Patents by Inventor Jean-Pierre Vasseur
Jean-Pierre Vasseur 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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Publication number: 20010004841Abstract: A hollow metal tube having a sharp-angled indentation that is made without removing any material and without deforming the external diameter while conserving the fiber orientation of the metal and maintaining a constant thickness of the tube. The process of forming the sharp-angled indentation comprises the steps of, providing a riveting machine, the riveting machine having an epicycloid mechanism and a spherical joint and comprising a riveting head fitted to a spindle, operating in conjunction with pressing devices and a fixed half-clamp, replacing the spindle of riveting machine with a sharp angled former adapted to the profile of the indentation to be made and to the former's sharp angle, inserting the tube on which indentations are to be made between the former and the fixed half-clamp, and activating the pressing devices to cause movement of the spindle in order to form the sharp-angle indentation in the tube.Type: ApplicationFiled: January 8, 2001Publication date: June 28, 2001Inventors: Jean-Pierre Vasseur, Claude Garconnet, Dominique Garconnet
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Patent number: 6170313Abstract: A process by which it is possible to make a sharp-angled indentation on hollow tubes without removing any material, maintaining a constant thickness of tube and also without deforming the external diameter and conserving the fiber orientation of the metal, characterized by the fact that a riveting machine is used, which itself is a well-known type of machine, comprising a riveting head fitted to a spindle operating in conjunction with pressing devices and a fixed half-clamp. The riveting head of this machine is replaced by a former adapted to the profile of the indentation required and in particular to its sharp angle. The tube in which indentations are required (1) is positioned between the former and the fixed half-clamp and the pressure devices are operated, causing movement of the spindle in order to allow indentation of the tube (1).Type: GrantFiled: May 18, 1999Date of Patent: January 9, 2001Assignees: Etablissements GarconnetInventors: Jean-Pierre Vasseur, Claude Garconnet, Dominique Garconnet
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Patent number: 4796197Abstract: Automated apparatus for carrying out biological, biochemical or physicochemical determinations, which consists essentially of an automatic machine for the preparation of solutions intended for these determinations, and of a measuring apparatus, these being connected to a single computer. This apparatus is intended in particular for the determination of antibiotics by turbidimetry.Type: GrantFiled: April 24, 1986Date of Patent: January 3, 1989Assignee: Rhone-Poulenc S.A.Inventors: Jean Lissot, Jean-Pierre Vasseur, Jean-Pierre Thomas, Claude Pascal
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Patent number: 4765888Abstract: An artificial kidney comprising a haemodialyser 16 connected to a dialysis liquid circuit. The latter can be entirely integrated, that is to say that the functions previously performed by a plurality of self-contained members connected to one another are now performed by a common unit consisting of a very small number of multifunctional components. This common unit is preferably disposable. A small console groups together, with their electric circuits, the re-usable means for controlling and checking the artificial kidney.Type: GrantFiled: October 23, 1985Date of Patent: August 23, 1988Assignee: Hospal IndustrieInventors: Bernard Barthe, Georges Vantard, Jean-Pierre Vasseur
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Patent number: 4684613Abstract: A device for automatically carrying out the withdrawal and deposition of core samples of semi-solid media in which one or more hollow punches are mounted for movement in three mutually perpendicular directions, so that the punch can be brought above and lowered into the media, a vacuum applied to suck the media into a chamber in the punch, the punch then being raised and moved to a position above a second media, the vacuum then being removed and compressed air applied after the punch has been lowered over the other media, thereby to push the sample removed from the first media from the punch. The operations can all be controlled automatically.Type: GrantFiled: April 19, 1985Date of Patent: August 4, 1987Assignee: Rhone-Poulenc SanteInventors: Genevieve C. Barrere, Marie-Helene Beydon, Lionel Drugeault, Jean-Pierre Vasseur
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Patent number: 4623450Abstract: An artificial kidney comprising a haemodialyser (a) associated with and preferably integrated into a common unit D adapted to be connected simultaneously to a patient P, to a container 34 of fresh and/or used dialysis liquid, and to a controlling and checking console (h). The disposable common unit can perform all the functions necessary for a treatment. These functions are not performed by self-contained members, but by a small number of flexible multifunctional parts, such as elements 14 and 15, each cooperating with rigid parts such as parts 10, 11, 12 and 13.Type: GrantFiled: August 6, 1985Date of Patent: November 18, 1986Assignee: Hospal IndustrieInventors: Georges Vantard, Gilbert Clement, Jean-Pierre Vasseur
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Patent number: 4454749Abstract: For a fluid chromatography apparatus including a precolumn and an analytical column, a device is provided with means for operably connecting said precolumn and column, said connecting means comprising a body member provided with support surfaces for a column inlet and a precolumn outlet, and said body member including a plurality of passages adapted to independently functionally interconnect said precolumn outlet and said column inlet with each other, and individually independently with fluid inlet and/or outlet means, either internally or externally.Type: GrantFiled: September 24, 1981Date of Patent: June 19, 1984Assignee: ProlaboInventors: Claude Guillemin, Jean Lissot, Jean-Pierre Vasseur
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Patent number: 4286743Abstract: A method of soldering a first, vitreous component for example a sheet to at least one second component which is vitreous or metallic, in which the or each vitreous component is metallized in the joint region(s), the components are assembled together in the required relationship where they may be held by a clamp and the joint region(s) of the assembly is or are dipped in a bath of molten solder to bond it together as a unit. Such a unit may be constituted as an envelope containing one or more electrical circuit components, as a fluid flow directing unit or as a pane for incorporation into a leaded window.Type: GrantFiled: October 17, 1978Date of Patent: September 1, 1981Assignee: BFG GlassgroupInventors: Jean-Pierre Vasseur, Michel Laurent, Jean-Joseph Loriau, Andre Delhaute
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Patent number: 4181816Abstract: In a circuit for producing pseudo-random sequences of digits, using at least one switch to the inputs of which sequences of digits are applied, the control signals determining the connections established by the switch between its inputs and its outputs, are made a function of signals previously supplied by at least one of the outputs of the switch.Type: GrantFiled: April 3, 1969Date of Patent: January 1, 1980Assignee: Thomson - CSFInventor: Jean-Pierre Vasseur
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Patent number: 4179663Abstract: In a binary system, for example, the "0" and the "1" are rendered more equi-probable in the output pseudo-random sequences of a switch controlled in a pseudo-random way by feeding to the inputs of the switch input sequences which are two and two complementary, i.e. the sum of two simultaneous digits of two such sequences is always 1.Type: GrantFiled: April 3, 1969Date of Patent: December 18, 1979Assignee: Thomson-CSFInventor: Jean-Pierre Vasseur
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Patent number: 4091416Abstract: An apparatus for producing displays in the form of areas of well-defined illumination levels, in order to display a body subjected to penetrating radiation, and in particular X rays or gamma rays is provided. In this apparatus, the image is divided into two regions, the first corresponding to a narrow range of levels and the second, to a much larger range of levels. Means are provided in order to clearly differentiate the respective appearances of these two regions.Type: GrantFiled: September 9, 1975Date of Patent: May 23, 1978Assignee: Thomson-CSFInventors: Jacques Riethmuller, Jean Pierre Vasseur
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Patent number: 4065671Abstract: The invention relates to X rays detection devices, either for dose metering purposes or for display purposes. The device in accordance with the invention comprises a thin plate of ferroelectric material upon the faces of which electrical charges are deposited. X ray radiation produces an increase in the conductivity of the material and, consequently, modulation of the distribution of the charges, determination of which furnishes the desired detection.Type: GrantFiled: March 30, 1976Date of Patent: December 27, 1977Assignee: Thomson-CSFInventors: Christian Mayeux, Francois Micheron, Jean Pierre Vasseur
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Patent number: 3937965Abstract: A novel apparatus for radiographic examination purposes comprises an x-ray source emitting a flat beam. Detectors are arranged in the plane of the beam in order each to pick up part of the beam. To avoid the Compton effect, each detector is associated with it an auxiliary detector which only receives the rays emitted by the Compton effect. An electrical circuit forms a predetermined linear combination of the signals respectively picked up by each detector and the associated auxiliary detector, this in order to prevent the errors which are due to the Compton effect when the beam passes through the body being analysed.Type: GrantFiled: October 29, 1974Date of Patent: February 10, 1976Assignee: Thomson-CSFInventor: Jean Pierre Vasseur