Patents by Inventor Marcel Escudier

Marcel Escudier 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).

  • Patent number: 4734105
    Abstract: A method and device for removing solid or liquid particles contained in suspension in a gas stream by an electric field, wherein the gas stream flow is directed past ion sources which simultaneously act as field electrodes. The suspended particles are thereby changed in a bipolar manner, such that approximately half of the particles are positively charged and the other half negatively charged, and are forced by the electric field to migrate across the gas stream into a preferred neutralization zone where they are concentrated, discharged, partially agglomerated and coagulated. Subsequently, the particle-enriched and particle-depleted partial gas stream thus formed are separated and treated further in accordance with operating requirements. Thereby the remaining gas stream maximally loaded with particles is fed into a particle-removal device where their withdrawal occurs.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: March 29, 1988
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Baldur Eliasson, Marcel Escudier, Michael Hirth, Jakob Keller
  • Patent number: 4640806
    Abstract: Very finely granular metal powders are produced by atomizing a liquid jet of metal by means of a gas jet which, in addition to a continuous band of sound frequencies, contains at least one discrete sound frequency which is at least 5 decibel above the average intensity of this band, and which is generated in a rotationally symmetrical device by means of a nozzle (4) which has the shape of a hollow cone and by means of an annular resonance space (7) with an annular edge (6) and is projected concentrically against the liquid jet of metal at a total opening angle of an average 35.degree. to 55.degree.. The atomization zone of the gas jet should preferably contain at least three discrete sound frequencies which are each at least 10 decibel above the sound intensity of the continuous band.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: February 3, 1987
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Thomas Duerig, Marcel Escudier, Jakob Keller
  • Patent number: 4575325
    Abstract: Very finely granular metal powders are produced by atomizing a liquid jet of metal by means of a gas jet which, in addition to a continuous band of sound frequencies, contains at least one discrete sound frequency which is at least 5 decibel above the average intensity of this band, and which is generated in a rotationally symmetrical device by means of a nozzle (4) which has the shape of a hollow cone and by means of an annular resonance space (7) with an annular edge (6) and is projected concentrically against the liquid jet of metal at a total opening angle of an average 35.degree. to 55.degree.. The atomization zone of the gas jet should preferably contain at least three discrete sound frequencies which are each at least 10 decibel above the sound intensity of the continuous band.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: March 11, 1986
    Assignee: BBC Brown, Boveri & Co., Ltd.
    Inventors: Thomas Duerig, Marcel Escudier, Jakob Keller