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| Number | Title | Issue Date |
| 7044022 | Variable inertia flywheel apparatus In a flywheel having variable inertia, first and second guide grooves are respectively formed at a body and a rotatable member such that an overlapping position thereof is varied according to a relative rotation thereof. A movable mass is disposed at the overlapping... | 05/16/2006 |
| 5496224 | Torsional vibration damper A device for damping torsional vibration of a drive shaft with a liquid damping medium including a primary gear connected to the drive shaft. A secondary gear supports a series of planetary gears in meshed connection with the primary gear. The revolving p... | 03/05/1996 |
| 5481146 | Passive null flux coil magnetic bearing system for translation or rotation An apparatus, and methods of making and using the apparatus, including at least a first path of magnetic flux perpendicular to and penetrating a first plane in space; preferably, a second path of magnetic flux perpendicular to the first plane and having a... | 01/02/1996 |
| 5058453 | Torsional vibration damper A damper of vibrations of the viscous fluid type has a two-piece housing of which a plate is formed by a spinforming process. The formed plate has a plurality of internal walls of which at least a portion of the walls are usable as bearing surfaces after ... | 10/22/1991 |
| 4825718 | Torsional vibration damper A torsional vibration damper, comprising a hub ring and a rotating ring, which encircle one another in a radial space and are positioned in one another by a guide so that they can rotate relative to one another. The collars of the hub ring and rotating ri... | 05/02/1989 |
| 4825983 | Inertia damper An inertia damper having a mounting base to be mounted on a rotary shaft and an inertia weight component which is coupled to the mounting base through a vibration absorbing layer, the vibration absorbing layer being made of a gel material with a penetrati... | 05/02/1989 |
| 4781077 | Stable intershaft squeeze film damper A dual shaft rotating assembly typically used in aircraft engines is provided with a stable intershaft squeeze film damper for reducing vibration. The assembly includes a housing, a first shaft rotatable about an axis of rotation, a second shaft concentri... | 11/01/1988 |
| 4615096 | Method of making a belt tensioner with a rotary fluid dampener A method of making a tensioner for a power transmission belt that is adapted to be operated in an endless path is provided and comprises the steps of providing a support unit for being fixed relative to the belt, providing a belt engaging unit to be carri... | 10/07/1986 |
| 4335627 | Hydraulic flywheel A pair of separable sections forming a hollow structure are coupled to a rotatable shaft. Controlled quantities of hydraulic fluid are introduced into the hollow structure through a passageway within the shaft. One of the sections is selectively slidable ... | 06/22/1982 |
| 4295546 | Torsional vibration dampers The disclosure illustrates a tuned viscous torsional vibration damper having a hub member for attachment to an internal combustion engine crankshaft. An annular inertia mass is journaled within the hub member to form a working chamber which contains a vis... | 10/20/1981 |
| 4295387 | Apparatus for balancing bodies of revolution An apparatus for balancing bodies of revolution, according to the invention, includes distributing units mounted coaxially with a body of revolution in the measurement planes on both sides of the plane passing through the center of mass of the body of rev... | 10/20/1981 |
| 4002086 | Device for automatic correction of unbalance in rapidly rotating machine elements Device for counteracting imbalance in a rotary body and automatically restoring it to a balanced condition. The device comprises a fluid-filled bore in which a throttling member moves freely, which transmits the pressure differentials developed about the ... | 01/11/1977 |
| 3967416 | System for compensating the unbalance of a rotating body, especially of a grinding wheel A balancing apparatus, particularly for a grinding wheel, whereby the wheel has four individual chambers disposed around its axis of rotation with each chamber connected to one face of the ring shaped container by a slot formed in a circular recess at a d... | 07/06/1976 |
| 3950897 | Multi-chambered fluid balancing apparatus A balancing apparatus, particularly for a grinding wheel, whereby the wheel has four chambers disposed around its axis of rotation with each chamber connected to one face of the ring shaped container by a slot formed in a circular recess at a different ra... | 04/20/1976 |
