A device for heating a room (2) in a building by means of underfloor heating, the floor comprising pipe loops (4) for circulation of a hot medium, preferably water. The floor has a subfloor (1) and an upper floor (8) at a mutual distance, so that an air-filled chamber (16) is formed between them. In the outer wall (3) of the room there are inlet openings (7) for fresh air, which by means of negative pressure ventilation in the room (2) flows into the chamber (16), over the pipe loops (4) to heat up, and out through outlet openings (9) in the upper floor (8). The heat absorbed from the pipe loops (4) goes partly up through the upper floor (8), partly out into the room (2) as heated air. The pipe loops (4) extend transversely of the direction of movement of the air from the inlet (7) to the outlet (9) and are partly cast in concrete on the bottom of the chamber (16).

A concrete ceiling element for producing a concrete ceiling is disclosed. The concrete ceiling element has a flat basic structure that has an upper side and at least one FRC plate. The concrete ceiling element has at least one FRC ridge. The FRC ridge is arranged on the upper side and connected in sections to the basic structure. Furthermore, a concrete ceiling and a method for producing a concrete ceiling or a concrete ceiling element are provided.

The invention relates to a receiving structure (1) which is intended for casting into a matrix material and has at least one receiving element (4), which projects out of the receiving structure (1) in such a way that it can project into the matrix material. According to the invention, the receiving element (4) has in its interior a receiving space (6) which has an opening (10) facing the surface (94) of the component (90), through which opening (10) a functional module (60, 65, 70, 75, 80, 82, 84, 86, 88) can be guided for insertion into the receiving space (6), wherein the receiving space (6) is universally designed for receiving and connecting each of the functional modules (60, 65, 70, 75, 80, 82, 84, 86, 88, 89), wherein at least one position-securing element (40) is provided for securing the position of reinforcement (96) and substantially predetermines the outer shape of the component (90).

The invention further relates to a component (90) comprising a textile reinforcement (96), a matrix material, and conduits (16) for the passage of electricity and/or fluids. According to the invention, a receiving structure (1) comprising receiving elements (4) is embedded in the matrix material and is connected to the textile reinforcement (96) and/or the conduits (16) via position-securing elements (40), wherein the textile reinforcement (96) is aligned in a load-dependent manner with respect to the receiving elements (4), and the receiving elements (4) of the receiving structure (1) are designed in such a way that an influence on the load-bearing behavior of the produced component (90) is minimized.

The invention also relates to a method of producing a device with the receiving structure (1).

A tile, which may be a component of a modular flooring system, includes a plurality of cells on its underside, adjacent cells being interconnected to form two sets of channels parallel to the upper surface and open to the underside of the tile. The tile may have recesses in its upper surface, into which inserts can be pressed to form a decorative pattern. The channels may be used as ducting for cables under the floor surface. The cables can be held in place by clips that bridge between a pair of the cells. The cables may include a lighting cable, which can be arranged to transmit light to the upper surface of the tile through inserts that are translucent.

A tile, which may be a component of a modular flooring system, includes a plurality of cells on its underside, adjacent cells being interconnected to form two sets of channels parallel to the upper surface and open to the underside of the tile. The tile may have recesses in its upper surface, into which inserts can be pressed to form a decorative pattern. The channels may be used as ducting for cables under the floor surface. The cables can be held in place by clips that bridge between a pair of the cells. The cables may include a lighting cable, which can be arranged to transmit light to the upper surface of the tile through inserts that are translucent.

A cap for a tubular sleeve having a cylindrical wall extending along a longitudinal axis for forming a passage through a concrete structure. The sleeve has radially extending ridges separated into segments with a channel parallel to the longitudinal axis. The channel has a circumferential width W. The ridges spaced apart a distance Z along the longitudinal axis. The sleeve having an inner diameter D. The cap has a cap element and a positioning tab. The cap element has a circular outer periphery with a flat top surface and a flange having a bottom end, and the tab extends inwardly from the bottom end and has a bottom surface that is orthogonal to the longitudinal axis. The tab has an inner surface that is inclined at an acute angle to the bottom surface. The tab has a width smaller than W and an axial length smaller than Z.

A cap for a tubular sleeve having a cylindrical wall extending along a longitudinal axis for forming a passage through a concrete structure. The sleeve has radially extending ridges separated into segments with a channel parallel to the longitudinal axis. The channel has a circumferential width W. The ridges spaced apart a distance Z along the longitudinal axis. The sleeve having an inner diameter D. The cap has a cap element and a positioning tab. The cap element has a circular outer periphery with a flat top surface and a flange having a bottom end, and the tab extends inwardly from the bottom end and has a bottom surface that is orthogonal to the longitudinal axis. The tab has an inner surface that is inclined at an acute angle to the bottom surface. The tab has a width smaller than W and an axial length smaller than Z.

The invention comprises a product. The product comprises a first removable concrete form having a concrete forming face and a first insulating panel insert having a first primary surface and an opposite second primary surface, wherein the second primary surface of the first insulating panel insert contacts the concrete forming face of the first removable concrete form. The product also comprises an elongate anchor member having an enlarged portion and an elongate portion, the elongate portion having a first end and an opposite second end, wherein the enlarged portion is disposed adjacent the first end and contacts the second primary surface of the first insulating panel insert and wherein the elongate portion extends through the first insulating panel insert and extends outwardly from the first primary surface of the first insulating panel insert. A method of using a removable insulated concrete form system is also disclosed.

An amusement system features an interactive floor with an array of panels laid out in one or more grids to collectively define an interactive floor surface, an illumination system operable to individually illuminate each panel, and a sensing system operable to detect presence of any participant atop any panel. A base frame of the interactive floor is composed of a plurality of base modules seated on a subfloor, and supporting a respective panel for one or more cells of the interactive floor. The base modules are not directly fastened together, and instead are only intercoupled by perimeter seals applied over peripheral regions of the panels of neighbouring modules. Separation of the modules is constrained by surrounding walls of a room fully occupied by the interactive floor. In gameplay, some panels are distinctively illuminated as hazards to be avoided by participants, subject to penalty.

The present disclosure provides an electrical power supply structure comprising a plurality of insulated pipes, each insulated pipe extending longitudinally and configured to carry high amperage electrical power, a barrier support plate comprising one or more openings for receiving the plurality of insulated pipes, the barrier support plate configured for mounting over a hole through a floor of a building, a first support structure extending longitudinally upward from an upper side of the barrier support plate, and a second support structure extending longitudinally downward from a lower side of the barrier support plate through the hole. Each of the first and second support structures comprises a longitudinally extending enclosure having a plurality of transversely extending conductor support members for supporting the plurality of insulated pipes, and the plurality of insulated pipes are grouped by phase.