L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EX Patent applications |
Patent application number | Title | Published |
20130133364 | APPARATUS AND PROCESS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION - In a process for delivering pressurized gas from an apparatus for separating air by cryogenic distillation, a stream of oxygen-rich liquid or gas having a nominal flow rate is withdrawn from a low-pressure column, an oxygen-rich liquid purge stream is withdrawn as bottoms from the low-pressure column and the oxygen-rich liquid purge stream is sent to a storage tank, in the event of a reduction in the production by the column system or an increase in the demand by a customer, a back-up stream is withdrawn from the storage tank and vaporized in a back-up reboiler and only if the liquid level in the storage tank exceeds a given threshold, a liquid stream is withdrawn from the storage tank constituting at most 2% of the nominal production output of the oxygen-rich stream and is sent to the back-up reboiler. | 05-30-2013 |
20130089650 | Method of Precooking the Surface of Food Products with a View to Marking Them or Hardening Them - The invention relates to a preferably continuous method for precooking the surface of food products, characterized in that all or part of the surface of the product makes contact with the flame produced by a burner, the flame employed being an oxyhydrogen flame, preferably a hydrogen/oxygen flame. | 04-11-2013 |
20130087314 | HEAT EXCHANGER UNIT - A heat exchanger unit includes at least two heat exchangers of the plate fin type that are substantially identical cuboids offset from each other. The heat exchangers are linked to at least one single distribution conduit and at least one single collection conduit. At least one first heat exchanger is situated on one side relative to the axis of the single distribution conduit and at least one second heat exchanger is situated on the other side relative to the axis of the single distribution conduit. A first face of the first heat exchanger is parallel to the nearest face of the second heat exchanger, but offset in the direction of the axis of the single distribution conduit. Each heat exchanger is fluidly connected to the face proximate to the distribution conduit, the offset being such that the each fluid connection does not contact one another. | 04-11-2013 |
20130000332 | Method and Equipment for Pulsed Charge Refrigeration - The invention relates to a method and device for pulsed charge refrigeration of a member from a Tokamak. The method uses a refrigeration device that subjects a working fluid such as helium to a work cycle comprising: compression, cooling, and decompression, as well as heat exchange with the member and heating. The refrigeration power produced by the refrigeration device is increased to a relatively high level when the Tokamak is in a plasma generation phase, and the refrigeration power produced by the refrigeration device is decreased to a relatively low level when the Tokamak is no longer in a plasma generation phase. Said method is characterized in that the increase in refrigeration power produced by the refrigeration device is automatically triggered in response to a signal produced during a step for starting plasma in the Tokamak. | 01-03-2013 |
20110290371 | Miniaturized Plant for Producing Gas Mixtures - 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 m | 12-01-2011 |
20110223293 | Method for Shaping a Food Product by Cryoextrusion Employing Predictive Temperature Regulation - The subject of the invention is a method for shaping at least one food product by cryoextrusion, the extruder being provided with a double-walled jacket surrounding the extrusion screw and through which jacket a coolant flows, this jacket consisting of a single module or several independent modules, the cryoextrusion being temperature-regulated on the basis of a curve, determined for said product to be cryoextruded, representing, plotted on the X-axis, the difference D between the actual temperature of the product and the desired temperature setting for the product at the exit and, plotted on the Y-axis, the setting to be applied for the gas temperature at the exit of the module or modules, the curve being split into three linear zones: an abrupt (steep-slope) zone, around a difference D close to 0, surrounded by two quasi-plateau zones. | 09-15-2011 |
20110067445 | Method And Apparatus For Separating Air By Cryogenic Distillation - A method and to an apparatus for producing oxygen by separating air using cryogenic distillation is presented. | 03-24-2011 |
20100212494 | Method for Eliminating Mercury from a Gas Containing CO2 and Oxygen - A method for the purification of a feed gas stream at a pressure ≧3 bar, comprising at least 1% by volume of oxygen (O | 08-26-2010 |
20100162766 | Method for Monitoring by Absorption Spectroscopy During the Forming of Flat Glass and Monitoring Device - The invention relates to a method for controlling flat glass forming by flowing a molten glass over a liquid tin layer contained in a forming vat wherein a forming characteristic quantity is measured above the glass surface during forming by means of beams generated by at least one absorption spectroscopy-based analyser, wherein the light beams generated by said analyser form a net above the glass surface. A device for carrying out the inventive method comprising an arm for supporting a vessel which comprises a retroreflecting means for receiving a light beam and transmitting it in an opposite direction parallel to an incident optical path is also disclosed. | 07-01-2010 |
20100089237 | Method for Removing N20 from a Gaseous Flow - The invention relates to a method for purifying a supply gaseous flow containing at least 5 vol. % of N | 04-15-2010 |
20090165237 | Wiper Blade for a Wiper and Method for Manufacturing the Same - The present invention relates to a wiper blade ( | 07-02-2009 |
20080277843 | Method for Supersonically Injecting Oxygen into a Furnace - The invention relates to a method and device for supersonically injecting oxygen into a furnace, in particular a cupola furnace, in which the total oxygen required for the furnace operation is injected with the aid of two distinct circuits, i.e., the first circuit comprising at least one supersonic oxygen injecting nozzle and a second circuit which comprises additionally oxygen injecting means and is connected to the first circuit by pressure-sensitive means, such as a discharging device (or upstream pressure adjuster), in such a way that a stable pressure is obtained in the first circuit upon the attainment of the maximum flowrate thereof, wherein the first circuit can consists of several supersonic nozzle groups. | 11-13-2008 |