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    Control device for underground drainage and irrigation network
    5.
    发明授权
    Control device for underground drainage and irrigation network 失效
    地下排水和灌溉网络控制装置

    公开(公告)号：US4948294A

    公开(公告)日：1990-08-14

    申请号：US437618

    申请日：1989-11-17

    申请人： Francois Mercier

    发明人： Francois Mercier

    IPC分类号： E02B11/00

    CPC分类号： E02B11/00

    摘要： The disclosure herein describes a control device for use with an underground drainage and irrigation network formed of a main conduit line and of adjacently disposed water permeable secondary conduit lines. At least one head control stand is used defining a water-collecting chamber with a pair of float members therein. These floats are operatively connected to respective drainage and irrigation control valves. The chamber communicates with an underground duct having a free, perforated end positioned between a pair of secondary lines to collect underground water received in the chamber to influence the floats. The valves are operated by the floats to maintain an underground water table between the two adjacent secondary lines at a level adequate for optimal plant growth.

    摘要翻译： 本文的公开内容描述了一种用于由主导管线和相邻设置的可渗透的次级管道管线形成的地下排水和灌溉网络的控制装置。 使用至少一个头部控制台来限定其中具有一对浮子部件的集水室。 这些浮子可操作地连接到相应的排水和冲洗控制阀。 该室与具有位于一对次级管线之间的空闲穿孔端部的地下管道连通，以收集容纳在室中的地下水以影响浮子。 阀门由浮子操作，以在两个相邻次级管线之间保持足够的水平以使植物最佳生长。

    Control device for underground drainage network
    6.
    发明授权
    Control device for underground drainage network 失效
    地下排水网控制装置

    公开(公告)号：US4890955A

    公开(公告)日：1990-01-02

    申请号：US313495

    申请日：1989-02-22

    申请人： Francois Mercier

    发明人： Francois Mercier

    IPC分类号： E02B11/00

    CPC分类号： E02B11/00

    摘要： The disclosure herein describes a control device for use with an underground drainage network of main collectors and adjacently disposed water-collecting pipes. A head control stand is used defining a water-collecting chamber with a float member therein. The latter is operatively connected to a valve disposed in an associated main collector and is opened as a result of the float member being influenced by the measurement of the water table depth between two adjacently disposed water-collecting pipes of the network. The valve remains opened as long as the level of underground water exceeds a value corresponding to optimal plant growth.

    摘要翻译： 本文的公开内容描述了一种用于主收集器的地下排水网络和相邻设置的集水管的控制装置。 使用头部控制台来限定其中具有浮子部件的集水室。 后者可操作地连接到设置在相关联的主收集器中的阀，并且由于浮子构件受到网络的两个相邻设置的集水管之间的水位深度的测量的影响而打开。 只要地下水的水平超过对应于最佳植物生长的值，阀门就保持打开状态。

    Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof
    10.
    发明授权
    Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof 失效
    光活性二膦，根据拆分外消旋混合物的方法及其用途制备

    公开(公告)号：US06380412B1

    公开(公告)日：2002-04-30

    申请号：US09498466

    申请日：2000-02-04

    申请人： Francois Mathey ,  Frédéric Robin ,  Francois Mercier ,  Michel Spagnol

    发明人： Francois Mathey ,  Frédéric Robin ,  Francois Mercier ,  Michel Spagnol

    IPC分类号： C07F950

    CPC分类号： C07F15/004 ,  B01J31/2226 ,  B01J31/2295 ,  B01J31/2471 ,  B01J2231/645 ,  B01J2531/821 ,  B01J2531/822 ,  C07B53/00 ,  C07C51/36 ,  C07F9/65683 ,  C07F15/0053 ,  C07F15/0066 ,  C07F15/008 ,  C07F15/0093 ,  C07C59/64

    摘要： The present invention relates to optically active diphosphines. It is also targeted at their preparation according to a process for the resolution of the racemic mixture of the said phosphines to optically active isomers. The subject of the invention is new optically active bis[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] diphosphines and a process for resolving the racemic bis[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] mixture which comprises reacting it with a palladium or platinum complex as chiral auxiliary in an organic solvent, thus forming diastereoisomer complexes, and then resolving the said optically pure complexes. The invention also relates to new optically active metal complexes comprising the said phosphines and to their use in a process for the preparation of optically active carboxylic acids and/or derivatives according to a process for the hydrogenation of &agr;,&bgr;-unsaturated carboxylic acids and/or derivatives.

    摘要翻译： 本发明涉及光学活性二膦。 还可以根据将所述膦的外消旋混合物拆分成旋光异构体的方法来制备它们。 本发明的主题是新的光学活性双[1-磷杂-2,3-二苯基-4,5-二甲基降冰片二烯]二膦和一种拆分外消旋双[1-磷杂-2,3-二苯基-4,5 - 二甲基降冰片二烯]混合物，其包括使其与作为手性助剂的钯或铂络合物在有机溶剂中反应，从而形成非对映异构体复合物，然后拆分所述光学纯复合物。 本发明还涉及包含所述膦的新的光学活性金属络合物，以及它们在制备光学活性羧酸和/或衍生物的方法中的用途，根据α，β-不饱和羧酸和/ 或衍生物。