Methods of mediating female fertility in plants
    41.
    发明授权
    Methods of mediating female fertility in plants 失效
    介导植物雌性生育力的方法

    公开(公告)号:US06297426B1

    公开(公告)日:2001-10-02

    申请号:US09059958

    申请日:1998-04-14

    IPC分类号: A01H500

    CPC分类号: C12N15/8289 C07K14/415

    摘要: A controllably constitutively female sterile plant is provided. A gene critical to female fertility is identified and the native gene inactivated. The gene is cloned, linked to an inducible promoter and inserted into the plant. The result is a plant that is constitutively female sterile with inducible female fertility.

    摘要翻译: 提供了可控的组成型雌性不育植物。 鉴定出对雌性生殖力至关重要的基因,天然基因失活。 将该基因克隆,连接到诱导型启动子并插入植物中。 结果是一种具有诱导性雌性生殖力的组成型雌性不育的植物。

    Cat litter screening device
    46.
    发明授权
    Cat litter screening device 失效
    猫砂筛选装置

    公开(公告)号:US5012765A

    公开(公告)日:1991-05-07

    申请号:US516355

    申请日:1990-04-30

    IPC分类号: A01K1/01

    CPC分类号: A01K1/0114

    摘要: An improved animal waste collection and screening device having two litter pans in opposed orientation, an opened face of a first litter pan in facing arrangement with an open face of the second litter pan with a screen member in interposed relationship between the opposing litter pans. Tracks on the screen member guide and receive the first pan on a first face side of the screen member and guide and receive the second pan on a second face side of the screen member, holding the two pans securely together. The screen member provides on one longitudinal end a handle and two catches, one catch for engaging each said litter pan when each said litter pan is fully received by said tracks and properly oriented with respect to the screen member and the respective other litter pan. The catches are located approximate to the handle for convenient one hand engagement and disengagement, and are self engaging and manually disengaging devices. The screening device including the pans and the screen member, can be composed of a molded plastic. Once both pans are engaged to the screen member, the entire device can be transported by a person using the handle for convenience.

    摘要翻译: 一种改进的动物废物收集和筛选装置,其具有相对取向的两个垃圾桶,第一垃圾盘的开放面以面对布置的方式布置,其中第二垃圾盘的开放面具有在相对的垃圾桶之间的插入关系中的筛网构件。 在屏幕构件引导件上的轨迹,并且在屏幕构件的第一面侧上接收第一平底锅,并在屏幕构件的第二面侧引导并接收第二平底锅,将两个平底锅牢固地保持在一起。 屏幕构件在一个纵向端部上提供手柄和两个卡子,当每个所述垃圾盘被所述轨道完全容纳并且相对于屏幕构件和相应的其它垃圾盘正确定向时,一个抓钩用于接合每个所述垃圾盘。 卡扣位于手柄附近,方便一手接合和脱开,并且是自动接合和手动脱开装置。 包括平底锅和筛网构件的筛分装置可以由模制塑料组成。 一旦两个盘都被接合到屏幕部件上,为了方便,整个装置可以由使用手柄的人运送。

    Sacrificial agents for enhanced oil recovery
    47.
    发明授权
    Sacrificial agents for enhanced oil recovery 失效
    用于提高采收率的牺牲品

    公开(公告)号:US4713185A

    公开(公告)日:1987-12-15

    申请号:US715368

    申请日:1985-03-25

    IPC分类号: C09K8/88 E21B43/22

    CPC分类号: C09K8/885 Y10S507/936

    摘要: Sacrificial agents employed in methods of obtaining oil from rock formations by surfactant flooding comprising oxidized and/or chlorinated lignin and lignin-like derivatives obtained form inexpensive and readily available sources. In one form of the invention such derivatives present in E-stage wood pulp bleach plant effluent are concentrated by the use of macroporous resins, reverse osmosis or membrane dialysis. In another form of the invention, new sources of the derivatives are provided from forest industry by-products. In a further form of the invention, the derivatives are complexed with iron which significantly improves the sacrificial agent activity of the derivatives. Such sacrificial agents reduce the amount of expensive surfactant required in the oil recovery method.

    摘要翻译: 用于通过表面活性剂淹没从岩层获得油的方法中使用的牺牲剂,其包含由廉价和容易获得的来源获得的氧化和/或氯化木质素和木质素样衍生物。 在本发明的一种形式中,通过使用大孔树脂,反渗透或膜透析来浓缩存在于E级木浆漂白工厂流出物中的衍生物。 在本发明的另一种形式中,衍生物的新来源由森林工业副产品提供。 在本发明的另一种形式中,衍生物与铁络合,这显着提高了衍生物的牺牲剂活性。 这种牺牲剂减少油回收方法中所需的昂贵的表面活性剂的量。

    Broom having interlocking components
    48.
    发明授权
    Broom having interlocking components 失效
    扫帚具有互锁组件

    公开(公告)号:US4642837A

    公开(公告)日:1987-02-17

    申请号:US767559

    申请日:1985-08-20

    摘要: The broom assembly of the present invention comprises of a broom shroud having an opening in its top, said broom shroud including resilient means depending inwardly toward said opening; bristle retaining means including ferrule means integral therewith and extending upwardly therefrom, said ferrule means adapted to receive said resilient means; a broom handle removably received in said ferrule, and fastening means engaging the ferrule means, whereby said resilient means is flexed inwardly against the handle upon tightening said fastening means.

    摘要翻译: 本发明的扫帚组件包括在其顶部具有开口的扫帚罩,所述扫帚罩包括朝向所述开口向内倾斜的弹性装置; 刷毛保持装置,包括与其成一体并从其向上延伸的套圈装置,所述套圈装置适于容纳所述弹性装置; 可移除地容纳在所述套圈中的扫把,以及紧固装置接合所述套圈装置,由此所述弹性装置在紧固所述紧固装置时向内弯曲抵靠手柄。

    Electric cable
    49.
    发明授权
    Electric cable 失效
    电缆

    公开(公告)号:US4238638A

    公开(公告)日:1980-12-09

    申请号:US967574

    申请日:1978-12-08

    IPC分类号: H01B7/285 H01B7/28

    CPC分类号: H01B7/285

    摘要: An electric cable having a core made of insulated conductors disposed within a polymeric sheath. Voids within the core, between the conductors, are at least partially filled in the unused cable with a mixture comprising untreated calcium carbonate and a water-attracting polymer able to form a gel on contact with water without swelling. The cables are made waterproof by the presence of the mixture, which is cheaper than prior mixtures but as effective.

    摘要翻译: 一种电缆,其具有设置在聚合物护套内的由绝缘导体制成的芯。 导体之间的芯内部的空隙至少部分地填充在未使用的电缆中,其中包含未处理的碳酸钙和吸水性聚合物的混合物,其能够在与水接触时形成凝胶而没有溶胀。 电缆通过混合物的存在使其防水,这比以前的混合物便宜但是有效。

    RANDOM, SEQUENTIAL, OR SIMULTANEOUS MULTI-BEAM CIRCULAR ANTENNA ARRAY AND BEAM FORMING NETWORKS WITH UP TO 360° COVERAGE

    公开(公告)号:US20240137065A1

    公开(公告)日:2024-04-25

    申请号:US18386626

    申请日:2023-11-02

    申请人: John Howard

    发明人: John Howard

    IPC分类号: H04B1/58 H04B1/04 H04B7/0426

    摘要: A beam forming network system includes a first beam forming network having first and second ports, in which each of the first ports is operatively coupled to an antenna element; and a second beam forming network including third and fourth ports, in which each of the third ports is operatively coupled to one of the second ports using at least one of a phase shifter, attenuator, power divider, and/or hybrid coupler. A method of beam forming includes coupling each of the first ports associated with a first beam forming network operatively to one antenna element, and coupling each of the third ports associated with a second beam forming network operatively to one of the second ports associated with the first beam forming network using at least one of a phase shifter, attenuator, power divider, and/or hybrid coupler.