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5971374 Seismic damper for high voltage breakers and disconnect switches  
Disclosed is a seismic damper for ground equipment such as high voltage breakers and disconnect switches. The disclosed seismic damper is reactive to low frequency seismic disturbances and...
5971347 Vibration damper  
A disturbance-proof device connected between two vertically spaced beams for absorbing shocks upon a disturbance, includes a flat top plate, a flat bottom plate, and a plurality of flat supporting...
5967216 Door reinforcement apparatus  
A door reinforcement apparatus for mounting on the interior side of various types of doors, whether side opening or vertical opening, combining ease of use and simplicity of design with added...
5964066 Earthquake-proof foundation  
An earthquake-proof foundation includes post trunk portions supported on separate post root portions. In an embodiment, fracturable struts and a cushioning member also are present to support the...
5956907 Tornado escape capsule for trailer homes  
A tornado escape capsule 10 for a house trailer 100 having a structural framework 101 which defines an interior compartment 102 dimensioned to releasably receive the escape capsule 10 which is...
5950376 Fireproofing  
A fire proofing assembly with friction sliding surfaces to accommodate wide horizontal seismic isolator movements placed around seismic isolators and in partitions at the perimeter of isolation...
5946867 Modular earthquake support for raised floor  
A seismic support module for supporting communications equipment on a raised floor includes a plurality of anchoring feet secured to the structural concrete floor and a plurality of support...
5946866 Modular damper  
A modular damper which comprises one or more individual damper elements which are mounted into the damper structure. The dampers are useful in damping structures such as buildings, bridges, etc.
5946865 Dynamic building support structure and method for building the same  
An above-surface topple-able and self-righting dynamic building support structure having an external loadbearing shell including a bottom base and upwardly and outwardly sloping curved sidewalls...
5941029 Seismic fixture clamp  
A seismic fixture clamp enables light fixtures and the like to be securely affixed to the T-bars of a suspended ceiling system, thereby ensuring that the fixtures do not separate from the T-bars...
5934027 Earthquake resistant building structure employing sandbags  
The method of combining barbed wire and conventional bags to create structures includes the steps of: providing a plurality of bags; filling the bags with a predetermined mixture of organic,...
5934028 Toggle linkage seismic isolation structure  
A toggle linkage for incorporation into a frame of a structure, such as a building, including a first link having a shock absorber therein, a first end on the first link connected to a first area...
5934029 Base isolator having mutually eccentric rotators  
A base isolator has four base isolation units placed at four corners between a floor slab and a floor plate. Each base isolation unit has a middle plate, a lower support body which is rotatable in...
5927019 Earthquake-resistant door structure and an earthquake-resistant device  
Disclosed are improvements in earthquake-resistant devices and earthquake-resistant doors. An earthquake-resistant device according to the present invention comprises a stationary frame and a roll...
5924261 Method and apparatus for damping structural vibrations  
The damped structural member includes a structural member and granular material in intimate contact with the member. In one embodiment the granular material is lightweight and has a bulk specific...
5918339 Antiseismic energy dissipator for structures such as viaducts and the like  
An energy dissipator for interposition between parts of a structure, for example, between a support structure and a deck of a viaduct, protecting the structure in the event of an earthquake in an...
5915508 Tuned mass damper  
An apparatus for damping dynamic response in a primary structure in one, two or three dimensions, includes a secondary mass, and a spring and a viscoelastic element, the spring and viscoelastic...
5915676 Lever-type frictional resistance force variable system  
The present invention provides a lever-type frictional resistance force variable system comprising an arm whose upper end is rotatably supported by an upper beam; a supporting member which is...
5913503 Aseismatic mount for exhibiton of articles and showcase equipped with aseismatic mount  
An aseismatic mount for exhibition of articles comprising a lower mount frame, a middle mount frame, an upper mount frame for mounting exhibition articles thereon, aseismatic mount having rollers...
5913794 Ductile steel beam-to-column connection  
A ductile steel beam-to-column connection is connected between an H-beam and a column surface. The H-beam has a pair of flange plates and a web plate positioned between the flange plates, a...
5904025 Method for reinforcing a structural frame  
A shear resisting member of a frame structure is formed from four triangular cross-section beams, each beam or stud formed from a single piece of cold formed sheet steel which is bent lengthwise...
5904010 Elastomeric seismic isolation bearing and method  
A fiber reinforced elastomeric seismic isolation bearing and method protects structures and their contents from the damaging effects of earthquakes. The bearing is a block of a specially designed...
5884440 Seismic isolation device  
A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are...
5881507 Integrated horizontal and vertical seismic isolation bearing  
A seismic isolation bearing device is disclosed in which a laminated elastic rubber-steel bearing adapted to isolate horizontal seismic loading cooperates with a vertical isolation device...
5876006 Stud mounting clip  
An improved stud mounting clip has a first bracket component and a second bracket component. The second bracket component is used to support outer wall components or panels and is fixed with...
5875589 Structures having damped floors and a method of damping floors  
A method of damping floor vibrations and structures having damped floors is provided. Damping article(s) are attached to structural floor (A) (at a floor attachment location) and to at least two...
5868894 Method for producing cast-in-place flexible joined-together constructional structures and buildings  
A method for producing cast-in-place flexible joined-together constructional structures and buildings comprises applying to precleaned mating surfaces of the constructional structures and...
5867951 Seismic isolation sliding bearing for structure  
A seismic isolation sliding bearing for a structure, is made up of a dish 1 having a conical concave surface having a predetermined inclination or a spherical concave surface in its central...
5867947 Folding pyramidal structure for protection in case of earthquakes  
The invention comprises a folding pyramidal structure in which one or several people can be introduced, being designed to bear extreme loads derived from collapsing of the building provoked by...
5867952 Aseismic support structure  
An aseismic support structure which includes a fixed part which is attached to a stationary floor, an equipment connection part for holding part of the equipment and a moving part coupled to the...
5862639 Earthquake, wind resistant and fire resistant pre-fabricated building panels and structures formed therefrom  
An earthquake, fire and wind resistant pre-fabricated building panel comprises a plurality of frame members. The frame members are connected together to form a frame lying in a frame plane, the...
5862638 Seismic isolation bearing having a tension damping device  
The present invention is directed to a seismic isolation bearing having an ultimate translational distance and capacity for supporting an upper structure on a lower structure, comprising a load...
5845438 Building damper apparatus  
Brace apparatus for bracing a building or other structure and for applying damping forces to the structure during seismic disturbance includes a slider member slidably mounted on the structure. A...
5845450 Bracing system  
A bracing system for bracing a masonry basement wall of a building against inward buckling and cracking due to hydrostatic pressure. The bracing system includes a vertically disposed I-beam...
5842312 Hysteretic damping apparati and methods  
A damping apparatus and method uses one or more tension elements fabricated from shape memory alloy to cycle through a superelastic stress-strain hysteresis to provide energy dissipation. The...
5833038 Method and apparatus for broadband earthquake resistant foundation with variable stiffness  
An earthquake resistant foundation based on the method of longitudinal wave filtration by periodic or quasi-periodic septate waveguides. The generic septate waveguide comprises either a series of...
5833398 Dynamic self-compensating volume deformation support system  
A dynamic, self compensating constant volume deformation support system includes a sealed constant volume containment chamber including a base and a rigid peripheral wall; a load-carrying...
5832679 Apparatus for bracing a structural component against sway and seismic disturbances  
Apparatus for bracing a structural component against sway and seismic disturbances includes a strip structure having attachment portions for attaching the strip structure to a support and a...
5832678 Seismic portal  
Portal apparatus (40) is provided for interconnection between adjacent first and second structures (32, 34) in order to maintain operative communication between the structures (32, 34) under...
5829216 Seismic facade support  
A support for connecting a facade to at least one and preferably two buildings permits limited movement of the facade during seismic disturbances. The support includes a coupler presenting a...
5819484 Building structure with friction based supplementary damping in its bracing system for dissipating seismic energy  
A building structure includes one or more friction spring energy dissipating units installed as part of its bracing system, each unit including surfaces in frictional contact for dissipating...
5815999 Method and apparatus for strengthening frame buildings  
A method and apparatus for strengthening a frame building with extension rebars clamped to the foundation rebar and extending between the studs and through the double plate between the rafters,...
5816559 Seismic isolation device  
A seismic isolation device comprises a floor body which is arranged on a structural floor and to which an object of seismic isolation is mounted, a first restoring member disposed on the...
5815543 Seismic support with clearance gap and yieldable member  
In a nuclear reactor including a reactor vessel and a core shroud disposed within the reactor vessel in laterally spaced relation, a seismic support includes a spacer extending between laterally...
5813650 Aseismic support structure  
Disclosed is an aseismic support structure having one end secured to a fixed floor and another end connected to a subject structure placed on a floating floor. The aseismic support structure...
5813175 Apparatus and method for proctecting building from earthquakes  
Building walls are mounted to the frame of a building by using a plurality vibration absorbers, and therefore vibrations to the building are barely transmitted to the walls. The occurrence of...
5806250 Multidirectional mechanic hysteresis anti-seismic device for insulating the bases of constructional systems having high matual displacements  
A multidirectional antiseismic device dissipates mechanical energy and limits loads; it can be used to connect structural sub-systems or insulate at the base entire structures, especially in cases...
5800078 Earthquake attenuating apparatus  
An earthquake attenuating apparatus is located adjacent to a fault line for reducing the intensity of a potential earthquake. The apparatus includes a vibration generator which is located adjacent...
5799924 Replicated-in-place internal viscous shear damper for machine structures and components  
A novel means for providing an internal damping mechanism for a system with structural load supporting members that may be subject to time-varying loads, where the structure's structural members...
5797228 Seismic isolation bearing  
A seismic isolation bearing including a top load plate (11A) for securing the bearing to a structure to be supported, a lower load plate (11B) for securing the bearing assembly to the foundation,...