Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8136646 | Cylindrical dynamic damper A cylindrical dynamic damper including: a cylindrical fastening member of elastic body to be fitted onto a rod shaped vibrating member; a mass member of tubular shape disposed about the cylindrical fastening member in a concentric fashion; a plurality of elastic con... | 03/20/2012 |
| 8002094 | Vibration isolation apparatus and methods of manufacture A vibration isolation apparatus is provided that includes a main spring and a tuned mass damper. The main spring has a first end and a second end, and is configured to resonate when vibrated within a predetermined frequency range with a first axial surge mode having... | 08/23/2011 |
| 7987954 | Harmonic damper A damper for reducing vibrations present in various portions of small vehicles, other transportation devices and other rolling and/or motorized devices, such as bicycles, motorcycles, lawn mowers, snowblowers and the like, may comprise a resilient member and a weigh... | 08/02/2011 |
| 7845478 | Vibration damping device An anti-vibration device “D” having a shank (10) fixed to a structure (S) and a mass (4) retained on the shank (10) that is pressed by a spring (8) against the structure (S) with a predetermined force. The spring (8) increases ... | 12/07/2010 |
| 7478710 | Vacuum pump vibration isolator A damper mechanism for isolating vibrations from a vacuum pump constructed and adapted for coupling to a vacuum chamber, the damper mechanism including an elastomeric material, preferably an elastomer diaphragm, coupled between the pump and the vacuum chamber so as ... | 01/20/2009 |
| 7464800 | Torisonal vibration damper of a rotating shaft This invention is directed at torsional vibration dampers of a rotating shaft. The dampers of the invention provide self-tuning to dampen harmonics, over a broad range of shaft angular velocities. Where the shaft rotates with an angular velocity about a longintudina... | 12/16/2008 |
| 7461729 | Device for supporting an aircraft battery A device is provided for suspending a battery (20) of an aircraft, the device including at least one spring (41, 54); the device further includes an adjustment element enabling the stiffness of the spring to be adjusted. ... | 12/09/2008 |
| 7393575 | Sheet molding compound damper component, and methods for making and using the same A damper component for absorbing and dissipating vibration and/or noise resonating from a device is provided. The damper component includes a viscoelastic damper layer, and a continuous constraining layer intimately contacting and encasing the damper layer. The cons... | 07/01/2008 |
| 7354637 | Damper and process thereof A fitting type damper and a process thereof being capable of increasing largely slipping torque in strength are ones that the large slipping torque can be increased not only when the damper is a new product but also after a heat aging test and/or a durability test a... | 04/08/2008 |
| 7337586 | Anti-seismic device with vibration-reducing units arranged in parallel An anti-seismic device is adapted to absorb the vibration energy of a structure, and comprises a plurality of vibration-reducing units, each of which includes a mass, a hydraulic cylinder, and a resilient element. The hydraulic cylinder has an outer end that is conn... | 03/04/2008 |
| 7328474 | Electric toothbrush with linear oscillator An electric toothbrush includes a drive part, a driver, a brush part and a vibration-absorber. The drive part includes a drive shaft provided to be lineally movable and a brush part detachably attached to one end of the drive shaft. The driver is configured to apply... | 02/12/2008 |
| 7328446 | Apparatus for reducing sensitivity of an article to mechanical shock Apparatus for reducing sensitivity of an article to mechanical shock comprises a frame; first and second planar masses mounted in the frame for bi-directional movement relative to the frame along a first axis of displacement; a first lever pivotable about a first fu... | 02/05/2008 |
| 7320381 | Propshafts with honeycomb core dampers A propshaft assembly includes a shaft structure having a hollow cavity and an insert member being positioned within the hollow cavity and engaging the shaft structure. The shaft structure vibrates in response to receipt of an input of a predetermined frequency such ... | 01/22/2008 |
| 7296766 | Lightweight structural damping assembly A structural damping assembly includes a bonding plate, a stiffener layer, an elastomeric layer, and a constraining layer. The elastomeric layer is boned between the stiffener layer and the constraining layer. The bonding plate and the stiffener layer extend between... | 11/20/2007 |
| 7290644 | Vibration absorber with dynamic damper In an engine mount (A) whose axis (X) is oriented in the front to rear direction of a vehicle, a damper weight (12) is embedded within a toroidal stopper rubber (10) fixed at its inner periphery to the rear end of an inner cylinder (2). The damp... | 11/06/2007 |
| 7284527 | Tuned vibration absorber A tuned vibration absorber is disclosed that includes a base, a spring mounted to the base, and a mass mounted to the spring. The absorber is particularly, advantageous when mounted to a specific vehicle component via a mounting bolt that is already employed to moun... | 10/23/2007 |
| 7281522 | Acceleration sensor status detecting apparatus An acceleration sensor state detecting apparatus for detecting a state of an acceleration sensor provided at a vibrating body includes a calculating method for calculating a difference between measured results of the acceleration sensor obtained per first predetermi... | 10/16/2007 |
| 7267740 | Vibration-damping device for vehicles and method of manufacturing the same A vehicle vibration-damping device including a rigid housing and an independent mass member housed in the housing and having a metallic mass of circular shape in section and a rubber elastic body layer adhered to the metallic mass. A distance of a gap between opposi... | 09/11/2007 |
| 7264098 | Harmonic damper for handheld instruments A damper for reducing vibrations in a handheld device, tool and/or instrument may comprise a resilient member and a weight. The resilient member may mounted to any portion of a device having a surface suitable for engaging and retaining the resilient member therein,... | 09/04/2007 |
| 7264097 | Dynamic damper A dynamic damper including: a mass member; a support frame member having a substantially rectangular support frame portion surrounding the mass member with a given gap distance therebetween and a pair of support sides opposed to each other in a first direction with ... | 09/04/2007 |
| 7248228 | Flexure elastomer antenna isolation system A vibration isolation system (100) for a payload (102). The vibration isolation system provides a level of vibration isolation for all vibration translational and rotational components, while minimizing the moment of the payload mass relative to the is... | 07/24/2007 |
| 7243894 | Mount for vibratory elements The invention is a mounting system for a vibrational element. The vibrational element has a longitudinal axis, an outer surface and an axial displacement node. The mounting system includes an isolation member which has an isolation surface, an isolating body, and an... | 07/17/2007 |
| 7240777 | Constrained layer damping assembly A constrained layer damping assembly for a rigid base member having a substantially planar surface comprises a gas impervious damping layer disposed on the substantially planar surface of the base member, and a load element disposed on the damping layer. The damping... | 07/10/2007 |
| 7232017 | Pole vibration damping assembly and method A pole vibration damping means includes an annular housing with internal radial pole encircling chambers in which lead spheres are provided for effecting damping of first mode harmonic vibrations with the assembly being attached to the upper end portion of the pole ... | 06/19/2007 |
| 7226024 | Magnetic altitude adjusting mechanism A magnetic altitude adjusting mechanism is described. The magnetic altitude adjusting mechanism includes a slide, a track, and a magnetic repulsive device. The slide including a magnetic piece is bar-shaped. The magnetic piece is configured in the slide. A longitudi... | 06/05/2007 |
| 7204355 | Shock absorbing structure of two-wheeled vehicle A shock absorbing structure of a two-wheeled vehicle capable of sufficiently absorbing shock and desirably maintain the steerability of the two-wheeled vehicle. The structure includes a shock absorbing member projecting from a front wheel, wherein the shock absorbin... | 04/17/2007 |
| 7198141 | Shock absorbing apparatus in a positioning apparatus A shock absorbing apparatus in a positioning apparatus including a stage apparatus is disclosed. The positioning apparatus includes a main body apparatus for mounting the stage apparatus thereto, and a chamber for maintaining a region, in which the stage apparatus i... | 04/03/2007 |
| 7192357 | Dynamic damper with multiple degree of freedom In a dynamic damper including: a torque transmissible tube member; a mass member housed within an inside of the tube member concentrically to the tube member; and a pair of elastic members, both ends of the mass member in a center axis direction of the tube member a... | 03/20/2007 |
| 7191997 | Vibration dampening system A vibration dampening system including a upper mounting portion, a lower mounting portion, and a vibration dampening portion coupling the upper mounting portion and the lower mounting portion. In some embodiments, the upper mounting portion is adapted to operably co... | 03/20/2007 |
| 7182324 | Microphone isolation system A microphone isolation system. The system includes an isolation member, a support member, and at least two compliant members. The at least two compliant members mechanically support the isolation member and isolate the isolation member from vibrations. The at least ... | 02/27/2007 |
| 7178818 | Vibration damping device for use in automotive suspension system and suspension system using the same A vibration damping device for use in a automotive suspension system, adapted to be disposed at a linking portion between a body of the vehicle and a suspension member that connects and supports a wheel on the body is disclosed. The vibration damping device comprise... | 02/20/2007 |
| 7172800 | Sheet molding compound damper component, and methods for making and using the same A damper component for absorbing and dissipating vibration and/or noise resonating from a device is provided. The damper component includes a viscoelastic damper layer, and a continuous constraining layer intimately contacting and encasing the damper layer. The cons... | 02/06/2007 |
| 7171750 | Method of producing a torsional damper To provide a method of producing a torsional damper to prevent an annular rubber undulation in the pressing of the annular rubber between a hub and an annular mass, improve strain durability of the torsional damper, and decrease a press-in load in the press-in of th... | 02/06/2007 |
| 7165746 | Vibration motor primary flight control actuator The invention provides an actuator for a control surface (7), in particular for a primary flight control of an aircraft, the actuator including a main actuator (3) in a main control line (1) for actuating the control surface (7), the actu... | 01/23/2007 |
| 7158012 | Non-invasive powerline communications system A non-invasive powerline communications system includes: means for generating communication signals at a first location for transmission on a powerline; means for reactively coupling the communication signals to the powerline; and means for receiving said communicat... | 01/02/2007 |
| 7137624 | Fluid-elastomeric damper assembly including internal pumping mechanism A fluid-elastomeric damper assembly operable for damping relative motion between a first structure and a second structure including a housing structure grounded to the first structure and a plurality of elastomer seals coupled to the housing structure, the housing s... | 11/21/2006 |
| 7125048 | Dampener A vibration dampener for a vehicle to militate against vibration which results in undesirable noise. In an embodiment, the dampener is used in a steering column in the vehicle to militate against the vibration being transmitted to the hands of a driver during operat... | 10/24/2006 |
| 7116215 | Sensor device and ceramic package for mounting electronic components A sensor device includes a G sensor producing an electric signal in accordance with physical displacement of its sensing portion and a casing mounting this G sensor. A casing chamber is sealed with a potting material so that the G sensor is covered with the potting ... | 10/03/2006 |
| 7114420 | Vibration attenuator clip and attenuator using the same A clip engages a pair of legs of a vibration attenuator to reduce the local separation of the legs, thereby increasing the force of friction pads, affixed to the legs, against a brake disk to compensate for reduced thickness of the friction pads due to wear. The cli... | 10/03/2006 |
| 7113064 | Active device for damping the vibrations of a vibrating element An active device for damping vibration comprises an actuator comprising a magnetically permeable armature and a coil associated with a magnetically permeable yoke sliding along a displacement axis under the effect of a magnetic field generated by a current conveyed ... | 09/26/2006 |
