Patents Assigned to Agence Nationale de Valorisation de la Recherche (ANVAR)
  • Patent number: 4195930
    Abstract: An optical Raman microprobe with laser excitation for illuminating a sample, comprising means for illuminating the sample with a pulsed or continuous laser radiation of selected frequency, a microscope furnishing an enlarged image of the sample, means for selecting the wavelengths of the re-emitted or scattered light and means for detecting the selected light. The microprobe further comprises means for obtaining a micrographic image of the sample, to provide a map showing the distribution of a selected polyatomic species in the sample, by isolating a radiation characteristic of such species in the Raman, Stokes or anti-Stokes spectrum. All points of the sample may be illuminated simultaneously, or successively one after the other, or simultaneously along a selected line or curve.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: April 1, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Michel M. Delhaye, Paul A. Dhamelincourt, Edouard F. da Silva
  • Patent number: 4195337
    Abstract: A control method is described in which, a plant, a reference model and a corrector are serially connected in the loop. The plant output is fed back and compared against a reference signal to develop an error signal. The reference mode operates upon the error signal with a predetermined transfer function to develop signals proportional to the error signal and various successive order derivatives of the error signal. The model output signals are applied to a corrector circuit which multiplies the respective model output signals by appropriate coefficients, and sums the resultant product signals to produce control signals for the plant. Provisions are also disclosed for varying the coefficients to provide self-adaptive control. Provisions for accommodating process delays are also provided.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: March 25, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (Anvar)
    Inventors: Pierre Bertrand, Michel Jamet, Jacques Strub, Eric Walter
  • Patent number: 4194189
    Abstract: The invention concerns a switching device using electrets. It comprises at least two electrodes and at least two electrets; control signals are applied between electrodes to cause a mobile element carrying an electret to pass from one rest position to the other.Application to electrical, pneumatic and optical switching.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: March 18, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jacques Lewiner, Gerard Dreyfus, Didier Perino
  • Patent number: 4192371
    Abstract: Thermal energy, especially solar heat, is converted into chemical energy by being used for the endothermic dissociation of a compound which is exothermically recombinable to release at least a substantial part of that energy at a time and/or location at which the original heat source is not readily available. One or more of the dissociation products are transported to the point of utilization, preferably after interim storage, and are there recombined with one another and/or with locally available reactants to restore the original compound which is then returned, again preferably after interim storage, to the dissociation site for a repetition of the process. The exothermic reaction at the recombination site may be used to decompose a locally available compound, e.g. water, for the purpose of liberating one of its constituents, e.g. hydrogen.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: March 11, 1980
    Assignees: Battelle Memorial Institute, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Jacques Derouette, Jacques Dartoy, Jacques Fournier, Bernard Vollerin
  • Patent number: 4191914
    Abstract: A method and apparatus for optimally controlling a DC motor used in the propulsion of a vehicle to both provide mechanical driving energy (or traction) to the vehicle during acceleration and to recover electrical energy from the motor when the vehicle is decelerating. The armature and field currents of the DC motor are continuously adjusted for different loads at all speeds of rotation in the traction mode and when in the energy recovery mode to different resistance torques.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: March 4, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Jean-Francois Lecluse
  • Patent number: 4188303
    Abstract: The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators.These electrical insulators are formed of a macromolecular material in which is incorporated a chelate which is a derivative of an organic compound of general formula: ##STR1## wherein: R is CH.sub.2 COOM or --OH,M is Na or H,x is an integer from 1 to 4,n is an integer from 0 to 4,the metal chelate being present in the material in an amount sufficient for promoting the extinction of partial discharges, said amount not exceeding a value which would alter the physical properties of the insulator such as the volume resistivity thereof.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: February 12, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean Barge, Raymond Catte, Gilbert Chapelet, Ai Bui, Pierre Dejean, Claude Huraux, Christian Mayoux
  • Patent number: 4188131
    Abstract: The invention relates to self-scraping mixers comprising a fixed case, at least two blades whose cross-sections are defined by at least two arcs of a circle of the same length and the same radius, and means for rotating said blades so that their edges scrape the whole area of inner face of the case as well as that of the outer faces of each blade. According to the invention, the mixers are of a conical type.
    Type: Grant
    Filed: July 6, 1978
    Date of Patent: February 12, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Jean-Claude Duguet
  • Patent number: 4187124
    Abstract: A process and apparatus for doping a substrate by ion implantation or discharge. The process comprises the steps of maintaining an electric discharge in an evacuated enclosure containing a gaseous compound of a dopant for creating ions of said dopant; extracting and accelerating a beam of said ions from said atmosphere toward said substrate under a voltage selected for achieving a predetermined doping profile; and circulating said substrate transversely to said beam.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: February 5, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Claude Muller, Jean-Pierre Ponpon, Joseph Kurek, Paul Siffert
  • Patent number: 4186194
    Abstract: Water soluble agents effective as immunological adjuvants for stimulating in the host the immune response to various antigens, comprising an acyl-muramic acid group, wherein acyl means acetyl or glycolyl, and a short peptide chain linked to said acyl-muramic acid group, the first and second amino acids of said peptide chain being preferentially alanine and glutamic acid respectively.
    Type: Grant
    Filed: October 22, 1974
    Date of Patent: January 29, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Arlette Adam, Francoise Audibert, Louis Chedid, Jean Choay, Rita Ciorbaru, Fabrielle Ellouz, Dominique Juy, Pierre Lefrancier, Claude Merser, Jean-Francois Petit, Pierre Sinay, Edgar Lederer
  • Patent number: 4185096
    Abstract: The novel derivatives of pepstatin have the general formula (I) below in which X, Y and Z, are identical or different, and each represent an amino-acid selected from arginine, glutamic acid, aspartic acid, lysine, histidine and valine, the carboxyl function of the terminal amino-acid being esterifiable. The indices a, b and c are each equal to zero or 1, the sum a+b+c being equal to 1, 2 or 3. The invention also includes the water soluble salts and their preparation, and the compositions containing them. ##STR1## These novel products are particularly useful in the diagnosis and treatment of arterial hypertension due to the action of renine.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: January 22, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Bertrand Castro, Joel Menard, Genevieve Evin, Pierre Corvol
  • Patent number: 4185089
    Abstract: The adjuvant is 2-(p-amino-phenyl-2-acetamido-2-deoxy-3-O-D-glucopyranosyl)-D-propionyl-L- alanyl-D-isoglutamine, which compound in its .beta. glucoside form, corresponds with the formula ##STR1## It is notably useful for favoring immunitory responses relative to antigens of low immunogenicity.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: January 22, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Marcel Derrien, Edgar Lederer, Francoise M. Audibert, Louis Chedid, Jean Choay, Pierre Lefrancier
  • Patent number: 4183238
    Abstract: A double-acting press for precision deep-stamping requiring a plurality of passes comprises two tool assemblies arranged coaxially facing one another. The first tool assembly is constituted by a hollow stem double-acting hydraulic stamping jack, the head of which contains a cascade of annular dies, one for each pass required, of internal size decreasing from the first pass die situated at the free end of the head. The first pass die bears on its front leading surface the male blank-cutting punch and the spacing of the leading surfaces of two successive dies is at least equal to the height of the blank after its passage through the first of said two dies. A second hydraulic jack, called a central jack whose body is fast to and coaxial with that of the stamping jack has its stem passing coaxially through the hollow stem and the head of the latter.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: January 15, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Edgard J. Maillet
  • Patent number: 4184129
    Abstract: A system for transmitting data between distant locations comprises a modem at each location and a communication channel, typically a telephone line, whose transfer function has a principal component whose variation is slow and a second component whose variation is faster, but whose action is lesser. A correction device is located in the modem at the output of the channel and comprises an equalization filter constructed to compensate for the principal component and a digital adaptive network having a few coefficients and a low time constant, compatible with the frequency of the second component. The coefficients of the digital network may be adapted independently of those of the equalization filter.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: January 15, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Odile Macchi nee Danjon, Michel Levy, Cesar Macchi
  • Patent number: 4177874
    Abstract: The invention relates to active acoustic absorber devices for absorbing the sounds which are emitted by a emitter source and which propagate therefrom, along a pipe. An absorber according to the invention comprises an acoustic tripole which is composed of two auxiliary acoustic sources which constitute a dipole and of a third auxiliary source which constitutes a unipole, these three sources being located in the same acoustic chamber, which chamber is disposed outside the pipe, opens therein through three orifices aligned parallel to the longitudinal axis of the pipe and comprises a transverse plane of symmetry perpendicular to the axis of the pipe.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: December 11, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Theophile A. Angelini, Bernard J. P. Nayrole, Maurice J. Jessel, Georges Canevet, Gerard A. Mangiante, Bernard Carbone
  • Patent number: 4178563
    Abstract: A system for generating an electrical signal of energy equal to at least 0.5 joule for a time equal to 100 ns. This system comprises capacitor means of the discrete type for energy storage and adapted to be charged to a high voltage and a discharge circuit for said capacitor means comprising in series an electronic switch for controlling the discharge and energy transfer means comprising a first and second output terminals normally intended to be connected to the respective opposite terminals of a load. The energy transfer means comprise flat line means. The first and second metal coatings of these flat line means are connected respectively to the first and second output terminals.
    Type: Grant
    Filed: November 9, 1976
    Date of Patent: December 11, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Philippe Huet, Roger H. Milleon, Philippe Leprince
  • Patent number: 4175334
    Abstract: A method for freeze drying a previously frozen product by placing the product in a fluidized bed of a finely divided solid purticulate water vapor adsorbent and adjusting the partial pressure of water vapor to a level at which frozen water in the product will sublime.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: November 27, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Henri Gibert
  • Patent number: 4175542
    Abstract: Comprising a plurality of assembled solar energy collector elements. Cold liquid is supplied at one end and water heated by the solar energy is drawn off at the other end of the device. The liquid circulates through the device in contact with an absorbent mat of intermingled fibres of dark color which is exposed to the solar radiation through at least one translucent sheet which creates a glasshouse effect. The mat guides the flow of liquid by the effect of capillarity and gravity during the heating of the liquid.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: November 27, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Georges Duchene
  • Patent number: 4176002
    Abstract: A method and apparatus for controlling a heated bath of molten material to obtain controlled solidification, wherein the molten bath is kept in constant rotational movement relative to the solid portion of the material being treated and the mechanical action due to the viscous friction which develops in the bath is detected and thereby controlled, said method being applicable to the floating zone method and the Czochralsky crystal drawing method and being capable of producing ingots of high dimensional regularity.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: November 27, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Michel Quenisset, Rober Naslain, Paul Hagenmuller
  • Patent number: 4173797
    Abstract: A hip prosthesis comprising a thin metal cotyloid cup, substantially spherical in form, the dimensions of the outer surface of which are substantially equal to those of a the cotyloid cavity, and which is provided with a peripheral flange for abutting on the bone around the cotyloid cavity and for preventing the cup from pivoting; a thin femoral cup, also made of metal, extended by a skirt and substantially in the form of a finger guard; and a relatively thick intermediate cup made of plastics material, having a spherical outer surface adapted to pivot in the cotyloid cup, and an inner surface comprising a spherical central part extended by a cylindrical portion which fits on the femoral cup so as to allow said latter to move only in rotation about the axis of symmetry of the cups.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: November 13, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Frantz Langlais, Michel Postel
  • Patent number: 4172764
    Abstract: The cell walls are removed from two distinct auxotropic mutant strains of yeast. The protoplasts thus obtained are fused and the cell walls regenerated. The strains obtained are cultured on a medium where the original auxotrophs cannot develop and the hybrid or recombinant strains are recovered. The strains obtained by the process are useful for preparing yeast proteins.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: October 30, 1979
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Henri Heslot, Anne Provost, Philippe Fournier