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| Number | Title | Issue Date |
| 7290644 | Vibration absorber with dynamic damper In an engine mount (A) whose axis (X) is oriented in the front to rear direction of a vehicle, a damper weight (12) is embedded within a toroidal stopper rubber (10) fixed at its inner periphery to the rear end of an inner cylinder (2). The damp... | 11/06/2007 |
| 7270215 | Loudspeaker enclosure with damping material laminated within internal shearing brace A loudspeaker cabinet with a laminated internal brace which has a first rigid layer coupled to a first exterior panel of the cabinet, a second rigid layer coupled to an a second exterior panel of the cabinet, and a damping layer affixed between the rigid layers wher... | 09/18/2007 |
| 7223055 | Structure for supporting the spindle in a machine tool and method for the manufacture thereof A support structure or sleeve for the spindle of a machine tool consists of a tubular casing, preferably made of sheet steel with a high modulus of elasticity, in contact with a layer of agglomerate obtained by casting inside the casing a mixture formed by a granula... | 05/29/2007 |
| 7210555 | Low frequency acoustic attenuator for use in downhole applications An acoustic attenuator includes a housing having an inner side surface which defines an interior chamber and at least one dampening member both physically and acoustically coupled to the housing and projecting into the interior chamber. Acoustic energy propagating w... | 05/01/2007 |
| 7191997 | Vibration dampening system A vibration dampening system including a upper mounting portion, a lower mounting portion, and a vibration dampening portion coupling the upper mounting portion and the lower mounting portion. In some embodiments, the upper mounting portion is adapted to operably co... | 03/20/2007 |
| 7182306 | Engine mount An engine mount including a rubber elastic body connecting an upper and lower mounting plate fixture and a rebound stopper mechanism having an upper stopper integrally formed with an upper mounting plate fixture and a lower stopper integrally formed with a lower mou... | 02/27/2007 |
| 7134704 | Dashboard support with single-mass oscillation for vibration damping A dashboard support for a motor vehicle includes a support beam extending between windshield pillars of a motor vehicle body; and an active arrangement for implementing a vibration damping. The active arrangement includes a single-mass oscillator which is arranged o... | 11/14/2006 |
| 7114693 | Stable cell platform A stable platform supports a cell, the stable platform comprises a lower mainframe, an upper mainframe, and a dampener system. The upper mainframe includes a plurality of recesses. Each recess is configured to receive a cell. The dampener system connects the lower m... | 10/03/2006 |
| 7090173 | Para-seismic support for pipes A para-seismic support for pipes is disclosed. The support has two support members, each for supporting an end of a pipe on either side of a mechanical joint. The support members are joined to each other. The support is provided with a plurality of holes, at least o... | 08/15/2006 |
| 7079295 | Vibration damping mechanism of image processing device When the speed of carriages that are moved in an image processing device is increased in order to accelerate the processing speed, the acquired image data is degraded due to vibrations being transmitted to the carriages from a motor which drives the carriages. The p... | 07/18/2006 |
| 7017858 | Two-tone isolator assembly The invention proposes to address the vibration transfer function transmitted by a turbo-fan engine or equivalent to the aircraft structure, with two types of isolators mounted on a unique assembly but with a different physical response to the transfer function, an ... | 03/28/2006 |
| 6857615 | Mechanical damping system for structures A mechanical damping system for a structure is provided. The mechanical damping system comprises a tubular impact frame secured to the structure. A support frame is secured to the structure with the support frame spaced from the impact frame. An elongated member is ... | 02/22/2005 |
| 6666108 | Vibration control by confinement of vibration energy Undesirable vibrations are controlled in a mechanical structure by confining the vibrations to one or more specified areas of the structure. Vibration confinement is achieved using a confinement device which effectively applies both translational and tors... | 12/23/2003 |
| 6621694 | Vibration tolerant electronic assembly and related methods A vibration tolerant electronic assembly may include a base and a first isolation stage including a first frame, at least one first linear bearing coupling the first frame to the base to constrain movement of the first frame along a first coordinate axis,... | 09/16/2003 |
| 6390437 | Reinforcement structure for engine mounting portion of automobile A reinforcement structure for engine mounting portion of automobile adapted to reinforce a structural stiffness of an engine mounting portion for mounting an engine in an engine room to thereby reduce vibration and noise transmitted to automobile body fro... | 05/21/2002 |
| 6310769 | Mounting bracket assembly for system components in a computer An apparatus for mounting a component in a computer includes a computer chassis and a mounting bracket assembly attached to the computer chassis. The mounting bracket assembly includes a first structural layer, a second structural layer spaced apart from ... | 10/30/2001 |
| 6145785 | Simplified anti-vibration suspension device with top dampers for a helicopter The anti-vibration suspension device includes at least three diagonal bars each articulated on the structure and on the transmission box by means of a rigid lever supporting a damping weight and itself articulated at least by pivoting on this box, and, fo... | 11/14/2000 |
| 5988585 | Microphone mount A microphone shock mount includes an inner housing, an outer housing extending around the inner housing and top and bottom dampeners which extend between the inner and outer housings. An annular groove is formed in an outer surface of the inner housing ad... | 11/23/1999 |
| 5927678 | Compliant mounting system for automotive components A mounting system for securing a first component compliantly with respect to a second component has a flywheel mounted rigidly with respect to one of the components and compliantly with respect to the other component for rotation in a plane normal to the ... | 07/27/1999 |
| 5887843 | Dynamic damper structure A damping member includes a damper bracket fixed to an upper link bracket, a mass bracket Joined to the damper bracket via an elastic body, and a mass for vibration control supported by the mass bracket, an upper link bracket is provided on a rear axle ho... | 03/30/1999 |
| 5782430 | Device for antivibratory suspension of a helicopter rotor The suspension device comprises, for linking the base (5b) of the transmission gearbox to the fuselage (6), two parallel rods (14), articulated (15) onto lateral supports (16) fixed to opposite sides of the base (5b) and extending on the same side of the ... | 07/21/1998 |
| 5769380 | Rubber vibration isolator with bracket and method of manufacturing the same A rubber vibration isolator with a bracket and a method of manufacturing the same. An elastic rubber member is vulcanization bonded to both a metallic cylindrical portion and an inner sleeve disposed inside of the cylindrical portion in a first securing p... | 06/23/1998 |
| 5765818 | Vibration damping structure for use with a machine tool A vibration damping structure for a machine tool is provided. The structure includes first and second plate members disposed in an opposing spaced apart relationship with one another. A cast structure formed of a polymer concrete extends between the first... | 06/16/1998 |
| 5734246 | Active piezo-electric vibration isolation and directional systems Piezoelectric actuators bonded on S-shaped brackets extending between a support and a payload, improve vibration isolation therebetween by attenuating resonant vibrations under computer dynamic control relying on predetermined dynamic resonant characteris... | 03/31/1998 |
| 5687948 | Vibration isolation system including a passive tuned vibration absorber An isolation system (20) including the combination of an elastomeric mount (25) for attachment between a structure (24) and a vibrating member (22) and further including at least one passive tuned vibration absorber (TVA) (32) attached in the proximity th... | 11/18/1997 |
| 5686773 | Alternator with generally triangular engine-mounting stays The connection structure of alternator mount stays with a drive frame and a rear frame is strengthened so that increased vibration of the alternator's rotor and a stator is prevented and, accordingly, generation of magnetic noise is suppressed. The altern... | 11/11/1997 |
| 5523530 | Elastomeric acoustic insulator An acoustic isolator is incorporated between a noise generating device and a support structure, such as between a transmission housing and an airframe. The isolator has a first fitting which attaches to the noise generating device, and a second fitting wh... | 06/04/1996 |
| 5433421 | Vibration isolating apparatus A vibration isolating apparatus in which a vibrating body, which is disposed within a pressure-receiving liquid chamber and is connected to a mounting member such that a gap is formed between an inner wall surface of the pressure-receiving liquid chamber ... | 07/18/1995 |
| 5361878 | Dynamic two frequency vibration damper A damper, especially for a structural element of an aircraft and especially a propeller driven aircraft in which the propeller generates vibration in the structural element with a fundamental frequency and a frequency which is a harmonic of the fundamenta... | 11/08/1994 |
| 5245807 | Vibration suppressing apparatus for a structure A weight is disposed in an arbitrary story of a structure so as to be movable relative to a direction of motion of the structure. Rotary members are supported in the weight. Rigid members meshing with gears provided on each rotary member are slidably fitt... | 09/21/1993 |
| 5240221 | Viscoelastic damping system A vibration damping assembly incorporating an attenuating body formed from viscoelastic material is disclosed. The body may, in a preferred embodiment, be made up of a plurality of plates stacked together and separated with spacers. The viscoelastic mater... | 08/31/1993 |
| 5197692 | Adaptive fluid mount A double pumper mount useful as a front mount for an aircraft engine. A pair of fluid chambers are selectively interconnectable by one of a plurality of inertia tracks by use of an adjustable cylindrical member which has the tracks formed as generally hel... | 03/30/1993 |
| 5190244 | Antiresonant suspension device for a helicopter The suspension device is interposed between the rotor and the fuselage of the helicopter for filtering the vibration exciting forces and moments coming from the rotor. In this helicopter, a speed reducer (1) is provided in a housing mounted on the fuselag... | 03/02/1993 |
| 5156380 | Damping support for mounting an engine to a frame A mounting to hang an engine to a frame, adapted to insulate the frame from predetermined high-frequency and small-amplitude vibrations. The mounting comprises an envelope, a cover in the form of an elastomeric diaphragm associated with the side walls of ... | 10/20/1992 |
| 5123624 | Torsional damper A torsional damper comprises a pulley hub fixed to a rotary shaft such as the crank shaft of an engine or the like, and a damper mass fixed, by means of a damping rubber, in a cavity formed in the front portion of the pulley hub. A projection is provided ... | 06/23/1992 |
| 5100096 | Vibration free container for transportation A vibration free container for transportation comprises vibration isolating device which are arranged under the container and comprises a lower layer and an upper layer. The lower layer consists of at least two long laminated rubber bodies in the form of ... | 03/31/1992 |
| 5096541 | Method for actively damping vibrations on a paper-making machine The method serves for actively damping vibrations on a paper-making machine. The kinematic quantities which describes the movements of the paper-making machine or parts thereof produced by the vibrations are measured and are processed as measurement signa... | 03/17/1992 |
| 5042162 | Coordinate measuring machine with vibration dampening system A vibration dampening system particularly for use in a gantry-type coordinate measuring machine. The vibration dampening system includes a vibration damper in the gantry structure, a vibration damper in the Z-rail, and means in the supports for the base f... | 08/27/1991 |
| 5020766 | Sound and vibration damper A device for damping vibrations, shocks, blows and noise in hydraulic lines. Hydraulic lines with varying pressure or pulsating flow are passed ducts in a heavy block. The ducts in the block have a greater diameter than the hydraulic lines and the ducts a... | 06/04/1991 |
| 5020978 | Apparatus and method for reducing vehicular fuel pump noise Noise of a vehicular fuel pump is reduced by determining the major frequency range of the objectionable noise and the deformation patterns of vibrating elements of the pump, and providing a passive vibrator which has designed mass, stiffness and damping v... | 06/04/1991 |
