Patents by Inventor René Perreault

René Perreault 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: 20200002372
    Abstract: Estrane-based and androstane-based aminosteroid derivatives are described herein. More specifically, the following piperazinyl-steroid compounds of Formula I, Formula II, Formula III, and Formula IV are described. The compounds display cytotoxicity on a variety of cancer cell lines. A process for producing the compounds and their use in the manufacture of pharmaceutical formulations and/or combinations is also disclosed.
    Type: Application
    Filed: June 2, 2017
    Publication date: January 2, 2020
    Inventors: Donald POIRIER, René MALTAIS, Martin PERREAULT
  • Publication number: 20170087740
    Abstract: A rotary log debarker comprising a container. The container comprises a bottom part, two opposed longitudinal walls extending upward from the bottom part, one end wall, and a chute. The bottom part comprises rotors being drivable by a power source. The rotors comprise a plurality of debarking plates. The debarking plates comprise an abrasive surface. The rotary log debarker is characterized in that it is provided with a tilting system for adjustable tilting of the container about a pivot point.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventor: René Perreault
  • Patent number: 6766814
    Abstract: Collapsible umbrella having a resilient rib tensioning member connected to an end portion of the central shaft and interconnected with a first rib end portion and a second end portion. In response to moving forces against the rib connector it moves from a default position to a first, a second and a third open position to a second to a third. In the first open position, the rib tensioning member exerts a first threshold holding force on the second rib end portion, whereas in the second position, a second threshold holding force holds the second rib end portion, which is greater than the first. The rib tensioning member exerts a third threshold holding force on the second rib end portion, which is less than the second threshold holding force. The ribs having a rib weight sufficient to bias the second rib end portions towards a mounting surface.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: July 27, 2004
    Inventor: Jean-Rene Perreault
  • Publication number: 20040123890
    Abstract: Collapsible umbrella having a resilient rib tensioning member connected to an end portion of the central shaft and interconnected with a first rib end portion and a second end portion. In response to moving forces against the rib connector it moves from a default position to a first, a second and a third open position to a second to a third. In the first open position, the rib tensioning member exerts a first threshold holding force on the second rib end portion, whereas in the second position, a second threshold holding force holds the second rib end portion, which is greater than the first. The rib tensioning member exerts a third threshold holding force on the second rib end portion, which is less than the second threshold holding force. The ribs having a rib weight sufficient to bias the second rib end portions towards a mounting surface.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Inventor: Jean-Rene Perreault
  • Patent number: 6386823
    Abstract: A machine is disclosed for conveying wooden piece such as logs of wood and lumber, in wood transformation industries such as sawmills. The wooden pieces are conveyed in a conveying direction from the front towards the back of the frame of the machine. The machine has several conveying shafts rotatably mounted in parallel on the sides of the frame. Each shaft has a rotating axis about which it is driven in rotation in a direction corresponding to the conveying direction. Several toothed circular plates are mounted on each shaft and extend in a plane crossing the axis of rotation of the shafts. The plates of a shaft are designed to be offset with respect to the plates of an adjacent shaft. Each tooth of each plate are spaced apart from an adjacent tooth by a distance which corresponds substantially to the range of diameter of the wooden pieces and defines a space therebetween for receiving at least a portion of a wooden piece.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: May 14, 2002
    Inventor: René Perreault