Patents by Inventor Guy Delannoy

Guy Delannoy 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).

  • Needleless syringe which functions with the active agent being driven by a shocktube effect
    Patent number: 6913593
    Abstract: The invention relates to a needleless syringe (1), comprising the following' successively: a gas generator, a gas expansion chamber (3), a means for retaining particles of the active agent and a tube (6) for ejecting said particles. The main characteristic of the inventive syringe is that the gas generator is a pyrotechnic generator (2), comprising a pyrotechnic charge (10) which generates gas, a gas generator and an initiation device. The invention is also characterized in that the retaining means comprise at least one lid (8), which is fixed to the ejection tube and is configured to break under the influence of the gases generated by the combustion of said charge (10).
    Type: Grant
    Filed: November 23, 2000
    Date of Patent: July 5, 2005
    Assignee: Crossject
    Inventors: Patrick Alexandre, Guy Delannoy, Philippe Gautier, Denis Roller
  • Needleless syringe functioning by shock-tube effect, with prior lateral retention of the active principle
    Patent number: 6911015
    Abstract: The invention concerns a needleless syringe (1) comprising a trigger, a gas generator (2) prolonged by a gas expansion chamber (3), a system for retaining particles and an ejection tube (4). The invention is characterised in that the particles are housed outside the ejection tube conduit (4) and the gases cause the particles to reach inside said tube (4) by displacing a plunger (13), prior to speeding them up by wave shock inside the tube (4).
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: June 28, 2005
    Assignee: Crossject
    Inventors: Patrick Alexandre, Georges Baud, Guy Delannoy, Denis Roller
  • Needleless syringe provided with an ejection tube with a constant cross-section
    Patent number: 6837866
    Abstract: The invention relates to a needless syringe (1), comprising in succession, a gas generator (2), a gas expansion chamber (3) and a means for retaining the particles of an active agent, comprising at least one lid (8) which breaks under the influence of the gas coming from the generator (2). The main characteristic of the inventive syringe (1) is that the tube (6) has a cylindrical upstream part in which the means retaining the particles are fixed, said upstream part having a substantially constant cross-section over a length that is more than twice its inner diameter.
    Type: Grant
    Filed: November 23, 2000
    Date of Patent: January 4, 2005
    Assignee: Crossject
    Inventors: Patrick Alexandre, Guy Delannoy, Philippe Gautier, Olivier Simonin
  • Needleless syringe operating by impact tube effect, with prior lateral retention of active principle
    Publication number: 20020183689
    Abstract: The invention concerns a needleless syringe (1) comprising a trigger, a gas generator (2) prolonged by a gas expansion chamber (3), a system for retaining particles and an ejection tube (4). The invention is characterised in that the particles are housed outside the ejection tube conduit (4) and the gases cause the particles to reach inside said tube (4) by displacing a plunger (13), prior to speeding them up by wave shock inside the tube (4).
    Type: Application
    Filed: May 29, 2002
    Publication date: December 5, 2002
    Inventors: Patrick Alexandre, Georges Baud, Guy Delannoy, Denis Roller