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    • 1. 发明授权
    • Method for tip forming peelable PTFE tubing
    • 尖端成型可剥离PTFE管的方法
    • US06358460B1
    • 2002-03-19
    • US09472329
    • 1999-12-23
    • William E. Hunt, Jr.George PurtellPeter D. Spohn
    • William E. Hunt, Jr.George PurtellPeter D. Spohn
    • B29C4704
    • B32B1/08A61M25/001A61M25/0045B29C57/00B29D23/001B29K2027/18B29L2009/00B29L2023/007B32B7/06B32B27/08B32B27/322B32B2327/18B32B2535/00
    • Methods are disclosed for producing multi-layer peelable sheaths having formed tips, for use as medical introducer devices, e.g., sheaths for inserting a catheter or the like into a patient. The methods include the steps of preparing a first composition blend for forming an inner layer of the multi-layer sheath, preparing a second composition blend for forming an outermost layer of the multi-layer sheath, combining the first and the second composition blends into a multi-layer pre-form, processing the multi-layer pre-form for producing tubing, and forming a tip at one end of the tubing using a thermal process, thereby producing the multi-layer sheath having the inner layer, the outermost layer, and the formed tip. The methods of the present invention include adding a detectable material to the blend used for making the inner layer for facilitating external visualization of the multi-layer sheath, thereby achieving a sheath with a formed tip having no visible discoloration. The methods also incorporate a reduced sintering process for achieving an optimally cured, peelable sheath having excellent tear properties.
    • 公开了用于生产具有成形尖端的多层可剥离护套的方法,用作医疗引入器装置,例如用于将导管等插入患者体内的护套。 所述方法包括制备用于形成多层护套内层的第一组合物共混物的步骤,制备用于形成多层护套的最外层的第二组合物共混物,将第一和第二组合物共混物合并成 处理用于生产管道的多层预成型件,以及使用热处理在管道的一端形成尖端,由此制备具有内层,最外层的多层护套, 和形成的尖端。 本发明的方法包括将可检测材料添加到用于制造内层的共混物中,以促进多层护套的外观可视化,从而实现具有不可见变色的成形尖端的护套。 所述方法还包括用于实现具有优异的撕裂性能的最佳固化的可剥离护套的减少烧结工艺。
    • 2. 发明授权
    • Web indicia for synchronizing control apparatus for electrophotographic
apparatus utilizing digital computer
    • 用于使用数字计算机同步用于电子照相设备的控制装置的网标
    • US4025186A
    • 1977-05-24
    • US550104
    • 1975-02-13
    • William E. Hunt, Jr.John L. ConninDouglas J. Steelman
    • William E. Hunt, Jr.John L. ConninDouglas J. Steelman
    • G03G21/14G03G15/00
    • G03G21/145
    • Electrophotographic copying apparatus is disclosed having an elongated electrosensitive web defining a plurality of selectable image areas and having a plurality of perforations formed along an edge therein and movable along an endless path relative to a plurality of actuable work stations disposed along the path. The work stations are operative when actuated to perform a work operation on a selected image area of the web, respectively. The apparatus includes means disposed at a fixed location along the path for sensing the perforations to produce signals, a logic and control unit having a programmable computer with a stored program and responsive to such perforation signals for actuating the work stations in accordance with the program to cause the work stations to perform work operations on the web in timed relation to movement of selected image areas along the path respectively.
    • 公开了电子照相复印设备,其具有限定多个可选择图像区域的细长电感幅材,并且具有沿着其中的边缘形成的多个穿孔,并且沿着沿着路径设置的多个可致动工作站沿着环形路径移动。 工作站在被致动时可操作,以分别对所选择的图像区域执行工作操作。 该装置包括沿着路径设置在用于感测穿孔以产生信号的固定位置处的装置,具有可编程计算机的逻辑和控制单元,其具有存储的程序,并响应于这种穿孔信号,以根据程序致动工作站 导致工作站在网络上执行与所选择的图像区域沿着路径的移动的定时关系的工作操作。