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    • 81. 发明授权
    • Hinged laminated map and method for making
    • 铰链叠层图和制作方法
    • US5273432A
    • 1993-12-28
    • US51535
    • 1993-04-23
    • David White
    • David White
    • G09B29/04B42D15/04
    • G09B29/04
    • A folding laminated map with an improved hinge and image retention is described. The map, or composite image, is separated into two or more discrete partial images or panels and printed on a single sheet of a suitable material. The discrete panels contain all the graphic information contained in the composite image, but the panels are spaced from adjacent panels in the composite image. The space between panels is a blank area on the printed sheet which will become the hinge. Slot-like portions are cut out of the blank area on the printed sheet in such a way as to leave connecting tabs between adjacent partial images or panels. The slots are very narrow enabling substantial juxtaposition of adjacent panels. After the slots are cut out of the hinge portion of the printed sheet, the single sheet containing the panels is passed through a laminating device with the hinge parallel to the direction of travel through the laminator. Because the slot is so narrow, the sheets of laminating film on the top and bottom trap air within the slot(s). The narrowness of the slot(s) together with the direction of travel of the sheet through the laminator prevent the top and bottom layers of laminating film from contacting each other in the hinge area. The trapped air acts as a compressible section reducing friction and reducing wear and extending the durability of the map.
    • 描述了具有改进的铰链和图像保持的折叠层叠贴图。 地图或合成图像被分成两个或更多个离散的部分图像或面板,并且印刷在单张合适的材料上。 离散面板包含复合图像中包含的所有图形信息,但面板与合成图像中的相邻面板间隔开。 面板之间的空间是打印纸上的空白区域,其将成为铰链。 从打印纸上的空白区域切出槽形部分,以便在相邻的部分图像或面板之间留下连接片。 狭槽非常窄,使得相邻面板具有相当的并置性。 在从打印纸的铰链部分切出槽之后,包含板的单个片材通过层压装置,铰链平行于穿过层压机的行进方向。 因为槽狭窄,顶部和底部的层压薄膜片在槽内捕获空气。 狭缝的狭窄以及片材通过层压机的行进方向阻止层压膜的顶层和底层在铰链区域中彼此接触。 被捕获的空气用作可压缩部分,减少摩擦并减少磨损并延长地图的耐久性。
    • 82. 发明授权
    • Adjustable basketball goal
    • 可调篮球目标
    • US4395040A
    • 1983-07-26
    • US367441
    • 1982-04-12
    • David White
    • David White
    • A63B63/08
    • A63B63/083A63B2208/12A63B2225/093Y10T403/32959
    • An adjustable basketball goal is mounted on a parallelogram supporting structure that permits the goal to be adjusted to different heights from 6 to 10 feet. The goal is raised and lowered by threaded members between portions of the supporting structure that provide sufficient mechanical advantage so that the adjustment can be easily made. The supporting structure also is designed to permit the goal to be secured directly to the supporting structure rather than just the backboard thereby minimizing the breaking off of the goals by a player hanging onto the rim. An adjustable length tension member extends between front and rear vertical supports of the supporting structure to take up slack in the structure as its pivotal connections wear with age.
    • 可调节的篮球目标安装在平行四边形支撑结构上,允许将目标调整到6至10英尺的不同高度。 目标是通过螺纹构件在支撑结构的部分之间升高和降低,其提供足够的机械优点,使得可以容易地进行调节。 支撑结构还被设计成允许目标被直接固定到支撑结构,而不仅仅是靠在背板上,从而最小化悬挂在轮辋上的玩家的目标的断裂。 可调长度的张力构件在支撑结构的前后垂直支撑件之间延伸,以随着其枢轴连接随着年龄而磨损,从而在结构中占据松弛。
    • 83. 发明授权
    • Zirconium alloy fuel cladding for operation in aggressive water chemistry
    • 锆合金燃料包层用于侵蚀性水化学
    • US09139895B2
    • 2015-09-22
    • US10935157
    • 2004-09-08
    • David WhiteDaniel R. LutzYang-Pi LinJohn SchardtGerald Potts
    • David WhiteDaniel R. LutzYang-Pi LinJohn SchardtGerald Potts
    • C22F1/18C22C16/00
    • C22F1/186C22C16/00
    • Disclosed herein are zirconium-based alloys and methods of fabricating nuclear reactor components, particularly fuel cladding tubes, from such alloys that exhibit improved corrosion resistance in aggressive coolant compositions. The fabrication steps include a late-stage β-treatment on the outer region of the tubes. The zirconium-based alloys will include between about 1.30 and 1.60 wt % tin; between about 0.06 and 0.15 wt % chromium; between about 0.16 and 0.24 wt % iron, and between 0.05 and 0.08 wt % nickel, with the total content of the iron, chromium and nickel comprising above about 0.31 wt % of the alloy and will be characterized by second phase precipitates having an average size typically less than about 40 nm. The final finished cladding will have a surface roughness of less than about 0.50 μm Ra and preferably less then about 0.10 μm Ra.
    • 本文公开了锆基合金和从这种在侵蚀性冷却剂组合物中表现出改进的耐腐蚀性的合金制造核反应堆部件,特别是燃料包壳管的方法。 制造步骤包括在管的外部区域的后期和后处理。 锆基合金将包括约1.30至1.60重量%的锡; 约0.06至0.15重量%的铬; 约0.16至0.24重量%的铁,以及0.05至0.08重量%的镍,其中铁,铬和镍的总含量高于合金的约0.31重量%,其特征在于具有平均尺寸的第二相沉淀 通常小于约40nm。 最终完成的包层将具有小于约0.50μmRa的表面粗糙度,优选小于约0.10μmRa的表面粗糙度。