| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 052167200 | Dynamic force generator | 12 |
| 20090049767 | TUNED LIQUID DAMPER - A tuned liquid damper comprising a housing with a hollow cavity within said housing and a first fluid which partially fills said hollow cavity. The inner surface of said hollow cavity is essentially spherical. The tuned liquid damper further comprises first fluid damping means arranged within the essentially spherical cavity of the housing. In this way, a tuned liquid damper is provided which has a response which is constant and independent of the orientation of the tuned liquid damper. Damping means are provided in order to be able to control the damping effect of the tuned liquid damper. | 02-26-2009 |
| 20090126289 | DAMPING STRUCTURE - The present invention relates to a damping structure which is capable effectively damping vibration of a structure. The damping structure includes a vibration controlling medium fixed at a structure and vibrating with an amplitude greater than that of the structure upon vibration and a damper vibrating separately from the vibration controlling medium as a result of being loosely fitted into the vibration controlling medium or a damper supporter extended therefrom, and thus having a vibration frequency different from that of the vibration controlling medium. | 05-21-2009 |
| 20090139158 | CONFORMABLE WIDE WALL ANGLE - A wide wall angle useful in locations of seismic activity to support ceiling tile and grid tees of a suspended ceiling comprising an assembly of an elongated base angle and an elongated extension strip, the base angle having generally perpendicular legs integral with one another and intersecting at a longitudinally extending corner, one leg being adapted to be fixed against a wall with the corner down, and the other adapted to project horizontally from the wall, the extension strip having a face with greater than the width of the horizontal leg, the extension strip having a multiple layer construction, two layers of the extension strip being held together in close parallel relation by an intermediate web integral with the layers, at least portions of the two layers being arranged to frictionally engage at least a part of the horizontal leg of the base angle spaced from the corner such that the strip can be assembled on and frictionally retained on the horizontal leg of the base angle, the horizontal leg of the base angle being disposed between the two layers of the extension strip. | 06-04-2009 |
| 20100011681 | Shock Absorber - A shock absorber utilizes an internal passage design and cooperates with at least one flow-restricting member and elastic member to change the flow speed and displacement during the extension and retraction of the shock absorber, so as to make the extending and retracting speeds of the shock absorber different for buffering the shake wave to the house, thus reducing the force shaking the house in the earthquake. | 01-21-2010 |
| 20100269424 | TUNED MASS DAMPER - A tuned mass damper comprises a mass ( | 10-28-2010 |
| 20100293873 | FRICTIONAL DAMPER FOR DAMPING MOVEMENT OF STRUCTURES - The invention is a damper and a method for protecting buildings and similar structural systems from dynamic loading such as loading caused by earthquakes, strong winds or machine vibrations. More specifically, the damper is made from structural members being interconnected in frictional or visco-elastically dampened rotational joints. Due to the dampening of the joints, relative movement between the structural elements is dampened. In particular, the damper is useful for base isolation, e.g., in order to allow a building or a machine to move in a dampened movement relative to its foundation or in order to allow a cable stay of a cable stay bridge to move in a dampened movement relative to its fixation point on the bridge. | 11-25-2010 |
| 20120266547 | ACTIVE DYNAMIC VIBRATION ABSORBER - An active dynamic vibration absorber | 10-25-2012 |
| 20130326969 | STRUCTURAL DAMPING SYSTEM AND METHOD - A tuned mass damper may be formed using one or more rotary magnetic dampers ( | 12-12-2013 |
| 20140305049 | EARTHQUASKE-PROOF BARRIER USING BURIED RESONANT CYLINDERS - Disclosed are an earthquake-proof barrier for protecting a building against an earthquake, and more particularly, an earthquake-proof barrier using buried resonant cylinders capable of weakening seismic waves outside a building, instead of installing an earthquake-proof apparatus in a building. According to the earthquake-proof barrier using the buried resonant cylinders, buildings are not independently protected, but one district beyond the earthquake-proof barrier is protected. Thereby, magnitude of an earthquake can be reduced to a desired level without altering the building. | 10-16-2014 |
| 20140325922 | SYSTEMS AND METHODS FOR DAMPING BUILDING OSCILLATIONS - A fluid transport system for actively damping oscillations of a structure affixed to a ground surface is disclosed. The system includes a pipe defining a flow path, a driver in fluid communication with the pipe and configured to provide a fluid flow through the pipe, and a controller. The controller is programmed to send a fluid flow command signal in response to an event signal indicating an oscillation event. | 11-06-2014 |
| 20150345134 | DAMPING DEVICE AND VIBRATION CONTROL APPARATUS FOR STRUCTURE - A device for damping a transmitted vibration by the moment of inertia of a fly wheel and the adjustable resistance force of a viscous magnetic fluid to allow the viscous magnetic fluid exerts its property even under no external power source. A sleeve with an attached ball nut is disposed in a first cylinder so as to reciprocate. The reciprocating motion of the sleeve is converted into a rotational motion by a ball screw to rotate a fly wheel in a second cylinder and a generator rotating shaft. Between the fly wheel and the inner surface of the second cylinder, a sealed space is formed in which a viscous magnetic fluid is sealed. A magnetic field generating unit which generates a magnetic field running across the sealed space with the fly wheel serving as a part of a magnetic circuit is disposed on the inner circumference of the second cylinder. | 12-03-2015 |
| 20150361657 | VARIABLE STIFFNESS BRACING DEVICE - The present invention relates to a variable stiffness bracing device comprising: a rectangular frame ( | 12-17-2015 |
