Patents Represented by Attorney Norton Rose Or LLP
-
Patent number: 8056232Abstract: A floating collar is metal injected moulded with an excess portion intended to be separated, such as by shearing, from the reminder of the moulded floating collar to leave a chamfer thereon and/or remove injection marks.Type: GrantFiled: May 4, 2009Date of Patent: November 15, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Bhawan B. Patel, Lorin Markarian, Melissa Despres
-
Patent number: 8051664Abstract: A system for mounting an internal fuel manifold within a gas generator case of a gas turbine engine includes at least one fastener support assembly having a fastener pin and at least one receiving element, respectively engaged to either the internal fuel manifold or the gas generator case. A biasing member is located between the fastener pin and the receiving element to axially preload the joint between the fastener pin and the receiving element, such as to constrain relative movement between the two parts in an axial direction while allowing relative movement in a radial direction.Type: GrantFiled: July 23, 2007Date of Patent: November 8, 2011Assignee: Pratt & Whitney Canada Corp.Inventor: Jason Fish
-
Patent number: 8042752Abstract: A method repair for reducing fretting of a fuel nozzle of a gas turbine engine, including attaching at least one stiffening element to an outer surface of a portion of a stem member of the fuel nozzle, with a size and shape of the at least one stiffening element being selected such that a first natural frequency of the fuel nozzle with the at least one stiffening element attached thereto is outside the engine running frequency range.Type: GrantFiled: February 20, 2009Date of Patent: October 25, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Saeid Oskooei, Nicholas Hope
-
Patent number: 8044319Abstract: A variable arc gap plasma igniter element includes electrodes moveable relative to each other. The electrodes are preferably set to define a smaller air gap to initiate a plasma arc and later extended to obtain longer plasma arc.Type: GrantFiled: February 7, 2005Date of Patent: October 25, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Lev Alexander Prociw, Dany Clarence Gaudet
-
Patent number: 8043063Abstract: A frequency mistuned integrally bladed rotor (IBR) for a gas turbine engine comprises a hub and a circumferential row of blades of varying frequency projecting integrally from the hub. Each blade in the row alternate with another blade having a different pressure surface definition but similar suction surface, leading edge and trailing edge definitions.Type: GrantFiled: March 26, 2009Date of Patent: October 25, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Frank Kelly, Kari Heikurinen, Edward Fazari, Yuhua Wu
-
Patent number: 8039790Abstract: Methods and phantoms for verification in radiotherapy systems. A phantom for verification in a radiotherapy system may include a body to support a detector surface for obtaining a panoramic image of individual radiation beams in the radiotherapy system. The detector surface may be positioned in an intermediate region between the one or more sources and a target isocenter of the radiotherapy system. The detector surface may at least partially surround the target isocenter.Type: GrantFiled: May 14, 2010Date of Patent: October 18, 2011Assignee: University Health NetworkInventors: Young-Bin Cho, Mohammad Islam, Monique van Prooijen, David Jaffray, Mark Taylor
-
Patent number: 8038190Abstract: A waste retrieval device including a frame having a head portion, a member extending rearwardly therefrom and a retaining element, and a bag for containing at least partially the head portion, the bag including interconnected top and bottom panels sized to respectively extend over and under the head portion, a rear edge of the top panel being attachable to the frame by the retaining element, the top and bottom panels defining side portions providing extra bag material extending beyond the head portion when the bag at least partially contains the head portion to allow the bag to be inverted by moving a rear edge of the bottom panel under the head portion away from the member and back toward the member over the head portion and top panel.Type: GrantFiled: October 3, 2008Date of Patent: October 18, 2011Inventors: Arnold Zidulka, Bernard Shalinsky
-
Patent number: 8038411Abstract: A turbine blade 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 1. 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 arc joined smoothly to one another to form a complete airfoil shape.Type: GrantFiled: July 14, 2008Date of Patent: October 18, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Harris Shafique, Marc Tardif, Dimitrios Garinis
-
Patent number: 8037690Abstract: A fuel manifold for a gas turbine engine comprises manifold adaptors each supporting a nozzle for outputting fuel from a fuel supply. The manifold adaptors have a primary conduit and a secondary conduit extending between connection ends of the manifold adaptor. The primary conduit and the secondary conduit are in fluid communication with the nozzle to supply fuel thereto. Transfer units are between adjacent manifold adaptors, and each comprises a primary transfer tube matingly connected at opposite ends to the primary conduits of the adjacent manifold adaptors for fuel circulation between the primary conduits. A secondary transfer tube in each transfer unit is matingly connected at opposite ends to the secondary conduits of the adjacent manifold adaptors for fuel circulation between the secondary conduits. A drain sleeve in each transfer unit is connected at opposite ends to the adjacent manifold adaptors.Type: GrantFiled: December 17, 2008Date of Patent: October 18, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Oleg Morenko, Robert Richard Davis
-
Patent number: 8037548Abstract: A helmet (20) comprising a mechanism (28) to increase or decrease the internal volume thereof through the displacement of one or more portions (32) of the protective material (24) lining the helmet shell (22). The adjustment mechanism (28) is mounted on or adjacent the shell (22) of the helmet (20), from which project one or more connectors (30) which are operationally connected to the movable portions (32) of the protective material (24). When the adjustment mechanism (28) is activated, for example clockwise or counterclockwise, the connectors (30) are displaced, which causes the movable portions (32) of the protective material (24) to either be displaced away from the shell (22) of the helmet (20) or towards the shell (22) of the helmet (20) and thus allowing for a fine tuning of the fit of the helmet (20) on a player's head.Type: GrantFiled: January 12, 2007Date of Patent: October 18, 2011Assignee: Sport Maska Inc.Inventors: Garnet Alexander, Vittorio Bologna
-
Patent number: 8038683Abstract: A method of determining a reference point on condyles of a femur uses a computer assisted surgery system having a digitizer with perpendicular first and second planar surfaces, the digitizer being locatable and trackable in three dimensional space by the computer assisted surgery system. A digitized plane is created using the digitizer, the digitized plane being a posterior plane and/or a distal plane of the condyles. The posterior plane and the distal plane are respectively defined by the first and second planar surfaces of the digitizer. A location of the reference point in the digitized plane is then determined using the computer assisted surgical system. The reference point is a most remote point of the femur within the digitized plane.Type: GrantFiled: January 25, 2007Date of Patent: October 18, 2011Assignee: Orthosoft Inc.Inventors: Pierre Couture, Alain Richard, Louis-Philippe Amiot
-
Patent number: 8033113Abstract: A fuel injection system comprises a fuel conveying member and a nozzle tip assembly threadably engaged thereto. A pair of sealing elements is engaged in a fuel passage between the fuel conveying member and the nozzle tip for sealing the junction therebetween. The pair of sealing elements includes a first and a second sealing element located proximate each other and having different cross-sectional shape.Type: GrantFiled: May 15, 2007Date of Patent: October 11, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Bhawan B. Patel, Oleg Morenko, Nagaraja Rudrapatna
-
Patent number: 8033786Abstract: A vane assembly for a gas turbine engine comprising an axial loading element disposed between a mounting element of the vane ring and a cooperating portion of the supporting structure, such as to generate a load force therebetween in an axial direction. The axial load force limits unwanted relative movement between the vane ring and the supporting structure during operation of the gas turbine engine.Type: GrantFiled: December 12, 2007Date of Patent: October 11, 2011Assignee: Pratt & Whitney Canada Corp.Inventors: Eric Durocher, John Pietrobon, Alan Juneau, Dennis English
-
Patent number: 8033846Abstract: There is provided an electrical charger including a charger assembly and a locking assembly. The charger assembly includes a base unit configured for being electrically coupled to an electronic device, and an adaptor unit configured for being electrically coupled to a power supply. The locking assembly includes at least one operative detent member. There is provided a locked state, wherein the base unit is disposed in an electrical coupling relationship with the adaptor unit and movement of the base unit relative to the adaptor unit, such that the base unit becomes disposed in an electrically uncoupled relationship with the adaptor unit, is resisted. There is also provided an unlocked state wherein the base unit is moveable relative to the adaptor unit.Type: GrantFiled: December 16, 2009Date of Patent: October 11, 2011Assignee: Research In Motion LimitedInventors: Kasra Youssefi-Shams, Felipe Oliveira Simoes, Leonardo Aldana
-
Patent number: 8034335Abstract: The present invention relates to non-replicative recombinant retrovirus packaging cells able to grow in suspension in a serum-free medium. In particular, the present invention relates to a human embryonic 293SF-based cell line stably expressing gag and pol gene products from the murine Moloney leukemia virus (MLV) and either the feline RD114 env gene, the gibbon ape leukemia virus (GLV) env gene, or the amphotropic 4070Aenv gene. This particular combination allows the production of high titer of non-replicative retrovirus pseudotyped and prevents the recombination of plasmids. The recombinant retroviruses produced from these cells are safer and easier to produce for clinical use in gene therapy.Type: GrantFiled: April 26, 2007Date of Patent: October 11, 2011Assignee: Universite LavalInventors: Manuel Caruso, Karim Ghani
-
Patent number: 8025235Abstract: There is described a synthetic marker encoding data, the synthetic marker comprising an information payload represented by bits encoded along a spectrum, each of the bits having a priority level assigned thereto ranging from high to low, bits having lower priority levels being encoded along an end of the spectrum which is successively lost with progressively degrading marker viewing conditions compared to bits having higher priority levels.Type: GrantFiled: May 16, 2008Date of Patent: September 27, 2011Assignee: The Royal Institution for the Advancement of Learning/McGill UniversityInventor: Gregory Dudek
-
Patent number: 8025768Abstract: A continuous fiIter treatment process in which anionic polymer dispersions (latex) are added to common papermaking filler slurries ai ambient temperature and then mixed with water of temperature higher than the glass transition temperature (Tg) of the latex used. To efficiently fix the latex the temperature of the filler/latex mixture must be 30-60° C. higher than ihe Tg of the latex used. The chemical composition of the resin and the type of surfactant used during the emulsion polymerization process of the polymer latex dispersions are important factors for efficiently fixing the latex onto the filler by adding hot water and improving the properties of paper made with the treated filler. Enhanced fixation of anionic latex onto filler using hot water is done in mixing vessels that can control shear and mixing time. The anionic latexes are totally and irreversibly fixed or bound onto the filler particles and the aggregated filler slurry is stable over time.Type: GrantFiled: June 5, 2008Date of Patent: September 27, 2011Assignee: FpinnovationsInventors: Makhlouf Laleg, Roderick Collins, Danielle Gagne, Steven Middleton
-
Patent number: 8022717Abstract: There is described a method to change the value of a thermally-trimmable resistor in a non-permanent way by raising the temperature of the thermally-trimmable resistor to a level that is somewhere between room temperature and trimming temperature. By doing this, the trimming range that is available via true thermal trimming may be explored without actually trimming the value of the resistor. This is possible when the thermally-trimmable resistor, or a portion thereof, has an essentially non-zero temperature coefficient of resistance (TCR).Type: GrantFiled: March 16, 2007Date of Patent: September 20, 2011Assignee: Sensortechnics GmbHInventors: Oleg Grudin, Leslie M. Landsberger, Gennadiy Frolov
-
Patent number: 8021153Abstract: Detail implant drill holes and the shape of a dental implant superstructure are shown by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole positions can be selected taking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant positions referenced to an image of the gum surface and proposed dental prosthesis.Type: GrantFiled: May 17, 2007Date of Patent: September 20, 2011Assignee: Technique D'Usinage Sinlab Inc.Inventor: Michel Poirier
-
Patent number: 8015706Abstract: A method of providing a floating collar for a gas turbine engine combustor is provided, and comprises providing an annular sheet metal blank and bending the blank to provide the floating collar with an axial extending annular collar portion, an annular flange portion extending radially from the collar portion and a smooth transition portion between the collar and flange portions. The arrangement offers reduced cost, and simplicity, and therefore facilitates manufacturing.Type: GrantFiled: October 11, 2006Date of Patent: September 13, 2011Inventors: Lorin Markarian, Bhawan Bhai Patel