received by the International Bureau on 01 February 2019 (01.02.2019)

Claim 1 : A modular structure, for immediate shelters, wherein it is also secure, unlimited in changeability, prismatic expansion, combination, detachment, and merging in the six Cartesian Coordinate directions at the thresholds (up, down, front, back, right and left), characterized in that, there is no need for expert manpower to erect the structure.

Claim 2: A modular structure, according to claim 1 ; characterized in using a cutting pattern wherein any geometrical space with a point of symmetry and a plane of symmetry, such as sphere, cube, octahedron and its derivatives, relative to all three of the Cartesian Coordinate planes, result in 1/8 of the space, completely identical to each other.

Claim 3: A modular structure, according to claim 2; characterized by using a sphere among other said geometrical spaces, as according to its geometrical definition, all the particles on its outer shell are exactly at equal distance from its center point.

Claim 4: A modular structure, according to claim 3 or 2; wherein a ¼ of a hemisphere's shell as a single module, is considered to be the bases of constructing the modular structure wherein the possibilities of changeability, prismatic expansion, combination, detachment, and merging in the six Cartesian Coordinate directions, which regenerates a complete sphere by means of 8 times repetition, characterized by the least number of modules for the highest possible combinations.

Claim 5: A modular structure, according to claim 4; wherein, said ¼ of a hemisphere's shell is divided symmetrically from its center point to 3 smaller identical quadrilaterals, by the repetition of which for 3 times as one module, a ¼ hemisphere's shell is regenerated, and by the collaboration of this module with another 4 different modules, all the required elements for changeability, prismatic expansion, combination, detachment, and merging in the six Cartesian Coordinate directions at the thresholds, for all manner of possible applications, are at hand.

Claim 6: A modular structure, according to claim 4; wherein, said ¼ of a hemisphere's shell is subdivided to 3 smaller modules in order to make carrying and completing the assembly possible for one unskilled person, whereas the same dividing pattern is adaptable for cutting the ¼ of a hemisphere shell module to more and more pieces, at times when a larger structure is being built, or when there is a need for smaller modules.

Claim 7: A modular structure, according to claim 6; further, the 3 piece module, comprises a hexagonal module in the center with one duplication, a trapezoidal module with 6 times duplication on each side of the said hexagonal, and a triangular module with 3 times duplication on each of the 3 corners, regenerate a ¼ hemisphere space.

Claim 8: A modular structure, according to claim 7; wherein, prismatic expansion takes place between the 2 cross-sections of the sphere, in the form of a part of a cylinder, along each of the Cartesian coordinate system axes, and therefore, in the said structure with 3 modules, a cylindrical square module is positioned along the triangular module, a cylindrical rectangular module is placed along the trapezoidal module, and a door-frame module follows the threshold module, in order to make a prismatic cylindrical module possible along each spherical module.

Claim 9: A modular structure, according to claim 7; a threshold corner module comprises the merging of a trapezoidal module and a triangular module with each threshold corner, wherein, each threshold corner module lies at the corner of each ¼ hemisphere, replacing the two said modules, along the crossing line of the 2 symmetry planes, so that by 4 times duplication a complete threshold is produced, and in the case prismatic expansion, the possibility of variation in height and width is achieved.

Claim 10: A modular structure, according to claims 5 or 7; wherein prismatic expansion is possible in any direction of the Cartesian coordinates, for which a flat square module is used along the cylindrical square module.

Claim 1 1 : A modular structure, according to any of the claims 6 to 10; wherein, all the modules of the structure posses bent edges around them, at 90 degrees to the surface of the module, and directed towards the center of the sphere or the central axis of the cylinder (in prismatic modules), characterized in that, these narrow edges are the means of attaching the modules to each other, and on the other hand, they are the elements of rigidity in the structure. Claim 12: A modular structure, according to claim 1 1 ; attachment of the modules is characterized by a quick-release clips which fastens the bent edges of the modules together tightly, wherein a set of holes on both sides of the clips and the bent edges of the modules, take a half-turn locking pin in order to prevent any possible slipping of the modules.

Claim 13: A modular structure wherein by the least number of modules, all the hurdles and restrictions of the past, in the field of immediate and secure accommodation, are rectified.

Claim 14: A modular structure, according to claim 13; wherein the restriction of variability in implementing the immediate and secure accommodation complexes are lifted, whereby using only one module, a complete sphere for different applications such as water, fuel, or sewage tank is produced, and also by employing a threshold module together with 3 prismatic expansion modules, from only a single door unit to multi -level accommodation complexes, on and under the ground, from shelters and storage to special applications like under-water accommodation, or a watch tower, is made possible.

Claim 15: A modular structure, according to claim 13; wherein the restriction of the need for expert manpower in erecting the immediate and secure accommodation complexes is rectified simply by a manual assembly, which could be done by every unskilled person who is in need of a shelter.

Claim 16: A modular structure, according to claim 13; wherein the time restriction for erecting the immediate and secure accommodation complexes is eliminated, especially in emergencies, due to the quick assembly characteristic of the structure, whereby at the time of, or prior to disasters, the immediate and secure accommodations could be readily set up by any person who is in need of a shelter.

Claim 17: A modular structure, according to claim 13; wherein the place restriction for erecting the immediate and secure accommodation complexes is rectified, by the lightweight plates and the compact structure, capable of being assembled and dismantled repetitively, for rescue and relief camp sites in disaster-stricken or war-torn areas, and setting up schools or medical centers in far, isolated, and difficult to reach locations.

Claim 18: A modular structure, according to claim 13; wherein the problem of achieving the highest possible strength in the structure while using the least amount of material and dead weight is best addressed by taking advantage of the inherent features of the spherical spaces, such as sturdiness under pressure and aerodynamic, which effectively reduces the total weight of the product, owing to the fact that it is produced with the minimum amount of material, and at the same time, offering the best resistance against natural disasters, such as earth-quake, tornadoes, hurricanes, hailstorm, heavy downpours, avalanche, and man-made disasters, such as the explosion waves and tremors and so on.

Claim 19: A modular structure, according to claim 13; wherein the problems of safety and accommodation for the rescue and relief personnel, and the security crew, on one hand, and the crowd control and the security of the medical centers, quarantines, refugee and detention camps, on the other, is attended to by creating closed and gated structure complexes, in a way that the entrance and the exit gates could be managed, monitored and policed, whereby the disaster survivors or the people in need of medical attention could be seen to in an orderly manner.

Claim 20: A modular structure, according to claim 13; wherein the restrictions of erecting an immediate and secure hospital in times of emergency is rectified simply due to the isolatable and sterilizable features of the structure, to the point that operating rooms and patient recovery rooms and so on could be erected, characterized by taking advantage of the spherical ceiling for hanging all the necessary equipments and eliminating the tripods and stands, which allow the better use of the space in any room, such as operating rooms, dentist rooms, injection rooms and so on.

Claim 21 : A modular structure, according to claim 13; wherein the budget restriction in implementing the immediate and secure accommodation complexes is rectified by employing a spherical structure and hence using less material to achieve the desired strength, which in turn brings about the most economical pre-production structure (modeling and molding and so on) with the least number of modules, and also glass- fiber production being one of the least expensive in terms of expert manpower, which again makes for a more economically viable structure to produce.

Claim 22: A modular structure, according to claim 13; wherein the restrictions in changing the application and also service and maintenance in the immediate and secure accommodation complexes is eliminated simply by rapid removing and attaching of the pieces of the structure, whereby opening and closing of the quick-release clips and pins, any part of the structure is removable for service and maintenance, exchange, or change of application.

Claim 23; the production process of the structure is based on model-making from the surface of a sphere, true to its absolute geometrical definition, and is divided by employing geometrical drawing tools, and also the final product is not limited to any one material, and any plate from the structure can be made according to the application, the desired thickness and the material, from glass-fiber for lightness and resistance under pressure, hardened glass for aesthetic and light transmitting features, to various metallic sheets for extra strength and high speed in mass production (by adopting pressing method).

Claim 24: the production process, according to claim 23; wherein a modular structure for immediate and secure accommodation, made in the form of a sphere, true to its absolute geometrical definition, in order to take advantage of its unique features such as resistance to high pressure, aerodynamic, and the capability of being divided by a cutting pattern of 3 perpendicular planes in the Cartesian coordinate system, which allows the prismatic expansion, combination, detachment, and merging in the six Cartesian Coordinate directions at the thresholds, with the least possible number of modules, far beyond and distinguished from the prior art, wherein the simulation of the sphere was in an approximate way and it was done by calculating the sides and the angles between the polygons, the cutting of the elements of the structure and the joint attachments between the constituent sides, and for these reasons the probability of inaccuracies in calculations and the restrictions in the estimation of the irrational numbers, probable inaccuracies in cutting the sides, the challenge of assembling the parts of the structure, the expenditure of time and energy by the expert manpower, made for a great deal of difficulty in the mass production of those types of structure.