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| Number | Title | Issue Date |
| 4832567 | Turbine stage A turbine stage which has a stationary blade set (204) followed by a moving blade set (205) which have blades (206, 207) mounted between a floor plate (201, 211) and a ceiling plate (202, 212). The surfaces of the ceiling plate (202, 212) and/or of the fl... | 05/23/1989 |
| 4830520 | Method of protecting a limited-displacement mechanical system against an agressive medium The mechanical system is surrounded by a protective chamber (33) and is filled with a liquid material which is transformed in situ into a resilient material that adheres to the inside walls of the chamber and which protects the operative surfaces of the m... | 05/16/1989 |
| 4778338 | Turbine stage A turbine stage which has a stationary blade set (204) followed by a moving blade set (205) which have blades (206, 207) mounted between a floor plate (201, 211) and a ceiling plate (202, 212). The surfaces of the ceiling plate (202, 212) and/or of the floor p... | 10/18/1988 |
| 4758756 | Vernier-type electrodynamic machine The invention provides a machine based on a known type of vernier electrodynamic machine comprising two parts separated from one another by an air gap arranged along a surface, said parts being movable relative to one another in one direction of said surf... | 07/19/1988 |
| 4757122 | Stabilized varnish without solvent for impregnating electric winding insulation Process for insulating by impregnation an electric winding with isocyanurate and oxazolidone cycles resins, in which one wraps around the conductors a glass cloth and porous mica paper tape loaded with a quaternary ammonium salt catalyzing the condensatio... | 07/12/1988 |
| 4715834 | Connector for a telescopic isolating switch A connector for electrical and mechanical connection to an overhead conductor (1) and for constituting the female portion of a telescopic isolating switch suitable for co-operating electrically with a male portion (6) of said switch. The connector include... | 12/29/1987 |
| 4689095 | Steel for manufacturing large forged parts The present invention provides a steel containing, by mass: from 0.16% to 0.22% carbon (C) less than 0.3% silicon (Si) less than 0.5% manganese (Mn) from 0.6% to 0.9% nickel (Ni) from 10.7% to 12.3% chromium (Cr) from 0.8% to 1.1% molybdenum (Mo) from 0.2% to 0.35% vana... | 08/25/1987 |
| 4675637 | Superconducting static machine having a magnetic circuit A superconducting static machine having a magnetic circuit includes a magnetic circuit core at mere ambient temperature and very low (cryogenic) temperature windings (1A, 1B) and one or more magnetic circuit cores at considerably higher temperatures. The ... | 06/23/1987 |
| 4670973 | Method of making an insulating stay An insulating stay comprises: a central core (1) having high electrical resistance and high tensile strength; a sheath (2) of high electrical resistivity and comprising fins (3) to offer a maximum resistance path to possible surface current losses; and en... | 06/09/1987 |
| 4657653 | Catalyst for a basic solution electrolyzer A catalyst for an electrolyzer of basic solutions. An electrode catalyst for an electrolyzer of basic solutions, the catalyst consisting of a compound based on a mixed oxide of molybdenum and of nickel, characterized by the fact that the said compound is ... | 04/14/1987 |
| 4647372 | Sludge belt apparatus for clarifying liquid charged with solid matter A cloudy liquid to be clarified is inserted, after twice receiving flocculation additive, into the bottom of a belt of sludge (4a) in a clarification chamber (4) via a plurality of injectors (22) distributed over the area of said chamber. Uniform distribu... | 03/03/1987 |
| 4639565 | High tension arc-blast circuit breaker A high tension arc-blast circuit breaker comprising at least one circuit breaker for breaking one phase of a polyphase current and disposed inside an insulating or metal envelope (70), said circuit-breaking device comprising a fixed first assembly having ... | 01/27/1987 |
| 4634340 | Equipment for controlling the extraction pressure of an extraction condensing turbine This invention relates to a device for controlling the extraction pressure of an extraction condensing turbine with pivotable vanes or vane parts of guide vane lattices arranged downstream of the steam extraction point(s) where the pivoting motion of the ... | 01/06/1987 |
| 4628693 | Casing for district heating turbine IP or HP casing for a turbine designed for cogeneration of electric power and heat for district heating purposes, comprising blades carried by a rotor (31) rotating in a stator (32), an inlet steam admission (8'), two exhausts (12' and 17') at different p... | 12/16/1986 |
| 4625503 | Method and device for stranding multifilament superconductor strands Multifilament superconductor strands of less than 1 mm diameter able to carry alternating current are stranded to a pitch of between 7 and 3 diameters, at a temperature above 200° C. and a speed between 30 and 5,000 rpm.... | 12/02/1986 |
| 4614459 | Floating tube apparatus for providing a sealed reversible and remote-controlled connection between ducts in particular underwater ducts A floating tube apparatus (7) for providing a sealed, reversible and remote-controlled connection between ducts, in particular underwater ducts or difficultly accessible ducts, provided with complementary connectors to connectors (8, 9) carried by the flo... | 09/30/1986 |
| 4608853 | Percussion apparatus Percussion apparatus having a compressed air inlet (3) and serving to impart percussive movement to a tool (10), the said tool (10) sliding inside an envelope (1) fixed to the apparatus and being terminated by a spherical portion (22), includes the improv... | 09/02/1986 |
| 4609304 | Apparatus for enabling a self-contained submersible module including a length of conduit for connection to a collector to be repetitively put into place and removed Apparatus for enabling a self-contained submersible module including a length of conduit for connection to a collector to be repetitively put into place and removed. The collector (3) is located on the sea bed, and said length of conduit (14) and said col... | 09/02/1986 |
| 4609992 | System for monitoring torsion damage to a composite line of shapes through a driving machine and a driven machine First and second devices (8,9) measure the speed of rotation at two widely separated points H and J along a line of shafts, e.g. through a turboalternator unit. Parameters representative of the opposing torque are determined by a third device which is res... | 09/02/1986 |
| 4597289 | Device for measuring stresses transmitted by a shaft, in particular to a drill bit The device for measuring stresses applied to a drilling tool comprises a removable instrument socket (2) secured by means of protuberances (15, 16) thereon to the wall of a compartment formed thereby in a shaft (OM) such as to make fast said socket and sa... | 07/01/1986 |
| 4594218 | Method of producing multifilament lengths of superconductor from ternary chalcogenides of molybdenum The present invention concerns superconductor lengths constituted by superconducting filaments based on a ternary chalcogenide of molybdenum (PbMo6 S8) assembled within a stabilizing matrix based on copper. The invention provides a m... | 06/10/1986 |
| 4592845 | Sludge belt method of clarifying a liquid charged with solid matter The present invention provides a sludge belt method of clarifying a liquid charged with solid material. After a flocculation additive has been added thereto, the charged liquid is conveyed to the bottom of a sludge belt in a clarification chamber (40) via... | 06/03/1986 |
| 4591776 | Synchronous machine with a superconducting voltage and speed regulator A synchronous electric machine has a voltage and speed regulator, comprising a stator provided with a secondary winding and a rotor provided with a primary winding, intended for connection to a feeder grid (operating as a motor) or a user grid (operating ... | 05/27/1986 |
| 4585369 | Mechanical connection means This connection means comprises a male connector (1) with a circular groove (5) and a female connector comprising a body (2), a cap (3) and a sleeve (4). The cap (3) hangs from the bottom end of body 2 within which it is able to partly slide. The cap has ... | 04/29/1986 |
| 4584081 | Apparatus for depositing metal on the rubbing parts of a turbine rotor The apparatus is particularly intended for depositing chromium on the bearing surfaces of bearings and end stops of turbine rotors made of chromium steel in order to obtain a good coefficient of friction thereon. The apparatus comprises a vat (1) having a... | 04/22/1986 |
| 4582279 | Modulation system for railway track circuits A modulation system for railway track circuits in which a modulated signal is applied to a section of track for the purpose of detecting the presence or absence of a train on the section. Such circuits are used to control signalling and they are vital to ... | 04/15/1986 |
| 4578608 | Coupling for electric motors A coupling for electric motors, with each motor comprising a rotor (62, 63) and a stator (60, 61) mounted in a tubular shell (4, 5). The coupling includes the ends (8, 8a) of the tubular shells to be assembled, shaped for end-to-end inter-fitting in a man... | 03/25/1986 |
| 4577074 | High voltage gas-blast circuit breaker The gas-blast type high voltage circuit breaker includes a first volume (27) in which gas pressure is increased due to heating by the breaking arc, the gas in this volume escaping to blow out the arc at current zero of the current being interrupted, and a... | 03/18/1986 |
| 4576512 | Rotary sluice gate A sluice gate is provided in the form of a vane wheel on a horizontal shaft mounted transversally across the sluice in which it is installed, said vanes being distributed about the shaft and being partially immersible for the purpose of gate operation, sa... | 03/18/1986 |
| 4570706 | Device for handling rods for oil-well drilling A device for handling rods for oil-well drilling, said device having a motor (21) associated with a reduction gear (22), the motor being suspended from a hook (8) and rotating a hollow vertical shaft (20) about its axis, said shaft being connected to a dr... | 02/18/1986 |
| 4565541 | Small deflection coupling for oscillating shafts A solid core (3) serves to transmit both torque and axial thrust (if any) between first and second end pieces (1 and 2) having longitudinal axes that may be up to 10° out of alignment. The core is close to being cubical in shape, having two interfitting ... | 01/21/1986 |
| 4560028 | Sound absorbing wall lining In sound absorbing lining, conduits (4) are provided, filled with a viscous damping fluid, and are in contact by their ends facing towards the rigid supporting wall (1) to which the lining is applied with flexible cells containing a gas and forming a read... | 12/24/1985 |
| 4556523 | Microbubble injector In a microbubble injector usable to separate materials of different density by flotation, a deflector wall deflects radially a flow of water exiting under pressure from an injector hole and containing dissolved air at the saturation concentration. This pr... | 12/03/1985 |
| 4554983 | Oscillating friction ring assembly for applying axial thrust to a shaft In a turbodrill, there is no guarantee that a rotary friction ring (1) is or will remain exactly at right angles to its shaft (2). Wear against a co-operating non-rotary friction ring (6) is thus uneven, and if the surrounding medium is drilling mud, smal... | 11/26/1985 |
| 4553004 | Puffer-type gas-blast circuit-breaker The circuit breaker has linear displacement moving contacts (3, 4) coupled to a fixed cylinder blast assembly (6) having two concentric pistons (7, 8). The first piston (7) is fixed to the moving contact equipment and is actuated by the circuit breaker co... | 11/12/1985 |
| 4546796 | Apparatus for supplying gas under pressure and distributing it between n outlets Apparatus for supplying gas under pressure and distributing it between a plurality, n, of outlets (15) comprises a piston (1) slidably mounted in a cylinder (2), with the piston (1) being fixed to a rod (6) which serves to position the piston in the cylin... | 10/15/1985 |
| 4536138 | Motor-driven pump assembly which can be used under water A motor-driven pump assembly which can be used under water and includes at least an electric motor (1, 2, 3)surmounted by at least one pump (4, 5) connected to the motor drive shaft so as to rotate, wherein the motor is electrically energized by means of ... | 08/20/1985 |
| 4531982 | Superconductor manufacturing process A superconductor manufacturing process provides electrical insulation and enhanced transverse electrical resistivity of multifilament superconductor strands based on Nb3 Sn. The process includes forming, during the early manufacturing steps in ... | 07/30/1985 |
| 4522094 | Automatic lamination cutting machine for electric shunt induction winding An automatic sheet metal cutting machine has a continuous supply of metal strips in adjustable lengths, at will. A reciprocating cutter cuts laminations from the metal strip and a receiver receives the laminations. The receiver includes a swiveling plate ... | 06/11/1985 |
| 4521657 | Circuit breaker with incorporated current transformer The circuit breaker comprises: a stand (1) at ground potential; a first insulating column (2) supported by said stand and filled with a highly dielectric gas; a second insulating column (4) coaxially supported by said first insulating column, said second ... | 06/04/1985 |
