Abstract: Elliptical cylinder collector for thermal solar energy comprising a first pipe and a reflector surface, which also comprises a second pipe and a third pipe, wherein the reflector surface has a generatrix which is half an ellipse and wherein the second pipe and the third pipe are located at focal points of the ellipse and the first pipe is located on a minor axis of the ellipse at a greater distance from the reflector surface than the second pipe and the third pipe, the first pipe is also located at the focal point of an imaginary parabola whose vertex is located at the negative end of the minor axis of the ellipse.

Abstract: The present invention seeks to provide a device made of relatively simple mechanical elements, intended to lock and unlock the knobs used for opening the flow of gas for stoves, heaters or similar equipment, which is used as a safety system to prevent accidental intoxication, explosions or fires.

Abstract: The present invention relates to a device made of metal bars or other resistant materials, intended for locking the rotary knobs that enable the circulation of gas in ranges, stoves or similar apparatuses, wherein said device comprises a sliding horizontal lockout knob behind the burners, connected to a control bar which, in turn, is connected or welded to a front bar that slides over rollers when the gas release knobs must be locked. Thus, lockout is achieved by means of a wedge that is part of the control rod and which is inserted in a hole made in the cylindrical shaft of the circulation knobs. The device is used as a safety system against poisonings, explosions or fires, which might occur upon accidentally releasing the circulation of gases.

Abstract: Modular tray comprising a plurality of bases, a central piece to which the plurality of bases is fixed and an external ring, wherein the external ring is configured for being fixed to the bases in a zone opposite the central piece providing rigidity to the plurality of bases fixed to the central piece such that each base comprises a smaller curved side configured for being joined to the central piece, a larger curved side, and two flat sides between the smaller curved side and the larger curved side such that two contiguous bases, fixed to the central piece, have two flat contiguous sides.

Abstract: Elliptical cylinder collector for thermal solar energy comprising a first pipe and a reflector surface, which also comprises a second pipe and a third pipe, wherein the reflector surface has a generatrix which is half an ellipse and wherein the second pipe and the third pipe are located at focal points of the ellipse and the first pipe is located on a minor axis of the ellipse at a greater distance from the reflector surface than the second pipe and the third pipe, the first pipe is also located at the focal point of an imaginary parabola whose vertex is located at the negative end of the minor axis of the ellipse.