| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074574100 | With electrical or magnetic damping | 8 |
| 20080216598 | Coupling shaft adaptor for harmonic balancer - An adaptor that may be installed on a harmonic balancer to enable temporary stopping of the belts on the pulley connected to the harmonic balancer when a substantial increase in power is desired, but which can then enable the belts to be functional again. | 09-11-2008 |
| 20090314129 | ACTIVE VIBRATIONAL DAMPER - A vibration damper and/or isolator for a rotating shaft is provided comprising a hub, an inertia element, a magneto-rheological elastic element interposed between the hub and the inertia element to non-rigidly couple the inertia element to the hub, and an electromagnet operable to produce a magnetic field across the elastic element when energized. The magneto-rheological elastic element, which may comprise a composite of magnetic-responsive particles dispersed within an elastic material, possesses a variable shear modulus that is dependent, at least in part, on the strength of a magnetic field applied to the elastic element. | 12-24-2009 |
| 20110079107 | ACTIVE BALANCING SYSTEM POWERED BY LIGHT - An active balancing system for rotating machinery is provided which is light weight, solid state and powered by radiant energy. One or more balance rings coupled to the rotating machinery each have balancing elements which are moved to a selected position by actuators whose operation is controlled according to measured vibration resulting from imbalance of the machinery. The actuators are powered by an electrical energy generating device, such as a photo cell or a photovoltaic element, which is coupled to the machinery and located across an air gap from a source of radiant energy such as an array of light emitting diodes. | 04-07-2011 |
| 20110197703 | Aircraft propeller balancing system - An aircraft system/method for propeller balancing. The system includes an inboard driver with a first and second inboard electromagnetic coil, the inboard driver and the first counterweight balancing rotor and the second counterweight balancing rotor centered around the aircraft propeller shaft rotating machine member with the first inboard electromagnetic coil proximate the first inboard magnets of the first counterweight balancing rotor, with the inboard electromagnetic coil driver proximate the rotation axis of the aircraft propeller shaft rotating machine member and the first counterweight balancing rotor outboard of the inboard electromagnetic coil driver with the first inboard electromagnetic coil generating a electromagnetic field to electromagnetically step the first inboard magnets of the at least first counterweight balancing rotor to electromagnetically actuate rotational movement of the first counterweight balancing rotor around the rotating machine member and relative to the inboard electromagnetic coil driver to a first rotor held balancing position. | 08-18-2011 |
| 20120227537 | FLYWHEEL ASSEMBLY FOR EXERCISE DEVICES - A flywheel assembly includes a flywheel rotatably mounted on an exercise and a magnetic control device is centrally received in the flywheel for providing damping to the flywheel. The magnetic control device includes two discs abutted each other. Each disc has a wiggle seat rotatable mounted thereon and each wiggle seat is formed with a sector shoe. Each sector has multiple magnets peripherally secured thereon such that the damping acted on the flywheel is adjusted due to the magnets when the two wiggle seats are synchronously wiggled relative to a corresponding one of the two discs. | 09-13-2012 |
| 20130269475 | DOUBLE-FLYWHEEL DAMPER WITH EPICYCLIC GEAR TRAIN - Double shock-absorbing steering wheel, in particular for automobile vehicles, comprising a primary inertia mass connected to an engine shaft ( | 10-17-2013 |
| 20130298724 | ACTIVE BALANCING SYSTEM POWERED BY LIGHT - An active balancing system for rotating machinery is provided which is light weight, solid state and powered by radiant energy. One or more balance rings coupled to the rotating machinery each have balancing elements which are moved to a selected position by actuators whose operation is controlled according to measured vibration resulting from imbalance of the machinery. The actuators are powered by an electrical energy generating device, such as a photo cell or a photovoltaic element, which is coupled to the machinery and located across an air gap from a source of radiant energy such as an array of light emitting diodes. | 11-14-2013 |
| 20140373672 | BALANCER AND WASHING MACHINE HAVING THE SAME - A balancer of a washing machine having improved balancing performance. The balancer includes a balancer housing having an annular channel therein, at least one mass movably disposed in the channel at least one groove recessed in an inner surface of the balancer housing so as to accommodate the mass, and at least one magnet coupled to an outer surface of the balancer housing to restrict the mass accommodated in the groove when an RPM of the drum is within a specific RPM range. The magnet is configured as a plurality of N poles and S poles which are arranged alternately, and the outermost pole of the magnet among the plural N poles and S poles has a relatively shorter length than another adjacent pole. | 12-25-2014 |
