Abstract: A fastener system for connecting and releasing two elements. The system comprises a rod-shaped product with a male part and a female part, in which the male part is sized to be receivable in the female part. Either the male or female part is provided with a screw thread and the other is provided with at least one tooth such that, when the male and female parts are assembled, the tooth is engaged with the screw thread. The part equipped with the tooth comprises a strip extending in the longitudinal direction thereof, so that when the male part is pressed into the female part, the tooth is elastically distorted axially onto the screw thread, and the tooth shape and the screw thread prevent axial movement in the opposite direction.

Abstract: A device for connecting together flat elements that are lying in a plane with at least one edge of a first of the flat elements adjacent at least one edge of each of second and third flat elements. The device is connected to the first flat element and comprises at least two hook-shaped organs, a first of which cooperates with a first contact on the second flat element and a second of which cooperates with a second contact on the third flat element. Each of the first and second hook-shaped organs is movable between a first position in which the flat elements are released from each other, and a second position in which the first and second hook-shaped organs engage the first and second contacts to cause edges of the first flat element to be pressed against edges of the second and third flat elements.

Abstract: A device for connecting together flat elements that are lying in a plane with at least one edge of a first of the flat elements adjacent at least one edge of each of second and third flat elements. The device is connected to the first flat element and comprises at least two hook-shaped organs, a first of which cooperates with a first contact on the second flat element and a second of which cooperates with a second contact on the third flat element. Each of the first and second hook-shaped organs is movable between a first position in which the flat elements are released from each other, and a second position in which the first and second hook-shaped organs engage the first and second contacts to cause edges of the first flat element to be pressed against edges of the second and third flat elements.

Abstract: A system (2, 4) for connecting releasing two elements (1) with each other, comprising a rod shaped product with a male part (4) and a female part (2) with a round section, wherein this product is integral or connectable with each element, wherein one of the parts, the male or female part, is provided with a screw thread (6) and the other part is provided with at least one protruding tooth (9), which, when the male and female parts are fit into each other, is engaged into the screw thread, wherein at least the part provided with the protruding tooth comprises a strip extending in the longitudinal direction of the part on which the protruding tooth is arranged, in such a way that, when the male and female parts are being pressed into each other, the tooth may be pressed through an elastic distortion axially onto the screw thread, and the tooth shape and the screw thread are chosen in such a way that an axial movement in the opposite direction is prevented.

Abstract: A building system comprising a plurality of individual building elements and connecting mechanisms, wherein each of the building elements has an upper and a lower surface which are substantially parallel to each other and at least one opening extending from the upper surface to the lower surface, and each building element is adapted for alignment with respect to an opening in another building element. Each connecting mechanism is dimensioned to fit within and extend through an opening in a building element and interconnect a plurality of building elements and deformation members. Deformation members are positioned between a lower surface of a building element and a connecting mechanism of another building element, and deformable by a predetermined force to induce a stress in the connecting mechanism of a building element such that it is pressed with a second predetermined force to another building element.

Abstract: A building system comprising a plurality of individual building elements and connecting mechanisms, each of said building elements having an upper and a lower surface which are substantially parallel to each other and having at least one opening extending from the upper surface to the lower surface, each of said building elements being adapted for alignment with respect to an opening in another building element, each of said connecting mechanisms being dimensioned to fit within and extend through an opening in a building element, each of said connecting mechanisms interconnecting a plurality of associated building elements and a plurality of deformation members, said deformation members being positioned between a lower surface of a first building element and a connecting mechanism of a second building element, said deformation member being deformable by a predetermined force to induce a stress in said connecting mechanism of said first building element such that each of said first building elements is pressed

Abstract: Building system comprising individual building elements (1), each element having an upper and a lower surface which are substantially parallel to each other and each building element having at least one opening (10, 11) extending from the upper surface to the lower surface, the building elements being such that they can be positioned on top of each other so that openings of different elements are aligned with respect to each other, characterized in that in each opening a connecting element (30) can be placed by means of which the building element belonging to it can be connected with a predetermined pressure to the building element located immediately below the first building element.