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    • 13. 发明授权
    • Torque control means for hydraulic motor
    • 液压马达的扭矩控制装置
    • US06192782B1
    • 2001-02-27
    • US09224160
    • 1998-12-31
    • John W. Rogers
    • John W. Rogers
    • F01C2112
    • F15B11/0423F15B11/028F15B2211/20538F15B2211/27F15B2211/30525F15B2211/324F15B2211/50536F15B2211/5151F15B2211/526F15B2211/528F15B2211/55F15B2211/57F15B2211/615F15B2211/6309F15B2211/7051F15B2211/7058F15B2211/71
    • A fluid pressure control system for limiting the torque output of a positive displacement hydraulic motor (21) for rotating a screw anchor (11, 11′) into the ground. A normally closed solenoid operated control valve (76) is mounted in a bypass line (86) between the high pressure supply line (30) and the low pressure exhaust line (36). A plurality of electro-hydraulic switches (72) are arranged for setting at different predetermined fluid pressures and are in fluid communication with a differential pressure sensing chamber (63). Upon turning on of a selected switch (72) having the desired pressure level, the reaching of the desired pressure level activates the selected switch (72) for actuation of solenoid operated control valve (76) to move control valve (76) to an open position as shown in FIG. 3 to bypass fluid from high pressure line (30) to exhaust line (36) to limit the torque output of the motor (21).
    • 一种用于限制用于将螺钉(11,11')旋转到地面中的正排量液压马达(21)的扭矩输出的流体压力控制系统。 常闭电磁操作控制阀(76)安装在高压供应管线(30)和低压排气管路(36)之间的旁通管路(86)中。 多个电动液压开关(72)被布置成用于设定在不同的预定流体压力并且与差压检测室(63)流体连通。 在打开具有所需压力水平的所选择的开关(72)时,达到期望的压力水平启动所选择的开关(72),用于致动电磁操作的控制阀(76)以将控制阀(76)移动到打开 位置。 以将流体从高压管线(30)旁通到排气管线(36)以限制电动机(21)的扭矩输出。
    • 17. 发明授权
    • Method and apparatus for handling a coil
    • 用于处理线圈的方法和装置
    • US3999665A
    • 1976-12-28
    • US555681
    • 1975-03-05
    • John W. Rogers
    • John W. Rogers
    • B21C47/00B21C47/24B21C47/32B65H19/30B65H19/02
    • B21C47/24B21C47/006B21C47/323B65H19/30B65H2301/4148B65H2301/41485B65H2301/4174B65H2301/41745B65H2701/1846Y10S414/124
    • The handling of metal coils, such as coils of sheet steel, aluminum or other materials is facilitated through the use of a transfer bar which is inserted in the coils before they are removed from a rewind mandrel. In a typical operation the transfer bar is inserted between the inside diameter of the coil and the outside diameter of the rewind mandrel adjacent the coil tail after the mandrel has been collapsed. The transfer bar is then raised into engagement with the coils, contacting them adjacent their tails, and the coils are thereafter carried by the transfer bar as they are moved from the rewind mandrel to a turnstile horn and from the turnstile horn to a downlayer. As a result, removal of the coil tails from the mandrel gripper slot is facilitated, eliminating telescoping of the coils upon removal from the mandrel, and damage to the inside diameters of the coils is obviated because there is no sliding of the coils along the mandrel or turnstile horn after they are carried by the transfer bar. Additionally, damage that often occurs to the coil edges is eliminated because separation between the coils is maintained as long as they are carried by the transfer bar and because separation is maintained, there is no interleaving of the edges of adjacent coils, thereby avoiding the problem of prying adjacent coils apart once they have become interleaved.
    • 金属线圈的处理,例如钢板,铝或其他材料的卷材,通过使用转移杆来促进,该转移杆在将它们从重绕心轴移除之前插入到线圈中。 在典型的操作中,在心轴已经折叠之后,传送杆插入在线圈的内径和与线圈尾部相邻的倒带心轴的外径之间。 然后将转移杆升高成与线圈接合,使它们与它们的尾部相接触,然后线圈在它们从倒带心轴移动到十字转门和从十字转门角到下层时由转移杆承载。 结果,容易从芯棒夹持器槽中去除线圈尾部,消除了从心轴移除线圈时伸缩的线圈,并且消除了线圈内径的损坏,因为线圈不沿着心轴滑动 或转盘上的转角杆。 此外,线圈边缘经常发生的损坏被消除,因为线圈之间的间隔只要它们被转移杆承载并且由于保持分离而保持相邻线圈的边缘没有交错,从而避免了问题 一旦它们已经交错就将相邻的线圈分开。
    • 19. 发明授权
    • Differential pressure gauge assembly
    • 差压表组件
    • US6116093A
    • 2000-09-12
    • US987320
    • 1997-12-09
    • John W. Rogers
    • John W. Rogers
    • G01L7/04G01L9/00G01L13/02
    • G01L7/043G01L9/0026
    • A differential fluid pressure assembly (10) has an inner differential fluid pressure gauge (14) enclosed by an outer fluid-tight housing (12). A low pressure fluid inlet (34) is in fluid communication with the space (32) defined by the outer housing (12). A high pressure fluid inlet (38) extends through the outer housing (12) and is in fluid communication with a bourdon tube (44) within the differential pressure gauge (14). Low pressure fluid inlet (34) is connected to a low pressure line (36) extending to a low pressure fluid source. High pressure fluid inlet (38) is connected to a high pressure fluid line (40) extending to a high pressure fluid source for measurement of the differential fluid pressure between a low pressure source and a high pressure source.
    • 差动流体压力组件(10)具有由外部流体密封壳体(12)包围的内部差分流体压力计(14)。 低压流体入口(34)与由外壳(12)限定的空间(32)流体连通。 高压流体入口(38)延伸穿过外壳体(12)并且与差压计(14)内的布尔登管(44)流体连通。 低压流体入口(34)连接到延伸到低压流体源的低压管线(36)。 高压流体入口(38)连接到延伸到高压流体源的高压流体管线(40),用于测量低压源和高压源之间的差动流体压力。