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107 条记录 (耗时 0.018 秒)

    Apparatus for collecting body fluid
    71.
    发明授权
    Apparatus for collecting body fluid 失效
    收集身体液体的装置

    公开(公告)号：US4112949A

    公开(公告)日：1978-09-12

    申请号：US741733

    申请日：1976-11-15

    申请人： Arthur Lee Rosenthal ,  Marvin Alpern ,  Charles Edward Meisch

    发明人： Arthur Lee Rosenthal ,  Marvin Alpern ,  Charles Edward Meisch

    IPC分类号： A61M1/00

    CPC分类号： A61M1/0011

    摘要： Apparatus for collecting body fluid utilizes a condition of negative pressure in a chamber for drawing body fluid from an area of a wound at a relatively constant flow rate. The apparatus includes a piston assembly movable in a housing from a first to a second position under forces of atmospheric pressure acting on the piston assembly. The apparatus further comprises an assembly for enabling operation of the piston assembly including at least one cylinder and piston movable therein by pulling on a hand gripping element attached to the piston to develop a partial vacuum in the cylinder. The piston assembly includes a diaphragm which is movable for maintaining the chamber sealed except through a port adapted for receipt of a tube connecting with said wound. The evacuator apparatus may be reused by emptying body fluid from the chamber and reenabling the piston assembly.

    Magnetic recording
    72.
    发明授权
    Magnetic recording 失效
    磁记录

    公开(公告)号：US4023204A

    公开(公告)日：1977-05-10

    申请号：US622514

    申请日：1975-10-15

    申请人： Cyril Arthur Lee

    发明人： Cyril Arthur Lee

    IPC分类号： G06K1/12 ,  G06K19/12 ,  G07F7/08 ,  G11B5/02 ,  G06K19/06 ,  G11B25/04

    CPC分类号： G06K1/125 ,  G06K19/12 ,  G07F7/086

    摘要： Magnetic record media including permanent structures of aligned acicular particles have been proposed as a means of identifying and authenticating a medium. A method of recording and reading out information on such media without interference from the permanent structure remanence variation is described. Suitable forms of magnetic record media and their manufacture are described. The use of the media and method for security documents such as credit cards is also described.

    摘要翻译： 已经提出了包括定向针状颗粒的永久结构的磁记录介质作为鉴定和鉴定介质的手段。 描述了在这种介质上记录和读出信息而不受永久性结构残余变化的干扰的方法。 描述了磁记录介质的适当形式及其制造。 还描述了使用媒体和安全文件如信用卡的方法。