Patents by Inventor Paul Aubert
Paul Aubert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4691597Abstract: Control device of an automatic transmission having four forward speeds with shifting under torque together with a hydrokinetic torque converter with an integrated torsional damper, and one reverse speed, of the type comprising a planetary gear train controlled by three clutches and two brakes with hydraulic control. A hydraulic distributor controlled by four solenoid valves selectively feeds the clutches and brakes, depending on the running conditions of the vehicle. The control means of the solenoid valves are made to use two states of one of these solenoid valves to allow fast filling and progressiveness of the active receiver or receivers during shifting and two states of the other solenoid valves to assure the various sequences during shifting.Type: GrantFiled: September 18, 1985Date of Patent: September 8, 1987Assignee: Regie Nationale des Usines RenaultInventors: Francois Leorat, Patrick Coutant, Paul Aubert
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Patent number: 4679988Abstract: Pressure control device comprising a manual valve (VM) associated with a pressure control valve (VRP), includes a first line pressure (P.sub.L), defined by two calibrated jets in series, which are placed on a duct set at zero pressure by the manual valve (VM) being in a first position R. At a second line pressure range (P.sub.L), a duct is fed at line pressure (P.sub.L), the manual valve (VM) is in a second position A. A variation of line pressure (P.sub.L) is assured by a modulating solenoid valve (EVM), which establishes a modulated pressure (P.sub.M) acting on a differential section (.SIGMA.) of said pressure control valve (VRP).Type: GrantFiled: September 18, 1985Date of Patent: July 14, 1987Assignee: Regie Nationale des Usines RenaultInventors: Francois Leorat, Patrick Coutant, Paul Aubert
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Patent number: 4664137Abstract: Two-level pressure control device has a pressure control valve VLP 3 associated with a system of jets and in series to obtain a first reference pressure level P.sub.1 and a second reference pressure level P.sub.2.Type: GrantFiled: September 18, 1985Date of Patent: May 12, 1987Assignee: Regie Nationale des Usines RenaultInventors: Francois Leorat, Patrick Coutant, Paul Aubert
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Patent number: 4421136Abstract: A drain pipe arrangement for draining water from a floating roof of a storage reservoir includes a flexible drain pipe connected to the roof, and a flexible heating element within the drain pipe. The flexible heating element takes the form of two rigid metal tubes twisted on each other and having their upper ends connected together. A pump and heater provide for circulating heated fluid through the tubes to prevent drain water from freezing in the drain pipe.Type: GrantFiled: February 27, 1981Date of Patent: December 20, 1983Assignee: CoflexipInventor: Jean-Paul Aubert
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Patent number: 4377186Abstract: A flexible buoyant conduit which includes a thermoplastic pressure-resistant stratum. The pressure resistant stratum is formed by spirally winding, and overlapping, a belt or band the cross-section of which is in the form of an elongated S-shape having a groove in the bottom wall of each channel.Type: GrantFiled: June 1, 1981Date of Patent: March 22, 1983Assignee: CoflexipInventors: Maurice Genini, Christian Athe, Jean-Paul Aubert
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Patent number: 4364418Abstract: A flexible conduit with a quadrangular hollow casing-shaped wire in the side wall of the conduit and extending the length of the conduit. The casing-shaped wire has at one side bent unjoined and overlapping extremities of the metal strip from which the wire is formed and is capable of receiving a hydraulic or electrical control line therein.Type: GrantFiled: April 6, 1979Date of Patent: December 21, 1982Assignee: CoflexipInventors: Maurice Genini, Christian Athe, Jean-Paul Aubert
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Patent number: 4344462Abstract: A flexible conduit has an undulating liquid tight inner tube portion and layers of metal reinforcing wound around the tube. The layers include a burst resisting layer adjacent the tube, then traction and pressure resisting layers, and an outer sheath. The undulations in the interior of the tube can be filled with packing or the tube can be lined with a spiral strip to lessen resistance to fluid flow through the conduit.Type: GrantFiled: May 23, 1980Date of Patent: August 17, 1982Assignee: COFLEXIPInventors: Jean-Paul Aubert, Maurice Genini
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Patent number: 4332509Abstract: A piping or conduit system in which conduits to receive flow lines or flexible pipe can be connected end to end to form a riser assembly, and thereafter, the flow lines can be inserted through individual conduits of the assembly. The section contains a low density foam to impart essentially zero negative and positive buoyancy, and the foam is filled into areas surrounding the individual conduits of the sections. Suitable reinforcing and tension stress resisting elements are provided so that each section is essentially self sustaining.Type: GrantFiled: June 10, 1980Date of Patent: June 1, 1982Assignee: CoflexipInventors: Remi Reynard, Christian Athe, Jean-Paul Aubert
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Patent number: 4302937Abstract: A pressure limiter-regulator for a hydraulic control circuit. In a single body, a single spring acts both on a central spindle, which provides the pressure regulating function, and on a ball which provides the limiting function. The invention is applicable to the hydraulic feeding of a hydrokinetic torque converter.Type: GrantFiled: September 28, 1979Date of Patent: December 1, 1981Assignee: Regie Nationale des Usines RenaultInventor: Paul Aubert
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Patent number: 4290324Abstract: A device controlling a multi-stage automatic transmission for an engine-driven vehicle with three forward drive ratios and change-under torque, damped by a hydrokinetic torque converter, and one reverse drive, of the type consisting of an epicyclic gear train actuated by two clutches and two brakes hydraulically controlled. A hydraulic distribution unit is monitored by two electric valves in order to feed selectively the two clutches and the two brakes on the basis of data concerning the running of the vehicle. The two electric valves are controlled in response to three different states of the two electric valves for providing selective feeds corresponding respectively to each of the three forward drive ratios and for providing an additional control of the electric valves in response to a fourth transient state for the transmission between the third and second forward drive ratios.Type: GrantFiled: September 28, 1979Date of Patent: September 22, 1981Assignee: Regie Nationale des Usines RenaultInventors: Paul Aubert, Christian Quinton, Gerard Pannier
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Patent number: 4279268Abstract: A multi-level pressure regulating valve for a hydraulic control circuit. It includes a three-level or four-level pressure regulating valve utilizing an intermediate chamber which is fed with fluid through two parallel ducts, each having its own throttling device.Type: GrantFiled: September 28, 1979Date of Patent: July 21, 1981Assignee: Regie Nationale des Usines RenaultInventor: Paul Aubert
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Patent number: 4256146Abstract: A composite flexible tube is disclosed. The central portion of the core of the tube is formed of a plurality of hollow elements dipsosed concentrically about the longitudinal axis of the tube.Type: GrantFiled: February 21, 1979Date of Patent: March 17, 1981Assignee: CoflexipInventors: Maurice Genini, Christian Athe, Jean-Paul Aubert
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Patent number: 4048308Abstract: An acellular planktonic product comprises plankton, the cellular membranes of which have been ruptured. This product is usefully employed in the production of cosmetic compositions for application to human skin.Type: GrantFiled: July 21, 1975Date of Patent: September 13, 1977Assignee: L'OrealInventor: Lucien Paul Aubert