公开(公告)号：US06699311B2

公开(公告)日：2004-03-02

申请号：US10029183

申请日：2001-12-28

申请人： David P. Smith ,  Rudy V. Mills ,  Robert A. Aarestad ,  Chad T. Brickner

发明人： David P. Smith ,  Rudy V. Mills ,  Robert A. Aarestad ,  Chad T. Brickner

IPC分类号： F15B1304

CPC分类号： E02F9/2217 ,  E02F3/844 ,  E02F9/2203 ,  E02F9/226 ,  F15B11/024 ,  F15B2211/20576 ,  F15B2211/30505 ,  F15B2211/30525 ,  F15B2211/3058 ,  F15B2211/3111 ,  F15B2211/3127 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/353 ,  F15B2211/625 ,  F15B2211/6355 ,  F15B2211/7107 ,  F15B2211/7128 ,  F15B2211/8609

摘要： A fluid circuit for raising and lowering an implement including a quick drop valve member movable between at least a first position and a second position, the first position corresponding to a non-quick drop hydraulic fluid flow path of the fluid circuit and the second position corresponding to a quick drop hydraulic fluid flow path of the fluid circuit, the quick drop valve member being movable between at least the first and second positions based on pressures in the fluid circuit produced by hydraulic fluid. The fluid circuit further including a control system configured to selectively apply a biasing force against the quick drop valve member biasing the quick drop valve in the first position, the control system providing the biasing force independent of pressures in the fluid circuit produced by the hydraulic fluid.

摘要翻译： 一种用于升高和降低工具的流体回路，其包括可在至少第一位置和第二位置之间移动的快速下降阀构件，所述第一位置对应于所述流体回路的非快速下降液压流体流动路径和所述第二位置对应 到液体回路的快速下降液压流体流动路径，快速下降阀构件可基于由液压流体产生的流体回路中的压力在至少第一和第二位置之间移动。 流体回路还包括一个控制系统，该控制系统构造成选择性地向快速下降阀构件施加偏置力，该快速下降阀构件将快速下降阀偏置在第一位置，该控制系统提供与液压流体产生的流体回路中的压力无关的偏压力 。

公开(公告)号：US06631653B2

公开(公告)日：2003-10-14

申请号：US09731684

申请日：2000-12-06

申请人： Chad T. Brickner ,  John R. Connolly ,  Paul Gilbert ,  Thomas J. Hajek, Jr. ,  Rudy V. Mills ,  David P. Smith

发明人： Chad T. Brickner ,  John R. Connolly ,  Paul Gilbert ,  Thomas J. Hajek, Jr. ,  Rudy V. Mills ,  David P. Smith

IPC分类号： F16H5900

CPC分类号： G05G9/04 ,  Y10T74/20159 ,  Y10T74/20201 ,  Y10T74/20396 ,  Y10T403/32041

摘要： A single lever control assembly that limits motion due to the inherent design of the assembly. In other words, no additional components are required to limit the motion of the single lever control assembly. The assembly includes two U-shaped members each having a base and parallel legs extending from the base, a lever connected to one of the U-shaped members and a pivot block interconnecting the parallel legs for allowing the U-shaped members to rotate relative to one another. The assembly has at least one of the parallel legs having a projection that engages one of the parallel legs of the other U-shaped member. In general, the single lever control assembly is a type of modified universal joint whose movement is limited by a projection.

摘要翻译： 单个杠杆控制组件，由于组件的固有设计而限制运动。 换句话说，不需要额外的部件来限制单个杆控制组件的运动。 组件包括两个U形构件，每个U形构件具有底座和从底座延伸的平行腿，连接到U形构件中的一个的杆和连接平行腿的枢轴块，以允许U形构件相对于 另一个。 组件具有平行腿中的至少一个具有接合另一个U形构件的平行腿中的一个的突起。 通常，单杠杆控制组件是一种改进的万向节，其运动受到投影的限制

公开(公告)号：US07293579B2

公开(公告)日：2007-11-13

申请号：US10887491

申请日：2004-07-08

申请人： James A. Aardema ,  Rudy V. Mills ,  David P. Smith

发明人： James A. Aardema ,  Rudy V. Mills ,  David P. Smith

IPC分类号： F16K21/02 ,  F16K15/02

CPC分类号： F16K17/0466 ,  F16K15/026 ,  Y10T137/7846 ,  Y10T137/7847 ,  Y10T137/7938

摘要： A poppet valve arrangement is provided and has a poppet slideably disposed therein. The poppet has an odd number of integral guide legs formed thereon about the periphery of the poppet. The odd number of integral guide legs are evenly spaced from one another and are of a size sufficient to permit fluid to freely flow thereby when unseated. The integral guide legs also function to permit the poppet to freely slide, without binding, within a bore of the poppet valve arrangement. The poppet having integral guide legs is compact, versatile, cost effective to produce and has good strength.

摘要翻译： 提供提升阀装置并且具有可滑动地设置在其中的提升阀。 提升阀具有在提升阀的周边上形成的奇数数量的整体式导向杆。 奇数数量的一体式引导支腿彼此均匀间隔开，并且具有足够的尺寸，以允许流体自由流动，从而当其脱离时。 整体引导腿还用于允许提升阀在提升阀装置的孔内自由地滑动而不会结合。 具有一体式引导腿的提升阀紧凑，通用，生产成本高，强度高。

公开(公告)号：US6098481A

公开(公告)日：2000-08-08

申请号：US212026

申请日：1998-12-15

申请人： Rudy V. Mills ,  David P. Smith

发明人： Rudy V. Mills ,  David P. Smith

IPC分类号： B60K20/02 ,  F16H63/38 ,  G05G5/06 ,  G05G9/047 ,  G05G9/00

CPC分类号： G05G9/047 ,  Y10T74/20201 ,  Y10T74/20636 ,  Y10T74/2066

摘要： A high force detent mechanism to selectively hold a control input lever in any selected position between neutral and its maximum travel in either direction. The high force detent mechanism includes a coil assembly connected to a control input lever and disposed in close proximity to a semi-circular member having a serrated edge defined thereon. An armature of the coil assembly has a first portion in driving contact with the serrated edge and a second enlarge portion having a latching surface disposed adjacent one of the first and second end faces of the coil assembly's detent coil. The size of the latching surface is larger than the size of the first portion that is in driving contact with the serrated edge. Consequently, the latching force generated between the latching surface and the one face of the detent coil is multiplied several time to create a detent holding force that is larger than the latching force.

摘要翻译： 高力制动机构，用于选择性地将控制输入杆保持在任何方向上的空档和其最大行程之间的任何选定位置。 高力制动机构包括线圈组件，其连接到控制输入杆并且设置成紧邻其上限定有锯齿形边缘的半圆形构件。 线圈组件的电枢具有与锯齿状边缘驱动接触的第一部分和具有邻近线圈组件的止动线圈的第一和第二端面中的一个设置的锁定表面的第二放大部分。 闩锁表面的尺寸大于与锯齿形边缘驱动接触的第一部分的尺寸。 因此，在闩锁表面和止动线圈的一个面之间产生的锁定力被乘以若干时间以产生大于锁定力的制动夹持力。

公开(公告)号：US20140207390A1

公开(公告)日：2014-07-24

申请号：US14125943

申请日：2012-06-13

申请人： Shunfeng Zheng ,  David P. Smith

发明人： Shunfeng Zheng ,  David P. Smith

IPC分类号： G01N27/90

CPC分类号： G01N27/9073 ,  E21B19/22 ,  E21B47/0006 ,  G01N29/043 ,  G01N2291/0258

摘要： A system and technique for dynamically and historically evaluating useful life of coiled tubing. Methods are detailed wherein a monitor and system are equipped for enhanced evaluating of coiled tubing fatigue life based in part on the orientation of the coiled tubing during use. This may be obtained through the tracking of a seamweld of the coiled tubing. Additionally, reliability of the coiled tubing over various uses may be determined on an ongoing basis as a result of acoustically acquired data during operations. In either case, the monitor may be of a magnetic flux data detection variety.

摘要翻译： 用于动态和历史地评估连续油管的使用寿命的系统和技术。 详细描述了方法，其中装备有监视器和系统以部分地基于在使用期间连续油管的取向来增强对连续油管疲劳寿命的评估。 这可以通过跟踪连续油管的焊缝来获得。 此外，作为在操作期间声学获取的数据的结果，连续油管在各种用途上的可靠性可以在持续的基础上确定。 在任一种情况下，监视器可以是磁通量数据检测品种。

公开(公告)号：US06935114B2

公开(公告)日：2005-08-30

申请号：US10303166

申请日：2002-11-25

申请人： Thomas J. Hajek ,  David P. Smith

发明人： Thomas J. Hajek ,  David P. Smith

IPC分类号： F02N9/04 ,  F02N9/00

CPC分类号： F02N9/04

摘要： A system and method for starting an engine having a crankshaft is provided. Pressurized fluid is stored in an accumulator. A flow of pressurized fluid is released from the accumulator. The flow of pressurized fluid released from the accumulator is directed to a pump that is operatively engaged with the crankshaft of the engine. The flow of pressurized fluid drives the pump to generate a rotation of the crankshaft and thereby start the engine.

摘要翻译： 提供了一种启动具有曲轴的发动机的系统和方法。 加压流体存储在蓄能器中。 加压流体的流动从蓄能器释放。 从蓄能器释放的加压流体的流动被引导到与发动机的曲轴可操作地接合的泵。 加压流体的流动驱动泵以产生曲轴的旋转，从而启动发动机。

公开(公告)号：US06769252B2

公开(公告)日：2004-08-03

申请号：US10016531

申请日：2001-12-10

申请人： David P. Smith

发明人： David P. Smith

IPC分类号： F16D3102

CPC分类号： F15B11/0423 ,  F15B21/047 ,  F15B2211/20538 ,  F15B2211/30505 ,  F15B2211/30575 ,  F15B2211/40515 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/50536 ,  F15B2211/615 ,  F15B2211/62 ,  F15B2211/6355 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/8609

摘要： A fluid control system includes a pressure supply and a valve arrangement having an inlet and an outlet and being in fluid communication with the pressure supply. The valve arrangement includes a relief operator configured to provide fluid communication between the inlet and the outlet of the valve arrangement in response to a predetermined pressure condition at said inlet. The valve arrangement is configured to provide fluid communication between the inlet and the outlet of the valve arrangement in response to an outlet pressure being greater than an inlet pressure.

摘要翻译： 流体控制系统包括压力源和具有入口和出口并与压力源流体连通的阀门装置。 阀装置包括卸载操作器，其构造成响应于所述入口处的预定压力条件，在阀装置的入口和出口之间提供流体连通。 阀装置构造成响应于出口压力大于入口压力而在阀装置的入口和出口之间提供流体连通。

公开(公告)号：US5447029A

公开(公告)日：1995-09-05

申请号：US224944

申请日：1994-04-08

申请人： William C. Swick ,  David P. Smith

发明人： William C. Swick ,  David P. Smith

IPC分类号： F15B11/02 ,  F16H61/42 ,  F16H61/427 ,  F16H61/46 ,  F16H61/47 ,  F16D39/00 ,  F16D31/02

CPC分类号： F16H61/47 ,  F16H61/42 ,  F16H61/427

摘要： Hydrostatic transmissions are useful for propelling a machine to do work and travel relative to the ground. In performing work functions and during travel it is desirable to adjust machine speed to aid in handling the machine. The subject hydrostatic transmission control system includes a infinitely adjustable creeper hand lever which can be moved to any desired position and be maintained in the selected position until moved by the operator. A spring biased inching pedal can be used in combination with the creeper lever to further adjust the machine speed. This arrangement of components provides a control system for the hydrostatic transmission which can be adjusted and maintained at a desired setting.

摘要翻译： 静液压变速器可用于推动机器相对于地面进行工作和行驶。 在执行工作功能和行驶期间，最好调整机器速度以帮助处理机器。 本液静传动控制系统包括一个无限可调的爬行手柄，可以移动到任何所需的位置，并保持在选定的位置，直到操作员移动。 弹簧偏压的踏板可以与爬行杆组合使用，以进一步调整机器速度。 这种组件的布置提供了用于静液压传动的控制系统，其可以被调节并保持在期望的设置。

公开(公告)号：US07444809B2

公开(公告)日：2008-11-04

申请号：US11341630

申请日：2006-01-30

申请人： David P. Smith ,  Daniel T. Mather

发明人： David P. Smith ,  Daniel T. Mather

IPC分类号： F16D31/02

CPC分类号： F15B21/14 ,  E02F9/2217 ,  E02F9/2292 ,  F15B11/006 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/625 ,  F15B2211/7053 ,  F15B2211/88

摘要： A hydraulic system for a work machine is provided. The hydraulic regeneration system has a tank, a primary source, a first actuator, an accumulator, and a first valve mechanism. The tank is configured to hold a supply of fluid. The primary source is configured to pressurize the fluid and has a suction inlet and a discharge outlet. The first actuator is configured to receive pressurized fluid from the discharge outlet of the primary source. The accumulator is in fluid communication with the tank, the suction inlet of the primary source, and the first actuator. The first valve mechanism is disposed between the suction inlet of the primary source and the accumulator, and is movable between a first position at which fluid returning from the first actuator is directed to the suction inlet of the primary source, and a second position at which fluid returning from the first actuator is directed to only the accumulator.

摘要翻译： 提供了一种用于作业机械的液压系统。 液压再生系统具有罐，主源，第一致动器，蓄能器和第一阀机构。 罐被配置成保持流体供应。 主要来源被配置为对流体加压并具有吸入口和排出口。 第一致动器构造成从主源的排出口接收加压流体。 蓄能器与罐，主源的吸入口和第一致动器流体连通。 第一阀机构设置在主源的吸入口和蓄能器之间，并且可在第一位置和第二位置之间移动，在第一位置，第一位置和第二位置之间，第一位置使从第一致动器返回的流体被引导到主源的吸入口， 从第一致动器返回的流体仅被引导到蓄能器。

公开(公告)号：US06394431B1

公开(公告)日：2002-05-28

申请号：US09813539

申请日：2001-03-21

申请人： David P. Smith

发明人： David P. Smith

IPC分类号： G05G506

CPC分类号： G05G5/03 ,  F16H61/24 ,  G05G2009/04766 ,  Y10T74/20201 ,  Y10T74/20612

摘要： The feel bumper includes a plunger disposed for movement by an input device along a predetermined path, and at least one damper element disposed to engage the plunger when in a predetermined initial position along the path corresponding to a desired operating position for exerting a first opposing feedback force against the plunger in opposition to movement thereof along the path in a first direction, the at least one damper element being yieldable to the plunger when moved in the first direction past the predetermined initial position and exerting a second opposing feedback force against the plunger in opposition to the continued movement of the plunger in the first direction through subsequent operating positions.

摘要翻译： 感觉保险杠包括设置成沿着预定路径由输入装置移动的柱塞，以及设置成当沿着对应于期望操作位置的路径处于预定初始位置时接合柱塞的至少一个阻尼器元件用于施加第一相对反馈 所述至少一个阻尼器元件在所述第一方向上移动超过所述预定的初始位置并且向所述柱塞施加相对于所述柱塞的第二相对的反作用力时可屈服于所述柱塞 与柱塞在第一方向上通过后续操作位置的持续移动相反。