Patents Assigned to L'Exploitation Des
  • Patent number: 3978218
    Abstract: Convulsions, pain, excessive histamine or hypotension in mammals are effectively relieved by the administration of dialkylaminoalkyl ethers of 2-alkoxy-3,5-dihalobenzenes. The compounds are relatively non-toxic in dosages required to alleviate such conditions.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: August 31, 1976
    Assignee: Societe d'Etudes Scientifiques et Industrielles de l'Ile-de-France
    Inventor: Michel Leon Thominet
  • Patent number: 3976780
    Abstract: Emesis in mammals is prevented by administration of 3-alkoxy-thianaphthene-2-carboxamides in a daily dosage ranging from 50 to 500 .mu.g/kg as determined by a physician or veterinarian. When administered to dogs in a daily dosage of 250 .mu.g/kg, 100% protection is obtained against vomiting normally induced by subcutaneous administration of apomorphine.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: August 24, 1976
    Assignee: Societe d'Etudes Scientifiques et Industrielles l'Ile-de-France
    Inventor: Michel Leon Thominet
  • Patent number: 3975434
    Abstract: 2,5-Disubstituted benzamides are produced by an efficient, effective and economical method by the utilization of 4-methyl 2-chloro 1-3-2-dioxophosphorinane as a catalyst.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: August 17, 1976
    Assignee: Societe d'Etudes Scientifiques et Industrielles de l'Ile-de-France
    Inventors: Gerard Bulteau, Jacques Acher, Jean-Claude Monier
  • Patent number: 3967421
    Abstract: A tie for connecting together parts of a structure, for example a stay for suspending the deck of a bridge from a tower, is constructed so that its length can be adjusted in a simple manner with the tie in service. The tie is made up from several stressed steel tendons, enclosed in a protective sheath filled with hardened material. At its ends the sheath incorporates anchoring devices for the transfer of the pull from the tie to the structure. The sheath forms a conduit whose ends are fixed securely to the anchoring devices. The conduit is isolated, throughout its length, from the structure so as to be capable of sliding longitudinally with respect thereto. At least one of the anchoring devices includes connection means for the active part of a tensioning apparatus and also includes means for bearing against the structure. This bearing means is adjustable on the anchoring device in the longitudinal direction of the tie.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: July 6, 1976
    Assignee: Societe Technique pour l'Utilisation de la Precontrainte
    Inventor: Marcel Emile Dufossez
  • Patent number: 3963128
    Abstract: The charging device for a blast-furnace is so constructed as to be lighter, smaller in overall size and cheaper than known devices. It is also more reliable and requires substantially less maintenance while it enables the charge distribution to be regulated.It comprises a rotating spout disposed in the blast-furnace and suspended from a tubular shaft. The spout carries a nose which is orientable in a vertical plane and has an actuating rod wich is mounted with a sealed joint to extend through the shaft. The drive and guide devices for this assembly are located outside the blast-furnace. The charge is fed to the device by two bins having a vertical axis so that there is less risk of the charge becoming excessively packed or jammed in the region of the discharge hoppers controlled by a shutter or like mechanism.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: June 15, 1976
    Assignee: Union Siserugique du Nord et de l'Est de la France
    Inventors: Henry Voituriez, Rene Aymard
  • Patent number: 3959570
    Abstract: A method of manufacture from a predetermined material, especially from a natural fibrous material and/or synthetic fibrous material of an article, in particular a sheet for printing or reproduction, which combines superior qualities of brightness, opacity, thermal stability, insolubility and lightness, said method consisting of laoding said material throughout its mass or superficially, with a filler product having a base of a methylene urea precipitate with a low degree of polymerization, obtained by the reaction of urea on formaldehyde in an acid medium.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: May 25, 1976
    Assignee: Centre Technique de l'Industrie des Papiers Cartons et Celluloses
    Inventors: Guy Jacquelin, Solange Sangenis
  • Patent number: 3959079
    Abstract: Proteins, particularly enzymes, are rendered insoluble in aqueous media by chemical activation of a polymeric support and crosslinking of the active proteins and the support by an inter-molecular bridging agent. The polymer which is used contains free hydroxyl or carboxyl groups and is halogenated and aminated in an organic solvent.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: May 25, 1976
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Orsan, les Produits Organiques du Santerre
    Inventors: Jean-Pierre Mareschi, Suzanne Sebesi, Emile Braye
  • Patent number: 3959477
    Abstract: The heterocyclic benzamides of this invention are particularly effective for the treatment of emesis in mammals. For example, when they are administered to dogs in relatively small dosage, they afford 100% protection against vomiting. They are also non-toxic in dosages for effecting complete control of vomiting.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: May 25, 1976
    Assignee: Societe d'Etudes Scientifiques et Industrielles de l'Ile-de-France
    Inventor: Michel Leon Thominet
  • Patent number: 3954381
    Abstract: A concentrated aqueous solution containing nitro compound is incinerated in a chamber to produce a hot dry vapor that is fed through a heat-exchange chamber through which the unconcentrated aqueous solution containing the nitro compounds is dripped so as to evaporate the greater portion of the water in this solution and produce the concentrate that is incinerated. The incineration is carried out at a temperature above 1000.degree.C and the hot vapors leave the heat exchange chamber in a dry state. Thereafter these hot vapors are scrubbed in a tower to remove any particulate material therefrom and are allowed to escape into the atmosphere as a nonpolluting gas.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: May 4, 1976
    Assignee: Societe Pour l'Equipement des Industries Chimiques Speichim
    Inventor: Paul Marecaux
  • Patent number: 3954748
    Abstract: The 3-alkoxy-thianaphthene-2-carboxamides of this invention are effective for the treatment of mammals afflicted with emesis. When administered to dogs in dosages of 250 .mu.g/kg, compounds of this invention give 100% protection against vomiting normally induced by subcutaneous administration of apomorphine. The compounds of this invention also favorably modify behavior disturbances in mammals.
    Type: Grant
    Filed: June 26, 1974
    Date of Patent: May 4, 1976
    Assignee: Societe d'Etudes Scientifiques et Industrielles de l'Ile-de-France
    Inventor: Michel Leon Thominet
  • Patent number: 3953641
    Abstract: This invention provides a light ply of parallel continuous high-performance filaments, and a method of obtaining same.The ply is characterized by a weight per unit surface of at most 450 g/m2, a thickness of at most 1 mm, a content of at least 85% by weight of high-performance fibers, a close structure, and furthermore comprising on at least one of its two faces fused synthetic yarns arranged transversely with respect to the direction of the high-performance filaments which hold the latter in place without passing through the ply from one face to the other.The plies thus obtained are used for the manufacture of high-performance composite materials.
    Type: Grant
    Filed: April 19, 1973
    Date of Patent: April 27, 1976
    Assignee: Societe Civile D'Etudes et de Recherches pour L'Obtention de Fibres Minerales (S.E.R.O.F.I.M.)
    Inventor: Paul Marquis
  • Patent number: 3947546
    Abstract: There is described a process for the purification of gaseous effluents containing oxides of sulphur before discharge of the gaseous effluent into the atmosphere.The process is carried out in at least two separate stages of oxidation using ozonised oxygen in the presence of a catalytic quantity of an ion of a transition metal and in a manner such that the ozonised oxygen does not contact the gaseous effluent. The ozone is generally employed in the proportion of one mole of ozone to 15 to 20 moles of impurity to be oxidised.
    Type: Grant
    Filed: May 25, 1973
    Date of Patent: March 30, 1976
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Jean Louise, Guy Senechal
  • Patent number: 3945916
    Abstract: An improved process for the purification of effluent is disclosed in which oxygenated effluent is introduced into a treatment zone in which a part of the total amount of biologically activated sludge used in the process is fixed on immersed bacterial beds or discs which are mobile and a further part of said sludge is in suspension in effluent undergoing treatment.
    Type: Grant
    Filed: June 7, 1974
    Date of Patent: March 23, 1976
    Assignee: L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
    Inventor: Paul Boulenger
  • Patent number: 3939072
    Abstract: A apparatus for obtaining monoperoxy sulphuric acid from hydrogen peroxide and sulphuric acid is disclosed. Hydrogen peroxide in the form of an aqueous solution with a concentration ranging from 35 to 100 percent and either concentrated sulphuric acid or fuming sulphuric acid are added simultaneously to a reaction vessel. The temperature of the reaction is maintained in the range -10.degree.C to +80.degree.C and the supply of the hydrogen peroxide and sulphuric acid to the reaction vessel is controlled so that the generation of the monoperoxysulphuric acid occurs when required and the quantity thereof produced is adjusted according to the quantity thereof required for reaction with another reactant, for example a pollutant, the concentration of the monoperoxysulphuric acid being substantially constant.
    Type: Grant
    Filed: June 17, 1974
    Date of Patent: February 17, 1976
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Eric Jourdan LaForte