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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7448298 | Viscous damper A viscous damper having an annular inertial mass body received in a case together with a damping liquid, and a hub for fixing the case on the rotary shaft of an internal combustion engine. The case including a case main body of substantially U-shaped cross section, ... | 11/11/2008 |
| 7284460 | Balancer A weight 4 which is held by a weight holder 3 in a balancer has a pressing face 4b′ which is pressed against a guide face 12a provided along the circumferential direction of rotation of the weight holder 3 by centri... | 10/23/2007 |
| 7192096 | Balance weight cartridge with enclosed balance media A weight comprising a cartridge having at least one interior chamber, the interior chamber at least partially filled with a flowable balance media, and wherein the cartridge is longitudinally arcuate, at least when attached to a wheel, about an angle of up to 180 de... | 03/20/2007 |
| 7134731 | Balance weight cartridge with enclosed balance media A weight comprising a cartridge having at least one interior chamber, the interior chamber at least partially filled with a flowable balance media, and wherein the cartridge is attached to the wheel in a position oblique to the radial centerline of a tire/wheel asse... | 11/14/2006 |
| 7086441 | Hydraulic governor device for use with a rotational shaft, and door assembly including the same A hydraulic governor device for use with a rotational shaft of a door assembly for controlling a rotation of said rotational shaft. The device includes a sleeve; first and second end coverings mounted respectively onto first and second ends of the sleeve so as to de... | 08/08/2006 |
| 7051617 | Methods and apparatus for tuned axial damping in rotating machinery with floating bearing cartridge An apparatus and method for selecting an appropriate viscous fluid for use in control moment gyroscopes, reaction wheels, momentum wheels and the like. Components such as the housing, the rotor, and the viscous fluid are modeled using a three-parameter isolator syst... | 05/30/2006 |
| 7032473 | Shift lever vibration isolator A two-stage, bi-directional shift lever vibration isolator. A shift lever has a sleeve whereinside is a lever vibration isolator which includes a damping body having an axial bore and an outer surface characterized by an hour-glass cross-section composed of convex a... | 04/25/2006 |
| 5277282 | Rotary oil damper A rotary oil damper includes a housing incorporating therein a storing chamber open on one side, a cap having a hole and for shutting the opening in the storing chamber of the housing, a rotor including a base part and a shaft part and disposed rotatably ... | 01/11/1994 |
| 5253928 | Attachment of kinetic wheel balancers A method of mounting a kinetic wheel balancer on a vehicle wheel involves a wheel cover having a interior annular recess near the periphery. The wheel balancer is merely placed in the recess and the wheel cover is installed. The balancer is locked firmly ... | 10/19/1993 |
| 5236115 | Process for the manufacture of a viscous torsional vibration damper For a torsional vibration damper, whose working chamber, formed by an inner shell (17), an outer shell (19), a rear wall (15) and a cover (13) is provided to receive a seismic ring and viscous damping liquid (1), the housing body (1) bearing the working c... | 08/17/1993 |
| 5203826 | Enclosed flywheel A flywheel has a hub with a plurality of blades secured to said hub and extending away therefrom. A plurality of ribs are secured to the blades to form a protective enclosure which rotates with the blades. The ribs are spaced apart a distance selected to ... | 04/20/1993 |
| 5199388 | Axial fan flywheel Disclosed herein is a flywheel comprising a hub, a flange extending from the hub and including a central portion having an under surface, an outer surface, a plurality of openings extending through the central portion in a circular array, and a like plura... | 04/06/1993 |
| 5197010 | Apparatus for continuously actively balancing rotors Apparatus for continuously actively balancing rotors by controlling the mass-distribution of a rotor (24) relative to an axis-of-rotation (27) about which the rotor rotates in a stator (26) is disclosed. The mass-distribution of the rotor is adjustable vi... | 03/23/1993 |
| 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 |
| 4776541 | Fluidic momentum controller Large angular control moments and torques are developed by controllably circulating a relatively small mass of liquid (22) through small diameter pipes (20) describing a large diameter loop (15f,a,b). The loop (15), by thus generating and storing angular ... | 10/11/1988 |
| 4674356 | Dynamic rotational counterbalance structure A dynamic rotational counterbalance structure includes a discoid balance body having a groove or race formed in an outer circumferential surface of the body. A plurality of movable weights such as spherical weights are positioned in the groove along with ... | 06/23/1987 |
| 4625509 | Combustion engine A combustion engine has a plurality of equidistantly spaced jets disposed about a drive shaft. Fuel flows through the center of a two-piece drive shaft and combines with air in jets for combustion which is self-sustaining once ignited. Each of the jets is... | 12/02/1986 |
| 4615237 | Torsional vibration damper A torsional vibration damper comprises an internal flange body and an external inertial body each having a plurality of intermeshing damper laminae fastened thereto along a margin and defining therebetween interstital spaces filled with a highly viscous l... | 10/07/1986 |
| 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 |
| 4572337 | Azimuth damper Fluid damper for damping aiming movements, for instance when tracking a target. The damper comprises a substantially disc-shaped cylindrical housing (9) in which a drum-wheel (11) is supported for rotation so that an inner gap spacing (24) is provided bet... | 02/25/1986 |
| 4462270 | Friction index modifier for damper An improvement over U.S. Pat. No. 3,440,899 by McGavern. That patent includes a first plurality of shear liquid filled cavities defined by through apertures in the elastomer member. The improvement of this invention resides in adding a second plurality of... | 07/31/1984 |
| 4432254 | Viscous damper having rigid plastic structure A viscous damper which has any one or more of three main features, namely at least one of a rotor and housing being formed from rigid plastic material, a bearing projection on one housing portion extending from the plane of the housing working surface les... | 02/21/1984 |
| 4386728 | Hermetic sealing of abutment joints by non-vacuum focused energy welding A method of hermetically sealing by NVFE (non-vacuum focused energy) welding abutment joints formed by elongate surfaces. At substantially spaced intervals narrow shallow vent grooves are formed across one of the surfaces, while leaving between the vent g... | 06/07/1983 |
| 4314486 | Vibration dampening ring A ring including an annular mounting flange portion and an annular main body portion formed integrally with and spaced axially from the mounting flange portion is provided. The mounting flange portion includes structure for its rigid mounting on and suppo... | 02/09/1982 |
| 4294343 | Friction clutch for motor vehicles A friction clutch for a motor vehicle essentially consisting of a flywheel disk and of a clutch cover rigidly connected therewith which surrounds a pressure ring and a spring, whereby the spring is supported, on the one hand, at the clutch cover and, on t... | 10/13/1981 |
| 4265386 | Torsional fluid damper system Disclosed are methods and apparatus for providing torsional fluid dampening in the kHz region with an inertial mass located in a rotary fluid container, and with a viscous fluid friction boundary layer located between that mass and a circumferential wall ... | 05/05/1981 |
| 4226139 | Viscous shear dampers In a viscous shear damper the seismic mass is chamfered at all its corners. Thus, the clearances between the seismic mass and its casing are gaps with oppositely widening out sections separated by middle sections of smallest widths.... | 10/07/1980 |
| 4200003 | Magnetic viscous damper Disclosed herein is a rotary viscous damper using a magnetic fluid as the damping medium. The damper comprises a permanent magnet rotor enclosed in a magnetically permeable housing. The magnetic fluid fills the space between the rotor and the housing and ... | 04/29/1980 |
| 3986411 | Torsional vibration damper A torsional vibration damper of the type having a hub adapted to be coupled to a rotary shaft. The hub carries an elastomer member, the elastomer member in turn carrying an inertia member. A cavity is formed at the interface between the hub and inertia me... | 10/19/1976 |
| 3955400 | Viscous damper and method for determining the rotational position of a weight thereof A viscous damper comprises an annular inertia weight rotatably mounted in a housing adapted for attachment to the crankshaft of an internal combustion engine. Position indicating means are formed on the weight to determine the rotational position thereof,... | 05/11/1976 |
