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    • 1. 发明授权
    • Heat exchanger tube support
    • 热交换器管支撑
    • US07028765B2
    • 2006-04-18
    • US10995664
    • 2004-11-23
    • George J. WilliamsWilliam A. PritzPeter J. PritzThomas J. Pritz, Jr.Dorothy C. Pritz
    • George J. WilliamsWilliam A. PritzPeter J. PritzThomas J. Pritz, Jr.Dorothy C. Pritz
    • F28F9/013
    • F28F9/0135
    • A tube support device is presented. The present invention includes at least two first plates and at least two second plates each having a plurality of slots mutually arranged and aligned so as to allow four or more plates to interlock and form a grid of depth-wise planar extent thereby providing at least one square-shaped opening. Each first plate and each second plate have a plurality of u-shaped nodules. At least one u-shaped nodule along each first plate and along each second plate extends into each square-shaped opening. U-shaped nodules are disposed parallel to and contacting a tube passing through each square-shaped opening. The grid is surrounded by a fluid with a flow field parallel to each tube and may include a secondary flow field crosswise disposed with respect to each tube. In yet another embodiments, the present invention is positioned within a shell and tube heat exchanger so as to support a plurality of tubes passing there through.
    • 提供管支撑装置。 本发明包括至少两个第一板和至少两个第二板,每个第二板具有相互排列和对准的多个槽,以便允许四个或更多个板互锁并形成一个深度方向的平面盘区,从而提供至少一个 方形开口。 每个第一板和每个第二板具有多个u形结节。 沿着每个第一板和沿着每个第二板的至少一个u形结节延伸到每个方形开口中。 U形结节平行于通过每个方形开口的管接触。 格栅由流体围绕,流体具有平行于每个管的流场,并且可以包括相对于每个管道横向设置的二次流场。 在另一个实施例中,本发明定位在壳管式热交换器内,以支撑通过其的多个管。
    • 2. 发明授权
    • Sheet rock cutting tool
    • 刨花板切割工具
    • US5979063A
    • 1999-11-09
    • US45143
    • 1998-03-20
    • William A. Pritz
    • William A. Pritz
    • B26B29/06
    • B26B29/06
    • A sheet rock measuring and cutting device, comprising: a T-square arm for abutment with an edge of a piece of sheet rock; a base scale arm positioned within the T-square arm for selective sliding interengagement therewith; and a sliding scale arm positioned within the base scale arm for selective sliding interengagement therewith. The sliding scale arm includes a cutting tool engagement member for receipt and positioning of a cutting tool at a measured distance from the edge of the sheet rock.
    • 一种片状岩石测量和切割装置,包括:用于与片状岩石的边缘邻接的T形臂; 定位在T形臂内的基准尺度臂,用于与其相互选择性地滑动; 以及定位在基准尺度臂内的滑动标尺臂,用于与其相互选择性滑动。 滑动秤臂包括用于接收和定位切割工具的切割工具接合构件,该切割工具距离片状岩石的边缘有一定距离。