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| Number | Title | Issue Date |
| 8051710 | Method and apparatus for balancing a rotor A midlength balanced rotor comprises a rotor assembly for rotation about an axis of rotation defining at least one of an axially extended, radially concentric, centerline borehole; an array of radially or tangentially distributed, axially extended pockets; and a ser... | 11/08/2011 |
| 7574913 | Vehicle wheel balancer system A method for determining weight display thresholds for static and dynamic imbalances and correction weights on a rotating body such as a vehicle wheel assembly, which vary with parameters of the rotating body, wheel and/or tire, and for displaying measured imbalance... | 08/18/2009 |
| 7481108 | Rotatable member with an annular groove for dynamic balancing during rotation A method is provided for balancing a rotating member having an annular balancing groove which is configured to receive and retain a balancing projectile. The method includes determining a circumaxial imbalance location, and firing a balancing projectile in timed rel... | 01/27/2009 |
| 7441456 | Drive shaft balancer and method utilizing weight transporting electrodes The invention is a machine for balancing drive shafts under computer control. Compensatory weights are formed in a weight-forming dye assembly which is coaxially repositionable in relation to the longitudinal axis of the drive shaft. Additionally, the weights formed... | 10/28/2008 |
| 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 |
| 7371042 | Method 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 |
| 7351018 | Method and apparatus for measuring a depth of holes in composite-material workpieces being machined by an orbiting cutting tool A method and apparatus for measuring a hole depth in a composite-material workpiece machined by a orbital cutting tool, including the steps of applying a low-level electric potential to an electrically insulated cutting tool having a cutting head with radial and axi... | 04/01/2008 |
| 7347784 | Driveshaft assembly and method of manufacturing same A driveshaft assembly includes a yoke including a body portion, a pair of opposed yoke arms that extends generally in a first axial direction from the body portion, and a neck portion that extends generally in a second axial direction from the body portion. A drives... | 03/25/2008 |
| 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 |
| 7249508 | Device and method for fastening balancing weights to rotors, in particular to propeller shafts or cardan shafts In a device (3) for fastening balancing weights to rotors (2) with a plurality of compensation planes, in particular to propeller shafts or Cardan shafts, preferably in a balancing machine (1) that includes at least one gripper-like device which... | 07/31/2007 |
| 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 |
| 7236855 | Method for compensating and out-of-balance condition of a rotating body In a method for compensation of an out-of-balance condition of an imaging data acquisition device, rotatable around a patient opening of a stationary unit of a tomography apparatus, such as an x-ray computed tomography apparatus or an ultrasound tomography apparatus... | 06/26/2007 |
| 7234916 | Method and apparatus for balancing gas turbine engines A method and apparatus is provided for field balancing an assembly including a power turbine. The method includes coupling the power turbine to a load, identifying a first balancing plane that is aft of the power turbine, and identifying a second balancing plane tha... | 06/26/2007 |
| 7231822 | Machine 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 |
| 7225673 | Method 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 |
| 7221441 | Method for measuring optically reflective vehicle wheel surfaces A method for the operation of a vehicle wheel service system configured to illuminate a surface of a vehicle wheel rim and tire assembly. The method includes the steps of mounting a vehicle wheel rim and tire assembly onto the vehicle wheel service system, coating a... | 05/22/2007 |
| 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 |
| 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 |
| 7167338 | Magnetic disk apparatus A magnetic disk apparatus for reading and writing information to a magnetic disk including a motor for rotating the magnetic disk mounted thereon; a disk-shaped clamp for mounting the magnetic disk on the motor by screw fastening; and a C-shaped balancer for adjusti... | 01/23/2007 |
| 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 |
| 7099112 | Balance ring An apparatus and method for balancing a disk are described. A balance ring may be a circular band for placement along the inner diameter of a disk. On the outer diameter of the balance ring, one or more clamp structures may extend outward to attach the balance ring ... | 08/29/2006 |
| 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 |
| 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 |
| 7065444 | Method of matching a vehicle wheel A method for determining an optimized position between the tire and rim of a wheel to improve operation smoothness of the wheel. Measurements are conducted to determine respective effects of wheel imbalance and non-uniformities contributed by the tire and rim at dif... | 06/20/2006 |
| 7035045 | Balance clip holder feature on a spindle motor with nickel-teflon coating on balance clips for reducing friction during clip adjustment in balance process A spindle motor is equipped with pre-installed adjustable balance clips on a stainless steel motor hub to facilitate better balance correction. A balance clip holder feature is formed in the hub and has grooves to hold the balance clips. The balance clip holder can ... | 04/25/2006 |
| 7032689 | Method and system for predicting performance of a drilling system of a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specificat... | 04/25/2006 |
| 6981302 | Use of driveshaft wall thickness variation to balance a driveshaft assembly A method of manufacturing a tube for a vehicle driveshaft assembly forms a flat sheet of material having a greater thickness than other portions over a portion of its width and along its length, rolling the sheet about a longitudinal axis such that its lateral edges... | 01/03/2006 |
| 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 |
| 6901798 | Balancing 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 |
| 6890100 | CT gantry balance system A method and system for balancing CT gantry mechanisms. Two balance locations are preselected on the rotating base member and stacks of spacers, shims, and weights are provided at each site. Strain gate sensors are provided on the stationary base member and included... | 05/10/2005 |
| 6789422 | Method and system for balancing a rotating machinery operating at resonance A method and system for balancing a rotating machinery that operates at or near resonance during its normal operating speed, and which has three separate shafts whose axes of rotations are not aligned along a common axis of rotation and counterweights connected near... | 09/14/2004 |
| 6778353 | Balance ring An apparatus and method for balancing a disk are described. A balance ring may be a circular band for placement along the inner diameter of a disk. On the outer diameter of the balance ring, one or more clamp structures may extend outward to attach the balance ring ... | 08/17/2004 |
| 6748806 | Dynamic balancing system for computed tomography gantry Static and/or dynamic balancing of a CT gantry is provided by electronically positionable masses incorporated into the gantry structure that may be moved to nullify gantry imbalances caused by variation in components specifications or replacement of components on a ... | 06/15/2004 |
| 6694812 | Rotatable shaft balancing machine and method with automatic flexible shaft balancing equipment Machine and method for dynamically balancing rotatable shafts featuring positioning and welding equipment that is controlled by an electronic control unit that determines the imbalance of a rotating shaft and the amount of weight required at predetermined... | 02/24/2004 |
| 6678114 | Disc biasing scheme to minimize single plane unbalance for hard disc drives A method for minimizing unbalance in the disc pack of a disc drive where the unbalance of the spindle motor is quantified and incorporated into the biasing assembly of the disc pack. In the assembly process, the discs are biased in a manner such that the ... | 01/13/2004 |
| 6665625 | Energy-based thresholds applied dynamic balancing A method and system for dynamically balancing a rotating system or rotating device utilizing energy-based threshold measurements, wherein the rotating system contains sensors therein. Sensor measurements are compiled from the sensors. The sensor measureme... | 12/16/2003 |
| 6622105 | Dynamic correlation extension for a self-balancing rotatable apparatus A method and system for detecting acceleration and force data associated with a rotating device or rotating system is disclosed, which includes a sine table and a cosine table that may be created based on a particular number of measured data points per re... | 09/16/2003 |
| 6616089 | 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 ... | 09/09/2003 |
