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| Number | Title | Issue Date |
| 8100389 | Pneumatic actuator for vibration damping device and vibration damping device using the same A pneumatic actuator for use in a vibration damping device comprising: a base housing; an elastic wall member being fastened fluid-tightly to the base housing to form a working air chamber therebetween; and an urging member positioned within the working air chamber ... | 01/24/2012 |
| 8002251 | Vibration reduction system employing active bearing mounts A vibration reduction system is provided for use in conjunction with a rotational device including a stationary body, a rotating body, and a first bearing assembly disposed between the stationary body and the rotating body. The vibration reduction system includes a ... | 08/23/2011 |
| 7878489 | Controlling vibrations In order to control vibrations of two parts of a piece of machinery, a variable force may be generated to oppose the vibrations, with the variable force being generated under control of a controller on the basis of an iterative relationship, the iterative relationsh... | 02/01/2011 |
| 7694946 | Suspension system having active compensation for vibration A suspension system for a seat of a vehicle comprises a base, a linkage, and a seat attached to the base via the linkage. A pneumatic shock absorber provides a respective resistance level against movement of the seat with respect to the base based on a corresponding... | 04/13/2010 |
| 7430788 | Magnetorheological nanocomposite elastomer for releasable attachment applications A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements exte... | 10/07/2008 |
| 7422092 | Controllable compressible fluid damper A damper/strut that can provide variable damping and spring energy storage and dissipation. One embodiment includes an adjustable magnetorheological damper and a mechanically adjustable fluid spring in association with an internal accumulator. A combination of inter... | 09/09/2008 |
| 7416173 | Pneumatically switchable type fluid-filled engine mount A fluid-filled engine mount, including: an elastic body connecting a first and a second mounting member; a pressure receiving chamber partially defined by the rubber elastic body; an equilibrium chamber partially defined by a flexible layer, a first orifice passage ... | 08/26/2008 |
| 7413174 | Fluid-filled type vibration-damping device A fluid-filled type vibration-damping device having: an elastic body connecting first and a second mounting members; a pressure-receiving chamber formed axially below the main rubber elastic body and partially defined by the main rubber elastic body; an equilibrium ... | 08/19/2008 |
| 7383929 | Anti-vibration technique An anti-vibration apparatus includes a first magnet unit arranged on a support target and including a first permanent magnet, and a second magnet unit including a pair of second permanent magnets. The pair of second permanent magnets is arranged to interpose the fir... | 06/10/2008 |
| 7370853 | Vibration isolating bushing with embedded angular position sensor A bushing assembly adapted for application in vehicle suspension systems includes an outer, generally cylindrical bushing member, an inner generally cylindrical bushing member arranged concentrically within the outer member. The two bushing members are interconnecte... | 05/13/2008 |
| 7364022 | Controllable magneto-rheological fluid devices for motion-damping Variably controllable motion-damping devices are disclosed that utilize a magneto-rheological fluid (MRF). One configuration of such a device includes a first valving region and a second valving region connected to the first valving region. Between the first and sec... | 04/29/2008 |
| 7350776 | Fluid-filled type vibration-damping device A fluid-filled type vibration-damping device having an elastic rubber film partially defining a primary fluid chamber at one surface and partially defining a pressure action chamber. The pressure action chamber varies its pressure under control so that the elastic r... | 04/01/2008 |
| 7344129 | Damping method and damping system for hybrid vehicle A damping method for a hybrid vehicle in which a power unit consisting of an engine and a motor is supported in a vehicle body frame via an active vibration isolation support system includes: a step of firstly damping vibration of the power unit by the active vibrat... | 03/18/2008 |
| 7338036 | Switchable assembly bearing with hydraulic damping The invention relates to a switchable assembly bearing that comprises at least one working chamber and one compensation chamber which are separated by a dividing wall. The working chamber and compensation chamber are hydraulically interconnected by means of a dampin... | 03/04/2008 |
| 7311300 | Actuator drive control device for active vibration isolation support system, and method of using the same An actuator of an active engine vibration isolation support system is driven based on the first, second, third . . . duty groups calculated corresponding to the vibration periods t1, t2, t3 . . . of the engine. When the engine rotational speed v... | 12/25/2007 |
| 7290642 | Magnetic spring device with negative stiffness A magnetic spring device with negative stiffness contains at least one first pole body combination composed of at least one first, at least one second and at least one third pole body, which each have opposite magnetic poles, with the pole bodies in the combination ... | 11/06/2007 |
| 7288861 | Inertial actuator with multiple flexure stacks An inertial actuator for active vibration control utilizes a single cylindrical actuator module of the “voice coil” type. A moving armature assembly, including a soft iron shell with a tubular sleeve coaxially surrounding a core with two permanent magnets and co... | 10/30/2007 |
| 7282819 | Stage apparatus, exposure apparatus, and device manufacturing method A stage apparatus in which support units supporting a counter-mass surface plate on a reference surface each include a first permanent magnet disposed on one of the surface plate and the reference surface, and a pair of second permanent magnets disposed on the other... | 10/16/2007 |
| 7264235 | Active damping apparatus, exposure apparatus and device manufacturing method An active damping apparatus for damping vibration due to driving of a stage and/or counter-mass mounted on an isolation table in an exposure device for the manufacture of semiconductor devices has a setting unit for selecting the stage and/or the counter-mass to dri... | 09/04/2007 |
| 7258331 | Acoustically decoupled hydraulic bearing A hydraulic bearing includes a support spring made of elastomeric material and a hydraulic volume partitioned into a work chamber and a compensating chamber. A partition wall is disposed between the two chambers and includes a transfer channel. For acoustic decoupli... | 08/21/2007 |
| 7255335 | Fluid-filled active damping apparatus A fluid-filled active damping apparatus having a pressure receiving chamber partially defined by a rubber elastic body connecting a first and second mounting member; an oscillation plate defining a part of the pressure receiving chamber, and supported in a displacea... | 08/14/2007 |
| 7240777 | Constrained layer damping assembly A constrained layer damping assembly for a rigid base member having a substantially planar surface comprises a gas impervious damping layer disposed on the substantially planar surface of the base member, and a load element disposed on the damping layer. The damping... | 07/10/2007 |
| 7222823 | Payload adapter A payload adapter consists of a body that when hollow includes a plurality of stiffeners—radial and/or circumferential—or alternatively a core for carrying shear loads. The body may include a first annular face sheet, a second annular face sheet and a plurality ... | 05/29/2007 |
| 7216857 | Hydraulic antivibration device A hydraulic antivibration device is provided that is capable of suppressing generation of strange sounds while ensuring a low dynamic spring characteristic upon inputting of relatively small amplitude vibration and a high damping characteristic upon inputting of rel... | 05/15/2007 |
| 7194344 | System and method to control a switchable powertrain mount A strategy controls alternate anti-vibration modes in a switchable powertrain mount using vehicle operational status sensors and pre-selected thresholds. The switchable mount modes can include engine off-idle and an idle mode. Vehicle sensors and pre-selected thresh... | 03/20/2007 |
| 7192014 | Active vibration isolation support system An active vibration isolation support system, supplies current to a coil of an actuator according to the vibrational state of an engine, so that the actuator moves out and back a movable member to which an elastic body is connected. The elastic body is then deformed... | 03/20/2007 |
| 7188830 | Fluid-filled active damping apparatus A fluid-filled active damping apparatus having a pressure receiving chamber divided by a partition member into a primary fluid chamber and an auxiliary fluid chamber. The partition member houses a movable plate extending entirely across between opposing faces of upp... | 03/13/2007 |
| 7168532 | Wave energy converter (WEC) with magnetic braking A magnetic braking system for inhibiting excessive motion between a float and a column intended to be placed in a body of water; with the float and column moving relative to each other as a function of the waves present in the body of water. The braking system inclu... | 01/30/2007 |
| 7157821 | Electromagnetic actuator An electromagnetic actuator includes a fixed core supported by a bottom wall of a housing, a movable core arranged opposite to the fixed core via an air gap to drive the movable member, and coil assembly supported by the housing to surround both the cores, wherein t... | 01/02/2007 |
| 7137634 | Active control type mounting bushing device for vehicle An active control type mounting bushing device adapted to properly change the hardness of the mounting bushing according to a driving state, thereby obtaining a proper hardness of the mounting bushing for obtaining a comfortable ride during normal driving conditions... | 11/21/2006 |
| 7118100 | Magnetorheological-fluid hydraulic mount A magnetorheological-fluid hydraulic mount includes a hydraulic-mount partition plate assembly, a hydraulic-mount decoupler, an electric coil, and a flexible membrane assembly. The partition plate assembly has first and second sides, has a non-magnetorheological-flu... | 10/10/2006 |
| 7113064 | Active device for damping the vibrations of a vibrating element An active device for damping vibration comprises an actuator comprising a magnetically permeable armature and a coil associated with a magnetically permeable yoke sliding along a displacement axis under the effect of a magnetic field generated by a current conveyed ... | 09/26/2006 |
| 7093806 | Method and system for decoupling structural modes to provide consistent control system performance A method and system for calculating a control function for a structural system (10) that can be used to determine an appropriate control force to apply to an active member (18) within a stationary member (12) on the structural system (10)... | 08/22/2006 |
| 7090171 | Momentum stabilized launch vehicle upper stage A spacecraft system including a spacecraft assembly or “stack” having an upper stage of a rocket-powered launch vehicle providing a final boost phase during launch. The stack also includes a payload structure rotatably interconnected with the upper stage. The up... | 08/15/2006 |
| 7070708 | Magnetorheological fluid resistant to settling in natural rubber devices A MR fluid formulation based upon a silicone liquid vehicle thickened with a treated fumed metal oxide and doped with one or more chemicals having hydrogen-bonding capability for use with natural rubber mounts. The MR fluid is resistant to settling of the magnetizab... | 07/04/2006 |
| 7066454 | Active type vibration isolating support system An active type vibration isolating support system includes: an elastic body for elastically supporting a vibratory body; a liquid chamber to be defined by the elastic body; a movable member for changing capacity of the liquid chamber; and an actuator for driving the... | 06/27/2006 |
| 7036804 | Bi-state hydraulic mount with integral controller A hydraulic mount having first and second fluid tracks, and a decoupler functioning as an air spring with two remotely selectable settings. The settings allow tailoring of the air spring characteristics to provide mount damping for differing engine operating states,... | 05/02/2006 |
| 7025341 | Pneumatically operated fluid filled engine mount for vehicles A fluid filled engine mount including: a pressure-receiving chamber and an equilibrium chamber connected via a first orifice passage tuned to excite resonance of fluid flowing therethrough to engine shakes; a partition rubber plate partially defining a pressure rece... | 04/11/2006 |
| 7025342 | Actuator drive control device for active vibration isolation support system, and method of using same In an actuator drive control device for an active vibration isolation support system, accumulated time of eight time intervals tn of crank pulses which are outputted at every 15 degrees of a crank angle in a vibration period corresponding to 120 degrees of the crank... | 04/11/2006 |
| 7021611 | Method for controlling drive of actuator of active vibration isolation support system A method for controlling the drive of an actuator of an active vibration isolation support system is provided in which one cycle of the actuator moving a movable member out and back is divided into a plurality of micro time regions, a voltage applied to the actuator... | 04/04/2006 |
