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4875314 Connection system for preventing uplift of shear walls  
A structural connection system for resisting uplift loads on the shear walls for each level of a wood frames structure includes anchors for each level. The system, employed at least at the lateral...
4873798 Apparatus for suppressing vibration of structure  
An apparatus for suppressing vibration of a structure. The apparatus includes a tank adapted to be mounted in the structure and a chamber defining mechanism, arranged within the tank, for defining...
4872649 Liquid type mass damper with elongated discharge tube  
A new mass damper that avoids the formation of a higher-order resonance by utilizing the inertial resistance of a flowing liquid is disclosed. This damper solves the problem of an additional new...
4864785 Earthquake resistant mobile home support  
A mobile home support system is disclosed which uses a plurality of stepped elongated supports, preferably made of railroad ties secured together. The individual supports are placed beneath a...
4858738 System of auxiliary mass dampers to restrain the response of slender elastic structures to vibrations such as from earthquakes  
Structures subject to seismic or other vibrations, such as structurally flexible elements of electrical and mechanical power plants, are effectively damped to reduce stresses resulting from such...
4850268 Multi-purpose, mobile laboratory room  
A multi-purpose laboratory room for mobile applications. The room comprises a housing structure having an airtight laboratory unit and an entrance unit, an air-conditioning and exhausting...
4841685 Controllable damper  
Stress to a flexible structure in a dynamic environment is suppressed by controlling at least one variable parameter of an associated damper in accordance with sensed information as to movement of...
4835919 Impervious shelter made of modules  
An impervious shelter is made of tube-shaped modules fitted end to end. The invention pertains more especially to the junction between the facing ends of the modules. Each module has an outer...
4830927 Anti-seismic bearing and assembly of anti-seismic bearings  
An anti-seismic bearing made up of a plurality of rigid plates and viscoelastic flexible plates laminated alternately, said flexible plates being made of a material characterized by that the...
4823522 Energy absorbing and assembly for structural system  
An energy absorbing assembly in which a number of spaced, metallic plate-like elements are coupled together by end blocks and spacers clamped together so that the elements are generally parallel...
4807840 Tuned mass damping system and method  
A damping system for attenuating the transverse oscillation of a structure caused by external forces having a countermass attached to the structure by a spring and a coulomb damper. The parameters...
4805359 Method of applying floor vibration-damping work and vibration-damping floor device  
A method of applying a floor vibration-damping work and a floor vibration-damping device supporting horizontally displaceably respective supports points of the floor structure on a fixed floor and...
4801122 Isolator for seismic activity  
An apparatus for supporting an object on a base for isolating the object from movement of the base, typically an art object, instrument, case, or housing for projection during seismic activity....
4799339 Method of controlling building against earthquake  
A method of controlling a building against an earthquake according to the present invention comprises the steps of analyzing instantly the earthquake on the basis of data observed by earthquake...
4793105 Earthquake protection system  
A system for protecting a building against the forces generated by an earthquake. The superstructure moves horizontally along a system of movable plates provided at the interface between the...
4786341 Method for manufacturing concrete structure  
A method for manufacturing a concrete structure such as columns and beams with sufficient reinforcement in the shear strength to be durable against earthquakes, etc. A reinforcing member composed...
4782541 Earthquake protective bed  
A protective bed suitable for protecting an occupant or occupants during major catastrophies resulting in falling debris includes a canopy made of steel mesh which is resistant to penetration by...
4771581 Fluid support system for building structures  
A liquid support system for separating a building structure from its supporting foundation wall includes a trough-like member extending around the top surface of the foundation wall, an inverted...
4766706 Earthquake protection system for structures  
A system for protecting a building against the forces generated by an earthquake. The horizontal movement of the building superstructure relative to the foundation is adjustable to adapt its...
4766708 Shock and vibration resistant structures  
A shock and vibration resistant structure includes a frame having a plurality of substantially rectangular regions therein. A plurality of modular units are received in the regions. The units have...
4763457 Shock attenuating barrier  
A barrier is constructed from a plurality of cell-like elements interconnected to form a rigid barrier under normal circumstances. The linkages between cells provides a friction-brake force which...
4761925 Anti-seismic rubber bearing  
There is provided an anti-seismic rubber bearing made up of a laminate structure formed by bonding a plurality of rigid plates having stiffness properties and a plurality of flexible plates having...
4752436 Nuclear component horizontal seismic restraint  
A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end....
4744941 Antiseismic protection device for solid blocks  
Antiseismic support structure for the pile block of a fast neutron nuclear reactor.It comprises a concrete covering slab resting on the reactor building structure. The vessel and components of the...
4736701 Dynamic vibration absorber  
A vibration damping arrangement for a structural member including leaf springs extending horizontally from a vibration absorber body adapted to be attached to the structural member. A set of...
4736555 Free access type floor  
A free access type floor comprising a plurality of floor boards arranged on one and the same plane in a closely connected manner to form a secondary floor, engaging members provided at at least...
4735028 Earthquake-resistant, removable partition  
In order to seal an opening formed in a vertical wall, a removable partition is formed, which is constituted by at least two dry-stacked brick layers. Each layer is formed from several rows of...
4731966 Vibration energy absorber device  
A vibration energy absorber device includes a first fixing member fixed to a building bottom wall, a second fixing member fixed to a building foundation, a lead elastoplastic member having...
4727695 Building structure shock isolation system  
A building structure shock isolation system is disclosed incorporating aseismic bearings for positioning between major structural components of the building and between such components and the...
4726161 Earthquake isolating support  
Apparatus to isolate an object or equipment from earthquake motion comprises: (a) rollable bearing means supporting such structure for lateral motion generally parallel to a support; (b) and other...
4722154 Room unit for marine structure  
A room unit (1) and a method for the construction and the position mounting of the box-like room unit (1), for instance a cabin, a module assembled from room elements or the like. The room unit...
4720882 Antiseismic stop device for bridge and viaduct girder structures  
An antiseismic stop device for girder structures of bridges, viaducts and the like, in which said girder structure is simply resting on the piers, said device comprising separate stop means, one...
4718206 Apparatus for limiting the effect of vibrations between a structure and its foundation  
Apparatus for limiting the effect of vibrations between a building structure and its foundation is disposed between the foundation and the building structure. A plate is fixedly secured to a lower...
4718356 Exterior blast protection for buildings  
A system for protecting exterior building walls against damage from pressure waves generated by explosions on the building exterior. Exterior walls are constructed of multiple wall panels mounted...
4716695 Steel framing system for multi-story buildings  
A multi-story building structure in which steel elements, secured together in steel-to-steel contact form the bearing walls and transmit the entire static and seismic loads of the walls and floors...
4717288 Flex joint  
A flexible structural joint of "flex joint" for use in an articulated structure is disclosed. The articulated structure has a first section and a second section which are located along a...
4716696 Resilient pier and footing arrangement  
The invention relates to a pier and footing arrangement for storm prone and earthquake prone areas. According to the inventive concept, a flat bottom plate is used to be placed in a pre-dug hole....
4713917 Frictional energy absorbing device and/or methods of absorbing energy  
A cyclic shear energy absorber is described for absorbing energy imposed onto the absorber. The absorber consists of a hollow core filled with densely packed granular material. The granular...
4707956 Earthquake insulating building structure  
An earthquake-insulating building structure including a structure body and a foundation supporting the structure body, the foundation having a plurality of earthquake-insulating piles embedded...
4700932 Anti-impact safety apparatus for robot  
An anti-impact safety apparatus for a robot includes a buffer mechanism disposed between a swivel arm and a working arm of the robot. The buffer mechanism incorporates a converting mechanism which...
4697395 Preuplift technique of anchoring a cylindrical liquid storage tank for lateral loading  
Unanchored fluid storage tanks rely primarily on the weight of fluid resting on an uplifted portion of the base plate to balance seismically induced overturning moments. Local uplift is therefore...
4693045 Exhaust stack support arrangement  
A support arrangement for an exhaust stack includes an array of beam segments 31 which have their lower flanges 34 rigidly attached to a concrete foundation pad 32, their upper flanges 40 rigidly...
4687174 Device for centering and guiding a roller supporting a heavy component  
Device for centering and guiding a roller for supporting a massive component, incorporating, on each bearing face of the supporting components, two centering surfaces and at least one rack which...
4683691 Protective annular construction and method of manufacture  
A protective annular construction for protecting surface or subsurface facilities against shock. In one embodiment, the invention utilizes concentric slip formed concrete cylinders, at least...
4663898 Dome-shaped building structure  
An improved dome-type structure having a plurality of load bearing rib elements extending upwards from a base and meeting at a common vertex, a roof deck extending over and supported by these rib...
4662133 Floor system for seismic isolation  
A floor system for seismic isolation comprises a floor member disposed above a foundation, a plurality of supports for supporting the floor member in a manner to be movable in a horizontal...
4662142 Mounting device and method for making a dynamically stiff joint  
A mounting device provides a dynamically stiff joint between two structural members, such as a machine foundation and a building structure. One of the structural members is subject to dynamic...
4662126 Vibration resistant explosion control vent  
A burst panel assembly for normally covering a vent opening of structure which defines an area to be protected from the buildup of dangerously high internal pressures has two frangible panels...
4662426 Interlock forming member used in metal casting  
The subject of the invention is a one piece interlock forming member used in metal casting, comprising a tapered member adapted to fit in the match plate, which is used in the core or mold forming...
4651481 Progressive shock absorption system for reducing the seismic load of buildings  
The present invention relates to a system comprising of motion-damping sandwich elements and energy-absorbing steel mandrels arranged between the building foundation and the superstructure, where...