Patents by Inventor Pierre Bouttier

Pierre Bouttier 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).

  • Device for metering pulverulent materials
    Patent number: 5104230
    Abstract: The invention is in a pneumatic powder ejector comprising a suction stage and an injection stage. The suction stage includes a suction chamber (16), a venturi (14) communicating a primary gas to the suction chamber and a lateral suction input (18) offset in relation to the downstream and of the venturi. The injection stage includes a nozzle (22), an injection chamber (36) and a diffuser (38). The stages are located within and coaxially of the body of a tubular ejector. The nozzle includes a path for powder and primary gas between the suction chamber and diffuser, and is formed to provide a flow path of reduced dimension to communicate a secondary or entrainment gas between the diffuser and injection station.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: April 14, 1992
    Assignee: Saint Gobain Vitrage
    Inventors: Jean-Pierre Douche, Jean-Claude Coulon, Pierre Bouttier
  • Process and device for metering pulverulent materials
    Patent number: 4789569
    Abstract: The invention is in a pneumatic powder ejector comprising a suction stage and an injection stage. The suction stage includes a suction chamber (16), a venturi (14) communicating a primary gas to the suction chamber and a lateral suction input (18) offset in relation to the downstream and of the venturi. The injection stage includes a nozzle (22), an injection chamber (36) and a diffuser (38). The stages are located within and coaxially of the body of a tubular ejector. The nozzle includes a path for powder and primary gas between the suction chamber and diffuser, and is formed to provide a flow path of reduced dimension to communicate a secondary or entrainment gas between the diffuser and injection station.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: December 6, 1988
    Assignee: Saint-Gobain Vitrage
    Inventors: Jean-Pierre Douche, Jean-Claude Coulon, Pierre Bouttier