Method of forming precisely curved surfaces
    11.
    发明授权
    Method of forming precisely curved surfaces 失效
    形成精确曲面的方法

    公开(公告)号:US4627256A

    公开(公告)日:1986-12-09

    申请号:US106985

    申请日:1979-12-26

    申请人: Jon H. Myer

    发明人: Jon H. Myer

    IPC分类号: B21D53/88 B21D26/02 B21D22/10

    CPC分类号: B21D53/883 Y10T29/49805

    摘要: Precisely curved, lightweight and low-cost reflectors for electromagnetic radiation are fabricated by use of a tool and a process in which a blank is planar stretched by uniformly applied isotropic and radially extending forces followed by deformation of the stretched blank to a precisely curved surface.

    摘要翻译: 通过使用工具和工艺来制造用于电磁辐射的精确弯曲的,轻质的和低成本的反射器,其中坯料通过均匀施加的各向同性和径向延伸的力,随后被拉伸的坯料变形成精确弯曲的表面而被平面拉伸。

    Method for making a magnetic shield
    16.
    发明授权
    Method for making a magnetic shield 失效
    制造磁屏蔽的方法

    公开(公告)号:US4792317A

    公开(公告)日:1988-12-20

    申请号:US879948

    申请日:1986-06-30

    申请人: John L. Sipsma

    发明人: John L. Sipsma

    摘要: The specification discloses a method for forming thin metal, television tube magnetic shields by blanking "lazy C" shaped blanks from a strip of thin metal, forming the blanks around a truncated pyramidal form so their edges overlap, mash seam welding the overlapping edges so as to eliminate open space between the overlapping portions and forming a peripheral flange by bending the outer edge of the thus formed truncated pyramidal member.

    摘要翻译: 该说明书公开了一种通过从薄金属条上冲切“惰性C”形坯料形成薄金属电视机磁屏蔽的方法,形成围绕截锥形的边缘重叠的坯料,将粉末缝焊接在重叠边缘上,以便 以消除重叠部分之间的开放空间并且通过弯曲由此形成的截头棱锥体构件的外边缘而形成周边凸缘。

    Patterned diffuse reflecting
    17.
    发明授权
    Patterned diffuse reflecting 失效
    图案差异反射

    公开(公告)号:US3706218A

    公开(公告)日:1972-12-19

    申请号:US3706218D

    申请日:1970-05-25

    申请人: WILLIAM B ELMER

    发明人: ELMER WILLIAM B

    摘要: A reflecting surface provides a controlled degree of diffusion by forming a number of generally congruent depressions of predetermined depth and shape. The surface prior to forming the depressions is typically essentially a specular reflecting surface. The depressions may be formed by placing the specular reflecting sheet between two opposed dies having intermeshing projections, each projection typically covering about one-third the area between adjacent projections and of generally pyramidal shape with rounded tops.

    摘要翻译: 反射表面通过形成多个具有预定深度和形状的大致一致的凹陷来提供受控的扩散程度。 在形成凹陷之前的表面通常基本上是镜面反射表面。 凹陷可以通过将镜面反射片放置在具有相互啮合的突起的两个相对的模具之间来形成,每个突起通常覆盖相邻突起之间的大约三分之一的区域,并且具有圆形顶部的大体金字塔形形状。