Patents Represented by Attorney Ogilvy Renault

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  • Compressor turbine vane airfoil profile
    Patent number: 7862303
    Abstract: A single stage high pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: January 4, 2011
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Mohamad Sleiman, Michel Dion, Sami Girgis
  • Protective saddle mount for cable tie
    Patent number: 7861981
    Abstract: A method and apparatus for providing a mounting system for an elongated item such as a cable, tube or wire, or an assembly of multiple cables, tube and/or wires. The mounting system includes an apparatus for mounting to a supporting structure, and an apparatus for receiving the elongated item. Also included is an apparatus for receiving a tying member such as a cable tie. Also included is an apparatus for permitting the tying member to be cut to release the elongate item from the mount without damage to the elongate item.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: January 4, 2011
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Bryan William Olver
  • Evanescent wave multimode optical waveguide sensor with continuous redistribution of optical power between the modes
    Patent number: 7864321
    Abstract: There is provided an evanescent wave multimode optical waveguide sensitive to a chemical species or to a physical parameter. The optical waveguide comprises a core and a cladding having a cladding refractive index lower than that of the core for guiding light to be propagated in the optical waveguide. The cladding defines with the core an optical waveguide providing mode coupling. A chemical indicator is provided in the cladding for causing a variation of the optical absorption of the cladding as a function of the chemical species or the physical parameter. The cladding is interrogated by the evanescent wave of the propagated light. The mode coupling causes unabsorbed light power to be redistributed among the multiple modes while light propagates along the optical waveguide.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: January 4, 2011
    Assignee: Institut National D'Optique
    Inventors: Serge Caron, Lia Mouslinkina, Claude Pare, André Fougeres
  • Insulated article and method of making same
    Patent number: 7858879
    Abstract: A tube is thermally insulated for protecting a fluid flowing therethrough from a high includes temperature surrounding environment of a gas turbine engine. The tube includes a conduit, an insulating layer wrapped around the conduit, and an elongated contractible braided sleeve for preventing a separation of the insulating layer from the rigid conduit. The contractible braided sleeve is flexible along a longitudinal axis thereof and removably pulled over the insulating layer to snugly surround and maintain the insulating layer around the conduit.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Jason Todd Herborth, Vittorio Bruno
  • Seal system for an interturbine duct within a gas turbine engine
    Patent number: 7857576
    Abstract: The interturbine duct (ITD) directs hot combustion gases from a high pressure turbine stage outlet to a low pressure turbine stage inlet in a gas turbine engine. The ITD comprises an outer wall and a heat resistant non-metallic resilient annular seal provided around an end of the outer wall that is adjacent to the high pressure turbine stage outlet.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Eric Durocher, Rene Paquet
  • Noise reducing combustor
    Patent number: 7856830
    Abstract: A combustor having liners with a plurality of angled effusion holes defined therethrough at a first angle with respect to a surface of the liners and at a second angle with respect to a corresponding radial plane. A density of the effusion holes defined in a primary section receiving the fuel nozzles is at least equal to a density of the effusion holes defined in a secondary downstream section.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Hisham Alkabie
  • Preloading brace for gas turbine engine transportation
    Patent number: 7857578
    Abstract: An assembly for preventing damage to bearings of a gas turbine engine during transportation is provided. The assembly comprises a turbofan gas turbine engine having an engine casing and at least one turbine shaft supported by a plurality of bearings, and, a brace secured relative to the engine casing and biasing the shaft along an axial direction of the shaft.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Tibor Urac, Yves Isabel, Gilles Beauvais, Sylvain Giroux
  • Combined golf ball retriever and retractable sand rake
    Patent number: 7856802
    Abstract: A golf ball retriever having a retractable sand rake integrated at one end thereof wherein the rake assembly is unfold from a collapsed position to an extended position.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: December 28, 2010
    Assignee: GF Developpement
    Inventors: Daniel Thibault, Gilles Fortier
  • Voltage regulation to reduce ripple in a power generation system
    Patent number: 7859230
    Abstract: Methods and systems are disclosed for reducing alternating current ripples in direct current electrical power generation systems with one or more regulated permanent magnet machines. Ripple suppression is achieved, in one aspect, by modulating the control current of a regulated permanent magnet machine.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp
    Inventors: Gregory I. Rozman, Kevin A. Dooley
  • Redundant mounting system for an internal fuel manifold
    Patent number: 7856825
    Abstract: A mounting system for an annular internal fuel manifold disposed within a gas generator case of a gas turbine engine including at least one fastener support assembly and at least one receiving element, each fastener support assembly including a primary fastener engaging the receiving element to constrain a relative movement between the fuel manifold and the gas generator case in an axial direction while allowing the relative movement in a radial direction and a secondary fastener in position to passively and automatically engage the receiving element upon failure of the primary fastener.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Jason Fish, Tibor Urac
  • Compact bearing support
    Patent number: 7857519
    Abstract: The compact squirrel-cage bearing support comprises a first end portion, a second end portion axially spaced from the first end portion, and a plurality of beams interconnecting the first end portion to the second end portion. The beams have a length that is greater than an axial spacing between the first end portion and the second end portion.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Richard A. Kostka, Nasr Kenawy
  • Turbine exhaust strut airfoil profile
    Patent number: 7857594
    Abstract: A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: December 28, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: John Kidikian, Edward Vlasic, Sami Girgis
  • Surgical universal positioning block and tool guide
    Patent number: 7857821
    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: November 8, 2007
    Date of Patent: December 28, 2010
    Assignee: Orthosoft Inc.
    Inventors: Pierre Couture, Benoit Pelletier, Alain Richard, Jean-Guillaume Abiven, Patrick Garceau
  • Portable ramp for motor vehicles
    Patent number: 7854032
    Abstract: A portable ramp for motor vehicles molded from co-polymer where the ramp has a longitudinal spine extending through a grid, has a sloped portion and a horizontal upper portion to support a wheel of a vehicle. The wheel is in direct contact with the grid and the grid is open from top to bottom between the spine and the side walls. The spine has an arc-shaped cross-section.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 21, 2010
    Assignee: Scepter Corporation
    Inventors: Jude Igwemezie, Tuan Nguyen
  • Fuel manifold with reduced losses
    Patent number: 7854120
    Abstract: A fuel conveying member of a gas turbine engine fuel system conducting pressurized fluid flow is provided. The fuel conveying member comprises a body defining an L-shaped fuel flow passage therein, the L-shaped passage including an elbow. The elbow portion provides a substantially smooth fluid-dynamic transition between portions of the passage upstream and downstream thereof.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 21, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Bryan William Olver
  • Lighting system and method for illuminating and detecting object
    Patent number: 7855376
    Abstract: An object-detecting lighting system comprises a light source emitting visible light. A source controller is connected to the light source to drive the light source into emitting the visible light in a predetermined mode. An optical detector is positioned with respect to the light source and is adapted to detect the visible light as reflected/backscattered by an object. A data/signal processor is connected to the source controller and the optical detector to receive detection data from the optical detector. The data/signal processor produces a data output associated to the object as a function of the predetermined mode and the detection data.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 21, 2010
    Assignee: Institut National D'Optique
    Inventors: Daniel Cantin, Yvan Mimeault, Pascal Gallant
  • Replaceable instrument mechanism for haptic devices
    Patent number: 7855712
    Abstract: A replaceable instrument mechanism for a haptic device comprises a coupler having a coupler body adapted to be connected to an output end of the haptic device. A force transmission mechanism is connected to the coupler body, has a movable connector displaceable along one degree-of-freedom with respect to the coupler body, and is connected to a force feedback system of the haptic device so as to receive force feedback from the haptic device and impart the force feedback to the movable connector. An instrument has an instrument body having a connector end releasably secured to the second end of the coupler body so as to be displaceable with the coupler. A handle portion is manually actuatable in one degree-of-freedom with respect to the instrument body to simulate an operation performed with the instrument.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: December 21, 2010
    Assignee: MPB Technologies Inc.
    Inventors: Marilyn J. Powers, Ian Sinclair
  • Operation of an aircraft engine after emergency shutdown
    Patent number: 7854582
    Abstract: A method of emergency operation of an aircraft turbofan engine during an aircraft flight is provided. The engine includes a fan shaft with a fan, and an electric motor/generator mounted for rotation therewith. The method includes shutting down the engine while allowing the engine to windmill, operating the electric motor/generator to rotate the shaft at a determined windmilling speed which is desired for the fan shaft, and operating the engine at the desired windmilling speed for substantially a remainder of the aircraft flight.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: December 21, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Richard Ullyott
  • Foam distribution parts with integral membrane fastening structures
    Patent number: 7849636
    Abstract: A gutter and sheeting material holding device comprises an elongated body having a bottom wall, and side walls extending from opposed sides of the bottom wall. The bottom and side walls define a gutter for channeling a liquid. Sheet holding channels are provided at a distal end of the side walls. Wedges are inserted into the sheet holding channels for anchoring sheets or membranes to the side walls of the gutter.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: December 14, 2010
    Assignee: Sunarc of Canada Inc.
    Inventors: Michel Baudhuin, Joey Villeneuve, Martin Desaulniers
  • Clothes hanger
    Patent number: D629624
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: December 28, 2010
    Inventor: Alain Marchand