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    • 14. 发明授权
    • Process for impregnating electrical coils
    • 浸渍电线圈的工艺
    • US6103157A
    • 2000-08-15
    • US100005
    • 1998-06-17
    • Dean Tallak BehmUlrich WeidmannPhilip David WillisFelix BleuelHans-Fred BuchmannDieter Glauch
    • Dean Tallak BehmUlrich WeidmannPhilip David WillisFelix BleuelHans-Fred BuchmannDieter Glauch
    • B29C43/18B29C45/14C08K3/00C08L63/00C08L63/02C08L63/04H01B3/40H01F41/12B29C1/26
    • H01F41/12C08K3/0008C08L63/00H01B3/40
    • A process for impregnating an electrical coil which comprises a winding comprising two or more layers consisting of more than one turn of an electrically conducting wire-form material with a polymer material which electrically insulates the individual turns of the wire-form material from one another with the aid of a thermally curable epoxy resin composition, which composition is solid at room temperature and comprises the following constituents:(a) an epoxy resin which is solid at room temperature, selected from(a1) polyglycidyl ethers based on novolaks;(a2) diglycidyl ethers based on bisphenols, and(a3) mixtures of more than one of components (a1) and (a2);(b) a crosslinking agent for component (a);(c) a suitable accelerator for the reaction of component (a) and component (b);(d) from 15 to 70 percent by weight, based on the overall weight of the composition, of filler selected from(d1) calcium carbonate,(d2) quartz flour,(d3) wollastonite whose particles have an average ratio of length to cross-section which is less than 5:1;(d4) mixtures of components (d1), (d2) and (d3) and(d5) mixtures of components (d1), (d2), (d3) and (d4) with other inorganic fillers; and which also preferably comprises(e) from 10 to 60 percent by weight, based on the overall weight of the composition, of inorganic reinforcements in the form of acicular or fibrillar particles with a length of from 0.05 to 2.5 mm which have an average ratio of length to cross-section of 5:1 or more,the overall amount of component (d) and (e) being not more than 80 percent by weight, based on the overall weight of the composition, inter alia does away with the need to use sacrificial moulds and reduces by a multiple the curing time required for completing the coating of the coils, reducing it to the region of a few minutes.
    • 一种用于浸渍电线圈的方法,该电线圈包括由两层或多层组成的绕组,该层由多于一圈的导电线形材料组成,其中聚合物材料将线形材料的各个匝彼此电绝缘, 可热固化的环氧树脂组合物的帮助,该组合物在室温下为固体,并且包含以下组分:(a)在室温下为固体的环氧树脂,其选自(a1)基于酚醛清漆的聚缩水甘油醚; (a2)基于双酚的二缩水甘油醚,和(a3)多于一种组分(a1)和(a2)的混合物; (b)组分(a)的交联剂; (c)用于组分(a)和组分(b)的反应的合适的促进剂; (d)15至70重量%,基于组合物的总重量,填料选自(d1)碳酸钙,(d2)石英粉,(d3)硅灰石,其颗粒的平均长度与交叉的比例 小于5:1的部分; (d4)组分(d1),(d2)和(d3)和(d5)组分(d1),(d2),(d3)和(d4)与其它无机填料的混合物的混合物; 并且还优选包含(e)基于组合物总重量的10至60重量%的长度为0.05至2.5mm的针状或纤维状颗粒形式的无机增强材料,其具有平均比例 (d)和(e)的总量不超过80重量%,基于组合物的总重量,除其他外,不需要 使用牺牲模具并减少完成卷材涂层所需的固化时间,将其减少到几分钟的时间。
    • 18. 发明授权
    • Device for cushioning of compression surfaces
    • 压缩表面缓冲装置
    • US08705689B2
    • 2014-04-22
    • US13351149
    • 2012-01-16
    • Gail LebovicGeorge D. HermannDavid WillisThomas A. Howell
    • Gail LebovicGeorge D. HermannDavid WillisThomas A. Howell
    • A61B6/04
    • A61B6/0414A61B6/04A61B6/0435A61B6/4423A61B6/502
    • According to the present invention, improved methods and apparatus are provided for providing cushioning and other ergonomic surfaces on devices requiring the patient or tissue to be compressed, such as radiography machines, fluoroscopy units, mammography units and the like. In particular a radiolucent pad element is provided for releasable attachment to at least one surface of a compression device to be used under x-ray, for example, during mammography. The pad element of the present invention can be disposable or constructed to be reusable and in some cases may be applied directly to the patient's breast. Furthermore, a cushioned paddle is provided wherein the compression paddle and the cushion can be separately or integrally formed.
    • 根据本发明,提供了改进的方法和装置,用于在要求患者或组织被压缩的装置上提供缓冲和其它符合人体工程学的表面,例如放射照相机,透视单元,乳房X线照相术单元等。 特别地,提供了一种射线可透垫元件,用于可释放地附接到例如在乳房X光照相术期间在x射线下使用的压缩装置的至少一个表面。 本发明的垫元件可以是一次性的或构造为可重复使用的,并且在一些情况下可以直接施加到患者的乳房。 此外,提供了缓冲桨,其中压缩桨和衬垫可以分开地或一体地形成。