Abstract: A lighted tile for false panel, including a frame having a bottom and sides that extend projecting from the bottom, a backlighting system having a series of lights attached to the bottom, and a stretched flexible sheet that extends between the sides facing the lights. The lights are light-emitting diodes, and the sheet is secured to the sides of the frame.

Abstract: A lighted tile for false panel, including a frame having a bottom and sides that extend projecting from the bottom, a backlighting system having a series of lights attached to the bottom, and a stretched flexible sheet that extends between the sides facing the lights. The lights are light-emitting diodes, and the sheet is secured to the sides of the frame.

Abstract: A flexible sheet material of thickness less than half a millimeter for making tensioned structures such as false ceilings, in particular, the material including microprojections formed by displacing the material from which it is made, said material presenting an acoustic absorption coefficient which is higher than that of the same material without said projections.

Abstract: A panel frame for suspended ceiling, at least one side of this frame having, when seen in section, a top wall and a side wall. The top wall is provided with a fitted flat section, this flat section having at least two through-holes for the passage of an assembly mechanism such as screws, one of the through-holes being ovalized or oblong.

Abstract: A panel frame for suspended ceiling, at least one side of this frame having, when seen in section, a top wall and a side wall. The top wall is provided with a fitted flat section, this flat section having at least two through-holes for the passage of an assembly mechanism such as screws, one of the through-holes being ovalized or oblong.

Abstract: A firearms training simulator provides recoil simulating the recoil of a conventional firearm. The valve assembly provides consistent rearward gas pressure for generating recoil. Preferred embodiments of the firearms training simulator may include a means for adjusting the amount of recoil provided. A trigger mechanism permitting semi-automatic operation, or full automatic operation at a user selectable cyclic rate, is provided. The firearms training simulator further provides a laser emitter structured to emit a laser substantially along the same path as a bullet fired from a conventional firearm having the same configuration as the simulator.

Abstract: A flexible sheet material of thickness less than half a millimeter for making tensioned structures such as false ceilings, in particular, the material including microprojections formed by displacing the material from which it is made, said material presenting an acoustic absorption coefficient which is higher than that of the same material without said projections.

Abstract: An assembly for mounting a self-supporting spotlight to a tensioned ceiling, the assembly comprises a reinforcing washer stuck to the front face of the sheet forming the ceiling, and a spotlight having at least one bulb and a spotlight collar suitable for fastening to the reinforcing washer. According to the invention, the spotlight collar has first fastening means and the reinforcing washer has second fastening means, said first and second fastening means being suitable for co-operating in reversible manner on turning the collar through an angle relative to the washer for the purposes of locking and unlocking them.

Abstract: A flexible sheet material of thickness less than half a millimeter for making tensioned structures such as false ceilings, in particular, the material including microprojections formed by displacing the material from which it is made, said material presenting an acoustic absorption coefficient which is higher than that of the same material without said projections.

Abstract: The invention concerns a rail section for false stretched fabric partitions, said section (3) comprising at least a groove (10) defined by two lateral walls (5, 7) and a base wall (6), said groove (10) being designed to contain at least an edge of the stretched fabric (1) after it has been mounted into the rail (3), said section being in one single piece and comprising a joint (12) for retaining the edge of the stretched fabric (1) in said groove (10), said joint (12) being made of a material having a flexibility different from that of the material constituting the walls (5, 6, 7) of said groove (10). The invention also concerns false stretched fabric partitions, such as false ceilings or false walls, said fabrics being stretched in a frame obtained by assembling such sections.

Abstract: Prefabricated bondable flexible polymer material in thin sheet, slab, or panel form for making tensioned structures such as false ceilings in particular, said mono- or multilayer material such as plasticized PVC, for example, carrying a direct ink jet or silkscreen print of at least one design of shapes and dimensions that are predetermined once the material is under tension; making a tensioned structure such as a tensioned false ceiling, in particular, from such a material, by means of a first step of selecting the type, dimensions, and dispositions of the mono- or polychromatic designs to be printed, said designs being digitized and recorded in a computer memory of a system for controlling a printing machine, printing optionally being performed on a plurality of bonded-together strips of material, and in particular over zones of edge-to-edge bonding between the strips, said printing taking place before or after bonding.

Abstract: The invention concerns a false wall element comprising a stretched fabric in a frame with lateral edge provided with means catching the edges of said fabric, said lateral edge comprising a rigid profiled section forming a free edge curved in the plane, with curvature corresponding to that of a part of the edge of said fabric fastened on said curved edge. Said false wall elements are used for making curved stretched suspended false ceilings and stretched false walls with curved profile.

Abstract: A fluid module for a fluid control apparatus which has an internal fluid operated diaphragm which will permit the manifolding of several modules together. Each of the modules is of the same configuration and is interconnected to a common main fluid supply source. The modular units are plugged together using couplings with the main fluid source piped only to one device with an internal fluid passage delivering the fluid to all of the modular units. The modular units can be connected in a series or parallel combination with respect to signalling fluids. The modular units eliminate the cost of interconnecting different units at a variety of locations with different couplings as well as independently supplying each unit with a supply fluid.

Abstract: A field type granular fertilizer applicator includes a mixing unit for putting the fertilizer into the air carrier medium stream for conveying it to a plurality of applicator knives. The mixing unit includes a passageway between the inlet and the outlet which has a 180.degree. curve with an alternate path that returns to the inlet thereby providing a 360.degree. turn. The granular material is fed into the mixer unit at the approximate radius of curvature center for the curved passageway. The centrifugal movement of the air produces a vacuum at the radius of curvature center allowing for gentle acceleration of the granular material.