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1. 发明授权

US11179750B2 Vibration piston arrangement in the squeezing cylinder of a track tamper 有权
公开(公告)号：US11179750B2
公开(公告)日：2021-11-23
申请号：US15767557
申请日：2016-10-24
申请人： PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
发明人： Thomas Philipp
IPC分类号： B06B1/18 , E01B27/17 , E01B27/16 , F15B21/14
摘要： For tamping a track, tamping tines are squeezed towards one another in pairs by a squeezing cylinder. A vibration is superimposed on a linear lift motion of a squeezing piston movable in the squeezing cylinder. The vibration is generated by a vibration piston which is arranged in the squeezing cylinder and which is movable independently of the squeezing piston.

2. 发明授权

US11098749B2 Vacuum suction cup and vibrator 有权
公开(公告)号：US11098749B2
公开(公告)日：2021-08-24
申请号：US16927296
申请日：2020-07-13
申请人： Vibco, Inc.
发明人： Theodore S. Wadensten
IPC分类号： F16B47/00 , B06B1/18
摘要： A vacuum suction cup assembly, including a vacuum cup, a vibration assembly, and a vibration shock absorber. The vacuum cup includes a skirt and is configured to be pressurized when placed against a surface to retain the vacuum cup against the surface in any orientation. The vibration assembly includes a vibrator; a vibration transfer plate on which the vibrator is mounted; and at least one vibration transfer blocks disposed on an opposite face of the vibration transfer plate from the vibrator, wherein the at least one vibration transfer blocks is configured and arranged to transmit a majority of the vibration forces from the vibrator to the surface. The vibration shock absorber is disposed between the vibration assembly and the vacuum cup.

3. 发明授权

US10968700B1 Ball transfer mechanism with polycrystalline diamond bearing support 有权
公开(公告)号：US10968700B1
公开(公告)日：2021-04-06
申请号：US15726506
申请日：2017-10-06
申请人： National Technology & Engineering Solutions of Sandia, LLC
发明人： David W. Raymond
IPC分类号： E21B4/10 , E21B17/07 , E21B19/086 , E21B21/01 , E21B4/02 , B06B1/18 , F01B1/06
摘要： A ball transfer mechanism for a harmonic drive and linear piston motor is disclosed. The ball transfer mechanism includes a spherical ball and a cylindrical seat portion. The seat portion defines a hemispherical shaped recess with a contour for receiving the ball. The ball transfer mechanism is in an exterior wall of a housing for converting rotary motion to linear motion, driving a linear piston motor. The harmonic drive drives a rotor of the linear piston motor. The harmonic drive includes a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion. Transfer mechanisms disposed along a housing wall of the linear piston motor engage the coupler portion. The coupler portion includes harmonic cam grooves for receiving spherical balls in the ball transfer mechanism that drives rotational motion in the rotor in response to axially linear movement of the piston assembly.

4. 发明申请

US20200379562A1 HAPTIC ACTUATOR ASSEMBLY HAVING A FLUID RESERVOIR 审中-公开
公开(公告)号：US20200379562A1
公开(公告)日：2020-12-03
申请号：US16424653
申请日：2019-05-29
申请人： Immersion Corporation
发明人： Simon FOREST , Vahid KHOSHKAVA
IPC分类号： G06F3/01 , B06B1/18
摘要： A haptic actuator assembly comprising a fluid reservoir and an actuator is presented. The fluid reservoir may hold a substantially non-compressible fluid, and has a first layer and a second layer that is less rigid than the first layer. The first layer has a first resonance frequency, and the second layer has a lower resonance frequency. The actuator is configured to cause a first vibration in which the first layer vibrates at the first resonance frequency and provides a first amount of displacement or acceleration. The fluid reservoir is configured to transfer a force of the first vibration from the first layer to the second layer to cause a second vibration in which the second layer vibrates at the lower resonance frequency and provides a second, higher amount of displacement or acceleration.

5. 发明申请

US20200316646A1 SINGLE-MASS, ONE-DIMENSIONAL RESONANT DRIVER 审中-公开
公开(公告)号：US20200316646A1
公开(公告)日：2020-10-08
申请号：US16841358
申请日：2020-04-06
申请人： Resonance Technology International Inc.
发明人： Matthew C. Janes , Douglas Dane Reelie , Stewart G. Page
IPC分类号： B06B1/18 , F15B15/14
摘要： An efficiency-enhanced resonant system is provided with a backing mass connected to a linear vibrator, a parasitic mass connected to the linear vibrator, a positioning spring, a connecting device, and external biasing springs. The linear vibrator provides vibrating force to the parasitic mass which is connected to the connecting device, grasping a working implement. The use of separate positioning spring and external biasing springs accommodates a tuned system that balances the reduction in backing mass movement, avoids backing mass resonance within the working range of frequencies, and maintains a minimized linear vibrator stroke within the optimal range for one-dimensional implements within desired frequency ranges. The linear vibrator provides vibration that manifests as a frequency range of the natural frequency of the combined assembly of the parasitic mass, positioning spring, external biasing springs, connecting device, and implement, so that the resonant system efficiently performs work with minimized wasted energy.

6. 发明授权

US10583463B2 Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium 有权
公开(公告)号：US10583463B2
公开(公告)日：2020-03-10
申请号：US16162641
申请日：2018-10-17
申请人： AT&T Intellectual Property I, L.P.
发明人： Mitchell Harvey Fuchs , Robert Bennett , Irwin Gerszberg , Kenneth C. Reichmann
IPC分类号： A61B18/18 , B06B1/18 , B06B3/00 , H04B3/54 , H04Q9/00 , G08C23/06 , H04B3/52 , G01R31/00
摘要： Aspects of the subject disclosure may include, for example, a system for detecting an accumulation of a liquid on a transmission medium that may interfere with the propagation of guided electromagnetic waves on a surface of the transmission medium, and directing a device to remove at least a portion of the liquid accumulating on the surface of the transmission medium to mitigate the interference. Other embodiments are disclosed.

7. 发明申请

US20190323194A1 CLAMPING ADAPTER AND METHODS FOR SONIC PILE DRIVING 审中-公开
公开(公告)号：US20190323194A1
公开(公告)日：2019-10-24
申请号：US16349721
申请日：2018-01-05
申请人： Terra Sonic International, LLC
发明人： Edwin Sprout , James Savinkoff
IPC分类号： E02D13/10 , B06B3/00 , B06B1/18 , E02D7/18
摘要： A pile driving adapter includes an upper attachment portion for selectively attaching the adapter to a drill head and a lower housing portion including at least a first outer wall. The pile driving adapter further includes at least one actuator including a first portion slidably mounted to the lower housing portion and a second portion configured to expand from the first portion in a direction perpendicular to the first outer wall. The first portion may be slidably mounted to the lower housing portion via a sliding mount, and the lower housing portion may include at least one elongate slot for receiving at least a portion of the sliding mount. The pile driving adapter advantageously couples the drill head and the member to be driven so as to reliably transfer sonic energy.

8. 发明授权

US10421101B2 Tamping unit for tamping sleepers of a track 有权
公开(公告)号：US10421101B2
公开(公告)日：2019-09-24
申请号：US15543128
申请日：2016-01-30
申请人： PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
发明人： Florian Hoefler , Gerhard Hoellinger
IPC分类号： B06B1/18 , E01B27/16
摘要： A tamping unit includes tamping tines and a squeezing drive for squeezing the tamping tines. A vibration exciter has an outer cylinder and an inner cylinder. The inner cylinder is disposed coaxially to a cylinder axis and is mounted for displacement in an axial direction along sliding or gliding surfaces in the outer cylinder. A ring-shaped recess is provided between the two sliding or gliding surfaces which are spaced from one another in the axial direction. A spacer ring, which subdivides the ring-shaped recess into two fluid channels, is connected selectively to the inner or outer cylinder. The fluid channels are spaced from one another relative to the axial direction. The two fluid channels can be hydraulically actuated alternatingly by feed lines for vibration excitation.

9. 发明授权

US10391520B2 Pressure wave generator with a sabot launched piston 有权
公开(公告)号：US10391520B2
公开(公告)日：2019-08-27
申请号：US15211476
申请日：2016-07-15
申请人： General Fusion Inc.
发明人： Lon William McIlwraith , Michel G Laberge
IPC分类号： B06B1/18 , F04D35/00 , F42D3/06 , G01V1/135
摘要： Examples of a pressure wave generator configured to generate high energy pressure waves in a medium are disclosed. The pressure wave generator can include a sabot carrying a piston. The sabot can further comprise a locking means to lock the piston in a fixed position when the locking means are activated. When the locking means are in a deactivated position, the piston can be released and can move at least partially away from the sabot. The sabot carrying the piston can be disposed within an inner bore of a housing of the pressure wave generator and can move within the inner bore of the housing from its first end toward its second end along a longitudinal axis of the bore. A transducer can be accommodated in the second end of the housing. The transducer can be coupled to the medium and can convert a portion of the kinetic energy of the piston into a pressure wave in the medium upon impact of the piston with the transducer. The sabot carrying the piston can be accelerated by applying a motive force to the sabot. Once accelerated within the inner bore of the housing the sabot can be decelerated by applying a restraining force to the sabot while the piston can be released at least partially from the sabot to continue to move toward the transducer until it impacts the transducer. Examples of methods of operating the pressure wave generator are disclosed.

10. 发明授权

US10213808B2 Shaking unit and method for the pneumatic excitation of a shaking unit 有权
公开(公告)号：US10213808B2
公开(公告)日：2019-02-26
申请号：US14642060
申请日：2015-03-09
申请人： Voith Patent GmbH
发明人： Jürgen Banning
IPC分类号： B06B1/12 , D21F1/18 , F16F7/10 , B06B1/18 , G01M7/02 , G01M7/04 , G01M7/06 , B06B1/14
摘要： 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.

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