Patents by Inventor Richard Larouche

Richard Larouche 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: 8684051
    Abstract: The present invention relates to a cutting device for a fast canter head (20) comprising a knife holder (22) directed at an angle, a counter knife (30) with an elbow and a dorsal support (37) which positions a cutting knife (50) having a cutting angle (54). The cutting knife has a pair of adjustment recesses (52) containing an adjustment device (58). The adjustment device comprises an end of support (64) which leans against the dorsal support and works like a compensator to take into account any wear of the cutting angle of the knife for a constant distance grinding operation, in an adjustable position, making it possible to preserve a same rotation distance. The adjustment device has a railing guide (70) which slips into the adjustment recess (52) and which comprises an elastic wall (72) which pushes against the sides of the recess by the action of a tightening conical element (76) activated by a conical set screw (78). In the event of shock, the guide slips.
    Type: Grant
    Filed: August 28, 2010
    Date of Patent: April 1, 2014
    Inventors: Clermont Levasseur, Marius Sirbu, Richard Larouche
  • Publication number: 20110056587
    Abstract: The present invention relates to a cutting device for a fast canter head (20) comprising a knife holder (22) directed at an angle, a counter knife (30) with an elbow and a dorsal support (37) which positions a cutting knife (50) having a cutting angle (54). The cutting knife has a pair of adjustment recesses (52) containing an adjustment device (58). The adjustment device comprises an end of support (64) which leans against the dorsal support and works like a compensator to take into account any wear of the cutting angle of the knife for a constant distance grinding operation, in an adjustable position, making it possible to preserve a same rotation distance. The adjustment device has a railing guide (70) which slips into the adjustment recess (52) and which comprises an elastic wall (72) which pushes against the sides of the recess by the action of a tightening conical element (76) activated by a conical set screw (78). In the event of shock, the guide slips.
    Type: Application
    Filed: August 28, 2010
    Publication date: March 10, 2011
    Inventors: Clermont Levasseur, Marius Sirbu, Richard Larouche
  • Patent number: 6830723
    Abstract: An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The sealing means include mating peripheral flanges on the vessel and cover, with the cover flange having two spaced annular sealing strips for contacting the vessel flange and a metal annular splash protector. These sealing strips include a thermal barrier strip formed of a deformable fibrous refractory material to provide a gas tight, a thermal barrier between the interior of the vessel and the exterior and a metal annular strip upon which the cover is supported on the vessel with the cover flange at a fixed distance above the vessel flange and the thermal barrier strip is compressed therebetween to a controlled degree.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: December 14, 2004
    Assignee: Alcan International Limited
    Inventors: Richard Larouche, Daniel Maltais
  • Publication number: 20030197315
    Abstract: An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The sealing means include mating peripheral flanges on the vessel and cover, with the cover flange having two spaced annular sealing strips for contacting the vessel flange and a metal annular splash protector. These sealing strips include a thermal barrier strip formed of a deformable fibrous refractory material to provide a gas tight, a thermal barrier between the interior of the vessel and the exterior and a metal annular strip upon which the cover is supported on the vessel with the cover flange at a fixed distance above the vessel flange and the thermal barrier strip is compressed therebetween to a controlled degree.
    Type: Application
    Filed: March 7, 2003
    Publication date: October 23, 2003
    Inventors: Richard Larouche, Daniel Maltais
  • Publication number: 20030080480
    Abstract: An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The sealing means include mating peripheral flanges on the vessel and cover, with the cover flange having three spaced annular sealing strips for contacting the vessel flange. These sealing strips include a first outer annular strip formed of an elastomeric material to give an air tight seal between the cover and vessel and a second middle annular strip formed of a deformable fibrous refractory material to provide a thermal barrier between the interior of the vessel and the outer annular strip. A third inner annular strip is a rigid metal strip upon which the cover is supported on the vessel with the cover flange at a fixed distance above the vessel flange and the outer sealing strip and middle sealing strip compressed therebetween to a controlled degree.
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Richard Larouche, Daniel Maltais