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    • 1. 发明申请
    • SEAL-RETAINING VALVE FOR FLUID METERING DEVICE
    • 用于流体计量装置的密封保持阀
    • WO2009154801A2
    • 2009-12-23
    • PCT/US2009/003706
    • 2009-06-22
    • GRACO MINNESOTA INC.BREESER, David, L.ROGERS, Daniel, J.HOLMAN, John, C.
    • BREESER, David, L.ROGERS, Daniel, J.HOLMAN, John, C.
    • B67D5/08F16K21/00G01F15/00
    • B67D7/425B67D7/20Y10T137/3149Y10T137/86759
    • A valve 26 comprises a valve cartridge 40, a valve stem 42 and a valve seal 66. The valve cartridge 40 comprises a generally cylindrical cartridge body, a bore 67 extending longitudinally through the cartridge body, and an outlet passage 69 and intermittent inlet passages 76 extending through a side wall of the cartridge body to intersect the bore 67. The valve stem 42 comprises an elongate body configured to slide within the bore 67, and a neck 82 and a seal channel 114 circumscribing the elongate body. The valve seal 66 is seated within the seal channel 114. The valve stem 42 slides within the bore 67 to move the seal channel 114 past the inlet passages 76. Portions 74 of the cartridge body between the inlet passages 76 retain the valve seal 66 within the valve channel 114 until the inlet passages 76 are open to the neck 82. In one embodiment, the inlet passages 76 form a crenelated edge 72. In another embodiment, the inlet passages form a ported end 120.
    • 阀26包括阀芯40,阀杆42和阀密封件66.阀芯40包括大致圆柱形的盒体,纵向延伸通过盒主体的孔67以及出口通道69和间歇入口通道76 延伸通过盒主体的侧壁以与孔67相交。阀杆42包括构造成在孔67内滑动的细长主体以及限定细长主体的颈部82和密封通道114。 阀密封件66位于密封通道114内。阀杆42在孔67内滑动以使密封通道114移动通过入口通道76.入口通道76之间的主体的部分74将阀密封件66保持在 直到入口通道76通向颈部82的阀通道114.在一个实施例中,入口通道76形成楔形边缘72.在另一个实施例中,入口通道形成端口端部120。
    • 2. 发明申请
    • INVOLUTE GEAR TEETH FOR FLUID METERING DEVICE
    • 用于流体计量装置的相关齿轮传动装置
    • WO2009154803A2
    • 2009-12-23
    • PCT/US2009/003710
    • 2009-06-22
    • GRACO MINNESOTA INC.BREESER, David, L.BAUCK, Mark, L.HOLMAN, John, C.
    • BREESER, David, L.BAUCK, Mark, L.HOLMAN, John, C.
    • G01F15/00
    • G01F3/10Y10T74/19949
    • An oval gear set 46 for use in a flow meter 28 comprises first and second gears (46A, 46B) that are identical to each other and that are configured to engage at a fixed center-to-center distance CD such that the first and second gears (46A, 46B) mesh at all angular positions. Each gear of the oval gear set 46 comprises a hub and a plurality of gear teeth 95. The hub comprises an oval body (99A, 99B) having a major axis and a minor axis extending through a center (100A, 100B) of the hub, and a root profile RP wall circumscribing the major and minor axes. The plurality of gear teeth 95 extend from the root profile RP wall. Each of the gear teeth 95 has a pair of contact surfaces with circular involute curve profiles (IC1, IC2).
    • 用于流量计28的椭圆齿轮组46包括彼此相同并且构造成接合在固定的中心到中心的距离CD的第一和第二齿轮(46A,46B),使得第一和第二齿轮 齿轮(46A,46B)在所有角度位置啮合。 椭圆齿轮组46的每个齿轮包括轮毂和多个齿轮齿95.轮毂包括椭圆体(99A,99B),其具有长轴和延伸穿过毂的中心(100A,100B)的短轴 ,以及限定主轴和短轴的根轮廓RP壁。 多个齿轮齿95从根轮廓RP壁延伸。 每个齿轮齿95具有一对具有圆形渐开线曲线轮廓(IC1,IC2)的接触表面。
    • 3. 发明申请
    • TRIGGER RELEASE MECHANISM FOR FLUID METERING DEVICE
    • 用于流量计量装置的触发释放机构
    • WO2009154802A2
    • 2009-12-23
    • PCT/US2009/003707
    • 2009-06-22
    • GRACO MINNESOTA INC.BREESER, David, L.BAUCK, Mark, L.HOLMAN, John, C.
    • BREESER, David, L.BAUCK, Mark, L.HOLMAN, John, C.
    • B67D5/08G01F15/00
    • B67D7/426B67D7/04B67D7/08B67D7/145B67D7/30B67D7/303B67D7/425
    • A hand-held flow metering device 10 for dispensing a pressurized fluid comprises a valve 26, a flow meter 28, a trigger lever 20, a trigger release mechanism 30 and meter electronics 84. The valve 26 is connected to the pressurized fluid to regulate flow of the pressurized fluid through the device 10. The flow meter 28 is disposed within the flow of pressurized fluid to measure volumetric flow of the pressurized fluid. The trigger lever 20 is configured to be manually displaced to mechanically open the valve 26. The trigger release mechanism 30 is connected to the trigger lever 26 and is selectively actuated to mechanically prevent the trigger lever 20 from opening the valve 26 when the trigger lever 20 is displaced. The meter electronics 84 is connected to the flow meter 28 and the trigger release mechanism 30 to actuate the trigger release mechanism 30 based on output of the flow meter 28.
    • 用于分配加压流体的手持式流量计量装置10包括阀26,流量计28,触发器杆20,触发器释放机构30和仪表电子装置84.阀26连接到加压流体以调节流量 加压流体通过装置10.流量计28设置在加压流体流中以测量加压流体的体积流量。 触发器杆20构造成手动移位以机械地打开阀26.触发器释放机构30连接到触发器杆26,并且当触发杆20被选择性地致动以机械地防止触发杆20打开阀26 被流离失所 仪表电子设备84连接到流量计28和触发器释放机构30,以基于流量计28的输出致动触发器释放机构30。