Class 73/461 - Mass centering

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the object is rotated to locate end
No. of patents: 29
Last issue date: 11/11/2008

Number	Title	Issue Date
7448266	Fabrication method of optical disk drive A fabrication method of an optical disk drive is provided. The method adapted for alleviating the eccentric issue of a loaded optical disk. The optical disk drive, for example, includes a turntable having a plurality of engaging springs. The engaging springs are ada...	11/11/2008
7328614	Vehicle 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
7102850	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...	09/05/2006
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
7040026	Wheel runout measuring method A method for measuring side run-out of a wheel by turning the wheel mounted on a roller supported rotatably. It is judged whether or not the difference between the side run-out of a wheel at the start point onf one turn and the end point of one turn falls within a s...	05/09/2006
6952964	Vehicle 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
6928871	Method and apparatus for centeredly clamping a motor vehicle wheel on a main shaft of a wheel balancing machine In a method and an apparatus for centeredly clamping a motor vehicle wheel on a shaft of a wheel balancing machine the wheel is first clamped on a centering cone member mounted on the main shaft and then a post-centering operation is effected wherein the wheel is at...	08/16/2005
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
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
6647784	Balance adjusted wheel and manufacturing method The object of the invention is to provide a balance adjusted wheel and its manufacturing method utilizing a cutting surface, for which cutting is performed by setting a point as a rotation center offset by a given distance from the central axis of a wheel...	11/18/2003
6481282	Wheel balancer system with centering check A wheel balancer includes a method that provides a centering check for a wheel that is based on measuring wheel runout. The wheel is mounted on a spindle of the wheel balancer and runout measurements are taken. The wheel is remounted on the spindle and ru...	11/19/2002
6178063	Statically and dynamically balancing a three-disc disc stack assembly Apparatus and method for providing static and dynamic balance in a disc drive having three recording discs. A spindle motor hub includes an outer surface which circumferentially extends about a central axis at an outer radius less than a disc inner radius...	01/23/2001
5811678	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...	09/22/1998
5724271	Model-based method for optimized field balancing of rotating machinery A method for balancing a rotor of a rotatable machine such as a steam turbine-generator unit. A time-dependent equation is formulated for rotor vibration based on a rotordynamic computer model derived from finite element analysis of the machine's rotor vi...	03/03/1998
5650684	Rotating body and machines incorporating same In a rotating body or machinery that is equipped with at least one such rotating body, the power loss resulting from the inertial force, which is an internal force caused by the rotation of the rotating body, contributes to mechanical inefficiency, as wel...	07/22/1997
5400256	Frequency tracking adaptive synchronous vibration suppression apparatus A frequency tracking adaptive synchronous vibration suppression apparatus for suppressing vibrations in a dynamic system subject to synchronous disturbance includes calculating the sine and cosine quadrature components of the energy representative of the ...	03/21/1995
5313399	Adaptive synchronous vibration suppression apparatus An adaptive synchronous vibration suppression apparatus for suppressing vibrations in a dynamic system subject to synchronous disturbance detects the energy representative of the synchronous component of the vibration induced by the synchronous disturbanc...	05/17/1994
5274566	Aligning average axis of hollow workpiece cavity with rotary machine axis A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average oute...	12/28/1993
5270942	Processing ultrasonic measurements of a rotating hollow workpiece A computer (21) processes the time between ultrasonic echoes received at a transducer (19) indicative of the outer radius and wall thickness of a workpiece (10) by subtracting (69) the weighted average (80-90) wall thickness from the weighted average oute...	12/14/1993
5183490	Optical fiber soot synthesis apparatus An optical fiber soot synthesis apparatus which synthesizes around a fiber starting member forming a core of an optical fiber an optical fiber soot forming a cladding and which accurately calculates in real time the mass of the optical fiber soot when dep...	02/02/1993
4941352	Method and apparatus for mass centering of a rotor In a method and apparatus for mass centering of a rotor, the unbalance of the rotor is measured and the result of the unbalance measuring operation and the weight of the rotor are used to determine the position of the axis of inertia which extends through...	07/17/1990
4891981	Method for determining the position and magnitude of unbalance correction The position and magnitude of an unbalance correction in specified correction planes is determined for the purpose of reducing a determined unbalance in a body. Such correction planes may comprise the inner and outer surfaces of a wheel. Incremental corre...	01/09/1990
4852405	Machine for mass-centering rotors A machine for mass-centering rotors consists of a pair of spaced apart headstocks, each rotatably supporting an adapter disc, and each equipped with a device for the application of machining centers in a rotor being investigated. Adjuster mechanisms on th...	08/01/1989
4644792	Method and apparatus for determining the mass center of a body A mass centering method and apparatus for ascertaining and marking the location of the axis of inertia of rough or premachined rotating article, allowing the marked axis to be used as a centerline in further processing in order to keep the remaining unbal...	02/24/1987
4546644	Method and apparatus for locating the dynamic axis of a sphere The dynamic axis of a sphere, e.g. golf ball, is located by spinning the sphere at high speed while it is supported on a low friction-bearing surface, thus allowing the desired stable axis to align itself with the spin axis. Markings indicative of the loc...	10/15/1985
4545021	Method of correcting unbalance of a rotating body Dynamic unbalance of a rigid rotor is corrected by machining the rotor in a direction parallel to the rotor axis of said rotor by subtracting or adding weights corresponding to a corrective weight in two planes for compensating initial unbalanced vectors ...	10/01/1985
4446732	Crankshaft balance centering A switch is provided for ending the shifting movement of a crankshaft when the balance thereof is being adjusted in a machine for balance centering. The machine for balance centering is provided with a bearing bed below a swing bridge supported by means o...	05/08/1984
4300197	Process and apparatus for the centering of bodies of rotation having uneven mass distribution along their shaft axis The invention relates to a process and apparatus for the centering of rotational bodies having uneven mass distribution along the shaft axis, particularly crankshafts, in a dynamic centering machine, whereby a working axis is obtained by shifting both end...	11/10/1981
4060707	Balancing device and method for a rotating body A balancing device and method for balancing a rotating body during operation. The device and method detects the phase and amount of unbalance and provides signals in synchronism with the unbalance. Local heating of the rotating body is provided to counter...	11/29/1977

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Class 73/461 - Mass centering