Patents Represented by Attorney Ogilvy Renault LLP

Find this attorney in the Justia Lawyer Directory

  • Combustor liner with improved heat shield retention
    Patent number: 7845174
    Abstract: A combustor liner including a dome section having a positioning hole defined at a first radial distance and sized to receive a first heat shield fastener to at least substantially prevent radial and circumferential motion of the first fastener, a circumferential slot sized to receive a second heat shield fastener to at least substantially prevent radial motion of the second fastener while allowing limited circumferential motion of the second fastener, and a clearance hole defined at a second radial distance and sized to receive a third heat shield fastener to allow limited radial and circumferential motion of the third fastener.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: December 7, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Kenneth Parkman, Stephen Phillips
  • Test fixture for assembled wireless devices
    Patent number: 7847742
    Abstract: A fixture for radio frequency (“RF”) testing of an assembled wireless device, the wireless device having a removable casing concealing one or more RF spring connectors, the fixture comprising: a retainer for receiving the wireless device with the removable casing removed; a coaxial connector mounted through the retainer, the coaxial connector having a center contact and a shield contact, the coaxial connector for communicating RF test signals through a coaxial cable with external test equipment; a circuit board mounted on an inner side of the retainer and having one or more pads each for receiving one of the center and shield contacts; and, one or more probes mounted on ones of the pads for contacting ones of the RF spring connectors to distribute the RF test signals.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: December 7, 2010
    Assignee: Research In Motion Limited
    Inventors: Tim Sommerfeld, Steve Green, Liviu George
  • Method for producing carbon nanotubes using a DC non-transferred thermal plasma torch
    Patent number: 7846414
    Abstract: The present invention provides a process for the manufacture of carbon nanostructures, the carbon nanostructures being selected from carbon nanotubes and carbon nano-onions. The method comprises the steps of injecting a carbon-containing gas into a plasma flame generated from a plasma forming gas to provide atomic carbon, which in the presence of in situ generated nanometer sized metal catalyst particles that act as nucleation points for growth of carbon nanostructures, produce the carbon nanostructures, and collecting the carbon nanostructures.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: December 7, 2010
    Assignee: McGill University
    Inventors: David Harbec, Jean-Luc Meunier
  • High helix/low lead cutting tool
    Patent number: 7841809
    Abstract: A milling cutter comprises a shank section joined to a cutting section. The cutting section includes a plurality of peripheral blades separated by a plurality of flutes to form cutting edges extending around the cutting section in a helix direction. The helix angle is relatively large such that an axial cutting force acting on the cutting edge is greater than other cutting forces acting on the same cutting edge and on a plane normal to the axial cutting force.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: November 30, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Serafettin Engin
  • Dynamic waveform shaping in a continuous fiber
    Patent number: 7844147
    Abstract: A system for dynamic waveform shaping in an optical fiber comprising: the optical fiber receiving an optical waveform, the optical waveform having individual spectral lines; a plurality of fiber bragg gratings in-line on the optical fiber, each having a reflectivity wavelength corresponding to one of the spectral lines; a plurality of polarization controllers in-line on the optical fiber, each polarization controller receiving the optical waveform from a respective fiber bragg grating; a circulator for directing the optical waveform as input to the plurality of fiber bragg gratings and receiving the optical waveform as output from the plurality of fiber bragg gratings; and a polarizer in-line on the optical fiber receiving the optical waveform from the fiber bragg gratings and the polarization controllers.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 30, 2010
    Assignee: Governing Council of the Univeristy of Toronto
    Inventors: Yu Yeung Ho, Li Qian
  • Start flow measurement
    Patent number: 7841184
    Abstract: A method and apparatus for measuring a start fuel flow to a pilot nozzle of a fuel system of a gas turbine engine using pressure differential between fuel passages leading to fuel nozzles.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: November 30, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kevin Allan Dooley
  • Gas turbine combustor exit duct and HP vane interface
    Patent number: 7836702
    Abstract: An assembly for a gas turbine engine includes a combustor and a vane assembly disposed downstream thereof. A portion of an outer platform of the vane assembly defines an axial sliding joint connection with the combustor, and includes a plurality of depressions located in an outer circumferential surface thereof opposite the combustor. The depressions are disposed in regions of expected higher thermal growth about the circumference of the outer platform such that thermal growth of the entire outer platform is substantially uniform circumferentially therearound.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: November 23, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Nicolas Grivas, Bhawan B. Patel, Oleg Morenko, Eric Durocher
  • Flow cytometry analysis across optical fiber
    Patent number: 7835599
    Abstract: A flow cytometer type apparatus and method for analyzing a fluid, where the fluid is fed through a passageway within an optical fiber and the light is guided by the fiber across the passageway and intersects the fluid therein. The apparatus includes an optical fiber with a passageway traversing it, a channeling system to channel the fluid medium within the passageway, a light source to propagate light within the optical fiber and across the passageway, and a detection system for detecting an intensity of the light exiting the fiber. The method includes channeling the fluid medium through the passageway, propagating light within the optical fiber, and detecting an intensity of the light output. Preferably, the fluid includes small bodies, like bacteria which are analyzed by assessing the detected exiting light intensity.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 16, 2010
    Assignee: Institut National d'Optique
    Inventors: René Beaulieu, Michel Fortin, Alain Cournoyer
  • Prefabricated building structure with collapsible roof sections
    Patent number: 7832151
    Abstract: A prefabricated building structure having a collapsible roof and adapted to be transported by a road carrier vehicle is described. The prefabricated building structure is provided with at least opposed parallel load bearing side walls. A roof section having a plurality of spaced roof rafters is pivotally connected by one or more pivot connections to a respective one of a top plate of each of the load bearing side walls. The roof sections are interconnectable to one another when the roof sections are disposed angularly upwards to form a raised pitch roof structure. A leverage beam is connectable to one of the rafters of each roof section and is securable to a cable which is secured to a pulley whereby to permit the roof sections to be raised or lowered.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: November 16, 2010
    Assignee: Les Habitations Mont-Carleton Inc.
    Inventors: Eric Harrisson, Jean Pinault, Pierre Bėlanger
  • Lath breaker
    Patent number: 7832452
    Abstract: An apparatus is disclosed for removing exceeding portions of laths use to separate pieces of lumber in a bundle. The apparatus comprises an external cage and an internal cage having a skeleton framework mounted to the external cage and displaceable between a retracted position and an extended position in which the internal cage projects forwardly from a front open face of the external cage. A chain-like member carrying a plurality of paddles is provided at a front face of the skeleton framework and is driven by a motor for causing the paddles to strike and break the exceeding portions of the laths.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: November 16, 2010
    Assignee: 9098-9617 Quebec Inc.
    Inventor: Jean Deschênes
  • Air seal arrangement for a gas turbine engine
    Patent number: 7828513
    Abstract: The air seal arrangement is for a disc wheel in a gas turbine engine. The disc wheel comprises a sleeve portion having an outer surface. The arrangement comprises a static knife edge seal in registry with the outer surface. The static knife edge seal has a free end adjacent to the outer surface.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: November 9, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Eric Durocher, Rene Paquet
  • Glasses with reflective frame
    Patent number: 7828427
    Abstract: A structure of reflective glasses includes a frame having a main front section with opposed side ends for supporting at least one lens, the frame further including a pair of side sections extending rearwardly from the respective opposed side ends of the main front section and at least one retroreflective element attached to each of the side sections to be visible by others in low-light conditions.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 9, 2010
    Inventor: Brent Sheldon
  • Approximate linear FM synchronization symbols for a bandwidth configurable OFDM modem
    Patent number: 7830998
    Abstract: A communications system permits bandwidth configurability using a linear frequency modulated (LFM) waveform for transmitter/receiver synchronization. The system permits enhancement of MIL-STD-1553 data buses, and is likewise applicable to any bandwidth-configurable modem.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: November 9, 2010
    Assignee: Edgewater Computer Systems, Inc.
    Inventor: John Fanson
  • Combustor heat shield
    Patent number: 7827800
    Abstract: A combustor heat shield comprises a heat shield member defining at least one opening for receiving a fuel nozzle. A louver is received in the opening. The louver has a flow diverting portion extending radially outwardly from the opening for directing air along the hot side of the heat shield member.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: November 9, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Honza Stastny, Parthasarathy Sampath, Carol Desjardins, Kenneth Parkman, John Greer, Stephen Phillips, Eduardo Hawie, Yvan Schraenen
  • Assembly procedure for the adjustable pin-valve, fuel shut-off
    Patent number: 7827780
    Abstract: A protocol for assembling a fuel shut off pin valve assembly for a turbo fan engine. The protocol outlines a specific sequence of events in order to ensure failsafe incorporation of a fuel shut off valve assembly within the low pressure turbine area and specifically within the engine casing of the turbo fan.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 9, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Guy Lefebvre, Claude Giardetti
  • Rotary cutting machine with reversible teeth
    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
  • Rolling walker and handle grips thereof
    Patent number: 7828305
    Abstract: A handle grip for ambulatory aid appliances has a soft top portion and a rigid body portion. The handle grips may be attached to a wheeled ambulatory aid appliance such as a rolling walker, wheelchair, stroller and the like in a selected position to provide a comfortable and secure hand grip to a user of the ambulatory aid.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: November 9, 2010
    Assignee: AMG Medical Inc.
    Inventors: Daniel Seth Meyers, Cristian Boar
  • Bedpan
    Patent number: D627062
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: November 9, 2010
    Assignee: Hygie Canada Inc.
    Inventor: Eric Tanguay
  • Firefighter jacket
    Patent number: D627950
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: November 30, 2010
    Assignee: Innotex Inc.
    Inventor: Louis Carpentier
  • Bath mat
    Patent number: D628422
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: December 7, 2010
    Assignee: AMG Medical Inc.
    Inventors: Daniel Seth Meyers, Cristian Boar, Wei Xiao