Patents Assigned to ANVAR
-
Patent number: 4212718Abstract: The process enables the simultaneous production of hydroxytelechelic polymers and oligomers by the radical route. At least one ethylenically unsaturated monomer is polymerized in the presence of hydrogen peroxide under the effect of ultra-violet radiation. The polymerization is carried out in a diluent medium comprising essentially an alcohol. The process can be operated to produce polymers having average molecular weights between one hundred and one million and to produce selectively unimodal, bi-modal or multi-modal distributions of molecular weights.Type: GrantFiled: April 17, 1978Date of Patent: July 15, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Christian Pinazzi, Jean-Claude Lenain, Jean-Claude Brosse
-
Patent number: 4211821Abstract: Thin monocrystalline like layers and articles comprising such layers as well as methods of making the layers and articles are disclosed. The layer have a thickness on the order of a micron and have a surface area on the order of 1 cm.sup.2. The layers are made out of a given material and are grown on a layer made of a material different from the given material which rests on a crystal mass made of either the same material or of a material having the same or a related structure as the crystal to be grown.Type: GrantFiled: June 13, 1977Date of Patent: July 8, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventor: Armand Hadni
-
Patent number: 4210793Abstract: The invention relates to a microwave applicator intended to radiate a uniform power intensity to an elongated zone of which the frequency is in a predetermined range situated around a central frequency F. This applicator includes a wave guide 1 provided with a plurality of resonant slots 4 of which the centers are separated by a distance of an even number of half wave lengths .lambda.g/2, if .lambda.g is the length of guided wave corresponding to the central frequency F. The shunt slots are aligned on a longitudinal axis situated in an axial plane of the guide and are each associated with an inside post arranged in the guide on the transverse axis of said slot, so that the various slots radiate with essentially uniform amplitude. The wave guide is provided with outside posts of adjustable height penetrating into each inside post through the guide and flanges rising above the guide at the periphery of the face provided with shunt slots.Type: GrantFiled: March 6, 1978Date of Patent: July 1, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventor: Christian Fournet-Fayas
-
Patent number: 4209162Abstract: A device for mitigating the splashing of droplets of molten metal during the pouring of same into a mould comprises a strip or strips of material which form a system of polygonal cells. The device is for vertical location with the strips edgewise in the base of a mould and fulfills the function of either a splash-guard when casting direct or a float when bottom-casting.Type: GrantFiled: January 17, 1978Date of Patent: June 24, 1980Assignee: Agence Nationale de valorisation de la Recherche (ANVAR)Inventor: Raymond H. Petiau
-
Patent number: 4208675Abstract: A method and apparatus for positioning an object in space in such a manner as to permit duplication of the positioning in a precise position wherein three characteristic points on the object wherein the coordinates of the points are determined and are electrically synthesized for generation of a signal for reproducing the points on the coordinates, and utilizing a television camera and monitor forming an image of the object on the screen and causing the points of the object to coincide with the reference points by means of a photosensitive sensor in such a manner that the characteristic points on the body are displaced so as to coincide with the synthesized points on the television screen.Type: GrantFiled: March 20, 1978Date of Patent: June 17, 1980Assignee: Agence Nationale de Valorization de la Recherche (ANVAR)Inventors: Jean Bajon, Michel Cattoen, Jacques Douchez, Jean-Pierre Morucci
-
Patent number: 4207729Abstract: Textile strands or threads with no twist at least partially coated by wax are formed by immersion in a molten wax while in a false twisted state. The coated strands or threads are then cooled and the wax solidifies.Type: GrantFiled: May 26, 1976Date of Patent: June 17, 1980Assignees: Agence Nationale de Valorization de la Recherche (ANVAR), Agence Nationale de Valorisation de la Recherche (A.N.V.A.R.)Inventors: Pierre E. Exbrayat, Richard A. Schutz
-
Patent number: 4207489Abstract: The extraction electrode consists of a metallic screen provided with an opening and placed within a vacuum chamber in front of an ion source, the screen being brought to a negative potential with respect to the source. Displacement of the electrode is controlled from the exterior of the chamber by two mechanical systems for independent displacement of the two lateral sides of the screen. Each system comprises a deformable parallelogram pivotally coupled to a member for supporting one side of the screen and to a member which is slidably mounted on a guide column, and a mechanism for controlling the deformation of the parallelogram by means of a link-arm rigidly fixed at one end to a toothed wheel in mesh with an endless screw and control rod which is accessible from the exterior of the chamber. The invention is primarily applicable to the construction of ion implanters, especially for the fabrication of semiconductors.Type: GrantFiled: November 28, 1978Date of Patent: June 10, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Jean Camplan, Jacques Chaumont, Robert Meunier
-
Patent number: 4205625Abstract: A chamber for breeding and raising marine animals such as fish. The chamber is usable particularly in open water and is composed of a flexible film of plastic material which is inert with respect to a marine environment. The arrangement includes a pump for introducing water under a pressure greater than the surrounding environment into the chamber, and discharge openings through which the water discharges. A farm for raising marine animals can include at least one such chamber connected to a support spar, in the water, and extending vertically. Torus shaped water inflatable rims can be used to maintain the shape of a chamber.Type: GrantFiled: May 16, 1978Date of Patent: June 3, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventor: Arnaud Muller-Feuga
-
Patent number: 4206287Abstract: A vaccine for epidemic influenza. An antigen and compositions comprising same which create antibodies in animals and humans effective against Hong Kong subtype influenza. Methods for creating virus types having the desired antigenic properties. The vaccine causes immunity against the forthcoming Hong Kong subtype influenza.Type: GrantFiled: November 8, 1976Date of Patent: June 3, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Claude Hannoun, Stephen F. de St. Groth
-
Patent number: 4204964Abstract: Continuous centrifugal filtering device for precipitation, washing or draining. The rotative cylindrical sleeve is constituted of a helical winding with continuous coils of a long strip mounted in a rotative case including cylindrical rollers engaging the exterior of the cylndrical sleeve, and driven in rotation at slow speed, all in the same direction. The strip forming the cylindrical sleeve is looped in an endless assembly by a return coil which extends from one extremity to the other of the helical winding so that the porous cylindrical sleeve thus formed advances slowly axially renewing itself constantly. The device can be used for making coffee.Type: GrantFiled: June 1, 1978Date of Patent: May 27, 1980Assignees: Societe Normande de Services, Agence Nationale de Valorisation de la Recherche (ANVAR), Societe Generale pour le Financement de l'Innovation, Soginnove, Bertrand Cor, Arnaud GastinneInventor: Serge Cailliot
-
Patent number: 4204435Abstract: The invention relates to a probe for a device forming images from ultrasounds, in particular for the internal examination of the human body. The probe comprises transducers distributed in a curved array providing the possibility of a sectorial angular scanning and of generating ultrasonic beams converging towards a localized area where is arranged either a screen opaque to ultrasounds and formed with one or two openings in the vicinity of the center of converging area, with one or two lenses for ultrasounds in said opening or openings, either one or two electronic lenses formed with means for converting in parallel ultrasounds into electric signals, apparatus for differentially delaying the electric signals and apparatus for converting in parallel the electric signals, after a delay, into ultrasounds.Type: GrantFiled: April 27, 1978Date of Patent: May 27, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Edouard Bridoux, Christian Bruneel, Francis Haine, Guy Thomin
-
Patent number: 4201768Abstract: The invention relates to a process for obtaining agents having mitogenic and/or adjuvant properties, from Nocardia cells.According to this process Nocardia whole cells are subjected to a rupturing treatment of their walls within an aqueous medium, particularly distilled water. After the separation of the non-ruptured cells and of the wall fragments of the ruptured cells, mitogenic agents are extracted from the remaining aqueous phase. The fractions obtained are useful as laboratory reagents and for the production of medicamentous compositions in which they are associated with a pharmaceutical vehicle.Type: GrantFiled: March 28, 1977Date of Patent: May 6, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Rita Ciorbaru nee Sfartz, Constantin Bona, Louis Chedid, Edgar Lederer, Jean-Francois Petit
-
Patent number: 4200213Abstract: A percussion apparatus, for example for driving nails or staples, having an auxiliary piston which when released thrusts a main operating piston to an intermediate position. The auxiliary piston transfers a metered quantity of gaseous fuel together with combustion supporting air to a space between the main piston and cylinder head separating the auxiliary piston cylinder from the main piston cylinder. The explosive mixture in the space is then ignited and the main piston is thrust in a first direction displacing a driver member and simultaneously the auxiliary piston is thrust in the opposite direction to its initial position where it is retained until released to start another operating cycle; the main piston automatically returns to its initial position as the combustion gases are exhausted to the atmosphere.Type: GrantFiled: November 2, 1978Date of Patent: April 29, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventor: Maurice Liesse
-
Patent number: 4197993Abstract: The installation comprises at least one inclined thermal enclosure, forming all or part of the roofing of the dwelling, bounded by an inner roof element, essentially constituted by a collector material of very low thermal mass, absorbing radiation of the solar radiation type of wave length comprised between 0.25 and 4 microns. An outer covering element also of very low thermal mass, is essentially constituted by a material, preferably transparent to solar radiation and behaving as an opaque body to infra-red radiation of wave length comprised between 4 and 30 microns and so capable of emitting this radiation. This outer covering element has water and air sealing properties. This thermal enclosure is connected at its upper part to an upper duct forming a chimney directed upwards and provided with a closure member and, at its lower part, to a lower duct directed downwards and opening into the dwelling through at least one orifice.Type: GrantFiled: June 16, 1978Date of Patent: April 15, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Felix Trombe, Jacques Michel
-
Patent number: 4198572Abstract: The invention relates to a regulated apparatus for the generation of electrical energy.A wind generator comprises a propeller having fixed blades and a generator connected by a transmission to the propeller and having sets of main and secondary brushes. The hub of the propeller comprises a rotor of an eddy-current brake whose inductor stator is supplied by a current delivered, starting from a certain speed, by the secondary brushes of the generator which are angularly shifted relative to their neutral position.Type: GrantFiled: June 14, 1977Date of Patent: April 15, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventor: Michel Kant
-
Patent number: 4197488Abstract: An electrical machine having an armature capable of both rotational movement and translational movement and which can be driven by alternating current or by stepwise control pulses. The coil of the machine is divided into two half-coils which are electrically separated and which each act on a separate group of pole teeth. The armature likewise has two groups of pole teeth, each of which cooperates with a group of teeth of the coil. The teeth are symmetrical with respect to the median plane of the machine, and the coil teeth lie at a different angle with respect to that median plane than do the armature teeth. The two half-coils are separately energized to produce moving poles in space.Type: GrantFiled: April 15, 1977Date of Patent: April 8, 1980Assignee: Agence Nationale de Valorisation de la Recherche (Anvar)Inventor: Michel Kant
-
Patent number: 4197010Abstract: A hologram of a wave front reflected by the end of a primary standard, either produced by exposure of a plate in the apparatus or synthesized by computer, is illuminated by a laser with a direct beam and with a beam reflected from the end of a standard to be measured mounted in a reference position. Interference fringes are produced on a screen and the standard to be measured is moved from a reference position to a position in which the reflected wave front coincides with the wave front recorded by the hologram while the fringes are counted to determine the difference in length.Type: GrantFiled: October 6, 1977Date of Patent: April 8, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Patrick Meyrueis, Michel Grossmann
-
Patent number: 4195930Abstract: 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: GrantFiled: July 5, 1977Date of Patent: April 1, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Michel M. Delhaye, Paul A. Dhamelincourt, Edouard F. da Silva
-
Patent number: 4195337Abstract: 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: GrantFiled: May 24, 1978Date of Patent: March 25, 1980Assignee: Agence Nationale de Valorisation de la Recherche (Anvar)Inventors: Pierre Bertrand, Michel Jamet, Jacques Strub, Eric Walter
-
Patent number: 4194189Abstract: 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: GrantFiled: March 29, 1978Date of Patent: March 18, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Jacques Lewiner, Gerard Dreyfus, Didier Perino