Patents by Inventor Denis Rioux

Denis Rioux 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).

  • Publication number: 20140260876
    Abstract: A saw tooth for mounting onto a holder of a circular saw or of a mower drum is provided. The tooth has a mounting end for mounting against a component of the holder, a cutting end, opposite to the mounting end, the cutting end being provided with at least one cutting edge; and a plurality of sides extending from the mounting end to the cutting end. The plurality of sides include at least one holder side operatively mountable against the holder and at least one outer side opposite to the holder side the outer side being non-linear, diverging from the mounting end to the cutting end and having a contour slope which increases from the mounting end to the cutting end. The tooth thereby provides a greater clearance at its mounting end, and a greater kerf at its cutting end.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 18, 2014
    Applicant: PRENBEC EQUIPMENT INC.
    Inventors: Charles MACLENNAN, Robert MACLENNAN, Denis RIOUX, Stephane LAROUCHE
  • Patent number: 8061396
    Abstract: A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 22, 2011
    Inventors: Charles MacLennan, Denis Rioux
  • Patent number: 7913432
    Abstract: A cutting tooth assembly for a rotary cutting machine is described. The assembly includes a tooth holder adapted for mounting about the periphery of a rotating element of the rotary cutting machine, and a reversible cutting tooth, removably mounted to said tooth holder. The cutting tooth has opposed first and second cutting faces which are spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines more than two cutting edges, and the cutting tooth is reversible by 180 degrees about a transverse tooth axis to dispose a selected one of the first and second cutting faces in an operable cutting position when mounted to the tooth holder.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: March 29, 2011
    Assignee: Les Equipements Prenbec Inc.
    Inventors: Charles D. MacLennan, Nick Palfy, Denis Rioux, Robert Mitchell
  • Patent number: 7828026
    Abstract: A rotary cutting machine is described and includes a circular rotatable element, a plurality of tooth holders disposed on the circular rotatable element at spaced apart locations about its periphery, and at least one reversible cutting tooth removably fastened to each tooth holder such that at least one cutting edge is disposed in a operable cutting position. Each cutting tooth includes opposed first and second cutting faces spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines at least four of the cutting edges. The cutting tooth is reversible by 180 degrees about a transverse tooth axis such that it is mountable on the tooth holder in at least eight different positions, each of the positions providing a different selected one of the cutting edges in the operable cutting position.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: November 9, 2010
    Assignee: Les Equipments Prenbec Inc.
    Inventors: Charles D. Maclennan, Nick Palfy, Denis Rioux, Robert Mitchell
  • Publication number: 20100180735
    Abstract: A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 22, 2010
    Inventors: Charles MacLennan, Denis Rioux
  • Publication number: 20100170378
    Abstract: A cutting tooth assembly for a rotary cutting machine is described. The assembly includes a tooth holder adapted for mounting about the periphery of a rotating element of the rotary cutting machine, and a reversible cutting tooth, removably mounted to said tooth holder. The cutting tooth has opposed first and second cutting faces which are spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines more than two cutting edges, and the cutting tooth is reversible by 180 degrees about a transverse tooth axis to dispose a selected one of the first and second cutting faces in an operable cutting position when mounted to the tooth holder.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Inventors: Charles D. MACLENNAN, Nick Palfy, Denis Rioux, Robert Mitchell
  • Publication number: 20100170379
    Abstract: A rotary cutting machine is described and includes a circular rotatable element, a plurality of tooth holders disposed on the circular rotatable element at spaced apart locations about its periphery, and at least one reversible cutting tooth removably fastened to each tooth holder such that at least one cutting edge is disposed in a operable cutting position. Each cutting tooth includes opposed first and second cutting faces spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines at least four of the cutting edges. The cutting tooth is reversible by 180 degrees about a transverse tooth axis such that it is mountable on the tooth holder in at least eight different positions, each of the positions providing a different selected one of the cutting edges in the operable cutting position.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Inventors: Charles D. MACLENNAN, Nick Palfy, Denis Rioux, Robert Mitchell
  • Patent number: 7713006
    Abstract: A replaceable saw tooth for a rotary cutting machine. The saw tooth comprises more than two cutting edges on each of two opposed faces thereof. More specifically, the saw tooth may comprise a body having two cutting faces disposed opposite each other and spaced apart by at least four side faces which are each parallel to an opposite one of the side faces. The side faces are parallel to a central axis extending between the two cutting faces. Four cutting edges are defined between the side faces and each of the two cutting faces.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: May 11, 2010
    Assignee: Les Equipements Prenbec Inc.
    Inventors: Charles D. MacLennan, Nick Palfy, Denis Rioux, Robert Mitchell
  • Patent number: 7634897
    Abstract: A rotary cutting machine comprises a circular rotating element having a transverse axis of rotation and which is mounted to the rotary cutting machine for rotation about the axis of rotation. A plurality of cutting teeth are mounted to the circular rotating element at spaced apart locations about its circumferential periphery. The cutting teeth are reversible and removably fastened to the circular rotating element. Each cutting tooth includes opposed first and second cutting faces spaced apart by lateral surfaces extending therebetween. The first and second cutting faces define at least four of the cutting edges thereon, such that the cutting teeth are selectively mountable on the circular rotating element in any one of at least eight different positions, each of the positions providing a different one of the cutting edges in the operable cutting position.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: December 22, 2009
    Assignee: Les Equipments Prenbec Inc.
    Inventors: Charles D. MacLennan, Nick Palfy, Denis Rioux, Alain Perron
  • Publication number: 20070193428
    Abstract: A rotary cutting machine comprises a circular rotating element having a transverse axis of rotation and which is mounted to the rotary cutting machine for rotation about the axis of rotation. A plurality of cutting teeth are mounted to the circular rotating element at spaced apart locations about its circumferential periphery. The cutting teeth are reversible and removably fastened to the circular rotating element. Each cutting tooth includes opposed first and second cutting faces spaced apart by lateral surfaces extending therebetween. The first and second cutting faces define at least four of the cutting edges thereon, such that the cutting teeth are selectively mountable on the circular rotating element in any one of at least eight different positions, each of the positions providing a different one of the cutting edges in the operable cutting position.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 23, 2007
    Inventors: CHARLES MACLENNAN, Nick Palfy, Denis Rioux, Alain Perron
  • Publication number: 20070151430
    Abstract: A replaceable saw tooth for a rotary cutting machine. The saw tooth comprises more than two cutting edges on each of two opposed faces thereof. More specifically, the saw tooth may comprise a body having two cutting faces disposed opposite each other and spaced apart by at least four side faces which are each parallel to an opposite one of the side faces. The side faces are parallel to a central axis extending between the two cutting faces. Four cutting edges are defined between the side faces and each of the two cutting faces.
    Type: Application
    Filed: November 16, 2006
    Publication date: July 5, 2007
    Inventors: Charles MACLENNAN, Nick Palfy, Denis Rioux, Robert Mitchell
  • Patent number: D647928
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 1, 2011
    Inventors: Charles MacLennan, Denis Rioux
  • Patent number: D812115
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 6, 2018
    Assignee: PRENBEC EQUIPMENT INC.
    Inventors: Charles MacLennan, Robert MacLennan, Denis Rioux, Stephane Larouche