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8136317 |
Assembly for straightening a basement's wall
An assembly for straightening a basement's wall, the basement having a floor and being covered by joists which are spaced from each other on center distances to define interstitial cavities and are...
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8127904 |
System and method for tuning the resonance frequency of an energy absorbing device for a structure in response to a disruptive force
The invention is a system and method for automatically adjusting the resonance frequency of an energy absorbing device in response to a disruptive force. By configuring an energy absorbing device...
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8117788 |
Energy dissipating assembly for frame walls
Lateral motion devices are used in conjunction with relatively rigid shear assemblies to further dissipate shear forces on frame construction buildings. In one embodiment, the lateral motion device...
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8104236 |
Isolation platform
The present invention provides a platform for supporting various equipment and/or structures which assists in isolating such structure from vibrations external to the platform. Generally, the...
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8015760 |
Seismic isolation access floor assembly
An access floor assembly includes a base floor, a substructure mounted to the base floor, a bearing plate, formed with a first cavity, mounted to the substructure and disposed apart from the base...
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8011142 |
Sliding pendulum seismic isolator
A sliding pendulum seismic isolator (1) comprises a lower sliding element (2) provided with a concave surface (2a) facing upwards, an upper sliding element (3) provided with a concave surface (3a)...
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8001734 |
Moment frame links wall
A lateral bracing system having high initial stiffness and including yield links capable of effectively dissipating stresses generated within the lateral bracing system under lateral loads.
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7921604 |
Storm proof aluma-foam housing unit
An aluminum-foam structural housing unit that is storm-proof, self-contained, and built to withstand natural disaster conditions resulting from hurricanes, tornadoes, earthquakes, and fire, and...
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7886489 |
System for buffering horizontal acceleration acting on structural member and position returning unit
A position returning device rollers for absorbing a horizontal force acting on a structure are provided between a foundation and a structure. A force from an earthquake is absorbed as the rolling...
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7856765 |
Seismic damper
A seismic damper includes upper and lower brackets, and a link mechanism. The upper bracket is formed with an upper hole. The lower bracket is formed with lower and intermediate holes. The link...
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7856766 |
Seismic isolation device
To provide a seismic isolation device, even if a relative height between friction plates, which are laminated in a hollow part of a laminated rubber body, and the laminated rubber body changes at a...
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7814712 |
Shock suppressor
A shock suppressor has a first base, a second base, a sliding holder assembly and a connecting device. The first base has an elongated first sliding channel in a first direction. The second base is...
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7797886 |
Seismic damper
A seismic damper includes upper and lower brackets, and a link mechanism. The upper bracket is formed with an upper hole. The lower bracket is formed with lower and intermediate holes. The link...
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7774996 |
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...
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7765746 |
Tornado resistant dome house
A tornado resistant dome house. The shape of the dome house is a spheroid section, and is given by a formula. The dome house shell is made up of a plurality of tiles formed to conform to the shape...
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7757441 |
Apparatus for isolating and leveling a machine foundation
An apparatus for isolating and leveling a machine foundation with respect to a substructure of a building or the ground. The apparatus of the present invention provides an enclosure connectable to...
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7743563 |
Seismic energy damping system
A seismic energy damping system with plural redundancy for a building or structure subject to seismic perturbation (i.e., deflection of the building structure) includes a distributed plurality of...
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7716881 |
Shock suppressor
A shock suppressor has an upper base, a lower base and a connecting device. The upper base has a bottom and a top channel defined in the bottom along a first direction. The lower base corresponds...
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7707787 |
Damping device and method for setting natural frequency of damping body in the damping device
Installed on a top of a structure (1) is a base stand (11) against which damping body (3) movably rests via a linear guide mechanism (12). Mounted between the damping body (3) and the structure (1)...
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7584578 |
Seismic energy damping apparatus
A seismic energy damper includes a pair of structure members subject to relative motion during a seismic event, and a pair of friction washers each fixed to a respective one of the structure...
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7565774 |
Seismic isolation apparatus
A seismic isolation apparatus features damping characteristics equivalent to or better than prior art, without burdening the environment. In this seismic isolation apparatus, a cylindrical cavity...
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7547142 |
Self-centering sliding bearing
A bearing assembly having upper and lower bearing seats and a sliding load bearing member between the seats. The sliding member is fitted with an elastic self-centering element. The assembly in...
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7540117 |
Vibration isolation system for building
A vibration isolation system for building, comprising a vibration isolation layer, the vibration isolation layer including: an upper layer structure consisted of upper beams and/or slabs and...
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7530555 |
Damping assembly for a construction
A damping assembly includes a supporting base, a stainless steel layer having an arcuate slippery top face mating to the arcuate top face of the supporting base, a polytetrafluoroethylene layer...
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7513083 |
Rotating concentric holdown
A connection between a wall stud or post and an anchor bolt embedded in a concrete foundation, using a holdown connector that attaches to the anchor bolt and supports the wall stud or post above...
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7409799 |
Anti shock device
An anti shock device has a base plate and a top plate, at least one pair of support racks are mounted between the top plate and the base plate. At least one adapter is mounted between the support...
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7367075 |
Girder bridge protection device using sacrifice member
A girder bridge protection device. The girder protection device includes a sacrifice member having girders installed on an upper surface of a bridge seat of an abutment or pier to support a bridge...
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7340864 |
Elastic supporter, elastic support unit and seismic support unit using same
Elastic support units are provided to at least one of upper and lower track rails of a seismic isolation guide. The elastic support units include two elastic supporters that are superposed one over...
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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...
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7338035 |
Foundation shock suppressor
A shock suppressor has at least two sliding units stacked in an alternate manner, and each sliding unit consists of a moving base, a connecting base and at least one rod. The connecting base is...
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7290375 |
Seismic isolation access floor assembly
An access floor assembly includes a base floor, a substructure mounted to the base floor, a bearing plate, formed with a first cavity, mounted to the substructure and disposed at an elevated...
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7267319 |
Low-friction slide-plates for rotary machines
A mounting arrangement for use at an interface between a movable machine component and a stationary foundation includes a substantially planar foundation plate adapted for attachment to the...
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7243466 |
Anti-seismic system
The present invention provides a system and method for protecting buildings from damage due to seismic waves. The system comprises a bed of sand contained between two layers of polymer membrane,...
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7237364 |
Foundation shock eliminator
A foundation shock eliminator includes an upper block, a lower stationary base, an interconnecting assembly and an energy damping coating. The lower stationary base is mounted under the upper...
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7188452 |
Sleeved bracing useful in the construction of earthquake resistant structures
A buckling restrained brace includes an elongate, hollow sleeve, an elongate yielding core extending substantially through the length of the sleeve, and a buckling constraining element between the...
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7174679 |
A-frame shear assembly for walls
Lateral motion devices are used in conjunction with shear assemblies to further dissipate shear forces on buildings. In one embodiment, the lateral motion device is interposed between the shear...
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7107728 |
Apparatus for the storage of hazardous materials
The invention provides a stabilizing device for inclusion in a stack of containers in which hazardous waste is held, wherein the stabilizing device comprises a table for supporting a container in...
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7069158 |
System and method for analyzing structures subjected to catastrophic events
A computer-implemented system and method for analyzing a structure subjected to a catastrophic event. Based on linear elastic input data, the system automatically determines non-linear hysteretic...
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7028433 |
Aseismatic device
An aseismatic device applied to an overhead hoist transport (OHT) system in a fab has a spring pin and a positioning ball installed in a cavity of a first platform. The spring pin has at least a...
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7017312 |
Two-piece clinched plate tension/compression bracket
A two-piece bracket adapted to resist forces in both tension and compression. The tension/compression bracket is formed from stamped, plate steel and is preassembled by clinching or with structural...
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6966154 |
Earthquake protection consisting of vibration-isolated mounting of buildings and objects using virtual pendulums with long cycles
The invention relates to an earthquake protection system that is entirely immune to seismic activity. According to the inventive method buildings and other objects are supported by Virtual...
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6951083 |
Directional sliding pendulum seismic isolation systems with articulated sliding assembly
A bi-directional sliding pendulum seismic isolation system for reducing seismic force acting on a structure by sliding pendulum movements, each system comprising a lower sliding plate forming a...
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6874748 |
Active floor vibration control system
An active vibration control system for controlling excessive or unwanted vibrations in floors or other structures. The system has three main components: (1) velocity sensor w/signal conditioner;...
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6848223 |
Seismic cask stabilization device
An apparatus and method for stabilizing a spent nuclear fuel containment cask so as to prevent tipping under design basis earthquake conditions. In one aspect, the apparatus comprises a lamina and...
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6826873 |
Aseismic system
The Improved Aseismic System of the present invention isolates a structure from seismic forces, and wind forces and seismic forces combined. During an earthquake the structure will slide on seismic...
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6820380 |
Structure of an anti-shock device
An improvement in the structure of an anti-shock device utilized for buildings, important structures and bridge structures that are made of a base, a carrier, a slide block, and a plurality of...
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6799400 |
Earthquake shock damper
An earthquake shock damper includes two positioning plates, two fixing plates and multiple energy absorbing plates securely sandwiched between the two positioning plates and having the two fixing...
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6739568 |
Apparatus for isolating and leveling a machine foundation
An apparatus for isolating and leveling a machine foundation with respect to a substructure of a building or the ground. The apparatus of the present invention provides an enclosure connectable to...
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6675539 |
Roof seismic motion-absorbing gap cover
A seismic roof motion-absorbing gap cover assembly includes an elongated y-axis slideway affixed to a building unit B on one side of the gap and extending parallel to the gap and a y-axis slider...
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6631592 |
Fail-safe device
The invention concerns fail-safe devices for use in reinforced concrete structures. The device (1) comprises a link (8) of high tensile strength material and first (2) and second (3) end regions....
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