Patents Represented by Attorney Ogilvy Renault

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  • System and method for generating a non-repudiatable record of a data stream
    Patent number: 7752449
    Abstract: A system and method for generating a non-repudiatable record of a communications data stream is provided, which is applicable to real-time and quasi-real-time data streams. A binary communication data stream is captured and segmented into defined frames. A key frame is generated for each of a number of data frames containing integrity and authentication information. The key frame is inserted into the data stream to provide an authenticated data stream.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: July 6, 2010
    Assignee: Avaya, Inc.
    Inventor: Peter Chapman
  • Internal fuel manifold and fuel inlet connection
    Patent number: 7743612
    Abstract: An internal fuel manifold assembly for a gas turbine engine comprises a fuel manifold ring and a fuel inlet assembly fastened thereto. The fuel inlet assembly providing fluid flow communication with the fuel manifold ring and being joined to the fuel manifold ring at an inlet region thereon. The inlet region of the fuel manifold ring is reinforced relative to the remainder of the circumference of the fuel manifold ring.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: June 29, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Oleg Morenko
  • Cumate-inducible expression system for eukaryotic cells
    Patent number: 7745592
    Abstract: The invention relates to a new “gene-switch” (cumate-inducible switch) for mammalian cells. This switch is as useful in the development of expression systems and cell-based assays for functional genomics as in the generation of viral vectors for gene therapy.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: June 29, 2010
    Assignee: National Research Council of Canada
    Inventors: Bernard Massie, Alaka Mullick, Peter C. K. Lau, Yasuo Konishi
  • Turbofan case and method of making
    Patent number: 7739866
    Abstract: A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: June 22, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Andreas Eleftheriou, Kevin Walter Lobo, Maurice Weinberg, Quantai Liu
  • Physical layer structures and initial access schemes in an unsynchronized communication network
    Patent number: 7738437
    Abstract: Physical layer structures and related access schemes for unsynchronized communication networks are provided. Access channel information, preferably including a common synchronization code associated with all transceiver stations in a communication network and a cell-specific synchronization code uniquely associated with one of the transceiver stations, is modulated onto at least one set of time-continuous signal components of a communication signal. In order to access the communication network, communication terminals search for the access channel information in one or more sets of time-continuous signal components and synchronization parameters are then determined based on a location of the access channel information in the sets of time-continuous signal components. Some embodiments of the invention provide for joint frame synchronization and coarse timing synchronization.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: June 15, 2010
    Assignee: Nortel Networks Limited
    Inventors: Jianglei Ma, Ming Jia, Peiying Zhu, Wen Tong
  • Calibration of optical patternator spray parameter measurements
    Patent number: 7738694
    Abstract: The present invention provides a method of calibrating a fuel nozzle patternation system. The method includes testing a master nozzle having desired spray characteristics in the system to determine a virtual origin of the system and then using the virtual origin to replace a fixed spatial origin of the system for testing other nozzles of the same nozzle family.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: June 15, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Lev Alexander Prociw, Harris Shafique, Patrice Fiset
  • Aircraft engine pre-dressing unit for testing facility
    Patent number: 7735363
    Abstract: A turbofan text cell pre-dressing unit that enables the installation of the engine in a text cell in minimal time is provided.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: June 15, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Daniel Mainville
  • Surgical universal positioning block and tool guide
    Patent number: 7736368
    Abstract: A positioning block (10) for use in total knee replacement surgery, permitting five degrees-of-freedom movement relative to a bone element (39) to which it is fixed. The positioning block (10) comprises a rotational mounting element (14) that is removably engaged to the bone element such that the mounting element (14) is selectively rotatable relative to the bone element, about three substantially perpendicular axes of rotation. A guide body portion (12) is engaged with the mounting element (14) such that it is translatable relative thereto along a proximal-distal axis (43) and an anterior-posterior axis (47), while being rotationally fixed relative to the mounting element (14) such that the guide body portion (12) and the mounting element (14) rotate together relative to the bone element (39).
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: June 15, 2010
    Assignee: Orthosoft Inc.
    Inventors: Pierre Couture, Benoit Pelletier, Alain Richard, Jean-Guillaume Abiven, Patrick Garceau
  • Reversible vacuum filter cartridge
    Patent number: 7731036
    Abstract: A reversible vacuum filter cartridge for connection to a pair of tubes or other entities to filter a liquid medium placed in one of the tubes or other entities is described. The filter cartridge is comprised of a male coupling and a female coupling. The couplings are interconnected to one another by simply pushing a mating projection of the male coupling into a mating cavity of the female coupling. A connecting port is provided in the male and female coupling and has a conduit communicating with tube connecting ends of each of the couplings which communicate with an open end of a tube connected to each of the couplings. The connecting port is identical in each of the couplings and serves either as vacuum port or an air intake port. A filter disk is retained captive between perforated outer walls of each of the couplings when interconnected together in fluid-tight relationship.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 8, 2010
    Assignee: SCP Science
    Inventors: Arthur Ross, George Feilders
  • Optically-enabled integrated circuit package
    Patent number: 7729581
    Abstract: An optically-enabled integrated circuit (IC) package for connecting an electrical circuit board to an optical fiber is presented. The IC package comprises an OSA having a laser which is pre-aligned with the optical fiber. The OSA further comprises a standard electrical interface for the connection to the microchip and a standard optical interface for the connection to the optical fiber. A set of mechanical concepts for connecting optical connectors and cables to integrated circuit packages is also presented and can be applied for any type of optical connector such as single optical fiber ferrules, MT-RJ type optical ferrules and 2-D MT-type optical ferrules.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: June 1, 2010
    Assignee: Reflex Photonics Inc.
    Inventors: David Robert Cameron Rolston, Richard Mainardi, Shao-Wei Fu
  • Labyrinth seal repair
    Patent number: 7726021
    Abstract: A method for repairing damaged fins in a labyrinth seal without the use of welding or metallurgical bonding by removing a section of the shaft containing the damaged fins, and providing a sleeve with replacement fins.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Barry Barnett
  • Reactive parallel processing jamming system
    Patent number: 7728755
    Abstract: The system is a parallel processing jamming architecture that is designed to automatically attack and concurrently investigate multiple signals simultaneously in the radio environment. The system implements multiple wideband independent channels to allow simultaneous threat signals to be processed in parallel and jammed in real-time. The system automatically attacks a radio communication channel when the suspect radio signal surpasses a dynamic composite threshold which is internally updated using multi-channel data feedback, in real-time. The concurrent analysis with transmission allows the system to optimize the jam efficiency quickly to an unknown signal, and while determining the validity of the threat. The high throughput parallel architecture allows the intelligent jamming process to occur with rapidity and signal multiplicity.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 1, 2010
    Inventor: Damjan Jocic
  • Fuel system of gas turbine engines
    Patent number: 7726112
    Abstract: A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: June 1, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kevin Allan Dooley
  • Floatwall dilution hole cooling
    Patent number: 7726131
    Abstract: A combustor for a gas turbine engine is provided, the combustor having an outer shell with an outer surface exposed to cooling air and an inner surface, and at least one floatwall panel attached to the inner surface of the outer shell and having a trailing edge. At least one dilution hole is in the floatwall panel near the trailing edge and in communication with the outer surface of the outer shell, and at least one local air impingement hole is in the outer shell downstream of each at least one dilution hole, that directs the cooling air towards the trailing edge of the floatwall panel.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: June 1, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Robert Sze, Jeffrey Richard Verhiel
  • Elliptical exerciser
    Patent number: 7727120
    Abstract: A mechanism for an elliptical exerciser comprises a crank rotatably connected to a frame so as to have a free end rotatable in a circular path. A restriction member is rotatably connected to the frame. A transmission member is connected to the restriction member, and a central portion thereof is rotatably connected to the crank, whereby the central portion of the transmission member moves along said circular path while the first end of the transmission member is constrained by the restriction member to move along a reciprocating arcuate path, such that a free end of the transmission member moves along an elliptical path.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: June 1, 2010
    Assignee: Appareils D'Exercice Bodyguard Inc.
    Inventor: Charles Smith
  • Combustor liner and heat shield assembly
    Patent number: 7721548
    Abstract: A combustor heat shield has a body defining a fuel nozzle hole. The back face of the body is mounted adjacent and spaced-apart from a combustor dome. A ridge extends around the nozzle opening to a height adapted to substantially contact the combustor dome. The ridge thereby defines a cooling compartment between the body and the combustor dome. A plurality of slots is provided through the ridge. The slots are closed by the combustor dome to provide cooling holes when the heat shield is mounted on the combustor. The cooling holes direct pressurized cooling air from the compartment to adjacent regions of the back face of the heat shield body.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 25, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Bhawan B. Patel, Lorin Markarian, Parthasarthy Sampath
  • Starting a gas turbine engine using a sensorless, brushless motor
    Patent number: 7723931
    Abstract: A method and apparatus for starting a gas turbine engine using a brushless sensorless machine, the machine having a rotor and a stator with windings, the method including positioning the rotor at a desired position with respect to the stator and then energizing the windings of the stator.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: May 25, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kevin A. Dooley
  • Soil decontamination by mechanically activated oxidation
    Patent number: 7722292
    Abstract: A method of performing soil decontamination including mechanically mixing the soil with solid oxidant prior to any addition of water and until an exothermic reaction between the oxidant and contaminants within the soil occur, adding only necessary water to obtain an homogeneous mix between the soil and the oxidant, and mechanically mixing the soil with the oxidant and the water for a predetermined period of time to allow the oxidant to at least partially oxidize the contaminants.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: May 25, 2010
    Assignee: Golder Associates Ltd
    Inventors: Mathieu Barbeau, Eric Bergeron
  • Dynamic non-linear display
    Patent number: 7725221
    Abstract: A method and apparatus is disclosed for displaying a dynamic parameter, the apparatus comprises a display unit receiving a display signal and displaying a scale that changes dynamically and non-linearly in accordance with a selected display algorithm, the display unit further displaying a pointer pointing to said scale in accordance with a reading of said dynamic parameter, thereby emphasizing a range of said reading of said dynamic parameter.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: May 25, 2010
    Assignee: Marinvent Corporation
    Inventor: John Maris
  • Handle
    Patent number: D617625
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: June 15, 2010
    Assignee: The Innovak Group Inc.
    Inventor: Gao Haining