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公开(公告)号：US5041788A
公开(公告)日：1991-08-20
申请号：US391426
申请日：1989-08-09
CPC分类号： G01R33/34046 , G01R33/3628 , G01R33/34007 , G01R33/3678 , G01R33/3685
摘要： Main field magnets (10) create a static magnetic field through an examination region that is surrounding a resonator coil assembly (22). The resonator coil assembly includes a dielectric cylinder (60) on which a plurality of foil antenna or coil segments (30) are mounted. Pairs of adjustable tuning and matching capacitors (28, 34) are mounted on opposite sides of the cylinder in electric connection with the foil segments. The tuning capacitors are connected with a first pair of driven gears (90) disposed on one side of an annular reinforcing ring (64) and the matching capacitors are connected with a second pair of driven gears (100) mounted on the other side of the reinforcing ring. First and second ring gears (66, 68) are mounted at three points on opposite sides of the reinforcing ring each at its respective drive gear and pair of driven gears. In this manner, rotation of the appropriate drive gear rotates the respective ring gear about the cylinder causing concurrent rotation of the associated driven gears such that the associated pair of capacitors are adjusted concurrently by the same amount. Optionally, keeper assemblies (110) may be connected to the annular reinforcing ring to prevent circumferential deflection of the ring gears.
摘要翻译： 主场磁体（10）通过围绕谐振器线圈组件（22）的检查区产生静态磁场。 谐振器线圈组件包括介质筒（60），多个箔天线或线圈段（30）安装在该介质筒上。 一对可调节调谐和匹配电容器（28,34）安装在与箔片段电连接的气缸的相对侧上。 调谐电容器与设置在环形加强环（64）的一侧上的第一对从动齿轮（90）连接，并且匹配电容器与安装在第二对驱动齿轮的另一侧上的第二对从动齿轮（100）连接 加强环。 第一和第二环形齿轮（66,68）在加强环的相对侧的三个位置分别安装在其各自的驱动齿轮和一对从动齿轮上。 以这种方式，适当的驱动齿轮的旋转使相应的环形齿轮围绕气缸旋转，引起相关联的从动齿轮的同时旋转，使得相关的一对电容器被同时调整相同的量。 可选地，保持器组件（110）可以连接到环形加强环，以防止环形齿轮的周向偏转。
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公开(公告)号：US4165988A
公开(公告)日：1979-08-28
申请号：US865054
申请日：1977-12-27
申请人： Kenneth J. Page , Michael A. Scott
发明人： Kenneth J. Page , Michael A. Scott
CPC分类号： C09D10/00
摘要： Correction compositions for the masking of erroneous typed images preliminary to the typing of correct images thereover, characterized by the presence of a volatile solvent mixture having a predetermined evaporation rate at ordinary room temperatures, a high flash point and providing vapors which are non-flammable and non-toxic as a result of drying of the compositions under normal office conditions. The solvent mixtures used according to the present invention comprise methyl chloroform and perchlorethylene.
摘要翻译： 用于掩盖错误类型图像的校正组合物，其初步是对其上的正确图像的分类，其特征在于在普通室温下具有预定蒸发速率的挥发性溶剂混合物，高闪点和提供不易燃的蒸汽， 由于在正常办公条件下干燥组合物而无毒。 根据本发明使用的溶剂混合物包括甲基氯仿和全氯乙烯。
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