Roisin
Alain Roisin, Marnes La Coquette FR
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20150202048 | PROSTHETIC TIBIAL BASE AND PROSTHETIC TIBIAL INSERT INTENDED TO BE IMMOBILIZED ON SUCH A PROSTHETIC TIBIAL BASE - The invention relates to a base that includes a unit for osseous attachment onto a tibia, and a plate having posterior, anterior, medial and lateral edges; a posterior pin and an anterior pin having a posterior flat section and an anterior flat section; two posterior lugs protruding above the plate and arranged on the posterior edge of each side of the posterior pin; and two anterior lugs arranged on each side of the anterior pin. The posterior flat section and the anterior flat section are arranged so as to simultaneously engage with the insert. Each posterior tab includes a support extension for inserting, in an anteroposterior direction, a complementary support tab of the insert. Each anterior lug includes a unit for snap-coupling the insert onto the base. | 07-23-2015 |
Benoit Roisin, Croydon, NH US
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20100180631 | TURBO-COMPRESSOR-CONDENSER-EXPANDER - This invention provides an isothermal turbocompressor and a combined turbo-compressor-condenser-expander arrangement, which includes heat-transferring blades that are mounted on, or surround, individual conduits to promote air exchange and heat transfer. In operation, the open framework rotates in free air to promote heat exchange. This optimizes contact with free air during rotation. The assembly includes a first plurality of spokes extending radially outwardly from a first central hub to an outer perimeter with first radial conduits that transport refrigerant under centrifugal force and compression from the hub to the outer perimeter. The first radial conduits include heat exchanging blades. A second plurality of spokes extend radially outwardly from a second central hub at an axial spacing from the first central hub. This second plurality of spokes each includes a second thermally-insulated conduit that transports refrigerant from the outer perimeter to the second central hub. Axial conduits extend axially at the outer perimeter, and each interconnects each first radial conduit and each second radial conduit. At least some of the plurality of axial conduits include an axial blade in thermal communication with the conduit that promotes heat exchange radially. A motor rotates a central axis of the turbo-compressor-condenser-expander. | 07-22-2010 |
20140069138 | TURBO-COMPRESSOR-CONDENSER-EXPANDER - An isothermal turbo-compressor-condenser-expander arrangement includes heat-transferring blades that are mounted on, or surround, individual conduits to promote air exchange and heat transfer. In operation, the open framework rotates in free air to promote heat exchange. The assembly includes a first plurality of spokes extending radially outwardly from a first central hub to an outer perimeter with first radial conduits that transport refrigerant under centrifugal force and compression from the hub to the outer perimeter. The first radial conduits include heat exchanging blades. A second plurality of spokes extend radially outwardly from a second central hub that each includes a second thermally-insulated conduit that transports refrigerant from the outer perimeter to the second central hub. Axial conduits extend axially at the outer perimeter. At least some of the axial conduits include an axial blade in thermal communication with the conduit that promotes heat exchange radially. | 03-13-2014 |
Benoit Roisin, Croyden, NH US
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20130206374 | GEOMETRY OF HEAT EXCHANGER WITH HIGH EFFICIENCY - The present disclosure includes geometry of a two-fluid heat exchanger to provide higher energy efficiency than conventional heat exchangers. The geometry is based upon sequential branching of nearly circular passages in sets, followed by some deformation and twisting of the sequential branches that intermingle flow passages of one fluid with flow passages of another fluid. The flow passages gradually vary in dimension from larger branching at fluid entrance and exit to smaller branching in the middle section of the heat exchanger. The heat exchanger is substantially symmetric, with the sequential branching in the first half being mirrored as serial regrouping in the second half. The present disclosure also provides stacking methods and layered manufacturing methods for fabricating the three-dimensional geometry of the heat exchanger. | 08-15-2013 |
Eric Roisin, Rueil Malmaison FR
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20100284879 | TREATMENTS OF TAIL GAS FROM A CLAUS UNIT OVER AN OPTIMIZED SEQUENCE OF CATALYSTS - For the conversion of sulphur-containing compounds present in a gas comprising H | 11-11-2010 |
20130303811 | GAS TREATMENT PROCESS - The present invention relates to a process for treating a gas containing from 10 ppm by volume to 0.5 volume % of at least one of the compounds COS and CS | 11-14-2013 |
Philippe Roisin, Charenton-Le-Pont FR
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20080206470 | Method for Producing an Optical Article Coated with an Antireflection or a Reflective Coating Having Improved Adhesion and Abrasion Resistance Properties - The invention relates to a method for producing an optical article having antireflection or reflective properties and comprising a substrate having at least one main surface, comprising the step of depositing a sub-layer onto a substrate's main surface, the step of treating the sub-layer by ionic bombardment and the step of depositing onto said sub-layer a multilayered stack comprising at least one high refractive index layer and at least one low refractive index layer. According to a preferred embodiment, the deposition of the sub-layer is conducted in a vacuum chamber in which a gas is supplied during the deposition step. | 08-28-2008 |
20080213473 | Method for Producing an Optical Article Coated with an Antireflection or a Reflective Coating Having Improved Adhesion and Abrasion Resistance Properties - The invention relates to a method for producing an optical article having antireflection or reflective properties and comprising a substrate having at least one main surface, comprising the step of depositing an sub-layer onto a substrate's main surface, the step of treating the sub-layer by ionic bombardment and the step of depositing onto said sub-layer a multilayered stack comprising at least one high refractive index layer and at least one low refractive index layer. According to a preferred embodiment, the deposition of the sub-layer is conducted in a vacuum chamber in which a gas is supplied during the deposition step. | 09-04-2008 |
20090169859 | Article Comprising a Mesoporous Coating Having a Refractive Index Profile and Methods for Making Same - The present invention relates to an article comprising a substrate having a main surface coated with a coating, part of which at least is mesoporous and has a refractive index profile with optical function, whose variation is imposed by the mesopore content and/or the filling ratio of the mesopores. | 07-02-2009 |
Philippe Roisin, Chrenton-Le-Pont FR
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20130071579 | METHOD FOR PRODUCING AN OPTICAL ARTICLE COATED WITH AN ANTIREFLECTION OR A REFLECTIVE COATING HAVING IMPROVED ADHESION AND ABRASION RESISTANCE PROPERTIES - The invention relates to a method for producing an optical article having antireflection or reflective properties and comprising a substrate having at least one main surface, comprising the step of depositing an sub-layer onto a substrate's main surface, the step of treating the sub-layer by ionic bombardment and the step of depositing onto said sub-layer a multilayered stack comprising at least one high refractive index layer and at least one low refractive index layer. According to a preferred embodiment, the deposition of the sub-layer is conducted in a vacuum chamber in which a gas is supplied during the deposition step. | 03-21-2013 |