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    • 3. 发明申请
    • DUAL PISTON PUMP ASSEMBLY WITH ANTI-ROTATION GUIDE RAILS
    • 双活塞泵与反转导轨
    • US20100111721A1
    • 2010-05-06
    • US12566610
    • 2009-09-24
    • Carl M. SERVINMark GREENJeff KARG
    • Carl M. SERVINMark GREENJeff KARG
    • F04B9/04F04B17/00
    • F04B23/06F04B9/04
    • A dual piston-pump apparatus is provided having a pump chassis that includes a pair of spaced-apart, elongated piston bores, and a lead screw shaft. This shaft includes a motor driven end, and another portion thereof rotatably mounted to the chassis for rotation about a screw rotational axis. A piston drive member threadably cooperates with the lead screw shaft for selective reciprocating movement longitudinally along the screw rotational axis thereof between a first position and a second position. The drive member includes a pair of spaced-apart piston shafts, each piston shaft of which includes a respective piston head slideably received in a respective piston bore of the chassis. As the drive member is driven along the screw shaft between the first position and the second position, each piston head is simultaneously reciprocated between a dispensing condition and an aspiration condition. An anti-rotation device cooperates between the pump chassis and the drive member to substantially prevent rotational displacement of the drive member relative to the pump chassis and about the screw rotational axis during rotational motion of the screw shaft.
    • 提供了一种双活塞泵装置,其具有包括一对间隔开的细长活塞孔和导螺杆轴的泵底盘。 该轴包括马达驱动端,并且其另一部分可旋转地安装到底盘上以围绕螺旋旋转轴线旋转。 活塞驱动构件与丝杠轴螺纹地配合,用于沿第一位置和第二位置之间的螺杆旋转轴线沿纵向方向往复运动。 驱动构件包括一对间隔开的活塞轴,每个活塞轴包括可滑动地容纳在底盘的相应活塞孔中的相应的活塞头。 当驱动构件沿着螺杆轴在第一位置和第二位置之间被驱动时,每个活塞头在分配条件和抽吸条件之间同时往复运动。 防旋转装置在泵底盘和驱动构件之间配合,从而基本上防止驱动构件相对于泵底盘的旋转位移以及在螺杆轴的旋转运动期间围绕螺杆旋转轴线旋转。
    • 9. 发明申请
    • M-BLADE SNAP ACTION SWITCH WITH OPTIMAL SWITCH CONTACT FORCES
    • M-BLADE SNAP行动开关与最佳开关接触力
    • US20130048483A1
    • 2013-02-28
    • US13219033
    • 2011-08-26
    • Brian SpeldrichSteven SpeeceMark Green
    • Brian SpeldrichSteven SpeeceMark Green
    • H01H5/00
    • H01H5/18H01H1/26H01H13/365H01H2001/265
    • A snap-action switch includes an M-blade snap spring, an actuation arm, a first bridge, and a second bridge. The M-blade snap spring includes a closed end, a double-loop end, a first outer leg, a second outer leg, a first inner leg, a second inner leg, and a cross member. The actuation arm is coupled to the first and second inner legs, and distorts the M-blade snap to exhibit snap-action movement between a first switch position and a second switch position. When the M-blade snap spring is in the first switch position, the double-loop end engages the first bridge and does not engage the second bridge, and when the M-blade snap spring is in the second switch position, the double-loop end engages the second bridge and does not engage the first bridge.
    • 快动开关包括M形刀片卡扣弹簧,致动臂,第一桥和第二桥。 M形刀片卡扣弹簧包括封闭端,双回路端,第一外腿,第二外腿,第一内腿,第二内腿和横梁。 所述致动臂联接到所述第一和第二内部支腿,并且扭曲所述M形刀片卡扣以在第一开关位置和第二开关位置之间呈现卡合动作。 当M型刀片卡扣弹簧处于第一开关位置时,双回路端部接合第一桥接件并且不接合第二桥接器,并且当M形刀片卡扣弹簧处于第二开关位置时,双回路 端部接合第二座桥,不接合第一座桥。