Patents by Inventor Marcel A. Garnier
Marcel A. Garnier 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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Patent number: 6619377Abstract: The invention concerns a method which consists in: simultaneously subjecting the meniscus of the molten metal present in the ingot mould to the action of an axial alternating electromagnetic field tending to provide it with a general dome-like shape and to the action of a transverse direct electromagnetic field designed to attenuate the surface agitation of the meniscus. The implementing installation comprises an ingot mould (1) with cooled assembled plates (2, 3 and 4, 5) for casting metal slabs, an alternating current coil (17) enclosing the ingot mould at the meniscus (12) of the molten metal to produce an axial magnetic field, collinear with the casting axis (11), and a direct magnetic field winding passing through the large plates of the ingot mould at the meniscus (12) perpendicular to the casting axis.Type: GrantFiled: August 13, 2002Date of Patent: September 16, 2003Assignee: The Japan Research and Development Center for MetalsInventors: Jacqueline Etay, Marcel Garnier, Yves Delannoy, Jean-Marie Galpin, Jean-Yves Lamant, Pascal Gardin
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Patent number: 6174570Abstract: The invention concerns a method for metal coating of fibres (15) by liquid process, said method being particularly but not exclusively designed for coating in thick and even layers (22) with metals and metal alloys having high melting point and reactivity. Said method is characterised in that it consists in moving along the stretched fibre (15) in the liquid metal maintained in levitation in a well (1), said fibre (15) passing through orifices (6, 7) provided in the well (1) wall (3), said orifices (6, 7) being arranged on either side of the liquid metal at places where the liquid metal (10) is not in contact with said wall (3).Type: GrantFiled: September 22, 1999Date of Patent: January 16, 2001Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “SNECMA”Inventors: Bruno Jacques G{acute over (e)}rard Dambrine, Marcel Garnier, Jean Hamburger, Yves Christian Louis Alain Honnorat, Ludovic Edmond Camille Molliex, Jos{acute over (e)} Feigenblum, G{acute over (e)}rard Weiss
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Patent number: 5127941Abstract: The invention relates to a process for separating the constituents of an alloy, especially an alloy comprising a refractory base metal and at least one nonrefractory additive metal, which consists in:heating said alloy by means for preferably continuous melting and casting of metals, while avoiding any chemical action on said alloy, and to at least one temperature and under controlled atmosphere permitting the boiling of at least one additive metal,collecting the distillation vapors of at least one additive metal, andcollecting, at the exit of said means for preferably continuous melting and casting, the substance resulting from the removal of at least one additive metal from the alloy.It also relates to a device for separating the constituents of an alloy comprising a refractory base metal and at least one nonrefractory additive metal.Type: GrantFiled: June 21, 1990Date of Patent: July 7, 1992Assignee: Jeumont-SchneiderInventors: Jean V. D. B. D'Obrenan, Marcel Garnier
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Patent number: 5102449Abstract: In a method of remelting metallic materials, particularly nickel-based superalloys, in which the melting operation is carried out in a cooled copper crucible under clean vacuum conditions by means of electromagnetic inductors, the magnetic field applied to the mass of molten metal has a frequency between 50 Hz and 5.times.10.sup.6 Hz, preferably between 5.times.10.sup.3 Hz and 5.times.10.sup.5 Hz, so as to effect simultaneously electromagnetic stirring of the liquid metal and a surface concentration at the cold walls of the mass to be recast of all the non-conductive particles, especially ceramic inclusions, thereby achieving an inclusion decanting.Type: GrantFiled: September 4, 1991Date of Patent: April 7, 1992Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."Inventors: Christian A. B. Ducrocq, Marcel Garnier, Gerard Lemaitre, Pascal J. Rivat, Pierre M. Vernay
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Patent number: 5074532Abstract: An electro-magnetic nozzle device for controlling the jet of liquid metal tapped at the outlet of a melting crucible comprises an electro-magnetic inductor and a magnetic field concentrator which surrounds the outlet of the crucible and is constituted by at least four three-dimensional sectors arranged evenly around the crucible outlet and separated from each other by radial slits, each sector having an internal water-cooled cavity, radially inner and outer walls of which the inner wall is of less height than the outer wall, and windings disposed in the inner and outer walls forming an electro-magnetic inductor.Type: GrantFiled: July 10, 1990Date of Patent: December 24, 1991Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."Inventors: Christian A. B. Ducrocq, Marcel Garnier, Pascal J. Rivat, Maurita Roscini
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Patent number: 5058127Abstract: The present invention relates to a cold crucible adapted to be discharged through the bottom. The crucible consists of a conductive wall consisting of a plurality of longitudinal hollow segments which are electrically insulated at least partially from one another and which are by virtue of the longitudinal hollows adapted to be traversed internally by a cooling fluid and which crucible is adapted to be placed inside an inductor and in which the wall is provided in its bottom part with an aperture inside which there is a removable occluding member, formed of segments which member is cooled like the wall of the crucible. The crucible is used in the processing of materials of high purity which can be recovered in the liquid state in a convenient complete and rapid manner.Type: GrantFiled: April 16, 1990Date of Patent: October 15, 1991Assignee: Compagnie Europeenne du Zirconium CezusInventors: Marcel Garnier, Isabelle Gleizes, Patrick Paillere, Pierre Vernay
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Patent number: 4974660Abstract: The process and apparatus according to the invention relates to the continuous casting of hollow bodies of metals such as aluminium, copper, steels of all types, or other metals or alloys. The process comprises introducing a liquid metal into an annular space between an outer mold and an inner mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a movable magnetic field which entrains it in an upward direction. The magnetic field is preferably generated by a magnetic rotor which is disposed in the mandrel. The process is used in particular for producing blanks intended for the production of non-welded pipes and tubes.Type: GrantFiled: May 1, 1989Date of Patent: December 4, 1990Assignee: VallourecInventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Andre Gueussier, Rene Moreau, Pierre Peytavin
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Patent number: 4967828Abstract: The invention relates to the preparation of especially metallic or semi-metallic bands or sheets, particularly with a microcrystalline or amorphous structure. According to this process, an electrically conductive molten material is made to flow from a tank through a nozzle, to form a strip of substantially rectangular cross-section, which is subsequently solidified. According to the invention, the form of the strip of liquid material is stabilized, after it has been shaped and before solidification, as a result of a mechanical surface effect induced by an alternating magnetic field.Type: GrantFiled: June 6, 1989Date of Patent: November 6, 1990Assignee: Union Siderurgique du Nord et de l'Est de la FranceInventors: Claude Senillou, Remy de Framond, Marcel Garnier, Ali R. Yavari, Jean-Charles Joud
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Patent number: 4858675Abstract: The invention relates to the preparation of especially metallic or semi-metallic bands or sheets, particularly with a microcrystalline or amorphous structure. According to this process, an electrically conductive molten material is made to flow from a tank through a nozzle, to form a strip of substantially rectangular cross-section, which is subsequently solidified. According to the invention, the form of the strip of liquid material is stabilized, after it has been shaped and before solidification, as a result of a mechanical surface effect induced by an alternating magnetic field.Type: GrantFiled: May 3, 1988Date of Patent: August 22, 1989Assignee: Union Siderurgique Du Nord Et De L'Est De La France (USINOR)Inventors: Claude Senillou, Remy de Framond, Marcel Garnier, Ali R. Yavari, Jean-Charles Joud
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Patent number: 4838933Abstract: Apparatus for melting and continuously casting metals, comprising a vertical, conductive cold crucible (1) with at least part of the height of its wall in the form of longitudinal sectors (2) which are electrically insulated from one another and have a cooling fluid running through them; an inductor (6) with coils helically surrounding the crucible (1) over part of its height and supplied with alternating current both for heating and confining the metal; a system for drawing down the ingot; and possibly a chamber with a controlled external atmosphere, separating at least the contents of the crucible (1) from the external atmosphere, characterized in that the crucible (1) has an upper zone (4) divided into sectors, with parallel vertical generating lines, and a lower zone (5) divided into sectors and joined to the upper zone (4), the generating lines of the lower zone spreading apart in a downward direction from the join (45) between the two zones (4 and (5), and that the lowest coil (60) of the inductor (6) iType: GrantFiled: January 11, 1988Date of Patent: June 13, 1989Assignee: Compagnie Europeenne Du Zirconium CezusInventors: Patrick Paillere, Edouard Alheritiere, Marcel Garnier, Jean Driole, Annie Gagnoud
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Patent number: 4762653Abstract: The invention relates to the preparation of especially metallic or semi-metallic bands or sheets, particularly with a microcrystalline or amorphous structure.According to this process, an electrically conductive molten material is made to flow from a tank through a nozzle, to form a strip of substantially rectangular cross-section, which is subsequently solidified. According to the invention, the form of the strip of liquid material is stabilized, after it has been shaped and before solidification, as a result of a mechanical surface effect induced by an alternating magnetic field.Type: GrantFiled: October 30, 1986Date of Patent: August 9, 1988Assignee: Union Siderurgique du nord et de l'Est de la France (USINOR)Inventors: Claude Senillou, Remy de Framond, Marcel Garnier, Ali R. Yavari, Jean-Charles Joud
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Patent number: 4729422Abstract: The process and apparatus according to the invention concern continuous casting of hollow bodies of metals such as aluminum, copper, steels of all types, or other metals or alloys. The process comprises introducing the liquid metal into an annular space between an outer mold and an inner mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a movable magnetic field which entrains it in an upward direction. The magnetic field is preferably generated by a magnetic rotor which is disposed in the mandrel. The process is used in particular for producing blanks intended for the production of non-welded pipes and tubes.Type: GrantFiled: November 8, 1985Date of Patent: March 8, 1988Assignee: VallourecInventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Andre Gueussier, Rene Moreau, Pierre Peytavin
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Patent number: 4614225Abstract: The process and the device according to the invention relate to the continuous casting of hollow bodies made of metals such as aluminum, copper, steels of all types or other metals or alloys. The process involves introducing the liquid metal into an annular space between an external mold and an internal mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a moving magnetic field which drives it upward. This field is created by a magnetic rotor housed in the mandrel comprising a rotating part around which is arranged at least one spiral made of magnetized magnetic material made integral with the rotor by at least one collar. The process is applied, in particular, to the production of blanks intended for the manufacture of seamless tubes.Type: GrantFiled: December 6, 1983Date of Patent: September 30, 1986Assignee: VallourecInventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Rene Moreau
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Patent number: 4381777Abstract: Anaesthetic may be injected directly into the bone using a syringe in combination with a mechanism for causing the syringe needle to oscillate about its axis. The mechanism may be driven by a drive unit of the type conventionally used to power dental instruments.Type: GrantFiled: January 13, 1981Date of Patent: May 3, 1983Assignee: Micro-Mega S.A.Inventor: Marcel Garnier
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Patent number: 4369034Abstract: This device for preventing the ingress of water into the head of a dental contra-angle comprises a ring seal of cylindrical configuration adapted to be inserted through a hole formed in the bottom wall of the head body for the passage of the dental tool. This ring seal comprises at one end a flange having a diameter greater than the diameter of the passage hole and at its opposite end a bead also of greater diameter than the hole but adapted to be compressed when inserting the ring seal through the hole.Type: GrantFiled: April 22, 1981Date of Patent: January 18, 1983Assignee: Micro-Mega S.A.Inventors: Marcel Garnier, Michel Seigneurin
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Patent number: 4324266Abstract: A device for confining liquid metals comprises a coil which surrounds a jet of liquid metal to be confined and means for causing an alternating current to flow through the coil. These means cause an alternating current to flow through the coil at a frequency which is less than the inverse of the product of the magnetic permeability of the liquid metal, the electrical conductivity of the metal and the square of the radius of the jet of the metal after confinement, in coherent units.The invention applies to the casting of steel, aluminium, copper and alloys thereof.Type: GrantFiled: May 29, 1980Date of Patent: April 13, 1982Assignee: Agence Nationale de Valorisation de le Recherche (ANVAR)Inventors: Jacques P. Garnier, Marcel A. Garnier, Rene J. Moreau
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Patent number: 4217098Abstract: A centrally-bored cylindrical abutment member is fitted over the shank of a root canal instrument and held against the instrument handle or head by elastic clipping means acting on the instrument handle, or on a handpiece carrying the instrument. The thickness of the abutment member may be adjustable, e.g. by screwing, or several interchangeable devices with abutment members of different thicknesses can be provided to accurately set the effective penetrable length of the instrument.Type: GrantFiled: April 4, 1977Date of Patent: August 12, 1980Assignee: Micro-Mega S.A.Inventor: Marcel Garnier
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Patent number: 4216800Abstract: The invention concerns the centering, the guiding and the correction of shape of liquid streams of different metals. A series of various and different electrical conductors A, B, C, D, even in number, are disposed along generatrices of a prism whose axis X coincides with the axis to be imposed on stream V. High frequency alternating currents opposite in direction are passed along two successive conductors. Application to different types of casting in particular.Type: GrantFiled: July 10, 1978Date of Patent: August 12, 1980Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Marcel A. Garnier, Rene J. Moreau
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Patent number: 4154171Abstract: The invention relates to a skilift or chairlift having cable supporting wheels arranged in the form of an inverted V to allow the passing of the grips between the wheels. The wheel has a lining shaped as a half pneumatic tire and made of a quasi inelastic wear resistant material.Type: GrantFiled: June 10, 1977Date of Patent: May 15, 1979Assignee: Pomagalski S.A.Inventor: Marcel Garnier
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Patent number: 4082207Abstract: Apparatus for constricting a jet of liquid metal at the outlet of the orifice of a nozzle. The jet is constricted due to the provision of a winding which surrounds the discharge end of the nozzle, and a conductive cylindrical screen which extends into the winding. The apparatus can be used to constrict streams of molten steel, aluminum, copper or copper or aluminum alloys preparatory to flow of molten metal through a joint between two conduits which are not sealingly connected to each other or for the making of wire or small-diameter billets.Type: GrantFiled: July 6, 1976Date of Patent: April 4, 1978Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Marcel A. Garnier, Rene J. Moreau