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| Number | Title | Issue Date |
| 7113317 | Polygon mirror scanner having an easily replaceable bearing A polygon mirror scanner is disclosed, comprising a rotor having a rotating shaft, a polygon mirror having a regular prism and having a mirror surface on each side thereof, and a magnet; a bearing device, rotatably bearing the rotor, having a radial bearing, a thrus... | 09/26/2006 |
| 6145377 | Balance corrector for scanner motors and balance correcting method thereof The present invention is directed to a balance correcting method for scanning optical apparatus for deflection-scanning a light beam in such an arrangement that a drive motor is of an inner rotor type in which a rotary body having a drive magnet is dispos... | 11/14/2000 |
| 5929334 | Ultrasensitive balancing device for automotive wheels A balancing device for a wheel and tire assembly has an elongate cylinder with an upper end, a lower end, an exterior surface and male threads formed on the exterior surface. A longitudinal cylinder bore extends axially through the cylinder and receives t... | 07/27/1999 |
| 5138882 | Method and apparatus for measuring static unbalance of a rotary member In a method and apparatus for measuring static unbalance of a rotary member, involving determining the axial moment of inertia of the rotary member which is mounted pivotably in a horizontal position in a balancing system, about an axis of the balancing s... | 08/18/1992 |
| 5081865 | Center of gravity locating method A system is provided for determining the center of gravity of a body by providing a balance arm supported from a single pivot point, then positioning the body on the balance arm and measuring the rotation of the balance arm in two orthogonal planes. A dis... | 01/21/1992 |
| 4700570 | Hard static balancing machine A hard static balancing machine is disclosed. A pivot pin member is mounted at the top of a stationary support member. A workpiece support assembly is pivotally mounted on the pivot pin member. A force transmitting member extends downwardly from the workp... | 10/20/1987 |
| 4691567 | Apparatus for determination of the static unbalance in a body A unitary adaptor plate for determining static unbalance in a body. The plate includes an outer body, a middle body, and an inner body, and each of the inner and outer bodies is connected to the middle body by means of opposed torsion elements to provide ... | 09/08/1987 |
| 4573355 | Device for the determination of the unbalance of propellers A propeller 12 is supported by means of a propeller accommodation 10 comprising a fixing flange on a tubular hollow bending spring 16. A tubular transmitting member 24 coaxial to the hollow bending spring 16, is affixed to the propeller accommodation 10. ... | 03/04/1986 |
| 4467650 | Hard static balancing machine A vertical static balancer incorporating novel methods for workpiece support and pivoting, restoring force spring placement, and means for transmission of motion and force therebetween. A single-element flexure pivot provides workpiece support while permi... | 08/28/1984 |
| 4428225 | Device for measuring the imbalance of an object A device for measuring the imbalance of a disc-like object has at least three load sensors having cantilevers for supporting the object at their corresponding measuring points selected, with a same angular distance therebetween, on a measuring circle whic... | 01/31/1984 |
| 4370813 | Automatic self-leveling instrument mount A self-leveling instrument mount comprises an instrument table pivotally mounted above a stationary frame on first, second and third vertical support arms. The first support arm is a fixed length member connected to the frame through a ball and socket joi... | 02/01/1983 |
| 4327582 | Liquid wheel balancer A liquid wheel balancer including a spherical bubble level mounted on a disc held on the rim of a wheel by telescoping, adjustable arms radiating from the disc. This assembly, and the tire and wheel are floated horizontally in a tub of water or other liqu... | 05/04/1982 |
| 4265027 | Automatic self-leveling instrument mount A self-leveling instrument mount comprises an instrument table pivotally mounted above a stationary frame on first, second and third vertical support arms. The first support arm is a fixed length member connected to the frame through a ball and socket joi... | 05/05/1981 |
| 4233846 | Method and apparatus for measuring the imbalance of a bowling ball An apparatus for measuring the imbalance of a bowling ball includes a base, a first gimbal rotatably mounted on the base and a second gimbal rotatably mounted on the first. A ball is supported by the second gimbal and spun while having the same orientatio... | 11/18/1980 |
| 4197629 | Apparatus for machining and statically balancing a large and heavy workpiece An apparatus for use in machining and statically balancing a large and heavy workpiece such as the runner of a hydraulic turbine. The apparatus includes a vertical center support column on the upper end of which is mounted a rotatable turntable. The workp... | 04/15/1980 |
| 4116073 | Balancing system A balancing system for balancing an object mounted thereon in a predetermined plane. The balancing system includes a laser mechanism for producing a coherent first beam of visible electromagnetic radiation in a substantially vertical direction line. A bea... | 09/26/1978 |
| 4075891 | Self-leveling static wheel balancer A static vehicle wheel balancer has a base which is supported on the floor and which mounts a vertical post. A wheel balance head is provided for receiving and centering a tire and wheel assembly to be balanced and has a level for indicating unbalance. A ... | 02/28/1978 |
| 4063462 | Apparatus for the determination of the static unbalance of a test body An apparatus for determining static imbalance of a test body with a receiving plate mounted gimbal-fashion in antifriction bearings with data receivers connected to the receiving plate whereby the receiving plate is supported radially, i.e., in a directio... | 12/20/1977 |
| 4060003 | Imbalance determining apparatus and method Apparatus for determining the amount and location of imbalance in an article which is to be balanced about its axis includes a table for receiving the article and for positioning its axis. The table is supported upon a base for substantially free tilting ... | 11/29/1977 |
| 4052905 | Tire balancing transducer A device for measuring the magnitude and direction of unbalanced moments about each of two mutually perpendicular axes resulting from the displacement of the center of gravity of an object being measured, such as a tire, from the third mutually perpendicu... | 10/11/1977 |
| 4041781 | Self-leveling static wheel balancer A static vehicle wheel balancer has a base which is supported on the floor and which mounts a vertical post. A wheel balance head is provided for receiving and centering a tire and wheel assembly to be balanced and has a level for indicating unbalance. A ... | 08/16/1977 |
| 4015481 | Bubble balancer A pivot head for a bubble balancer has a socket which receives a spherical support member, the socket having a concave top wall which rests on the spherical member and a circular side wall in close proximity to the equator of the spherical member.... | 04/05/1977 |
| 4010651 | Two-stage wheel balancer A portable bubble balancer incorporates a wheel support and pivot assembly which is spring biased in an upward direction into an interlocked position with the base of the balancer to prevent pivoting of the wheel support in the absence of a wheel thereon.... | 03/08/1977 |
| 4005607 | Static wheel balancer A static vehicle wheel balancing head has a base mounting an upright post terminating in a concave spherical anvil surface that supports three support balls. The balancing head has the usual means for mounting a wheel and has a single socket mounted pivot... | 02/01/1977 |
| 3942383 | Wheel balancing devices A static wheel balancer is provided having a universally tiltable balancing head that is small enough to fit in the glove compartment of an automobile.... | 03/09/1976 |
| 3935747 | Device for locating mass centers and other purposes A device for locating mass centers, checking rotational axes and correcting for imbalance in work pieces, which includes a first and a second set of knife edge supports transversely disposed with respect to each other and having a first member received an... | 02/03/1976 |
