Abstract: The invention relates to equipment and method for filling pressurized gas cylinders (7) from a liquefied gas tank (1), including a transfer pipe (10) including an upstream end connected to the tank (1) and at least one downstream end that is to be selectively connected to at least one pressurized gas cylinder (7), the transfer pipe (10) including at least one member (5) for vaporizing the liquid drawn from the tank (1), wherein the equipment includes a member (3) for selectively generating an airflow for exchanging heat with said at least one vaporizing member (5), the equipment being characterized in that it includes an air circuit (4, 8) guiding the air that exchanged heat with the vaporizing member (5) up to a space located at the upstream end of the transfer pipe (10) in order to cool the cylinders (7) to be filled.

Abstract: The invention relates to a device for storing and distributing a high-purity pressurized liquefied gas at a rate which is higher than or equal to 1 kg/h, said device having: a container comprising a liquefied phase of said gas in its lower part, and a gaseous phase of said gas in its upper part, a system for bleeding the gaseous phase of said gas, and a heating system used to maintain a constant pressure of the gas at the moment of use. The invention is characterized in that the heating system involves the circulation of a hot fluid in a circuit built into the surface of the container.

Abstract: The invention relates to a plant for filling gas cylinders with pure gases and/or mixtures of pure gases or special gases, said plant including: a device for selecting gas and/or for making mixtures of gases to be fed into a gas cylinder; apparatuses for analyzing the composition of said mixtures or said pure gases; characterized in that the following measures are implemented: the plant is integrally contained in a transportable container having a ground surface lower than 45 m2, said ground surface preferably being between 34 m2 and 40 m2; the devices contained in said container are attached to the walls of the container and can be connected to gas sources outside the container; the arrangement thus obtained enables the users to access said devices and apparatuses from the inside of said container and to fill the cylinders inside said container.

Abstract: The invention relates to a device for storing and distributing a high-purity pressurized liquefied gas at a rate which is higher than or equal to 1 kg/h, said device having: a container comprising a liquefied phase of said gas in its lower part, and a gaseous phase of said gas in its upper part, a system for bleeding the gaseous phase of said gas, and a heating system used to maintain a constant pressure of the gas at the moment of use. The invention is characterized in that the heating system involves the circulation of a hot fluid in a circuit built into the surface of the container.

Abstract: The invention relates to an electronic plug-in unit which has two lateral edges and adapted to support at least one electronic card. The plug-in unit includes a central core made of metal lying parallel to the plane of the plug-in unit and a supported electronic card to drain away heat, by thermal conduction, to at least one lateral radiator which forms one of the lateral edges of the plug-in unit.

Abstract: This invention relates to a frame having a backplane and two side panels for supporting electronic plug-in units in an integrating rack wherein the back ends of the side panels have two separate positions for fixing the backplane with respect to the side panels to allow its depth to be adjusted to one-of two positions and the front end of each side panel is coupled to the integrating rack by a bracket having two legs, one leg of each bracket being connected to the integrating rack and the other leg of each bracket containing apertures located to be aligned with other apertures in the side panels for fixing the side panels to the brackets in one of two positions to allow an electronic plug-in unit to be fixed to the integrating rack at one of two positions.

Abstract: A process for diffusing an odoriferous substance placed in a container, as well as a gas mixture comprising an odoriferous substance in gas form and an odorless and breathable gas, placed in a container under a pressure higher than or equal to 5 bars.

Abstract: Compositions for checking the functioning of fire detectors comprising at least 75% of at least one haloalkane, up to 15% of at least one volatile organic compound selected from the group consisting of alcohols, oxoderivatives, and ethers, a small amount of an organic compound having a vapor pressure less than 0.1 millibar, and an optional propellant. The composition can be used to check the functioning of ionization detectors, combustible gas detectors, and optical smoke detectors.

Abstract: In a process of gaseous opalization a film of silica is formed by an oxidation reaction with a dry gas containing oxygen. Pure oxygen or oxygen diluted in an inert gas, other than nitrogen, may be used. An electric arc is generated by an alternating voltage between 5,000 and 10,000 volts and is directed at a chlorinated silicon compound, entrained by the dry gas containing oxygen, the feeding of which gas carrier does not form silica on the electrodes which generate the arc. This process may be applied to the opalization of incandescent and discharge bulbs of various sizes including tubes and globes of lighting apparatus.

Abstract: Glass bulbs are given a deposit of silica by oxidation of silane with oxygen on the inside of the bulb. The silica deposit is formed by oxidation, with oxygen through an electric arc, of silane diluted to a slight concentration of 0.1 to 3% by volume in a gas inert in regard to silane. The process applies to opalizing, i.e. providing a light diffusing layer, incandescent and discharge bulbs of different sizes, including tubes, and globes of lighting fixtures.

Abstract: Apparatus for the telereproduction of documents transmitted in the form of electrical signals emanating from the line-by-line scanning of the original and modulating a carrier or sub-carrier wave, the demodulated video signals being applied to the scanning element of the reproduction apparatus synchronized with the scanning element of the emitter, the apparatus comprising a memory in which is stored the video voltage emanating from demodulation of the signals received, and means for removing these signals from the memory at a speed exactly proportional to that of the line scanner of the recorder, i.e. each time this element has advanced by a step of constant value corresponding to the distance separating two successively recorded dots.