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    Liquid level sensing circuitry
    23.
    发明授权
    Liquid level sensing circuitry 失效
    液位检测电路

    公开(公告)号：US4385290A

    公开(公告)日：1983-05-24

    申请号：US296064

    申请日：1981-08-25

    Applicant: Jimmy L. Fiala

    Inventor： Jimmy L. Fiala

    IPC: G01F23/24 ,  G08B21/00

    CPC classification number: G01F23/243

    Abstract: Liquid level sensing circuitry useable for detecting the presence of an acceptable or unacceptable level for a liquid, such as engine oil. Prior to termination of the operation of the engine, the circuitry presents an unacceptable level indication at a control point. After completion of a time delay following termination of engine operation, an acceptable level must be presented for a time to cause an acceptable level indication at the control point which is maintained pending initiation of engine operation. Upon initiation of engine operation a first discernible indication is provided for a time period if the control point presents an unacceptable level indication with a second discernible indication provided for such time period if the control point presents an acceptable level indication.

    Abstract translation: 液位检测电路可用于检测液体（例如机油）的可接受或不可接受的水平的存在。 在发动机操作终止之前，电路在控制点处呈现不可接受的电平指示。 在发动机运转结束后延时完成后，必须提出一个可接受的水平，以便在发动机运转开始时保持在控制点处的可接受水平指示。 在启动发动机操作时，如果控制点呈现不可接受的电平指示，则在一段时间内提供第一可识别的指示，如果控制点呈现可接受的电平指示，则提供这样的时间周期的第二可识别的指示。

    Process for the preparation of 4-arylthioanilines
    25.
    发明授权
    Process for the preparation of 4-arylthioanilines 失效
    4-芳基硫代苯胺的制备方法

    公开(公告)号：US4331817A

    公开(公告)日：1982-05-25

    申请号：US225739

    申请日：1981-01-16

    Applicant: James R. Throckmorton

    Inventor： James R. Throckmorton

    IPC: C07C85/00 ,  C07C85/24

    CPC classification number: C07C319/14

    Abstract: A process for the preparation of a 4-arylthioaniline from the corresponding 4-unsubstituted aniline which comprises reacting the latter with an alkali metal thiocyanate in the presence of halogen to provide the 4-thiocyanoaniline, reacting it with an alkali metal sulfide to convert the thiocyano moiety to an alkali metal mercaptide group followed by heating with cuprous oxide then with an aryl halide to form the desired product.

    Abstract translation: 从相应的4-未取代的苯胺制备4-芳基硫代苯胺的方法，包括在卤素存在下使后者与碱金属硫氰酸盐反应，得到4-氰基氰胺，与碱金属硫化物反应，将硫氰酸 部分与碱金属硫醇盐基团接触，随后用氧化亚铜加热，然后用芳基卤化物加热形成所需产物。

    Immunoassay
    26.
    发明授权
    Immunoassay 失效
    免疫测定

    公开(公告)号：US4322495A

    公开(公告)日：1982-03-30

    申请号：US129357

    申请日：1980-03-11

    Applicant: Kenneth H. Kato

    Inventor： Kenneth H. Kato

    IPC: G01N33/53 ,  G01N33/543 ,  G01N33/54

    CPC classification number: G01N33/5308 ,  G01N33/54353 ,  Y10S435/81 ,  Y10S435/975

    Abstract: An immunoassay for the detection of antibodies for canine heartworm (D. immitis) in the blood serum of dogs by immobilizing D. immitis microfilariae on a solid support which is then inoculated with a sample of the blood serum being tested, incubated and washed to remove unreacted material then developed utilizing an enzyme-labeled indicating anti-antibody reagent and a substrate therefor. Also disclosed is a related method for detecting canine heartworm microfilariae in canine blood.

    Abstract translation: 用于通过将D.Imitis microilariae固定在固体支持物上来检测狗血清中的犬心脏病（D.immitis）的抗体的免疫测定法，然后用待测血清的样品接种，温育并洗涤以除去 然后利用酶标记的指示抗体抗体试剂及其底物显影出未反应的物质。 还公开了用于在犬血液中检测犬心orm丝虫的相关方法。

    Sterility indicating device
    27.
    发明授权
    Sterility indicating device 失效
    无菌指示装置

    公开(公告)号：US4289088A

    公开(公告)日：1981-09-15

    申请号：US145214

    申请日：1980-04-29

    Applicant: John V. Scibelli

    Inventor： John V. Scibelli

    IPC: G01K3/00 ,  G01K3/02 ,  G01K11/06

    CPC classification number: G01K11/06 ,  G01K3/00 ,  G01K3/02

    Abstract: A device for indicating the attainment of a sterile condition in an autoclave is described. The device provides a yes/no indication of the attainment of sterility through the use of a fusible material to prevent premature indication. The fusible material has the formula ##STR1## wherein said --OR.sup.1 group is located ortho or meta to said ##STR2##

    Abstract translation: 描述了用于指示在高压釜中达到无菌状态的装置。 该装置通过使用易熔材料提供无菌性的“是/否”指示，以防止过早指示。 可熔材料具有公式，其中所述-OR1基团位于所述的邻位或间位

    Controlled sensitivity monitoring devices
    28.
    发明授权
    Controlled sensitivity monitoring devices 失效
    受控灵敏度监控装置

    公开(公告)号：US4158958A

    公开(公告)日：1979-06-26

    申请号：US913945

    申请日：1978-06-09

    Applicant: David L. Braun

    Inventor： David L. Braun

    IPC: G01N1/22 ,  G01N33/00 ,  G01N31/00

    CPC classification number: G01N33/0011

    Abstract: A controlled sensitivity device for measuring the amount of a selected component in fluid mixture is disclosed. A collecting layer is disposed within a chamber into which the fluid mixture is allowed to diffuse. Sensitivity of the device is controlled by varying the ratio of the chamber entrance area to the frontal surface area of the collecting layer and the shape of the chamber to cause divergence of convergence of molecules within the chamber.

    Abstract translation: 公开了一种用于测量流体混合物中所选组分的量的受控灵敏度装置。 收集层设置在允许流体混合物扩散到的室内。 通过改变室入口面积与收集层的正面面积的比例和室的形状来控制装置的灵敏度，从而引起室内分子会聚的发散。

    Solid phase extraction medium
    29.
    再颁专利
    Solid phase extraction medium 失效
    固相萃取介质

    公开(公告)号：USRE36811E

    公开(公告)日：2000-08-08

    申请号：US298746

    申请日：1994-10-24

    Applicant: Craig G. Markell ,  Donald F. Hagen ,  James D. Luedtke

    Inventor： Craig G. Markell ,  Donald F. Hagen ,  James D. Luedtke

    IPC: B01D15/00 ,  B01D15/04 ,  B01D15/08 ,  B01J20/28 ,  G01N30/52

    CPC classification number: B01J20/28033 ,  B01D15/00 ,  B01D15/08 ,  B01J20/28028 ,  B01J20/28052 ,  G01N2030/527 ,  G01N2030/528

    Abstract: A method for isolating an environmentally hazardous organic contaminant from a fluid utilizes a solid phase extraction medium comprises a PTFE fibril matrix, and sorptive particles enmeshed in said matrix comprising more than 30 and up to 100 weight percent of porous organic particles, and less than 70 to 0 weight percent of porous (organic-coated or uncoated) inorganic particles, the ratio of sorptive particles to PTFE being in the range of 40:1 to 1:4 by weight. The extraction medium is useful in pesticide, phenolics, and residue of explosives separations. The separations can be efficiently performed in a stacked disk format.

    Abstract translation: 从流体中分离环境有害的有机污染物的方法利用固相萃取介质，其包括PTFE原纤维基质和包含在所述基质中的吸附颗粒，其包含多于30重量％至多100重量％的多孔有机颗粒，并且小于70 至0重量％的多孔（有机涂覆或未涂覆的）无机颗粒，吸附性颗粒与PTFE的重量比在40:1至1:4的范围内。 提取介质可用于农药，酚类和爆炸物分离残留物。 可以以堆叠的盘格式有效地执行分离。

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