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Class 73/460 - Dynamic (spinning)


Subclass of Class 73 - Measuring and testing
Definition: Subject matter for determination of rotor unbalance by spinning
No. of patents: 127
Last issue date: 05/29/2012


1        
NumberTitleIssue Date
8186215Method and system for determining non-uniformity characteristics of a vehicle tire and rim
A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured t...
05/29/2012
8082787Apparatus for measuring forces which are produced by an unbalance of a rotary member
Apparatus for measuring forces which are produced by an unbalance of a rotary member, the apparatus including a measuring shaft (2) which is supported in a rotary mounting (26) rotatably about its axis (23) and to which the rotary member (1
12/27/2011
8051709Method and apparatus for pre-spinning rotor forgings
A method and system for relieving forging induced residual stresses in a rotor forging balances a pre-spin machine with the forging mounted thereon at a first rotational speed and then pre-spins the forging with it mounted on the machine at a substantially greater s...
11/08/2011
8011243Method for correcting the eccentricity of a vehicle wheel in balancing machines or the like
The method for correcting the eccentricity of a vehicle wheel in balancing machines or the like, comprises: a reading phase for reading the radial eccentricity deviation of the rim of a wheel to be balanced and the radial eccentricity deviation of the tire of the wh...
09/06/2011
7882739Wheel balancer incorporating novel calibration technique
A wheel balancer utilizing a novel calibration technique in which the operator must only measure and enter one dimension of the tire. By requiring the operator to measure only one dimension of the tire, the probability of introducing measurement error into the syste...
02/08/2011
7882738Wheel balancer having laser-assisted weight placement system
A wheel balancer for balancing a wheel having a rim and tire. The wheel balancer comprises a chassis and a driven shaft extending away from the chassis for rotating the wheel. An A&D arm, pivotal and axially extendible with respect to the chassis, is also provided. ...
02/08/2011
7775108Balancing machine for vehicle wheels with analog to digital conversion and adjustable sampling frequency
The upgraded balancing machine for vehicle wheels comprise a supporting frame for gripping and rotation means for gripping and rotating a wheel to be balanced around a rotation axis, a first sensor for detecting the unbalance of the wheel with respect to the rotatio...
08/17/2010
7610808Method for balancing motor vehicle wheels
A method for balancing motor vehicle wheels, comprising mounting the wheel onto the rotating spindle of a balancing machine, using a probe of known type, selecting balancing planes and diameters, providing the data to the balancing machine, spinning the wheel, calcu...
11/03/2009
7594437Machine for balancing vehicle wheels
A machine for balancing vehicle wheels, such wheels including a rim with a pair of axially spaced, ring-shaped or annular, flanges, and a tire seated up on the rim. The machine includes a frame with motor driven devices for gripping the vehicle wheel to be balanced ...
09/29/2009
7458262Integral center plane balancing of a rotating electric device
Certain exemplary embodiments provide a rotating machine assembly comprising a rotor machine assembly including a shaft, a plurality of laminations shrink fit around the circumference of the shaft, and weights affixed therebetween the laminations for balancing the r...
12/02/2008
7430916Apparatus for detecting vibrations in a machine tool
Provided herein is an apparatus for detecting vibrations in a machine tool having a rotor portion (2) which is provided with tool members (5) and defines an axis of rotation (2a), the apparatus comprising a sensor assembly (3) whic...
10/07/2008
7377164Method of and apparatus for balancing a vehicle wheel
In a method and apparatus for balancing a vehicle wheel, the wheel when fixed to a main shaft of a balancing machine, after the implementation of a wheel unbalance measuring run, is stopped at a given rotational angular position for a balancing operation to be carri...
05/27/2008
7371042Method and apparatus for balancing gas turbine engines
A method, system, and balanced rotating assembly are provided for field balancing an assembly including a power turbine. The method, system and assembly includes coupling the power turbine to a load, identifying a first balancing plane that is aft of the power turbi...
05/13/2008
7328614Vehicle wheel balancer system
A method for providing a centering check for a rotating body mounted on a wheel balancer which is based on measuring at least one imbalance parameter or tire runout of the rotating body. The rotating body is mounted on a spindle of the wheel balancer and an imbalanc...
02/12/2008
7320248Method and apparatus for determining imbalance correction weights for a rotating body
A method for measuring the imbalance characteristics of a rotating body, and for determining if an application of imbalance correction weights is required to reduce the measured imbalance characteristics to an acceptable residual imbalance level. ...
01/22/2008
7318346Out-of-balance measuring device
The unbalance measuring device comprises a spindle unit (7) with a spindle holder (29) and with a spindle (11) mounted on the spindle holder (29) rotatably about an axis of rotation (9) and carrying at one of its two ends a couplin...
01/15/2008
7289902Three dimensional balance assembly
A three-dimensional balance assembly is provided. The assembly includes a center shaft, two or more eccentric weighted shafts encompassing the center shaft and a first and a second locking mechanism that lock each weighted shaft into any rotational location. Each ec...
10/30/2007
7270007Apparatus and method for reducing vibration
A method of reducing vibration in equipment having first and second mechanically connected subassemblies is disclosed. A sensor is disposed on the first subassembly. A vibration from the sensor is recorded. The vibration is attributable to a composite mechanical ope...
09/18/2007
7249498System and method for determining tire force
A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a ti...
07/31/2007
7243894Mount for vibratory elements
The invention is a mounting system for a vibrational element. The vibrational element has a longitudinal axis, an outer surface and an axial displacement node. The mounting system includes an isolation member which has an isolation surface, an isolating body, and an...
07/17/2007
7237326Device for applying balancing weights to vehicle wheels in wheel balancing machines
A device for applying balancing weights to vehicle wheels in wheel balancing machines, comprising: a detector for the position of an indicator that can slide on rectilinear guides with respect to a wheel supported rotatable on the frame of a balancing machine; remov...
07/03/2007
7231822Machine and method for balancing a member during rotation
A machine for balancing a rotating member includes hard bearing balancing apparatus for determining the magnitude and circumaxial location of imbalance. A sensor responds to the position of the rotating member. A computer receives signals from the balancing apparatu...
06/19/2007
7225673Method for testing the thermally induced unbalance of a rotating machine part, in particular the rotor of a turbogenerator, and device for carrying out the method
In a method for testing the thermally induced unbalance of a rotating machine part, in particular the rotor of a turbogenerator, the rotating machine part or the rotor balanced at normal temperature is brought in the demounted state first to nominal rotational speed...
06/05/2007
7213451Tire uniformity through compensation between radial run out and stiffness variation
Methodology for characterizing non-uniformity forces at a tire spindle, such as low and high speed radial force variations and high speed tangential force variations include the steps of measuring radial run out and radial or tangential force variations at high and/...
05/08/2007
7191650Wheel balancer with continuous static imbalance display
An apparatus for balancing a vehicle wheel simultaneously shows both dynamic imbalance and static imbalance. At least one corrective weight is attached to the wheel to correct the static imbalance. A residual static imbalance is then determined after attachment of t...
03/20/2007
7174271Tire radial force variation prediction method
It is possible to significantly reduce a prediction error of the high-speed RFV and the high-speed TFV in a tire having a large PRO growth amount at high speed. Three or more sample tires are extracted from each lot. The PRO and RFV are measured and the least-square...
02/06/2007
7118270Portable watch
A portable watch comprises a case body having a noncircular pipe-attachment hole extending therethrough, and a winding stem pipe removably inserted from outside of the case body into the pipe-attachment hole and having a noncircular outer peripheral portion that coo...
10/10/2006
7083521Mounting structure of shaft to be tested on a balancer
A mounting structure of a shaft to be tested (the propeller shaft) to a balancer discloses: a centering shaft provided on a center axis of the mounting surface plate which can be fitted to a bearing provided on a center axis of the flexible coupling, wherein the fle...
08/01/2006
7064818Method and apparatus for determining geometrical data of a motor vehicle wheel mounted rotatably about an axis of rotation
A method and an apparatus for determining geometrical data of a motor vehicle wheel 2 mounted rotatably about an axis of rotation 1, in which in at least two planes 19, 20 which are perpendicular to the axis of rotation 1, the distances o...
06/20/2006
7036371Device for detection of an unbalanced oil mass in a rotor, rotor fitted with such a device, and machine equipped with such a rotor
The device for detection of an oil unbalanced mass inside the rotor of a machine includes a device configured to entrain oil present in the rotor in rotation, such that the oil rotation speed is practically the same as the rotation speed of said rotor. ...
05/02/2006
7010975Balancing machine with a clamping device
A balancing machine with a clamping device for mounting a vehicle wheel on a balancing machine shaft. The clamping device has a mounting flange (7) with multiple recesses (13) for receiving at least one centering pin (8). To reduce centering err...
03/14/2006
6962080Rotor balancing and drive shaft simulator therefor
A method of balancing a rotary device (12,14) for balanced rotational operation when connected to a drive shaft (24) by a flexible coupling (26,28). The method comprises the steps of connecting a drive shaft simulator (32,34) to a rotary ...
11/08/2005
6952964Vehicle wheel balancer system
A method for providing a centering check for a rotating body mounted on a wheel balancer based on measuring at least one imbalance parameter and for determining weight display thresholds for static and dynamic imbalance correction weights which vary with parameters ...
10/11/2005
6915684Tire uniformity testing
A method and apparatus for testing tires in a repeatable manner. Testing steps are performed in a manner that minimizes impact on the tire characteristics being measured. In one aspect, tire rotation reversal is performed at a zero crossing of a first harmonic of ra...
07/12/2005
6901798Balancing apparatus for rotating bodies, in particular tool-carriers with tools rotating at high speed
The apparatus (1) comprises at least two balancing rings (10) disposed in axial side by side relationship and coaxial with each other on the rotating body (13) to be balanced. The rings (10) are each unbalanced and rotatable with the rota...
06/07/2005
6892612Tire uniformity machine drive assembly
A tire uniformity machine having a framework for receiving a tire to be tested, a rotatable chuck located within the framework and having a spindle driven by a motor directly coupled to the spindle to selectively cause rotation thereof, whereby the tire is chucked w...
05/17/2005
6871543Apparatus and method for measuring of any imbalance of a motorcycle wheel
Apparatus and method for measurement of any unbalance of a motorcycle wheel, having a rotatable main shaft of a wheel balancing machine having an electrical drive, a clamping shaft fixed coaxially with the main shaft and on which the motorcycle wheel is rotatably mo...
03/29/2005
6840105Method and apparatus for balancing a vehicle driveshaft
The present invention provides a method and apparatus for balancing vehicle driveshafts. One embodiment of a method according to the present invention comprises analyzing a driveshaft and determining a balancing vector to counter any imbalance in the driveshaft. A d...
01/11/2005
6829935Drive location compensation system
A drive location compensation system determines a deviation between an actual and nominal position of a drive location on a rotor relative to an attachment location on the rotor. The compensation system uses a balancing machine and a sensor that detects when one of ...
12/14/2004
6826959Method and apparatus for measuring an amount of disc unbalance
A method and apparatus accurately measuring the amount of unbalance of a disc, based on the time to reach a target RPM (Rotation Per Minute) regardless of an assembly condition of a disc drive. The method includes: storing a plurality of reference disc unbalance val...
12/07/2004
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