Abstract: A tsunami-wave structure is provided for installation in the bottom of the sea/ocean in the near-shore area which is exposed to the air at the time of a low tide that precedes the arrival of tsunami. Normally, the structure is immersed in water and when exposed to air before arrival of the tsunami wave assumes a tsunami-wave dampening position under the effect of its own gravity. This is achieved by making the structure in the form of a two-lever mechanism having two lever arms separated by a fulcrum point with a counterweight attached to the end of one the lever arms and a tsunami-wave breaker pivotally connected to the end of the other lever arm so that when the structure is exposed to the air the tsunami-wave breaker is turned down and allows the counterweight to outweigh the tsunami-wave breaker and to raise it to the operation position.

Abstract: Proposed is a floating platform structure for use on the surface of the ocean in equatorial regions where a strong eastward Cromwell current exists below the westward surface current. In the present invention, the forces developed by these two opposite currents are used for maintaining the floating structure in a stable geographical position that may be important, e.g., for launching a satellite-carrying rocket. The structure contains a rigid three-dimensional frame, which is immersed to the depth of the Cromwell current and carries floating bodies that experience the effect of the Cromwell current for counterbalancing the dragging force applied to the structure in the opposite direction from the surface current. Vertical positions of the floating bodies are adjustable by a mechanism, the operation of which is controlled on the basis of signals obtained from GPS, which locates the geographical position of the floating structure.

Abstract: Beach chair with sun protective device with a folding beach chair frame made of tubular metal and water resistant fabric and a pair of arm supports, a sun shade mounted on a spring retractable roller, a shade attachment bar, a pair of shade attachment hooks, a pair of back extension rods and a pair of leg extension rods. The back extension rods are extendable from the back support tubes of the beach chair frame. The leg extension rods are extendable from the rear leg support tubes of the beach chair frame. The roller and the shade are mounted to the back extension rods so that when a user extends the back extension rods and the leg extension rods, he or she can pull out the shade from the spring roller and attach the shade to the shade attachment hooks to form an overhead sun shade.

Abstract: The floating platform of the invention is intended for supporting industrial, commercial, cultural, and dwelling structures and is suitable for deployment in shallow as well as in deep waters, The platform is assembled from prefabricated hollow structural elements in such a way that the unified center of masses of the loads that consist of a plurality of arbitrarily distributed loads of different masses supported by the platform is always maintained in the same position whereby the platform is always maintained in a horizontally counterbalanced position. This is achieved by locally adjusting the buoyancy of the structural elements. Furthermore, the loads are positioned on the platform so that moments created by these loads relative to the aforementioned unified center of masses are equal. This allows maintaining the loads on the platform in equilibrium.

Abstract: A vehicle cover made from a thin flexible material such as silk, which is provided with a plurality of transversely arranged resilient strips of metal or plastic. Pulling cords are threaded through the holes formed on the ends of the resilient strips so that when the cords are pulled in the opposite directions or when one ends of the strips are fixed and the other ends are pulled, the resilient strips are curved or buckled upward stretching the web and forming a dome-like canopy above the vehicle roof for protection of the vehicle from sun rays or precipitations. After the resilient strips are deformed, the cords are clamped together and the ends of the cord bundles are locked to the vehicle body, e.g., by hooks. The cover of the invention can be easily wound into a roll.

Abstract: A chair, preferably a beach chair, equipped with a simple, foldable, and lightweight sun-shading device that is integrally connected with or built into the chair and, when not in use, is hidden inside the body of the chair. The sun-shading device comprises retractable rods telescopically fitted into hollow tubular members of the chair frame and strips retractable from the armrests of the chair with cords. The extreme ends of the rods and strips are connected by cords that are tensioned when the rods and the strips are retracted to a working position of the sun-shading device. The cords are used as guides for positioning the sun-shading blind that can slide along the cords into the required shading position over the chair's occupant.

Abstract: A chair, preferably a beach chair, equipped with a simple, foldable, and lightweight sun-shading device that is integrally connected with or built into the chair and, when not in use, is hidden inside the body of the chair. The sun-shading device comprises retractable rods telescopically fitted into hollow tubular members of the chair frame and strips retractable from the armrests of the chair with cords. The extreme ends of the rods and strips are connected by cords that are tensioned when the rods and the strips are retracted to a working position of the sun-shading device. The cords are used as guides for positioning the sun-shading blind that can slide along the cords into the required shading position over the chair's occupant.

Abstract: The floating platform of the invention is intended for supporting industrial, commercial, cultural, and dwelling structures and is suitable for deployment in shallow as well as in deep waters, The platform is assembled from prefabricated hollow structural elements in such a way that the unified center of masses of the loads that consist of a plurality of arbitrarily distributed loads of different masses supported by the platform is always maintained in the same position whereby the platform is always maintained in a horizontally counterbalanced position. This is achieved by locally adjusting the buoyancy of the structural elements. Furthermore, the loads are positioned on the platform so that moments created by these loads relative to the aforementioned unified center of masses are equal. This allows maintaining the loads on the platform in equilibrium.

Abstract: A protective cover for a vehicle comprising a sheet or a web of a flexible material that possesses a property of buckling or curving in the upward direction from the vehicle with the formation of a canopy-type shield for protecting the vehicle from direct sun rays, birds' droppings, etc. The sheet has a length exceeding the length of the upper surface periphery of the vehicle so that the upwardly curved canopy is formed either by applying two oppositely directed forces to the opposite ends of the sheet or by prestressing the sheet. The sheet can be made from plastic or a fabric that incorporates springing metal strips that tend to curve upward when they are in a free state. The sheet can be conveniently stored in wound state in a cylindrical cassette. Storage of the flexible material in a wound state enhances the property of bucking or curving when the sheet is withdrawn from the cassette.

Abstract: A protective cover for a vehicle comprising a sheet or a web of a flexible material that possesses a property of buckling or curving in the upward direction from the vehicle with the formation of a canopy-type shield for protecting the vehicle from direct sun rays, birds' droppings, etc. The sheet has a length exceeding the length of the upper surface periphery of the vehicle so that the upwardly curved canopy is formed either by applying two oppositely directed forces to the opposite ends of the sheet or by prestressing the sheet. The sheet can be made from plastic or a fabric that incorporates springing metal strips that tend to curve upward when they are in a free state. The sheet can be conveniently stored in wound state in a cylindrical cassette. Storage of the flexible material in a wound state enhances the property of bucking or curving when the sheet is withdrawn from the cassette.