(公告)日：2008-12-30

申请号：US11558865

申请日：2006-11-10

申请人： Roger Neil Martin ,  Dennis Hefner

发明人： Roger Neil Martin ,  Dennis Hefner

IPC分类号： G01D21/00

CPC分类号： B25H7/005 ,  B25H7/045 ,  G01C15/08

摘要： The invention is directed to a single or multiple piece precision geometric device for performing a variety of geometric functions such as locating the precise center of circular member and projecting the determined center to a distant surface, performing squaring functions (inside corners and outside corners), drawing numerous types of polygons, constructing perfect 45 degree angles, right triangles, squares of various sizes, perfectly formed rhombuses and perfectly symmetric isosceles triangles.The device may be in the shape of a cross with arms that extend outwardly from a center hole. Such arms may be foldable and/or removable to allow the geometric device to be better configured for a particular task.

摘要翻译： 本发明涉及用于执行各种几何功能的单件或多件精密几何装置，例如定位圆形构件的精确中心并将确定的中心投影到远方表面，执行平方功能（内角和外角）， 绘制多种类型的多边形，构建完美的45度角，直角三角形，各种尺寸的正方形，完美形成的菱形和完美对称的等腰三角形。 该装置可以是与中心孔向外延伸的臂交叉的形状。 这种臂可以是可折叠的和/或可拆卸的，以允许几何装置被更好地配置为特定的任务。

公开(公告)号：US20070084073A1

公开(公告)日：2007-04-19

申请号：US11558865

申请日：2006-11-10

申请人： Roger Martin ,  Dennis Hefner

发明人： Roger Martin ,  Dennis Hefner

IPC分类号： G01D21/00

CPC分类号： B25H7/005 ,  B25H7/045 ,  G01C15/08

摘要： The invention is directed to a single or multiple piece precision geometric device for performing a variety of geometric functions such as locating the precise center of circular member and projecting the determined center to a distant surface, performing squaring functions (inside corners and outside corners), drawing numerous types of polygons, constructing perfect 45 degree angles, right triangles, squares of various sizes, perfectly formed rhombuses and perfectly symmetric isosceles triangles. The device may be in the shape of a cross with arms that extend outwardly from a center hole. Such arms may be foldable and/or removable to allow the geometric device to be better configured for a particular task.

摘要翻译： 本发明涉及用于执行各种几何功能的单件或多件精密几何装置，例如定位圆形构件的精确中心并将确定的中心投影到远方表面，执行平方功能（内角和外角）， 绘制多种类型的多边形，构建完美的45度角，直角三角形，各种尺寸的正方形，完美形成的菱形和完美对称的等腰三角形。 该装置可以是与中心孔向外延伸的臂交叉的形状。 这种臂可以是可折叠的和/或可拆卸的，以允许几何装置被更好地配置为特定的任务。