Patents by Inventor Maurice Doucet

Maurice Doucet 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: 5299623
    Abstract: A machine for producing metal die castings is disclosed and comprises a crucible that incorporates an injection pump assembly which is mounted in such a way as to clear the upper access of the crucible to facilitate cover sealing and removing. The crucible is located in a furnace and is reciprocable to move the injection barrel and nozzle to and from a mold. The injection barrel is immersed in the crucible beneath the level of the molten metal to enhance heat transfer between the barrel and injected metal. The separate plunger and shot assemblies are located in the pump body in a "V" configuration so that maintenance of these units can be carried out without exposing the top of the furnace to the atmosphere.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: April 5, 1994
    Assignee: Techmire Ltee./Ltd.
    Inventors: Stephen Yaffe, Pierre Lamy, Maurice Doucet, deceased
  • Patent number: 4601323
    Abstract: A machine for injection molding or die casting includes a main machine base with an injection unit mounted on the rear face and a mold guideway mounted on the front face. An aperture in the main machine base and a corresponding one in the base of the guideway provides for the nozzle of the injection unit to engage molds carried in the guideway. The reciprocating of the molds toward and away from one another is due to the action of a totally enclosed toggle assembly interconnecting mold-carrying shanks with compression lever brackets mounted in the ends of the guideway, actuators being located centrally of guideway ends and linked to the toggle assembly. Position adjusters are incorporated for adjusting the location of the injection unit on the rear of the machine to position its nozzle relative to the molds.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: July 22, 1986
    Assignee: Techmire Ltee.
    Inventors: Maurice Doucet, Pierre Lamy
  • Patent number: 4261414
    Abstract: A die casting machine has a frame with a base plate pivotally mounted thereon and supporting a furnace pot. A die assembly is mounted on the front face of the base plate and a double locking toggle arrangement is used to open and close the dies. The gooseneck assembly is mounted for linear movement to actuate the nozzle onto the die parting line.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: April 14, 1981
    Assignee: Techmire Ltee.
    Inventors: Remi Frenette, Maurice Doucet, Pierre Lamy