Abstract: The present invention relates to a modular ramp constructions that facilitate the passage of objects over obstacles on a surface such as a doorstep or a flight of stairs. Specifically the present invention relates to a construction that facilitates the passage of a wheelchair or other appliances used by physically handicapped persons over such obstacles. The construction comprises wedge elements (1) that can be adapted to the given dimensions and requirements of a ramp construction, to which purpose the length of the wedge elements (1) can easily be shortened and where the wedge elements (1) are provided with means (6) for releasable attachment to adjacent tile elements (8) of the modular ramp construction, thereby making it possible quite easily to assemble and afterwards dismantle the construction when it is to be adapted to another application.

Abstract: A cooling roof construction comprising a substantially horizontal roof having a weatherproof membrane, and where a perforated tile layer is arranged a distance above said membrane, where the space between the membrane and the perforated tile layer is connected by at least one conduit to an outside ambient space.

Abstract: The present invention relates to a modular ramp constructions that facilitate the passage of objects over obstacles on a surface such as a doorstep or a flight of stairs. Specifically the present invention relates to a construction that facilitates the passage of a wheelchair or other appliances used by physically handicapped persons over such obstacles. The construction comprises wedge elements (1) that can be adapted to the given dimensions and requirements of a ramp construction, to which purpose the length of the wedge elements (1) can easily be shortened and where the wedge elements (1) are provided with means (6) for releasable attachment to adjacent tile elements (8) of the modular ramp construction, thereby making it possible quite easily to assemble and afterwards dismantle the construction when it is to be adapted to another application.

Abstract: Element to prevent slipping on surfaces, where the surfaces are provided with a plurality of apertures, characterized in that the element comprises a base plate, and that a plurality of towers extend upwards from said base plate, where the towers have a cross section at least at an upper part, corresponding to the shape of the apertures in the surface, and that the towers are arranged on the base plate in a pattern corresponding to the pattern of the apertures in the surface.

Abstract: The invention relates to a rotor for a positive displacement rotary pump. The rotor comprises a hub with an aperture and a center axis through aperture and at least 2 lobes radially extending from hub and in a direction essentially perpendicular to the axis of hub. The rotor comprises a core of a first polymer material and a cover of a second polymer material, which second polymer material has a hardness which is lower than the first polymer material. The first and the second polymer materials are connected to each other. The hub or the major part of the hub is preferably provided by the core, whereas at least a part of the lobes is provided by the cover. The invention also relates to a method of providing the rotor and a pump comprising the rotor.

Abstract: The present invention relates to a system for constructing tread surfaces comprising polygonal elements (1) where each element has a top surface and a number of substantially straight side edges arranged perpendicular to the top surface along the periphery of said top surface and that all side edges (2) are provided with a number of receiving openings (3) each opening adapted to receive and maintain a connector member, and that said elements (1), furthermore, along one or more of said side edges (4) are provided with one or more integrated and protruding connector members (5) which each are adapted to fit into said receiving openings (3).

Abstract: Element to prevent slipping on surfaces, where the surfaces are provided with a plurality of apertures, characterised in that the element comprises a base plate, and that a plurality of towers extend upwards from said base plate, where the towers have a cross section at least at an upper part, corresponding to the shape of the apertures in the surface, and that the towers are arranged on the base plate in a pattern corresponding to the pattern of the apertures in the surface.

Abstract: The present invention relates to a system for constructing tread surfaces comprising polygonal elements (1) where each element has a top surface and a number of substantially straight side edges arranged perpendicular to the top surface along the periphery of said top surface and that all side edges (2) are provided with a number of receiving openings (3) each opening adapted to receive and maintain a connector member, and that said elements (1), furthermore, along one or more of said side edges (4) are provided with one or more integrated and protruding connector members (5) which each are adapted to fit into said receiving openings (3).

Abstract: The invention relates to a rotor for a positive displacement rotary pump. The rotor comprises a hub with an aperture and a centre axis through said aperture and at least 2 lobes radially extending from said hub and in a direction essentially perpendicular to the axis of said hub. The rotor comprises a core of a first polymer material and a cover of a second polymer material, which second polymer material has a hardness which is lower than the first polymer material. The first and the second polymer materials are connected to each other. The hub or the major part of the hub is preferably provided by the core, whereas at least a part of the lobes is provided by the cover. The invention also relates to a method of providing the rotor and a pump comprising the rotor. The rotor has a high durability and provides an excellent sealing towards inner surface sections of the pumping house as well as towards an engaged rotor.

Abstract: For facilitating the passage of wheelchair users over door thresholds it is known to lay out ramp elements across the threshold, this however being an expensive solution even implying that the door cannot be closed. The invention provides for a ramp set suited to be laid out at both sides of the threshold so as to leave the top side thereof uncovered, whereby the door can still be opened and closed. The ramp construction is modular based on the use of light, joinable plastic tile elements of ordinary shape and wedge shape, respectively, and this makes it possible to build up non-costly, tailored ramp constructions in more general, with an associated possibility of reusing the tile elements.

Abstract: A corner support element for paving slabs has stackable plate elements to facilitate transport and for height adjustment. The guide and support elements for corner parts of paving slabs, namely plate elements, have cruciform upright support and distance providing projections. The projections are shaped as upwardly tapering elements with open cavities downwards for accommodating corresponding underlying projections. The elements are modular and can be separated along radial rows of projections to form semicircular segments for supporting two adjoining slab corners or quarter segments for supporting only a single corner. The elements are stacked in columns without turning each of the modular parts mutually between them.

Abstract: Modular tiles, integrated with a flooring of a conducting type, are manufactured of electrically conducting plastic, whereby a grounding ability is achieved without sacrificing any advantage of the modular tiles. The conducting modular tiles may be laid in selected places in an assembled flooring and can be shifted to other places in dependence upon specific requirements. The individual conducting tiles may be connected to a grounding wire laid out beneath the tiles such that none of the flooring will be far from a direct ground connection.