公开(公告)号：US06650108B2

公开(公告)日：2003-11-18

申请号：US09854071

申请日：2001-05-11

Applicant: J. David Carlson ,  Gary W. Adams

Inventor： J. David Carlson ,  Gary W. Adams

IPC: G01N2774

CPC classification number: G01N11/04 ,  G01N27/74

Abstract: A system and method for monitoring the composition of a magnetically permeable material, where the system comprises a first container containing a volume of magnetically permeable material; a flow path for flowing the magnetically permeable material out of the container; a sensor for determining the inductance of the magnetically permeable material; and a sensor for determining the density of the magnetically permeable material. The sensors for determining the density and inductance of the magnetically permeable material are flow connected to the flow path.

Abstract translation: 一种用于监测导磁材料的组成的系统和方法，其中所述系统包括容纳一定体积的导磁材料的第一容器; 用于使所述导磁材料流出所述容器的流动路径; 用于确定导磁材料的电感的传感器; 以及用于确定导磁材料的密度的传感器。 用于确定导磁材料的密度和电感的传感器流动连接到流动路径。

公开(公告)号：US20090294231A1

公开(公告)日：2009-12-03

申请号：US12477101

申请日：2009-06-02

Applicant: J. David Carlson ,  Mark R. Jolly ,  Douglas E. Ivers

Inventor： J. David Carlson ,  Mark R. Jolly ,  Douglas E. Ivers

IPC: F16F9/53 ,  F15C4/00 ,  B23P11/00

CPC classification number: F16F9/537 ,  F16F9/535 ,  Y10T29/49826 ,  Y10T137/2082 ,  Y10T137/2191

Abstract: Please replace the Abstract with the following amended Abstract: A magneto-rheological fluid valve includes a magnetic field generator having at least one electromagnetic coil and at least one magnetic pole having a pole length Lm. The magneto-rheological fluid valve further includes at least one flow channel adjacent to the magnetic field generator. The at least one flow channel has a gap width g, wherein the ratio Lm/g is greater than or equal to 15.

Abstract translation: 摘要：磁流变流体阀包括具有至少一个电磁线圈和至少一个磁极长度Lm的磁极的磁场发生器。 磁流变流体阀还包括与磁场发生器相邻的至少一个流动通道。 所述至少一个流动通道具有间隙宽度g，其中所述比率Lm / g大于或等于15。

公开(公告)号：US07040467B2

公开(公告)日：2006-05-09

申请号：US09737889

申请日：2000-12-15

Applicant: J. David Carlson

Inventor： J. David Carlson

IPC: F16F15/03

CPC classification number: F16F15/03 ,  F16F7/08

Abstract: A friction damper a housing including a cavity formed therein; a first member disposed in said cavity and movable in the cavity; a second member disposed in the cavity; an intermediate member between the first and second members, the first member being in frictional engagement with the intermediate member; and at least one magnetic field generator mounted to magnetically couple the first and second members thereby maintaining the first member in frictional engagement with the intermediate member and wherein the first member is movable against the intermediate member to generate a damping force.

Abstract translation: 一种摩擦阻尼器，其中形成有腔体的壳体; 第一构件，其设置在所述空腔中并且可以在空腔中移动; 设置在所述空腔中的第二构件; 第一构件和第二构件之间的中间构件，第一构件与中间构件摩擦接合; 以及安装成磁耦合第一和第二构件的至少一个磁场发生器，从而保持第一构件与中间构件摩擦接合，并且其中第一构件可抵靠中间构件移动以产生阻尼力。

公开(公告)号：US06611185B2

公开(公告)日：2003-08-26

申请号：US09883024

申请日：2001-06-15

Applicant: J. David Carlson ,  Mitzi R. Vernon ,  Lynn C. Yanyo

Inventor： J. David Carlson ,  Mitzi R. Vernon ,  Lynn C. Yanyo

IPC: H01H900

CPC classification number: F16B5/00 ,  F16B2001/0035 ,  Y10S403/01

Abstract: A joint member for selectively joining first and second members, said joint member comprising a first coupling member comprising a volume of field responsive material and a second coupling member comprising a field generating member for selectively applying a field across the field responsive material, the joint member also comprising means for selectively moving the field responsive material toward and away from the field generating means.

公开(公告)号：US06308813B1

公开(公告)日：2001-10-30

申请号：US09667115

申请日：2000-09-20

Applicant: J. David Carlson

Inventor： J. David Carlson

IPC: F16F912

CPC classification number: F16H61/22 ,  F16H59/10 ,  F16H2059/0282 ,  F16H2061/223

Abstract: An interlock mechanism is provided which includes a controllable fluid within a hydraulic link. The controllable fluid, preferably comprising a magnetorheological fluid, is disposed within the interlock mechanism. The viscosity of the fluid can be changed to allow the interlock mechanism to be actuated. A fluid control means, such as a magnet assembly, is used to control the fluid.

Abstract translation: 提供一种互锁机构，其包括液压连杆内的可控流体。 可控流体，优选地包括磁流变流体，设置在互锁机构内。 可以改变流体的粘度以允许互锁机构被致动。 使用流体控制装置，例如磁体组件来控制流体。

公开(公告)号：US06283859B1

公开(公告)日：2001-09-04

申请号：US09189198

申请日：1998-11-10

Applicant: J. David Carlson ,  Stephen P. Koester

Inventor： J. David Carlson ,  Stephen P. Koester

IPC: A63F922

CPC classification number: G06F3/016 ,  B62D5/006

Abstract: According to the present invention, a haptic interface system, also known as a force feedback system, comprises a motor for supplying actuating energy and a magnetically-controllable device that transfers the actuating energy into force feedback sensations. The magnetically-controllable device contains a magnetically-controllable medium beneficially providing variable resistance forces in proportion to the strength of an applied magnetic field. The system further comprises a computer system having a processor that runs an interactive program or event, a video display for displaying the interactive program or event, and a haptic interface device in operable contact with an operator for controlling inputs to the interactive program. Based on the received inputs and on processing the interactive program, the computer system provides a variable output signal, corresponding to a feedback force, to control the magnetically-controllable device in transferring the actuating energy into feedback force that is actively applied to haptic interface device.

Abstract translation: 根据本发明，触觉界面系统也称为力反馈系统，包括用于提供致动能量的马达和将致动能转换成力反馈感的磁力可控设备。 磁控制装置包含一个磁力可控的介质，有利地提供与所施加的磁场的强度成比例的可变阻力。 该系统还包括具有运行交互式程序或事件的处理器，用于显示交互式程序或事件的视频显示器以及与操作者可操作地接触以控制对交互式程序的输入的触觉接口设备的计算机系统。 基于所接收的输入和处理交互式程序，计算机系统提供对应于反馈力的可变输出信号，以控制磁力可控制器件将致动能量传递到主动施加到触觉接口装置的反馈力 。

公开(公告)号：US06186290B1

公开(公告)日：2001-02-13

申请号：US08958660

申请日：1997-10-29

Applicant: J. David Carlson

Inventor： J. David Carlson

IPC: F16F1503

CPC classification number: F16D57/002 ,  A63B21/00845 ,  A63B21/225 ,  F16D51/00 ,  F16D2121/20 ,  F16D2129/065

Abstract: A magnetorheological brake includes an outer, rotating flywheel member having a hollow interior space, and an inner fixed member disposed in the hollow interior space. The inner fixed member is sized so that a working space is provide between the surfaces of the fixed member and the inner wall of the rotating member. A controllable medium of magnetically permeable metal particles is disposed in the working space. A field generator is mounted in the interior space to the fixed member to selectably generate a field acting on the outer and inner members and the controllable medium in the working space. The rheology change in the medium produced by the field generates resistance to rotation of the outer member about the inner member. A device according to the invention may be used as a flywheel/brake or resistance-generating device in exercise equipment, rotating equipment, such as conveyors, and vehicles.

Abstract translation: 磁流变制动器包括具有中空内部空间的外部旋转飞轮构件和设置在中空内部空间中的内部固定构件。 内部固定部件的尺寸使得在固定部件的表面和旋转部件的内壁之间提供工作空间。 可渗透金属颗粒的可控介质设置在工作空间中。 场发生器安装在固定部件的内部空间中，以可选择地产生作用在工作空间中的外部和内部构件以及可控介质的场。 由该场产生的介质中的流变学变化产生对外部构件围绕内部构件的旋转的阻力。 根据本发明的装置可以用作运动设备，诸如输送机和车辆的旋转设备中的飞轮/制动器或电阻产生装置。

公开(公告)号：US6095486A

公开(公告)日：2000-08-01

申请号：US811896

申请日：1997-03-05

Applicant: Douglas E. Ivers ,  J. David Carlson ,  Mark R. Jolly ,  Michael J. Chrzan ,  Donald R. Prindle ,  Kenneth A. St. Clair

Inventor： Douglas E. Ivers ,  J. David Carlson ,  Mark R. Jolly ,  Michael J. Chrzan ,  Donald R. Prindle ,  Kenneth A. St. Clair

IPC: F16F9/46 ,  F16F9/516 ,  F16F9/53 ,  F16F13/30 ,  F16K31/02

CPC classification number: F16F9/46 ,  F16F13/305 ,  F16F9/535 ,  Y10S137/909

Abstract: A controllable valve assembly (18) applicable in Magnetorheological (MR) fluid devices (20), such as MR mounts and MR dampers. The valve assembly (18) includes a valve body (32) having a magnetic circuit (40) contained therein which carries magnetic flux .PHI., a controllable passageway (42) within the magnetic circuit (40), a MR (magnetically controlled) fluid (44) including soft-magnetic particles in a liquid carrier contained in the controllable passageway (42), a magnetic flux generator, such as a wound wire coil (46), generating magnetic flux .PHI. which is directed through the MR fluid (44) in the controllable passageway (42) thereby generating "rheology" changes causing restriction in flow of MR fluid (44) therethrough. In one aspect, a one-way check valve (34) is operative with a passive passageway (36) which is arranged in parallel relationship to the controllable passageway (42) provides "asymmetric" damping across the controllable valve (18) creating higher pressure differentials in a first direction and a lower in a second direction without "rapidly switching" the current to the coil (46). In another aspect, "asymmetric" damping is provided by a "changeable gap" formed by a moveable wall portion of the controllable passageway (42). In a third aspect, a first controllable passageway provides controllable flow in a first direction and a second controllable passageway provides controllable flow in a second direction, thereby provide "asymmetry." In a fourth aspect, "asymmetry" is provides by a "variable magnetic short" which changes magnetic circuit reluctance dependent on flow direction.

Abstract translation: 一种可应用于磁流变（MR）流体装置（20）的可控阀组件（18），例如MR安装座和MR阻尼器。 阀组件（18）包括阀体（32），其具有容纳磁通量PHI的磁路（40），磁路（40）内的可控通路（42），MR（磁控制）流体 44）包括包含在可控通路（42）中的液体载体中的软磁粒子，诸如绕线线圈（46）的磁通量产生器，其产生通过MR流体（44）引导的磁通量PHI 可控通道（42）从而产生“流变学”变化，从而限制MR流体（44）的流动。 在一个方面，单向止回阀（34）与被动通道（36）一起操作，被动通道（36）与可控通道（42）平行地布置，提供横跨可控阀（18）的“非对称”阻尼，从而产生更高的压力 在不使“电流”快速切换到线圈（46）的情况下，在第一方向和第二方向上的差分。 另一方面，通过由可控通路（42）的可动壁部分形成的“可变间隙”来提供“不对称”阻尼。 在第三方面，第一可控通道在第一方向上提供可控制的流动，第二可控通道在第二方向上提供可控制的流动，从而提供“不对称”。 在第四方面，通过根据流动方向改变磁路磁阻的“可变磁短路”来提供“不对称”。

公开(公告)号：US5842547A

公开(公告)日：1998-12-01

申请号：US674371

申请日：1996-07-02

Applicant: J. David Carlson ,  Douglas F. LeRoy ,  John C. Holzheimer ,  Donald R. Prindle ,  Robert H. Marjoram

Inventor： J. David Carlson ,  Douglas F. LeRoy ,  John C. Holzheimer ,  Donald R. Prindle ,  Robert H. Marjoram

IPC: F16D55/00 ,  F16D57/00 ,  F16D63/00 ,  F16D65/00 ,  F16D65/14 ,  F16F15/03

CPC classification number: F16D57/002 ,  F16D55/00 ,  F16D57/00 ,  F16D65/00 ,  F16D2121/20

Abstract: A controllable brake (20) including a rotor (28) supported by a shaft (30) which is rotatably supported by bushings (42) received in housing (22). A coil assembly (48) creates a magnetic field within a pole piece (32), which is preferably manufactured from a powdered metal material, which preferably has a density of between about 6.8 and 7.0 gm/cm. A magnetically-soft medium is contained within first and second gaps (86, 88) located between pole piece (32) and rotor (28). In one aspect, a magnetic saturation zone (25) reduces the propensity of magnetizing the shaft (30). In another, the pole halves (24, 26) are received in radially-spaced pole pockets (37) formed in the housing (22) and include an axial bias spring (70) to ensure intimate contact. In another aspect, a lip projection (76) traps fluid (23) between the lip projection (76) and shaft (30) and minimizes fluid exposure to the shaft seal (44). In another aspect, cooling fins (55) or a projection (53) restrains rotation of the housing (22). In another aspect, a spring (46) centers the rotor (28) relative to the housing (22).

Abstract translation: 一种可控制动器（20），包括由轴（30）支撑的转子（28），所述转子由轴承（22）中的套筒（42）可旋转地支撑。 线圈组件（48）在极片（32）内产生磁场，该磁极优选地由粉末状金属材料制成，其优选地具有在约6.8和7.0gm / cm之间的密度。 磁软介质包含在位于极片（32）和转子（28）之间的第一和第二间隙（86,88）内。 在一个方面，磁饱和区（25）降低了使轴（30）磁化的倾向。 另一方面，极半部（24,26）被容纳在形成在壳体（22）中的径向间隔开的磁极腔（37）中并且包括轴向偏置弹簧（70）以确保紧密接触。 在另一方面，唇突起（76）捕捉唇突起（76）和轴（30）之间的流体（23）并使流体暴露于轴封（44）最小化。 在另一方面，冷却翅片（55）或突起（53）限制壳体（22）的旋转。 在另一方面，弹簧（46）使转子（28）相对于壳体（22）居中。

公开(公告)号：US5645752A

公开(公告)日：1997-07-08

申请号：US575240

申请日：1995-12-20

Applicant: Keith D. Weiss ,  Donald A. Nixon ,  J. David Carlson ,  Anthony J. Margida

Inventor： Keith D. Weiss ,  Donald A. Nixon ,  J. David Carlson ,  Anthony J. Margida

IPC: C10M125/26 ,  C10M139/04 ,  C10M155/02 ,  C10N10/08 ,  C10N20/04 ,  C10N20/06 ,  C10N30/04 ,  C10N30/06 ,  C10N40/14 ,  H01F1/28 ,  H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological material containing a carrier fluid, a particle component and a thixotropic additive to provide stability against particle settling. The thixotropic additive can be a hydrogen-bonding thixotropic agent, a polymer-modified metal oxide, or a mixture thereof. The utilization of a thixotropic additive creates a thixotropic network which is unusually effective at minimizing particle settling in a magnetorheological material.

Abstract translation: 含有载体流体，颗粒组分和触变添加剂的磁流变材料，以提供对颗粒沉降的稳定性。 触变添加剂可以是氢键触变剂，聚合物改性金属氧化物或其混合物。 触变添加剂的利用产生了触变网络，其在使磁流变材料中的颗粒沉降最小化方面异常有效。