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    • 3. 发明申请
    • FIXED CUTTER BIT PARTIAL BLADE CONNECTION AT BIT CENTER
    • 固定切割机位于中心的部分刀片连接
    • US20080289881A1
    • 2008-11-27
    • US12126666
    • 2008-05-23
    • Yuelin ShenYouhe ZhangPaul Higgins
    • Yuelin ShenYouhe ZhangPaul Higgins
    • E21B10/573
    • E21B10/42
    • A fixed cutter drill bit including a bit body having a plurality of primary blades extending radially from a bit center area, wherein the bit center area includes a partial connection between at least two of the plurality of primary blades. The fixed cutter drill bit further including at least one cutter disposed on at least one of the blades. Additionally, a method of designing a fixed cutter drill bit includes modeling the fixed cutter drill bit, the fixed cutter drill bit including a plurality of primary blades extending radially from a bit center area, wherein the plurality of primary blades includes a plurality of cutters. The method further including determining a center of an innermost cutter on each primary blade, creating a partial connection between the primary blades, and outputting the model of the fixed cutter drill bit.
    • 一种固定的切割钻头,包括具有从钻头中心区域径向延伸的多个主刀片的钻头体,其中钻头中心区域包括多个主刀片中的至少两个之间的部分连接。 固定式切割钻头还包括设置在至少一个叶片上的至少一个切割器。 另外,设计固定切割钻头的方法包括对固定切割钻头进行建模,固定切割钻头包括从钻头中心区域径向延伸的多个主刀片,其中多个主刀片包括多个刀具。 该方法还包括确定每个主叶片上的最内切割器的中心,在主叶片之间产生部分连接,并输出固定切割钻头的模型。
    • 4. 发明申请
    • Cable Reel Holder
    • 电缆卷筒支架
    • US20080265085A1
    • 2008-10-30
    • US11814264
    • 2006-01-17
    • Gary PembertonPaul Higgins
    • Gary PembertonPaul Higgins
    • B65H49/32
    • B65H49/26B65H2402/412
    • A cable reel holder (1) for use with a cable reel (13) having a hollow cable spool (14). The holder comprises a head unit and a base unit (2) which are releasably connectable via a spindle (5, 10) upon which, in use, the cable spool (14) is mounted. Tho spindle is comprised of a first member defined by the base unit and a second member defined by the head unit, with the first member being releasably connectable to the second member. The first and second members are releasably connectable by a screw connection (6, 11). The spindle is preferably upright during use of the holder. The screw connection between the first and second members is preferably arranged such that, as cable is drawn from a cable reel mounted on the spindle, the screw connection is caused to tighten.
    • 一种与具有中空电缆线轴(14)的电缆卷轴(13)一起使用的电缆卷轴架(1)。 保持器包括头单元和基座单元(2),其经由主轴(5,10)可释放地连接,在使用中安装有电缆卷轴(14)。 梭心轴包括由基座单元限定的第一构件和由头单元限定的第二构件,第一构件可释放地连接到第二构件。 第一和第二构件通过螺纹连接(6,11)可释放地连接。 在保持器的使用期间,心轴优选是直立的。 第一和第二构件之间的螺纹连接优选地被布置成使得当电缆从安装在主轴上的电缆卷轴拉出时,螺钉连接被拉紧。