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70 results about "Rotational oscillation" patented technology
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Rotational motion is when something is moving in a circle - like if I took a ball on a string and swung it around my head. Oscillating motion is when something is going back and forth and back and forth.
Powered toothbrush
InactiveUS6892412B2Improve cleaning efficiencyEasy to cleanCarpet cleanersKitchenware cleanersBristleMechanical engineering
Owner:COLGATE PALMOLIVE CO
Drilling string torsional energy control assembly and method
InactiveUS20040238219A1Fast penetrationProlong lifeDrilling rodsDirectional drillingEnergy controlBrief periods
The present invention provides a torsional energy control assembly and method for eliminating slip-stick and / or drill bit oscillations comprising axial and / or rotational oscillations. In one preferred embodiment, the assembly permits slippage between an upper portion of the drilling string and a lower portion of a drill string. The rotational control assembly may be installed at any desired position in the drill string. The rotational control assembly could also be utilized as a component of other drilling mechanisms such as a downhole drilling motor. The rotational control permits slippage while drilling for a selected time or selected rotational distance or other criteria to thereby release torsional energy in the drilling string which otherwise may produce damaging slip-stick torsional oscillations such as slip-stick. The rotational control assembly may, in one embodiment, comprise an on-off clutch whereby torque is either substantially completely transmitted or substantially not transmitted through the assembly for brief periods.
Owner:STRATALOC TECH PROD +1
Compliantly mounted motor assembly utilizing dual levels of vibration isolation
A dual level, vibration isolation system is provided that isolates a vehicle in general, and the vehicle's passenger cabin in particular, from the vibrations generated by the vehicle's motor during normal operation. The first isolation level uses a first plurality of isolation bushings to mount the motor assembly to a first portion of the battery pack. The second isolation level uses a second plurality of isolation bushings to mount the first portion of the battery pack either directly to the vehicle or indirectly to the vehicle via a second portion of the battery pack. In addition to providing two levels of vibration isolation, this compliant mounting scheme allows the mass of the battery pack to absorb and damp out undesirable rotational oscillations caused by the motor, especially when the motor is undergoing strong acceleration or deceleration.
Owner:ATIEVA USA INC
Drilling string torsional energy control assembly and method
InactiveUS6997271B2Faster drilling ROP (rate of penetration)Prolong lifeDrilling rodsDirectional drillingEnergy controlBrief periods
The present invention provides a torsional energy control assembly and method for eliminating slip-stick and / or drill bit oscillations comprising axial and / or rotational oscillations. In one preferred embodiment, the assembly permits slippage between an upper portion of the drilling string and a lower portion of a drill string. The rotational control assembly may be installed at any desired position in the drill string. The rotational control assembly could also be utilized as a component of other drilling mechanisms such as a downhole drilling motor. The rotational control permits slippage while drilling for a selected time or selected rotational distance or other criteria to thereby release torsional energy in the drilling string which otherwise may produce damaging slip-stick torsional oscillations such as slip-stick. The rotational control assembly may, in one embodiment, comprise an on-off clutch whereby torque is either substantially completely transmitted or substantially not transmitted through the assembly for brief periods.
Owner:STRATALOC TECH PROD +1
Cutting device with spiral blades
Cutting device for cutting objects, such as leaves, twigs, grass-like plants, fibers, hairs, and the like, having two sets of internally coupled blades, with at least one set of blades being static or dynamically formed whole spiral shape, and the blades having relative rotation therebetween for rotation, oscillation along the axes, rotational oscillation around the axes, or combinations of these motions, to create cutting actions such as shearing, sawing, or a combination of shearing and sawing, with an integrated function of mulching the cuttings generated by the cutting actions.
Owner:JIANG YUNING
Apparatus And Method For A High Speed Rotation-To-Rotation Oscillation Converter For Surgical Use
InactiveUS20080234716A1Momentum is smallMinimize momentumGearingSurgerySurgical operationAngular momentum
A converter for use in a high speed rotationally oscillating surgical burring device comprises an output shaft, and a rotationally oscillating secondary drive rotor coupled to the output shaft. The secondary drive rotor is arranged and configured with a size and mass to minimize its angular momentum. A unidirectionally rotating primary drive rotor is provided. A linearly reciprocating transmission converts unidirectional rotation to bidirectional rotational oscillation coupling the primary and secondary drive rotors. The transmission is arranged and configured with a size and mass to minimize its linear momentum. An input shaft is coupled to the rotating primary drive rotor to which a unidirectional rotational force is applied.
Owner:KIESTER DOUGLAS P
Micromechanical rate-of-rotation sensor
InactiveCN101855516AReduce moment of inertiaCompact and robust implementationTurn-sensitive devicesClassical mechanicsRotation sensor
Owner:MAXIM INTEGRATED PROD GMBH
Photobioreactor comprising rotationally oscillating light sources
InactiveUS20120282677A1Bioreactor/fermenter combinationsBiological substance pretreatmentsChemical physicsLight guide
The invention relates to a photobioreactor having illumination by light sources (light guides, LEDs) moved in rotational oscillation, and optionally membrane surfaces for gas transport moved in combination in rotational oscillation.Advantages are, inter alia, light input which is spatially homogeneous on average over time and can be adapted by means of intensity and oscillation to the culture and its density, as well as low-shear power input and optionally low-shear bubble free gasification and degassing.
Owner:BAYER INTELLECTUAL PROPERTY GMBH
Micromechanical rate-of-rotation sensor
ActiveUS20100199764A1Improve sensor sensitivityCompensation effectAcceleration measurement using interia forcesSpeed measurement using gyroscopic effectsEngineeringRotation sensor
A micromechanical rate-of-rotation sensor for detecting a rate of rotation about a sense axis includes a substrate, a detection unit, means for generating a rotational oscillation of the detection unit about a drive axis which is orthogonal to the sense axis, and a central suspension means rotatably coupling the detection unit to the substrate in a fulcrum of the detection unit. The central suspension means is configured to permit the detection unit to perform a detection movement about a detection axis orthogonal to the sense axis in the form of a rotational oscillation about the central suspension means. The sensor also includes at least two second suspension means coupling the detection unit and the substrate for providing a response behavior specific to rotation about at least one of the drive axis and the detection axis.
Owner:HANKING ELECTRONICS LTD
Angular rate sensor featuring mechanically decoupled oscillation modes
InactiveUS7520169B2Acceleration measurement using interia forcesPulse automatic controlAngular rate sensorCentrifugal force
An angular rate sensor for detecting a rotation includes a substrate, at least one oscillating element that can be excited so as to oscillate rotationally or radially, an anchor structure, one or several detecting elements, one or several joining elements that connect the detecting element / s to the oscillating element, a mechanism for exciting the oscillating element, and a device for detecting a radial or rotational oscillation of the detecting element / s. Each of the detecting elements can oscillate radially on the same plane on which rotational oscillation of the oscillating element occurs, or vice versa, while the centrifugal force Fz caused by the rotational oscillation will not cause any significant radial movement of the detecting element / s or the oscillating elements. Also disclosed are different methods for operating said sensor.
Owner:LEONHARD OLGEMOELLER FRICKE +1
Micromechanical rate-of-rotation sensor
ActiveUS8353212B2Addressing Insufficient SensitivityCounteract riskAcceleration measurement using interia forcesSpeed measurement using gyroscopic effectsEngineeringRotation sensor
Owner:HANKING ELECTRONICS LTD
Piezoelectric rotational MEMS resonator
ActiveUS20180342667A1Impedence networksSpeed measurement using gyroscopic effectsElectricityInertial mass
This disclosure reveals a resonator where at least one suspended inertial mass is driven into rotational oscillation by a piezoelectric drive transducer, or where the rotational motion of at least one suspended inertial mass is sensed by a piezoelectric sense transducer. The disclosure is based on the idea of suspending the inertial mass with a one-sided suspender arrangement, where only one suspender is attached to each anchor point, and on the optimal positioning of the suspender in relation to the effective center of gravity of the resonator. The resonator may be employed in a resonator system, a clock oscillator or a gyroscope.
Owner:MURATA MFG CO LTD
Drilling string torsional energy control assembly and method
The present invention provides a torsional energy control assembly and method for eliminating slip-stick and / or drill bit oscillations comprising axial and / or rotational oscillations. In one preferred embodiment, the assembly permits slippage between an upper portion of the drilling string and a lower portion of a drill string. The rotational control assembly may be installed at any desired position in the drill string. The rotational control assembly could also be utilized as a component of other drilling mechanisms such as a downhole drilling motor. The rotational control permits slippage while drilling for a selected time or selected rotational distance or other criteria to thereby release torsional energy in the drilling string which otherwise may produce damaging slip-stick torsional oscillations such as slip-stick. The rotational control assembly may, in one embodiment, comprise an on-off clutch whereby torque is either substantially completely transmitted or substantially not transmitted through the assembly for brief periods.
Owner:STRATALOC TECH PROD
Measurement tool and method of use
ActiveUS20090193889A1Improve efficiencyIndirect flow property measurementBorehole/well accessoriesEngineeringOil and natural gas
This invention relates to a measurement tool, and in particular to a measurement tool for use in determining the density and / or viscosity of a stationary or moving fluid. The measurement tool has been designed for use in borehole applications during the location and exploitation of oil and gas reserves. The measurement tool has a resilient pipe with a substantially uniform cross-section along its length, and the fluid is located within the pipe. The pipe carries an exciter which is connected to a signal generator, the exciter and signal generator being adapted to impart transverse and / or rotational oscillations to the pipe. Measuring the frequency of the oscillations can be used to determine the density and / or the viscosity of the fluid within the pipe.
Owner:WEATHERFORD TECH HLDG LLC
Powered toothbrush
InactiveUS20080313830A1Improve cleaning efficiencyEasy to cleanCarpet cleanersKitchenware cleanersBristleMechanical engineering
Owner:COLGATE PALMOLIVE CO
Produce corer
InactiveUS20050066824A1Minimal effortEasy to removeKitchen fruit stoningFruit coringLeafy vegetablesChisel
An apparatus for cutting and removing the cores of produce such as fruit or leafy vegetables, particularly cabbage or lettuce, prior to the processing of the vegetable. The apparatus has a coring tube, a shaft, and a chisel, where the coring tube is attached to the distal end of the shaft, and the proximal end of the shaft is inserted into the pneumatic chisel. The coring tube has a cylindrical coring blade at its distal end, which is inserted into the fruit or vegetable to be cored using a rapid linear and / or rotational oscillation motion provided by an electric or pneumatic driver. Cut portions of the fruit or vegetable can be removed from the proximal end of the coring tube.
Owner:FRESH EXPRESS
Optical resonance scanner
ActiveUS20160178894A1Improve prevention efficiencyMinimize occurrenceOptical elementsSuperimpositionEngineering
An optical resonance scanner has a spring-elastic bending element (10) excitable to effect rotational oscillations about a longitudinal axis (A-A) using a stationary magnet (9) and a stationary drive coil (5) that is wound around a pole shoe (20). The pole shoe (20) is magnetically coupled to the magnet (9) and has two mutually opposite free ends (21, 22) between which the bending element (10) is arranged symmetrically so that a magnetic flux can be transferred substantially perpendicularly to the longitudinal axis (A-A). In superimposition of the magnet- and coil-induced magnetic fluxes the magnet (9) and a first half (23) of the pole shoe (20) form a first magnetic circuit (30), and the magnet (9) and a second half (24) of the pole shoe (20) form a second magnetic circuit (31), which run in opposite senses with respect to one another in a plane perpendicularly to the longitudinal axis (A-A) through a magnetizable section (6) of the bending element (10).
Owner:FEMOTECH
Compliantly Mounted Motor Assembly Utilizing Dual Levels of Vibration Isolation
A dual level, vibration isolation system is provided that isolates a vehicle in general, and the vehicle's passenger cabin in particular, from the vibrations generated by the vehicle's motor during normal operation. The first isolation level uses a first plurality of isolation bushings to mount the motor assembly to a first portion of the battery pack. The second isolation level uses a second plurality of isolation bushings to mount the first portion of the battery pack directly to the vehicle. In addition to providing two levels of vibration isolation, this compliant mounting scheme allows the mass of the battery pack to absorb and damp out undesirable rotational oscillations caused by the motor, especially when the motor is undergoing strong acceleration or deceleration.
Owner:ATIEVA USA INC
Methods and devices for soft tissue dissection
Methods and devices for blunt dissection include a drive mechanism comprising an elongate rotary drive train having a first proximal end connected to a mounting base for attaching to a handle or a surgical robot and a second distal end. The drive mechanism comprises a differential dissecting member (DDM) configured to be rotatably attached to the second distal end. The drive mechanism further comprises a mechanism configured to mechanically rotate the DDM about a substantially transverse axis of member rotational oscillation, thereby causing at least one tissue engaging surface to move in at least one direction against complex tissue and selectively engage the complex tissue such that when the DDM is pressed into the complex tissue, the at least one tissue engaging surface moves across the complex tissue and disrupts at least one soft tissue in the complex tissue, but does not disrupt firm tissue in the complex tissue.
Owner:PHYSCIENT
Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method
InactiveUS8152504B2Rotary/oscillating piston combinations for elastic fluidsInternal combustion piston enginesMechanical engineeringSpherical form
A positive displacement rotary machine with a body having an internal spherical working surface divided into bypass and propulsion areas, a rotor with a working rotational surface, a ring working cavity formed by the working surfaces of the body and rotor, and a C-shaped separator mounted in part of the cavity at an angle to a plane of the rotor rotation. The cavity is partitioned by the separator at the bypass area, and the working medium openings are located from opposite sides of the separator. The working surface of the rotor has at least one slot. In each slot is mounted a piston capable of sealing the working cavity, and performing rotational oscillations in a slot plane. The piston is at least in the form of a part of a disk and has at least one through-cutout for the separator passage, and can seal the through-cutout at the propulsion area.
Owner:DIDIN ALEXANDR VLADIMIROVICH +1
Micromechanical coriolis rate of rotation sensor
ActiveUS20130269469A1Accurate measurementSystem is substantially more stableMechanical apparatusSpeed measurement using gyroscopic effectsRotation velocityEngineering
A micromechanical Coriolis rate of rotation sensor for detecting a rate of rotation, comprising a substrate, a measurement axis (X-axis), a detection axis (Y-axis), and a drive axis (Z-axis), each disposed orthogonally to each other and a first and a second driving mass (2) disposed in an X-Y plane parallel to the substrate. Each driving mass (2) being rotatably connected to the substrate by means of a central suspension. The two central suspensions being disposed along the Y-axis. Drive means are used for generating a rotational oscillation of the driving masses (2) about the drive axis (Z) at each central suspension. At least one elastic connecting element (5) is disposed on each of the driving masses (2) on both sides of the Y-axis and spaced apart from the same for connecting and oscillating the two driving masses (2) in a mutually tuned manner.
Owner:HANKING ELECTRONICS LTD
Impact wrench
The invention relates to an impact wrench having a drive motor for driving a drive shaft (10) and an output shaft (38) that can be coupled to a tool holder, and having an impact mechanism, the impact mechanism comprising an anvil (36) that has first impact cheeks (34) and that is coupled to the output shaft (38), and comprising a hammer, which is guided on the drive shaft (10), the hammer having second impact cheeks (24), which engage with the first impact cheeks (34) for the purpose of rotary transmission, wherein the hammer comprises a rotating mass (22) and a control part (20), the controlpart (20) carrying the second impact cheeks (24) and rotating with the drive shaft (10) in the case of non-impact and, in the case of impact, executing an axial and, preferably, additional, rotational oscillation relative to the drive shaft (10), the control part (20) transmitting the rotation of the drive shaft (10) to the rotating mass (22) and being movably guided in the axial direction in therotating mass (22) for the purpose of realizing the impact function, and the rotating mass (22) not executing any axial movement.
Owner:麦太保有限公司
Positive-displacement rotary machine
InactiveUS20090185937A1Improve featuresHigh trafficRotary/oscillating piston combinations for elastic fluidsInternal combustion piston enginesEngineeringHigh pressure
The invention relates to rotary machines provided with nonparallel axes of a rotor and pistons. The inventive positive-displacement rotary machine comprises a body, the working surface of which is embodied in the form of a part of a segment of sphere, a rotor which is provided with a working surface of revolution and which is arranged in the body in such a way that it is rotatable, a ring-shaped concentric working cavity formed by the body and the rotor, a separator which is embodied in the form of a wobble plate, is fixedly arranged in the body and divides the working cavity into two parts. The working surface of the rotor is provided with at least one slot which is embodied along the geometrical axis of rotation thereof and in which a piston in the form of a part of disk is placed in such a way that it is enabled to perform rotational oscillations in the plane thereof. Each piston is provided with a sealable through-slot for the separator passage. At least one through passage, which makes it possible to position input and output ports on the opposite sides of the separator by mutually spacing them along the axis of the rotor, is embodied on one of the areas of the separator, thereby simplifying the combination of stages. Said inventions make it possible to increase the synchronising reliability of the working members of a spherical machine and to use it in a down-hole high-speed multistage high-pressure pump.
Owner:DIDIN ALEXANDR VLADIMIROVICH +1
Micromechanical structure
InactiveUS20140116134A1Great ruggednessHigh sensitivityAcceleration measurement using interia forcesSpeed measurement using gyroscopic effectsRotational axisClassical mechanics
Micromechanical structure, in particular a yaw rate sensor having a substrate including a main plane of extent for detecting a first yaw rate about a first direction perpendicular to the main plane, a second yaw rate about a second direction parallel to the main plane, and a third yaw rate about a third direction parallel to the main plane and perpendicular to the second direction, includes a rotational oscillating element driven to rotational oscillation about a rotational axis parallel to the first direction. The micromechanical structure includes a yaw rate sensor configuration for detecting the first yaw rate that is completely surrounded by the rotational oscillating element in a plane parallel to the main plane. The micromechanical structure includes at least one first connection of the yaw rate sensor configuration on the rotational oscillating element, and at least one second connection of the yaw rate sensor configuration on the substrate.
Owner:ROBERT BOSCH GMBH
Lubricant free, reduced mass, free-piston, stirling machine having reciprocating piston drivingly linked to rotary electromagnetic transducer moving in rotational oscillation
A free-piston Stirling machine drivingly coupled to at least one rotary electromagnetic transducer. At least one pulley is oriented in a plane of a reciprocating piston connecting rod. At least one motion translating drive link connects the connecting rod to the pulley by at least two straps so that the pulley moves in rotationally oscillating motion. The two straps extend along an arcuate surface of the pulley into connection to the piston rod at two spaced locations. The pulley is linked to a rotary electromagnetic transducer so that both move in rotationally oscillating motion. Preferably a piston spring resonates the piston at an operating frequency of the Stirling machine and a torsion spring resonates the pulley in rotational oscillation at the operating frequency of the Stirling machine.
Owner:GLOBAL COOLING
Piezoelectric rotational MEMS resonator
ActiveUS20180340955A1Acceleration measurement using interia forcesImpedence networksInertial massGyroscope
This disclosure reveals a resonator where at least one suspended inertial mass is driven into rotational oscillation by a piezoelectric drive transducer, or where the rotational motion of at least one suspended inertial mass is sensed by a piezoelectric sense transducer. The disclosure is based on the idea of attaching suspenders to the inertial mass with at least one flexure, which allows the end of the suspender which is attached to the inertial mass to rotate in relation to the inertial mass at this attachment point when the inertial mass is in motion. The resonator may be employed in a resonator system, a clock oscillator or a gyroscope.
Owner:MURATA MFG CO LTD
Micromechanical structure
ActiveCN103776437ASmall space requirementMinimized space requirementsTelevision system detailsImpedence networksRotational axisClassical mechanics
Micromechanical structure, in particular a yaw rate sensor having a substrate including a main plane of extent for detecting a first yaw rate about a first direction perpendicular to the main plane, a second yaw rate about a second direction parallel to the main plane, and a third yaw rate about a third direction parallel to the main plane and perpendicular to the second direction, includes a rotational oscillating element driven to perform rotational oscillation about a rotational axis parallel to the first direction. The micromechanical structure includes a yaw rate sensor configuration for detecting the first yaw rate that is completely surrounded by the rotational oscillating element in a plane parallel to the main plane. The micromechanical structure includes at least one first connection of the yaw rate sensor configuration on the rotational oscillating element, and at least one second connection of the yaw rate sensor configuration on the substrate.
Owner:ROBERT BOSCH GMBH
Rotary optical probe
InactiveCN102176854AInhibition lossSuppress reflection ghostingDiagnostics using spectroscopySurgeryRotational oscillationLight source
A probe (50) irradiates light upon an object to be measured and receives return light from the object to be measured. The probe (50) includes: an optical path (21) for transmitting the light from a light source (10); a mirror member (52) for reflecting the light transmitted by the optical path (21); and a rotational oscillation mechanism (56) for causing the rotational oscillation of the end portion of the optical path (21) and the mirror member (52) around the longitudinal axis of the optical path (21). The rotational oscillation mechanism (56) induces rotational oscillation within the limits of the torsional elasticity of the optical path (21). As a result of this configuration, it is possible to suppress light loss and ghosting due to reflections and obtain a highly-reliable rotary optical probe with a simple configuration.
Owner:KONICA MINOLTA OPTO
Inlet guide vane drive system with spring preload on mechanical linkage
A variable vane system includes a plurality of vanes each being pivotal about an axis. A mechanical linkage drives the plurality of vanes to rotate about the axis. The mechanical linkage includes a ring gear to rotate, and in turn drive the plurality of vanes. There is at least one rod to drive the ring gear to rotate. The rod is driven by a hydraulic servo motor. A spring bias force is provided in the mechanical linkage to resist either translational or rotational oscillation.
Owner:HAMILTON SUNDSTRAND CORP
Rotary oscillation cutting tool for a machine tool
ActiveCN103998193AAvoid vibrationReduce vibrationSawing apparatusMetal sawing toolsEngineeringMachine tool
A rotary oscillation cutting tool (1) for a machine tool has a circular-segment-shaped stem blade (2) with a working edge (4) and a holder part (3) for the holder on a shaft of the machine tool. The holder part (3) is for an improvement of rigidity next to the stem blade (2) provided with a reinforcing element (12) formed from one piece.
Owner:ROBERT BOSCH GMBH
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