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    • 14. 发明授权
    • Rotary drill bit with improved shirttail and seal protection
    • 旋转钻头,具有改进的衬衫和密封保护
    • US5570750A
    • 1996-11-05
    • US425917
    • 1995-04-20
    • Mark E. Williams
    • Mark E. Williams
    • E21B10/22E21B10/25E21B10/00
    • E21B10/25E21B10/22
    • A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of angularly-spaced support arms formed to extend from the bit body. Each support arm has an inside surface with a spindle connected thereto and an outer shirttail surface. A number of cutter cones equal to the number of support arms are rotatably mounted on respective spindles. Each of the cutter cones includes an internal cylindrical cavity for receiving the respective spindle. A gap with a generally cylindrical portion is formed between the spindle and the cavity with a seal element disposed within the gap. The gap has an opening contiguous with the bottom edge of the shirttail surface and extending outwardly from the spindle. A shirttail ring is disposed on the exterior of each spindle between the cutter cone and the inside surface of the respective support arm with a portion of the shirttail ring extending from the respective shirttail surface. A seal ring may be disposed on the exterior of the spindle adjacent to the shirttail ring. The seal ring cooperates with the sealing element to form a fluid barrier between the spindle and the cavity.
    • 一种用于形成钻孔的旋转锥形钻头,其具有适于连接到钻柱的上端部的钻头体。 多个角度间隔的支撑臂形成为从钻头体延伸。 每个支撑臂具有内表面,其中连接有主轴和外部衬衫表面。 与支撑臂的数量相等的多个切割锥可旋转地安装在各自的主轴上。 每个切割锥包括用于接收相应主轴的内圆柱形腔。 在主轴和空腔之间形成具有大致圆柱形部分的间隙,其中密封元件设置在间隙内。 间隙具有与底纹表面的底部边缘连续的开口并且从心轴向外延伸。 在每个主轴的外部,在切割锥体和相应的支撑臂的内表面之间设置有一个衬衫戒指,一部分衬衫戒指环从相应的衬衫表面延伸。 密封环可以布置在与衬衫尾环相邻的心轴的外部上。 密封环与密封元件配合,以在主轴和空腔之间形成流体屏障。
    • 15. 发明授权
    • Methods of producing maize plants having a high oil phenotype by detecting a marker locus genetically linked with a QTL6 region
    • 通过检测与QTL6区域遗传连锁的标记位点来生产具有高油表型的玉米植物的方法
    • US08319010B2
    • 2012-11-27
    • US13157068
    • 2011-06-09
    • William B. AllenBo ShenMitchell C. TarczynskiMark E. WilliamsPeizhong ZhengGan-Yuan Zhong
    • William B. AllenBo ShenMitchell C. TarczynskiMark E. WilliamsPeizhong ZhengGan-Yuan Zhong
    • A01H1/00A01H5/00C12Q1/68
    • A01H1/04C12N9/1029C12N15/8247C12Q1/6895C12Q2600/13C12Q2600/156C12Q2600/172Y10T436/104165
    • Compositions related to the quantitative trait locus 6 (QTL6) in maize and methods for their use are provided. The compositions are novel molecular marker loci that are genetically linked with QTL6 and which are associated with increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio of a plant or plant part thereof. These novel markers are characterized by the presence of at least one polymorphism relative to the corresponding marker locus from the QTL6 region of non-high-oil, non-high-oleic acid maize plants. In some embodiments, the novel marker loci comprise coding sequence for a maize DGAT1-2 polypeptide or biologically active variant thereof. The marker loci of the invention, and suitable fragments thereof, are useful in methods of the invention for manipulating oil and/or oleic acid content and/or oleic acid/lineolic acid ratio of a plant or plant part thereof, for marker-assisted selection of a plant, for example, a maize plant, or plant part thereof, having an increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio, and for marker-assisted breeding of the high oil and/or high oleic acid trait.
    • 提供了与玉米数量性状基因座6(QTL6)相关的成分及其使用方法。 所述组合物是与QTL6遗传连锁的新型分子标记基因座,其与植物或植物部分的油含量增加和/或油酸含量增加和/或油酸/亚油酸含量增加相关。 这些新型标记物的特征在于相对于非高油非高油酸玉米植物的QTL6区域的相应标记基因座存在至少一个多态性。 在一些实施方案中,新的标记基因座包含玉米DGAT1-2多肽或其生物活性变体的编码序列。 本发明的标记基因座及其合适的片段可用于本发明的操作用于标记辅助选择的植物或植物部分的油和/或油酸含量和/或油酸/线性酸比例的方法中 具有增加的油含量和/或油酸含量增加和/或油酸/亚油酸比例增加的植物,例如玉米植物或其植物部分,以及高油的标记辅助育种 和/或高油酸性状。
    • 18. 发明申请
    • COMPOSITIONS RELATED TO THE QUANTITATIVE TRAIT LOCUS 6 (QTL6) IN MAIZE AND METHODS OF USE
    • 与量化条件6(QTL6)相关的组合物及其使用方法
    • US20110041207A1
    • 2011-02-17
    • US12875574
    • 2010-09-03
    • William B. AllenBo ShenMitchell C. TarczynskiMark E. WilliamsPeizhong ZhengGan-Yuan Zhong
    • William B. AllenBo ShenMitchell C. TarczynskiMark E. WilliamsPeizhong ZhengGan-Yuan Zhong
    • A01H1/02C12Q1/68A01H5/00A01H1/06
    • C12N15/8247C12N9/1029C12Q1/6895C12Q2600/13C12Q2600/156C12Q2600/172
    • Compositions related to the quantitative trait locus 6 (QTL6) in maize and methods for their use are provided. The compositions are novel molecular marker loci that are genetically linked with QTL6 and which are associated with increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio of a plant or plant part thereof. These novel markers are characterized by the presence of at least one polymorphism relative to the corresponding marker locus from the QTL6 region of non-high-oil, non-high-oleic acid maize plants. In some embodiments, the novel marker loci comprise coding sequence for a maize DGAT1-2 polypeptide or biologically active variant thereof. The marker loci of the invention, and suitable fragments thereof, are useful in methods of the invention for manipulating oil and/or oleic acid content and/or oleic acid/linoleic acid ratio of a plant or plant part thereof, for marker-assisted selection of a plant, for example, a maize plant, or plant part thereof, having an increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio, and for marker-assisted breeding of the high oil and/or high oleic acid trait.
    • 提供了与玉米数量性状基因座6(QTL6)相关的成分及其使用方法。 所述组合物是与QTL6遗传连锁的新型分子标记基因座,其与植物或植物部分的油含量增加和/或油酸含量增加和/或油酸/亚油酸含量增加相关。 这些新型标记物的特征在于相对于非高油非高油酸玉米植物的QTL6区域的相应标记基因座存在至少一个多态性。 在一些实施方案中,新的标记基因座包含玉米DGAT1-2多肽或其生物活性变体的编码序列。 本发明的标记基因座及其合适的片段可用于本发明的用于操纵植物或植物部分的油和/或油酸含量和/或油酸/亚油酸比例的方法,用于标记辅助选择 具有增加的油含量和/或油酸含量增加和/或油酸/亚油酸比例增加的植物,例如玉米植物或其植物部分,以及高油的标记辅助育种 和/或高油酸性状。