Patents by Inventor Marc Huard

Marc Huard 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 producing a polymerizable synthetic material optical lens
    Patent number: 7695272
    Abstract: A device for producing a polymerizable synthetic material optical lens, including a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with the shells (14A, 14B), the closure member (12) including a synthetic material wall (123) adapted to come into contact with the molding shells (14A, 14B) and the closure member (12) incorporating a molding material introduction passage (125) discharging into the molding cavity (15) through a casting opening (126); characterized in that the closure member (12) includes a seal (40) that forms the contact wall (123) and the introduction passage (125), which joint (40) is formed of an elastomer material and of a rigid insert (43) at least part of which has the elastomer material molded over it, the introduction passage (125) being inside the insert (43).
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: April 13, 2010
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Yohann Felten, Marc Huard
  • Needle valve for filling a mold with an organic material in the liquid state
    Patent number: 7367797
    Abstract: The valve includes: a body in which is formed a flow passage for the material to be molded having a constriction bounded on its upstream side by a change of section forming a seat, and a needle mounted in the body and having a closure shoulder adapted to bear in the closure position against the seat formed by the change of section in the flow passage in the body, so as to shut off the flow passage and, projecting from the closure shoulder, an opening adjustment tip that has a nonuniform section and is engaged in the constriction to define a certain flow section therewith in each intermediate position of the needle.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: May 6, 2008
    Assignee: Essilor International (Compagnie D'Optique)
    Inventor: Marc Huard
  • Device for producing a polymerizable synthetic material optical lens
    Publication number: 20070065539
    Abstract: A device for producing a polymerizable synthetic material optical lens, including a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with the shells (14A, 14B), the closure member (12) including a synthetic material wall (123) adapted to come into contact with the molding shells (14A, 14B) and the closure member (12) incorporating a molding material introduction passage (125) discharging into the molding cavity (15) through a casting opening (126); characterized in that the closure member (12) includes a seal (40) that forms the contact wall (123) and the introduction passage (125), which joint (40) is formed of an elastomer material and of a rigid insert (43) at least part of which has the elastomer material molded over it, the introduction passage (125) being inside the insert (43).
    Type: Application
    Filed: September 11, 2006
    Publication date: March 22, 2007
    Inventors: Yohann Felten, Marc Huard
  • Injection valve, especially for a mould for an optical lens
    Patent number: 6969248
    Abstract: An injection valve includes an injection channel (17) that opens outwards via an outlet (18) and has a specific inlet for the arrival of the molding material (19A) remote from the outlet (18), in addition to a slider unit (20) that is moveably mounted in the injection channel (17) and controls the outlet thereof (18). The injection channel (17) has a specific outlet (19B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: November 29, 2005
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Marc Huard, Benoît Bessiere, Joël Massau
  • Method of filling a mold with an organic material in the liquid state to mold an optical component, and molding method including said filling method
    Publication number: 20040262792
    Abstract: The method includes the following steps:
    Type: Application
    Filed: January 23, 2004
    Publication date: December 30, 2004
    Inventors: Marc Huard, Gracio Da Silva, Daniel Darmes
  • Needle valve for filling a mold with an organic material in the liquid state and a method of molding an optical component using this kind of valve
    Publication number: 20040150125
    Abstract: The valve includes:
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventor: Marc Huard