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| Number | Title | Issue Date |
| 8047061 | Method and apparatus for real-time estimation of four wheel imbalances for chassis prognosis A system and method for determining whether a particular wheel on a vehicle is un-balanced during operation of the vehicle. The method includes providing wheel angle signals from the wheels of the vehicle and providing a vibration measurement signal from a response ... | 11/01/2011 |
| 7555939 | Method for the modular balancing of a turbomachine rotor A method of balancing a first turbomachine module (20), including along an axis of rotation a bearing plane (22) on one side and a junction plane (24) on the other, with respect to a rotor (1) including said module (20), in which | 07/07/2009 |
| 7426858 | Method of balancing a suction unit comprising a ventilator and an electric motor A method of manufacturing an electrical suction unit for use in a vacuum cleaner includes a turbine unit and an electrical motor with a rotor and a stator. The turbine unit is attached to the rotor and forms, together with the rotor, a rotatable part of the suction ... | 09/23/2008 |
| 7424403 | Low power vibration sensor and wireless transmitter system A low power vibration sensor and wireless transmitter system has one or more sensors that sense parameters of a machine including vibration and produces dynamic signals representing the sensed parameters. The system converts the signals to a digital format, digitall... | 09/09/2008 |
| 7400943 | Methods and systems for analyzing engine unbalance conditions Methods and systems for analyzing engine unbalance conditions are disclosed. In one embodiment, a method includes receiving vibrational data from a plurality of locations distributed over an engine and a surrounding engine support structure, and inputting the vibrat... | 07/15/2008 |
| 7363111 | Methods and systems for analyzing engine unbalance conditions Methods and systems for analyzing engine unbalance conditions are disclosed. In one embodiment, a method includes receiving vibrational data from a plurality of locations distributed over an engine and a surrounding engine support structure, and inputting the vibrat... | 04/22/2008 |
| 7337664 | Lifting device for fitting vehicle wheels on wheel balancers Lifting device for fitting vehicle wheels on wheel balancers, comprising a support platform for at least one vehicle wheel to be fitted on/removed from the substantially horizontal balancing shaft of a wheel balancer, a jack for lifting or elevating said platform, a... | 03/04/2008 |
| 7321809 | Methods and systems for analyzing engine unbalance conditions Methods and systems for analyzing engine unbalance conditions are disclosed. In one embodiment, a method includes receiving vibrational data from a plurality of locations distributed over an engine and a surrounding engine support structure, and inputting the vibrat... | 01/22/2008 |
| 7275422 | System for assembly of a rotating machine In each work process of the assembly work of a large rotating machine, an input terminal unit 101 displays measuring points necessary for measurements of radial and axial clearances between a rotor and a casing so as to provide workers with instructions. When worker... | 10/02/2007 |
| 7275302 | Method of forming a disc pack A method of forming a disc pack for use in a disc drive is provided. The method includes forming at least one alignment feature between an inner diameter and an outer diameter of each of a plurality of discs. The at least one alignment feature of a first disc of the... | 10/02/2007 |
| 7272513 | Optimal shaft balance using integer programing to handle discrete adjustment Determining a shaft balance adjustment includes measuring an initial vibration of the shaft, determining if the initial vibration is greater than a predetermined value, and, if the initial vibration is greater than the predetermined value, determining an adjustment ... | 09/18/2007 |
| 7237326 | Device 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 |
| 7234350 | Unbalance measuring apparatus A bearing 41 of a support portion 4 for rotatably supporting a shaft 11 of a rotating body 10 to be measured with respect to the magnitude of unbalance thereof is formed into a hollow U-shape and has formed therein an injection port 41... | 06/26/2007 |
| 7219036 | Method for balancing an article for rotation A method for statistically analyzing the operation of a machine for balancing articles for rotation so as to reduce measurement errors and thereby enhance productivity and quality including the steps of collecting raw data during production balancing of articles for... | 05/15/2007 |
| 7199971 | Balancing a rotatable body in multiple planes using invertible balancing plugs Multiple balancing plugs (114) preferably have a common length and a common offset center of gravity (130) in the length dimension for providing dual plane balancing of a rotatable body (100). The rotatable body (100) includes a plurality... | 04/03/2007 |
| 7199873 | Method and apparatus for balancing a motor vehicle wheel A method and apparatus for balancing a motor vehicle wheel, in which after an unbalance measuring operation, at least one balancing weight is attached to at least one balancing plane in a given angular position of the rim of the motor vehicle wheel. The rim surface ... | 04/03/2007 |
| 7191650 | Wheel 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 |
| 7134333 | System and method for dispensing adhesive imbalance correction weight A system and method are disclosed for dispensing an amount of imbalance correction weight for attachment to a rotary element to reduce an imbalance in the rotary element. The imbalance correction weight includes a number of individual weights provided on a length of... | 11/14/2006 |
| 7086284 | System and method for dispensing adhesive imbalance correction weight A system and method are disclosed for dispensing an amount of imbalance correction weight for attachment to a rotary element to reduce an imbalance in the rotary element. The imbalance correction weight includes a number of individual weights provided on a length of... | 08/08/2006 |
| 7069654 | Rotor balancing A method of balancing a rotor (10), the said method comprising the steps of determining the position of the center of mass of a rotor (10) to be balanced prior to the rotor (10) being machined to its final dimensions, and machining the rotor ( | 07/04/2006 |
| 7066025 | Method for balancing a drive shaft A method for automatically balancing a drive shaft about a rotational axis. The method includes providing an unbalanced drive shaft for rotation about a rotational axis to determine an out-of-balance condition with respect to the drive shaft. A plurality of standard... | 06/27/2006 |
| 6976385 | Lateral wheel balancing apparatuses and methods for lateral wheel balancing Apparatuses and methods for laterally balancing a wheel or for determining the location for placing a balancing weight on the wheel for laterally balancing the wheel are provided. A method provided includes laterally balancing a wheel on a elongate member. An appara... | 12/20/2005 |
| 6971154 | Hard disk balancing apparatus and method for hard disk drive A hard disk balancing apparatus for a hard disk drive including an eccentricity detection unit to detect an eccentricity amount and an eccentricity position of the hard disk with respect to a rotation axis of a spindle motor for rotating the hard disk as an origin, ... | 12/06/2005 |
| 6962080 | Rotor 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 |
| 6950763 | Optimal shaft balance using integer programming to handle discrete adjustment Determining a shaft balance adjustment includes measuring an initial vibration of the shaft, determining if the initial vibration is greater than a predetermined value, and, if the initial vibration is greater than the predetermined value, determining an adjustment ... | 09/27/2005 |
| 6923058 | System and method for balancing a driveline system A process for balancing a vehicular driveline including a propeller shaft and an input shaft of a vehicle axle interconnected by a universal joint. First, the vehicle propeller shaft is balanced to a predetermined residual imbalance having an imbalance vector angle ... | 08/02/2005 |
| 6763285 | Adaptive compensation of sensor run-out and mass unbalance in magnetic bearing systems without changing rotor speed The present invention provides a method and system for stabilizing a rotor about its geometric center in a magnetic bearing system at a constant rotor speed. In the method, the controller for controlling the magnetic bearing uses an adaptive control algorithm which ... | 07/13/2004 |
| 6757636 | Computerized electronic runout A system and method for measuring the radial runout of a shaft, rotatably supported on a standard rest, includes at least a first journal surface sensing assembly, a second journal surface sensing assembly, and a test surface sensing assembly which sense the radial ... | 06/29/2004 |
| 6690533 | Drive level actuator imbalance torque test The present invention provides a method to determine and to locate the position of the imbalance torque of an actuator in a disc drive. There are several steps performing different functions in the method. The first step of the method performs the functio... | 02/10/2004 |
| 6676317 | Rotor balancing structure, sheet material processing device, and image forming device The drum has a balancer disposed at both ends of a drum body around which a printing plate is wound, and with a rotating shaft rotatably supported by a supporting plate via an elastic support member of a shaft receiving member. When the rotating drum is r... | 01/13/2004 |
| 6671755 | System for data capture from a rotor A data capture system (1) has modular amplifier circuits (10) connected to modular capture circuits (11) within a rotor 2. Each capture circuit (11) has an FPGA (26) operation according to low-frequency and high-frequency state machines (M1, M2) to contro... | 12/30/2003 |
| 6622551 | Apparatus for balancing vehicle wheels An apparatus for balancing vehicle wheels, comprising a machine frame 10, a main shaft 12 which is mounted rotatably in the machine frame 10 and on which a vehicle wheel to be balanced can be clamped, and a guard hood 20 which at least partially engages o... | 09/23/2003 |
| 6581444 | Wheel balancing method An automotive roadwheel is pre-balanced before a tire is mounted thereto. The wheel is balanced by applying a mass of ballasted adhesive to a protected surface of the wheel.... | 06/24/2003 |
| 6430992 | Device for measuring the forces generated by a rotor Imbalance A device for measuring forces generated by unbalance of a rotor, in particular a motor vehicle wheel, includes a stationary frame, an intermediate frame positioned radially within the stationary frame, and first levers supporting the intermediate frame on... | 08/13/2002 |
| 6189371 | Method for adjusting rotation balance of disk and device for the same The present invention provides a method and apparatus to adjust the rotation balance of a disk with high accuracy and ease during manufacturing. A disk is attached to a spindle to form a disk assembly having an adjustable center of gravity. The disk assem... | 02/20/2001 |
| 6189372 | Method for balancing a body of revolution In the method for balancing a body of revolution using a balancing machine which comprises an adjustment means for positional resetting of compensation masses, firstly the compensation masses are brought into zero positions thereof, wherein the imbalance ... | 02/20/2001 |
| 6122957 | Wheel-balancing method and device The invention concerns a device for balancing a wheel comprising a rim and a tire. This device comprises a unit for measuring the wheel imbalance and a unit for scanning the rim dimensions. The scanner unit and the imbalance-measuring unit are connected t... | 09/26/2000 |
| 6094804 | Balance correction station for a disc drive An apparatus and method for automatically correcting the dynamic imbalance of a disc pack of a disc drive, the disc pack conveyed to a first selected position in a balance correction assembly station where a rotary positioner lifts and rotates the disc pa... | 08/01/2000 |
| 6082186 | Adjustable balance weight A balance weight includes a body having a mounting aperture for receiving a mounting pin, and a guide tab for engaging a complementary guide slot in a rotor. The rotor includes a spinner fixedly joined thereto for rotation therewith, with the spinner havi... | 07/04/2000 |
| 5983168 | Phase shift accommodation in active vibration damping system An active vibration damping system (e.g. an active tuned mass damping system) uses phasor techniques for accommodating excessive phase shifts in system components (e.g. amplifier and actuators). Optimal control techniques are used to determine preliminary... | 11/09/1999 |
