Resiliently Supported Damping Mass Patents (Class 188/379)
  • Patent number: 10376968
    Abstract: The present invention provides an arbor damping device, including a rod body, a damper, two flexible absorbers and at least one flexible damping adjusting member. The rod body has an internal chamber, and the internal chamber includes a circumferential wall and two end walls. The damper is received in the internal chamber. The damper includes a side surface opposite to the circumferential wall and two end surfaces respectively opposite to the two end walls. The two flexible absorbers are disposed between the two end walls and the two end surfaces respectively. The at least one flexible damping adjusting member is radially disposed between the circumferential wall and the side surface, and axially disposed between the end walls and the two flexible absorbers.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: August 13, 2019
    Assignee: LEE CHEE ENTERPRISE CO., LTD.
    Inventors: Kun-Chi Lo, Tsung-Hsin Lu
  • Patent number: 10377072
    Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller starts active control after the amplitude of displacement vibration of the take-out head as an attachment has been attenuated to a predetermined setting by means of positioning control by a servomotor or when the amplitude can be considered as having been attenuated to the predetermined setting. The positioning control is first performed by the servomotor, and then the active control is performed by the active controller using an electric actuator which is light in weight and small in size.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: August 13, 2019
    Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.
    Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
  • Patent number: 10377059
    Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller performs active control in conjunction with the positioning, control by the servomotor. At the beginning of the active control, the positioning control is primarily performed by the servomotor, and then the active control is positively performed by the active controller using an electric actuator. Compared with when only the active control is performed for vibration suppression, a lighter and smaller electric actuator can be employed.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: August 13, 2019
    Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.
    Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
  • Patent number: 10376964
    Abstract: A tool holder is provided comprising a base body for coupling with a drive spindle that can be driven rotatingly, whereon a clamping chuck for clamping a tool is provided, further comprising a damping element arranged between the base body and the clamping chuck, wherein the damping element is made of an elastomeric material or of a shape memory alloy, and wherein the clamping chuck is solely connected to the base body by means of the damping element.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: August 13, 2019
    Assignee: Bilz Werkzeugfabrik GmbH & Co. KG
    Inventors: Juergen Fronius, Attilio Mandarello, Werner Schneider
  • Patent number: 10293925
    Abstract: Systems, methods, and computer program products for directional force weighting of an active vibration control system involve arranging a plurality of force generators in an array, identifying individual component forces corresponding to force outputs of each of the plurality of force generators, determining a combination of the individual component forces that will produce a desired total force vector, and adjusting the outputs of each of the plurality of force generators such that the combination of the individual component forces are at least substantially similar to the desired force vector.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 21, 2019
    Assignee: LORD Corporation
    Inventors: Mark R. Jolly, Paul R. Black, Doug A. Swanson, Doug G. Pedersen
  • Patent number: 10232936
    Abstract: The present invention includes a damper assembly, method and kit to provide dampening to an airframe comprising: a mass to dampen the vibration of the airframe; one or more wire rope isolators having a first and a second portion, wherein the mass is attached to the one or more wire rope isolators and the mass is isolated from the airframe by the one or more wire rope isolators; and a first fastener and a second fastener, wherein the first fasteners attaches to the first portion of the wire rope isolator to the mass, and the second fastener attaches the second portion of the wire rope isolator to the airframe to dampen vibration of the airframe.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 19, 2019
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventors: Michael Seifert, Peter Quinn Romano, Thomas Parham
  • Patent number: 10220652
    Abstract: A bicycle wheel assembly may include a rim, a hub assembly, a plurality of spokes and a damper assembly. The damper assembly includes a damping element configured to apply a damping force against at least one spoke of the plurality of spokes. The damping force may be applied in an axial direction of the bicycle wheel and/or to a segment of the at least one spoke near the hub assembly.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 5, 2019
    Assignee: SRAM, LLC
    Inventor: Charles Emmett Dunlap, III
  • Patent number: 10213808
    Abstract: A shaking unit for the generation of one-dimensional oscillating movements of a machine part mass is provided having a coupling part for mechanical coupling to the machine part mass, a counter-mass which is coupled resiliently to the coupler part and, via the latter, to the machine part mass, and a drive system which acts in a sprung manner between the coupler part and the counter-mass. The coupling part may surround the counter-mass as a frame. At least one of two pneumatic springs of the drive system, which are arranged on both sides of the counter-mass, is loaded with a minimum and/or with a maximum load pressure of the pneumatic springs depending on an oscillation state.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: February 26, 2019
    Assignee: Voith Patent GmbH
    Inventor: Jürgen Banning
  • Patent number: 10183638
    Abstract: Polymeric shock absorbing element for a vehicle including a substantially honeycomb structure having a plurality of channels which has a lateral external surface extending from a first open frontal end to a second open rear end, the shock absorbing element insertable and securable within an internal lateral cavity of a chassis of said vehicle, the internal lateral cavity being defined by at least two metallic plates. The lateral external surface includes at least one substantially planar face positioned on one side of the polymeric shock absorbing element and the additionally includes at least one metallic fixing element having a central portion which in turn includes a first central wall which is made integral with a corresponding substantially planar face of the lateral external surface, the at least one metallic fixing element additionally includes a plurality of side stiffeners which are weldable or made integral with the two metallic sheets.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: January 22, 2019
    Assignee: TRES S.r.l.
    Inventor: Stefania Zannier
  • Patent number: 10156278
    Abstract: A dynamic damper for dampening vibrations of a vehicle includes a cylindrical mass member with circumferentially arranged protrusions, a coaxial collar member including an annular ridge on an outer surface having a larger diameter than a body of the collar member, and a coaxial elastic member disposed between the cylindrical mass member and the collar member. The protrusions of the mass member can extend over an outer surface of the annular ridge of the collar member.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 18, 2018
    Assignees: HONDA MOTOR CO., LTD., YUSA CORPORATION
    Inventors: Tsutomu Tamura, Kishan Kari, Brian Welch
  • Patent number: 10119593
    Abstract: A vibration isolation device (10) includes a first mounting member (11) connected to one of a vibration generating portion and a vibration receiving portion, and a second mounting member (12) connected to the other; an elastic body (13) disposed between the mounting members (11, 12); a first stopper elastic body (27) having a first stopper surface (26) which is disposed on either one of opposing surfaces (24, 25) that oppose each other, respectively on the first mounting member (11) and the second mounting member (12), and which faces the other surface such as to be capable of coming into contact therewith; and a second stopper elastic body (29) having a second stopper surface (28) which is disposed on either one of the opposing surfaces (24, 25), respectively on the first mounting member (11) and the second mounting member (12), and which faces the other surface such as to be capable of coming into contact therewith.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: November 6, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Hiroshi Kojima
  • Patent number: 10113606
    Abstract: A vibration ring is provided to remove vibratory energy from a machine driveline. The vibration ring includes a compression cage configured to generate vibratory excitation within a material. The material is configured to generate an electric charge dissipated through or harvested by an electric circuit.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 30, 2018
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventor: Vivake M. Asnani
  • Patent number: 10078097
    Abstract: A vibration sensor having a moveable mass being suspended in a suspension member and being adapted to move in response to vibrations or accelerations. The moveable mass and the suspension member are rigidly connected across one or more gaps formed by respective opposing surfaces of the moveable mass and the suspension member. The vibration sensor includes a damping arrangement having a damping substance. The moveable mass is arranged to interact directly or indirectly with the damping substance in order to reduce a mechanical resonance peak of the vibration sensor.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 18, 2018
    Assignee: Sonion Nederland B.V.
    Inventors: Eddy Dubbeldeman, Raymond Mögelin
  • Patent number: 10024381
    Abstract: Embodiments are directed to tunable damper embodiments and methods of using the same for damping resonant and non-resonant vibrations present within an object that the tunable damper is secured to. In some cases, the tunable damper may be tuned before, during or after being secured to an object.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 17, 2018
    Assignee: NEWPORT CORPORATION
    Inventor: Vyacheslav M. Ryaboy
  • Patent number: 10023003
    Abstract: A damper assembly for a bicycle wheel assembly may include a first damper configured to be disposed about a hub assembly of the bicycle wheel assembly. The first damper is configured to apply a first damping force against a spoke segment of at least one spoke of a plurality of spokes of the bicycle wheel assembly. The spoke segment is spaced apart from a spoke attachment member.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 17, 2018
    Assignee: SRAM, LLC
    Inventor: Charles Emmett Dunlap, III
  • Patent number: 10024378
    Abstract: A vibration absorber module for a vibration-absorbing device, in particular for a vibration-absorbing device realized for suspended attachment of the vibration absorber module to a structural installation, having a bearing structure, a pendulum system, having a pendulum mass, and having a suspension system for suspending the pendulum mass on the bearing structure, the suspension system having a number of pendulum spring elements and having a pendulum mass suspension, which extends between the pendulum mass and the bearing suspension, in the direction of a suspension axis, and the pendulum mass suspension being fastened, by means of its suspension head, to the bearing structure.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: July 17, 2018
    Assignee: Wobben Properties GmbH
    Inventors: Malte Könitz, Martin Kraft
  • Patent number: 9993876
    Abstract: A cutting tool holder has a holder body and a vibration damping weight assembly. The holder body has opposing first and second side surfaces and a top surface extending therebetween, and an insert mounting portion located at a front end of the holder body adjacent to the top surface. A weight aperture opens out to the first and second side surfaces and has an aperture inner surface. The weight assembly is located within the weight aperture, having a first and second weight portions, a damping ring located along the aperture inner surface, and an actuating member interfacing and urging the first and second weight portions away from one another, such that each weight portion presses against the damping ring within the weight aperture.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 12, 2018
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Ofir Zagagy, Jony Saffouri, Ilya Men
  • Patent number: 9897159
    Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert P. Marble, Gary Klein, Charles C. Weddle, Michael E. Mcguire
  • Patent number: 9862032
    Abstract: A tool chuck for clamping a tool in a machine tool, having a base body and a sleeve part protruding therefrom, which sleeve part forms a tool holder for fixing a tool shaft in a frictional, nonpositive fashion; a cavity in which a vibration damping component is accommodated is provided in the tool chuck.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: January 9, 2018
    Assignee: Franz Haimer Maschinenbau KG
    Inventor: Franz Haimer
  • Patent number: 9623821
    Abstract: A vehicle bumper structure is provided with a functional component having a function other than an impact absorbing function, and an absorber is provided between a bumper cover and reinforcement. The absorber includes a first impact absorbing member that has a hole near the functional component, and a second impact absorbing member that is inserted into the hole and is more rigid than the first impact absorbing member. The second impact absorbing member may also have a protruding portion that protrudes outward on a side surface with respect to an insertion direction into the hole.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 18, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki Tachibana, Kento Sawada, Masayuki Taguchi, Takahisa Itou
  • Patent number: 9616502
    Abstract: A cutting tool holder has a holder body and a vibration damping weight assembly. The holder body has first and second side surfaces, and a top surface extending there between, and a cutting portion located at a front end of the holder body at the top surface thereof. A weight aperture opens out to the first and second side surfaces and has an aperture inner surface. A weight assembly is located within the weight aperture, having a first weight portion with a through hole, a second weight portion with a threaded hole, a damping ring located along the aperture inner surface, and a fastening member configured to connect together and urge the first and second weight portions towards one another, such that the contact surface of each weight portion presses against the damping ring, within the weight aperture.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 11, 2017
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9521753
    Abstract: A vibration damping circuit card assembly includes a populated circuit card having a mass M. A closed metal container is coupled to a surface of the populated circuit card at approximately a geometric center of the populated circuit card. Tungsten balls fill approximately 90% of the metal container with a collective mass of the tungsten balls being approximately (0.07) M.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: December 13, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Ronald Allen Hunt
  • Patent number: 9470288
    Abstract: A vibration mitigation device configured to be fixedly coupled to a generally horizontally extending support member. The vibration mitigation device includes a generally vertically extending housing extending from the generally horizontally extending support member and a reciprocating assembly coupled with and fully enclosed inside of the generally vertically extending housing.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: October 18, 2016
    Assignee: VALMONT INDUSTRIES, INC.
    Inventors: Carl J. Macchietto, Richard E. Christenson, Darren E. Ingram
  • Patent number: 9463545
    Abstract: Reference phase variation values ?k1 to ?Kn, each of which is a variation among a plurality of phases that occur during non-machining and phase variation values ?1 to ?n, each of which is a variation among a plurality of phases that occur during machining are detected from measured vibration with the use of a chattering detector that is used to calculate phases of a desired number (n) of frequencies. If ?Ki??i is smaller than a determination value TK, it is determined that chattering having a frequency i is occurring.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: October 11, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Toshiyuki Okita, Ryota Tanase, Shigeru Matsunaga
  • Patent number: 9410597
    Abstract: Radial vibration dampers (RVD's) press-fittable to a shaft and shaft systems incorporating RVD's are disclosed herein. The RVD's include a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side and a spring damper material seated in the annular chamber and axially compressed between the two inertia members. The spring damper material has a compressible portion protruding from the radially facing, open side so that, when the compressible portion is compressed against a shaft, the spring damper material defines a gap between the shaft and the inertia members. The RVD may be press-fittable inside a hollow shaft or to the outside of a hollow or solid shaft. The RVD's disclosed herein have first vibration mode shapes that are radial in nature and decoupled from latter vibration modes.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 9, 2016
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventor: Suhale Manzoor
  • Patent number: 9381608
    Abstract: When generation of a chatter vibration is detected, a parameter calculation device calculates a first frequency range and a second frequency range. A determination validity is calculated in consideration of a rotation speed detection resolution and a frequency resolution, and based on a ratio of a frequency range of rotational-period forced chatter vibration to a frequency range of regenerative chatter vibration. It is determined based on the determination validity whether the generated chatter vibration is regenerative chatter vibration, rotational-period forced chatter vibration, or flute-passage-period forced chatter vibration.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 5, 2016
    Assignee: Okuma Corporation
    Inventor: Takaaki Tanaka
  • Patent number: 9279471
    Abstract: A vibration isolator includes an upper housing and a lower housing; an upper reservoir housing defining a upper fluid chamber; a lower reservoir housing defining a lower fluid chamber; a piston spindle resiliently coupled to the upper housing with an upper elastomer member, the piston spindle being resiliently coupled to the lower housing with a lower elastomer member; an elongated portion having a tuning passage; and a tuning fluid disposed there within. The vibration isolator cancels vibratory forces at an isolation frequency. The vibration isolator is utilized in a pylon system for mounting a transmission in an aircraft. The vibration isolator is located between a pylon structure and a roof structure. The isolator includes a spherical bearing assembly that is located near a waterline location of a rotational axis of a drive shaft.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 8, 2016
    Assignee: Textron Innovations Inc.
    Inventor: Maurice D. Griffin
  • Patent number: 9169894
    Abstract: The invention relates to a device for vibration control of a structure having—two mass bodies (10, 20), each of which is rotatably mounted around a rotational axis (12, 22), wherein both rotational axes extend in the same direction and the center of gravity of each mass body has a spacing (r1, r2) from the associated rotational axis,—a drive that sets each mass body (10, 20) in a circulating rotational motion,—at least one sensor (40), which measures a movement or acceleration of the structure (30), and—a control that, based on the measured movement or acceleration, controls at least one of the following variables:—the rotational angle (?1, ?2) of the rotational movement of at least one mass body (10, 20),—the spacing (a) between the rotational axis (12) of one mass body (10) and the rotational axis (22) of the other mass body (20).
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: October 27, 2015
    Assignee: SOLETANCHE FREYSSINET
    Inventor: Uwe Starossek
  • Patent number: 9133903
    Abstract: A vibration damping device has a first support member and a second support member. A first component and a second component are disposed between the first support member and the second support member to define a first fluid chamber and a second fluid chamber. A channel extends between the first and second chambers. During compression and extension of the vibration damping device, fluid transfers between the first and second chamber to provide a damping force for the vibration damping device. The fluid within the chambers of the vibration damping device has a fluid density in the range of 1.25 g/cm3 to 2.2 g/cm3, a fluid viscosity below 10 cSt @ 20° C. and a fluid surface tension below 40 dynes @ 20° C.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: September 15, 2015
    Assignee: The Pullman Company
    Inventors: Joshua R. Goossens, Zoren E. Gaspar
  • Patent number: 9126347
    Abstract: A microscopic geometry cutting device includes: a controller that outputs a timer count start command in starting a driving program which controls a drive of an X-axis or a Y-axis moving mechanism; an arrival time calculator that calculates an arrival time from when the timer count start command is output till when the cutter arrives at a machining start position in accordance with relative moving speed information of the moving mechanisms and machining start position information of a workpiece W; an elapsed time determiner that determines whether an elapsed time from when the timer count start command is output is coincident with the arrival time and outputs a trigger signal when the elapsed time is coincident with the arrival time; and a reciprocating stage driver that drives the reciprocating stage in a manner that the cutter advances and retracts in a predetermined cutting depth in response to the trigger signal.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: September 8, 2015
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Seiji Kimura, Sumihisa Kondo
  • Patent number: 9120453
    Abstract: Since an airbag module is supported in an interior of a steering wheel via an elastic body so as to be capable of vibrating, the airbag module vibrates while deforming the elastic body to thus function as a dynamic damper, thereby enabling vibration of the steering wheel to be suppressed. Since the elastic body is formed from a support pin itself, which supports the airbag module on the frame of the steering wheel, compared with a case in which the support pin and the elastic body are formed from separate members, it is possible to reduce the number of components and the number of assembly steps. A part of the support pin may form the elastic body, and the entirety of the support pin may form the elastic body.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: September 1, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuya Obayashi, Takeru Fukuda
  • Patent number: 9079256
    Abstract: A tool holder (1) in the form of a boring head, a chuck, a milling cutting arbor, or the like, is equipped with a damping element (2) in the form of an elongated body that is arranged in an end housing (3) of the tool holder (1), with corresponding shape and size. The tool holder that is characterized in that it includes a device (4) for preventing excessive heating of the damping element (2). The tool holder is more particularly applicable in the field of numerically-controlled machine tool accessories, machining centers, and flexible cells and workshops.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: July 14, 2015
    Assignee: SECO-E.P.B.
    Inventors: Alain Freyermuth, Matthieu Ostermann, Cedric Roos
  • Patent number: 9045159
    Abstract: An inflator (10) for a vehicle airbag module comprises an external housing (12) in which a combustion chamber (36) is formed, wherein the inflator (10) can be supported to be oscillating on a body-side component of the vehicle, especially on a component of the airbag module. Inside the external housing (12) a separate balancing weight (58) is arranged for adjusting the vibration behavior of the inflator (10), wherein the balancing weight (58) has no further inflator-specific function. In an airbag module for a vehicle including such inflator (10) the latter is supported by its retaining means on another component of the airbag module so that it is adapted to oscillate about a suspension plane.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 2, 2015
    Assignee: TRW AIRBAG SYSTEMS GMBH
    Inventors: Alin-Silviu Dogarescu, Franz Furstenberger
  • Patent number: 9033124
    Abstract: A damper device is coaxial with a central axis of an electric compressor. The damper device includes a base portion and first and second weight portions. The base portion is configured to be fixed to a casing of the electric compressor. The first and second weight portions are oscillatable relative to the base portion.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 19, 2015
    Assignee: DENSO CORPORATION
    Inventors: Junichi Semura, Shigeru Kawano, Masashi Higashiyama
  • Patent number: 9027720
    Abstract: A vibration damping mechanism allows increase of an absorption amount of vibration energy, with less possibilities of increase in the manufacture cost of a vibration damping weight and of reduction in the strength of a shaft section. Within a cylindrical hollow portion formed inside the shaft section, there are accommodated a plurality of weight members divided from each other along the circumferential direction about the axis of the hollow portion. An urging member is provided for urging the weight members toward the axis such that dividing faces of adjacent weight members are brought into surface contact with each other.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 12, 2015
    Assignee: Daishowa Seiki Kabushiki Kaisha
    Inventor: Tatsuya Ogata
  • Patent number: 8991573
    Abstract: A damper having an elastic body formed from a cross-linking product of an EPDM composition, which comprises (a) 100 parts by weight of at least one kind of EPDM, whose propylene content in sum total of ethylene and propylene in the copolymerization rubber is 35-50 wt. %, the EPDM having a Mooney viscosity (ML100) of not less than 40, (b) 5-50 parts by weight of ?-olefin oligomer, which is a polymer of ?-olefin represented by the general formula, CH2CHR, where R is an alkyl group having 3-12 carbon atoms, with a number average molecular weight Mn of 300-1,400 and (c) 1-10 parts by weight of an organic peroxide cross-linking agent.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: March 31, 2015
    Assignees: NOK Corporation, Honda Motor Co., Ltd.
    Inventors: Makoto Sanpei, Motoyuki Sunaoka, Shinji Yamada, Nobuyoshi Takamatsu
  • Patent number: 8978849
    Abstract: The present invention relates to a damping and dissipation device (10) which can be used for limiting disturbances transmitted between two bodies, generated by forcing elements of a dynamic, seismic nature and by wave-motion in structures in general, which comprises two end elements (18, 14, 32) each destined for being respectively connected to one of the two bodies, the device (10) also comprising at least one disk (11) made of an elastomeric material and at least one elastic element (12) with a variable load, coaxially arranged along an axis A, the elastic element (12) with a variable load having an initial pre-compression degree and is characterized in that at least one of the end elements (18) is connected to the device (10) through a sliding coupling with a sliding direction within a plane tilted with respect to the axis (A), preferably by at least 60°.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 17, 2015
    Assignee: Saipem S.p.A.
    Inventor: Paolo Minola
  • Patent number: 8960390
    Abstract: Provided is a vehicle-mounted active vibration reducing device wherein vibrations in a plurality of directions are reduced by a single dynamic damper. Since an actuator is attached so as to be supported by an elastic member attached to a bracket, the actuator can be used as a mass of a dynamic damper. The moving directions of the actuator are the forward and rearward directions, and are different from the moving directions of the dynamic damper using the actuator as a mass, i.e., the upward and downward directions. Accordingly, vibrations can be controlled in the forward and rearward directions which correspond to the moving directions of the actuator as well as the upward and downward directions which correspond to the moving directions of the dynamic damper.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: February 24, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasunori Kobayashi, Toshio Inoue
  • Patent number: 8944225
    Abstract: A structure for absorbing energy from impacts thereon, the structure being plastically deformable by an impact, with, if appropriate, the possibility that it is at least to some extent disrupted. The structure can include a) ribs for reinforcement, the ribs arranged with respect to one another at an angle with respect to the axial direction such that on failure of a rib a force acting on the structure is immediately absorbed axially by another rib, b) ribs running axially, the ribs being in essence corrugated or of zigzag shape, c) at least one rib running axially in a first plane and connected to at least two ribs running axially in a second plane rotated with respect to the first plane. The structure includes, in the direction of impact, at least two layers, each of which has different compressibility properties and different failure properties.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Andreas Wuest, Stefan Glaser, Daniel Fertig, Torsten Hensel, Uwe Gleiter
  • Patent number: 8926282
    Abstract: By providing a tube of deformable material which can be located within a hollow cavity of a blade it is possible to provide an element which through friction engagement can absorb vibration energy and therefore damp vibration in a hollow blade. The tube incorporates a number of cuts and/or grooves in an appropriate pattern in order to define a deformation profile once the tube is expanded in location. The tube is secured in position internally upon an expandable element which is typically an inflatable device. Once in position the tube is retained in its expanded deformable profile and the engagement between the tube and the hollow cavity wall surface results in energy absorption through vibration episodes. It is possible to provide a tube formed from a shape memory alloy which will expand in location to engage the hollow cavity wall surfaces for energy absorption during vibration episodes.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: January 6, 2015
    Assignee: Rolls-Royce plc
    Inventor: David Miller
  • Patent number: 8919506
    Abstract: The present disclosure relates to a vibration absorber for a drive train of a motor vehicle, including an internal carrier which can be rotated around a rotation axis, a mass ring which is coaxial to the internal carrier and which is arranged at a radial distance from the internal carrier, and a plurality of spring elements which connect the internal carrier and the mass ring to each other. The mass ring has at least one radial profile formation on the inner circumferential surface thereof to provide sliding support in the circumferential direction and is provided with an elastomeric damping layer arranged between the internal carrier and the mass ring, the layer being designed such that the mass ring slides at least in the region of the at least one radial profile formation thereof in the circumferential direction on the internal carrier during a relative rotation.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: December 30, 2014
    Assignee: SGF Sueddeutsche Gelenkscheibenfabrik GmbH & Co. KG
    Inventors: Johann Loew, Franz Kobus
  • Patent number: 8899392
    Abstract: A damper for decreasing a piping vibration capable of enhancing the efficiency in decreasing the piping vibration and adjusting the weight of a weight portion according to the type of the compressor and the shape of the pipe applied to the compressor by separating a fixed portion from a weight portion such that the fixed portion makes a direct contact with a pipe and the weight portion has an interval from the pipe without making a direct contact with the pipe, in which the damper installed on the pipe to decrease the vibration includes a fixation part provided with a coupling hole formed therein to be coupled to the pipe, and coupled and fixed to the pipe such that the coupling hole makes contact with an outer circumferential surface of the pipe, and a weight part connected to the fixation part.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mun Sub Kim, Hyun Wuk Kang, Jin Yong Mo, Yong Jae Song, Cheon Seok Yoon
  • Patent number: 8888037
    Abstract: An antivibration suspension device (10) comprising at least one tie bar (15) hinged via a bottom end (17) to suspension means (20), the suspension means (20) having a lever (25) extending from a distal end (26) supporting at least one flyweight (30) to a proximal end (27) having a first hinge (35) to a carrier structure (2), a tie bar (15) being hinged via a second hinge (40) to the lever (25). The device includes torsion return means (45) having a rotary actuator (46) with an outlet shaft (47) secured to said lever (25) to generate torque on said lever (25), said device having a computer (50) controlling said actuator (46) to adapt torsion stiffness of the lever (25) to flight conditions.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: November 18, 2014
    Assignee: Airbus Helicopters
    Inventors: Mathieu Pula, Thibault Galat-Camerini
  • Patent number: 8839916
    Abstract: A control method for a parking release apparatus of a shift-by-wire shifting device can improve the commercial value of a vehicle by improving safety of the vehicle and preventing robbery, by interfering with or preventing an attempt of abnormally and manually releasing a parking state of the vehicle when there is no problem in the electric system of the vehicle, using a part provided to be manually operated in the parking release apparatus such that a P-stage state and an N-stage state can be manually switched when a problem, such as discharge, occurs in the electric system, in the vehicle equipped with a shift by wire apparatus.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: September 23, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hangil Park, Changhyun Lee
  • Patent number: 8839900
    Abstract: A structure of a roll-rod for a subframe filled with a hydro liquid therein, may include a bracket bar, an inner pipe including a cylindrical pipe and a supporting plate joined with the cylindrical pipe, an endplate joined to the cylindrical pipe, an outer pipe enclosing the inner pipe between the bracket bar and the endplate and including an extension part, where the supporting plate may be disposed with a gap in the extension part having a curved shape, an insulator forming a front liquid chamber and a rear liquid chamber with the supporting plate to receive the hydro-liquid therein, and a housing, wherein the supporting plate may move relative to the outer pipe such that the gap varies while the insulator is elastically transformed according to movement of the bracket bar and the endplate.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: September 23, 2014
    Assignee: Hyundai Motor Company
    Inventor: Seung-Won Kim
  • Patent number: 8807305
    Abstract: A system for absorbing vibration in a rotary member having a predetermined rotary speed of the present invention has a selectively moveable mass and a positioning mechanism. The mass is in communication with the rotary member having a predetermined position. The positioning mechanism exerts a force on the mass at least when the rotary member operates below the predetermined rotary speed. The force exerted by the positioning mechanism orients the mass at the predetermined position when the rotary member operates below the predetermined rotary speed.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: August 19, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventors: Paul G. Otanez, Shushan Bai, Vijay A. Neelakantan
  • Patent number: 8800736
    Abstract: Particular embodiments relate generally to vibration isolation systems and tuned mass dampers. In one embodiment, a vibration isolation system may include a supporting base, an isolated mass, at least one air mount, a control valve, a compressed air supply, and a supervisory controller. The air mount is positioned between the isolated mass and the supporting base. The control valve is pneumatically coupled to the air mount, the compressed air supply and the atmosphere, and is operable to adjust a flow of air to and from the air mount. The supervisory controller receives a mass relative height signal, a mass relative velocity signal, and a mass relative acceleration feedback signal corresponding to a relative acceleration of the isolated mass or a pressure of the air mount.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: August 12, 2014
    Assignee: Design, Imaging & Control, Inc.
    Inventor: Ahmad Reza Kashani
  • Publication number: 20140196999
    Abstract: A temperature-compensating damping element, which is suitable for the temperature-independent reduction of vibrations, which has a fixed, non-elastic outer part and a fixed, non-elastic inner part, which is either inserted fully or partly into a mating cut-out or opening of the outer part. The outer and inner parts have contact surfaces which are connected to one another by an elastic layer which comprises an elastomer material and which is, or can be, pre-tensioned with respect to a desired frequency by a tensioning element. The elastic layer which is responsible for the vibration damping is directly connected at one or more points to an additional elastic volume. The additional elastic volume is a multiple of the volume of the elastic layer, and has the effect that the excitation frequency of the damping element changes in the case of a temperature change within a temperature range.
    Type: Application
    Filed: July 10, 2012
    Publication date: July 17, 2014
    Applicant: ESM ENERGIE-UND SCHWINGUNGSTECHNIK MITSCH GMBH
    Inventors: Franz Mitsch, Mathias Dorsam
  • Patent number: 8776967
    Abstract: The present invention relates to a wind turbine tower suspension arrangement comprising magnetic attachment means adapted to magnetically secure the suspension arrangement to an inner surface portion of the wind turbine tower. The suspension arrangement further comprises guiding means adapted to guide an element suspended in a substantially longitudinal direction of the wind turbine tower, the guiding means being connected to the magnetic attachments means. Moreover, the present invention relates to the method for applying a wind turbine tower suspension arrangement.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: July 15, 2014
    Assignee: Vestas Wind Systems A/S
    Inventor: Børge Øllgaard
  • Patent number: 8714324
    Abstract: A dynamic vibration absorber (1) includes: a weight (2); a frame body (3) which surrounds the weight (2); a total of four pairs of vertically mounted U-shaped leaf springs (4, 5, 6 and 7) which are interposed between the frame body (3) and the weight (2) so as to hold the weight (2) with respect to the frame body (3) movably with respect to all directions in a horizontal plane and immovably in a vertical direction (V); and a damping mechanism 8 for damping the vibration of the weight (2) in the horizontal plane.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: May 6, 2014
    Assignee: Oiles Corporation
    Inventors: Ikuo Shimoda, Yukito Matsumoto, Osamu Hasegawa