Patents Represented by Attorney Krieg DeVault LLP
  • Patent number: 8342797
    Abstract: In one embodiment, a gas turbine engine turbine flow member is described that contains a passageway having a flow obstruction that forms a tortuous passageway for the passage of a cooling fluid. The flow obstruction can include flow structures disposed toward either side of the passageway. In one non-limiting embodiment a flow structure can have a V-shape, and in another non-limiting embodiment the flow structure can have an elongate shape. As cooling fluid flows through the passageway it is encouraged to flow up, down, and/or along portions of the flow obstruction.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: January 1, 2013
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventors: Okey Kwon, Ted Freeman
  • Patent number: 8342812
    Abstract: A variable speed air compressing system includes a compressor, a motor configured to actuate the compressor, and a rectifier configured to receive alternating current from a first power source and to provide rectified direct current having a first voltage. The system also includes an inverter configured to receive the rectified direct current and to receive direct current from a second power source having a second voltage. The inverter is configured to provide alternating current to the motor. The alternating current provided to the motor is based on the rectified direct current if the first voltage is greater than the second voltage and the alternating current is based on the direct current from the second power source if the second voltage is greater than the first voltage.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 1, 2013
    Assignee: Crosspoint Solutions, LLC
    Inventor: Gerald Allen Alston
  • Patent number: 8336309
    Abstract: A turbocharger wastegate valve assembly comprises a first bypass port communicating with a first portion of an exhaust inlet and a first valve member adapted for engaging and sealing a first valve seat surrounding the first bypass port. The valve assembly further comprises a second bypass port communicating with a second portion of an exhaust inlet and a second valve member adapted for engaging and sealing a second valve seat surrounding the second port. A shaft supports each valve member for rotation about a shaft axis to lift both the first and second valve members from sealing engagement with the first and second valve seats respectively. The first valve seat is inclined relative to the second valve seat and the shaft has freedom of movement in the axial direction.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: December 25, 2012
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Jim McEwan, Lee Robinson
  • Patent number: 8339122
    Abstract: A speed sensor for use in measuring the speed of rotation of a rotationally salient rotating member The speed sensor comprises an electrode and a sensor circuit. The sensor circuit comprises a constant voltage source for supplying a voltage to the electrode to generate an electric field in a dielectric medium. A current detector detects current flow between the constant voltage source and the electrode due to perturbation of the electric field by passage of at least one salient feature of the rotating member through the electric field as the rotating member rotates. The current detector outputs a first signal modulated at a frequency corresponding to the frequency of perturbation of the electric field. The first signal is amplified to produce an amplified signal modulated at a frequency corresponding to the frequency of perturbation of the electric field.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: December 25, 2012
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Calvin Cox, Thomas W. Bach
  • Patent number: 8336806
    Abstract: A flow path is disclosed that is capable of being deployed when needed and stowed in a relatively small space when not in use. The flow path device is flexible and may be made from a variety of materials. In an illustrative embodiment the flow path device is annular and transitions from an ellipsoidal annular shape to a quadrilateral annular shape. A vane box can be disposed at one end of the flow path device. Doors can be coupled to the vane box to cover the flow path device. The doors can be used to provide a structural load path for the flow path device and vane box. The doors and the flow path device can be moved together such that the doors uncover the flow path device as the device is deployed.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: December 25, 2012
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventor: Douglas David Dierksmeier
  • Patent number: 8337565
    Abstract: A method of optimizing the geometry of a femoral stem of hip joint prosthesis is disclosed. The femoral stem comprises a neck and an anchoring blade that is attached to the neck and that tapers towards a distal end with a lateral narrow side comprising a distal straight portion and a proximal arcuate portion corresponding to a curve. The transition between the distal straight portion and the proximal arcuate portion occurs at an outer lateral point. The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point on withdrawal of a profile of the stem from a cavity of complementary shape to the stem.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: December 25, 2012
    Assignee: Smith and Nephew Orthopaedics AG
    Inventors: Dirk Wunderle, Alex Seidl
  • Patent number: 8327911
    Abstract: One embodiment of the present invention is a unique method for forming a cast porous article. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for forming cast porous articles. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: December 11, 2012
    Assignee: Rolls-Royce Corporation
    Inventors: Matthew T. Kush, Max Eric Schlienger, Paul Anthony Withey
  • Patent number: 8330046
    Abstract: An analysis device for analysis of a sample on a test element is provided that comprises at least one component configured to make electrical contact with at least one other component for electrical transmission therebetween. The at least one component generally comprises an injection-molded circuit mount, also called an MID, or molded interconnect device.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: December 11, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Stefan Riebel, Manfred Augstein, Gregor Bainczyk, Albert Grosser, Oliver Kube, Dieter Meinecke, Bruno Thös, Herbert Wieder
  • Patent number: 8328194
    Abstract: A sheet-processing machine comprises a plurality of modules which are passed through one after the other by the sheets to be processed. The modules each have a sheet input interface and/or a sheet output interface, wherein, in at least one of the modules, the sheet input interface and/or the sheet output interface can optionally be coupled to sheet output interfaces and sheet input interfaces, respectively, of at least two other modules.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: December 11, 2012
    Assignee: KBA-NotaSys SA
    Inventors: Gerald Josef Reinhard, Volkmar Rolf Schwitzky, Manfred Georg Stöhr, Johannes Georg Schaede
  • Patent number: 8328509
    Abstract: A turbomachine comprises a housing (71) defining a bearing cavity (71) and a turbine chamber (77a) separated by a first wall. A heat shield (72) is disposed between the first wall and the turbine wheel (77), a heat shield cavity (78) being defined between the first wall and the heat shield (72). The shaft (81) extends through a passage (85) defined at least in part by a first aperture (86) in said wall and a second aperture (87) in the heat shield (72). A first seal (88) is provided between the shaft (81) and said first aperture (86). The housing defines a first gas channel (79) communicating with the heat shield cavity (78) for connection to a pressure source for raising pressure within the heat shield cavity (78). A second channel (92) is provided between the heat shield cavity (78) and said passage (85), the second channel opening to said passage (85) on the opposite side of said first seal (88) to said bearing assembly (82).
    Type: Grant
    Filed: April 10, 2010
    Date of Patent: December 11, 2012
    Assignee: Cummins Turbo Technologies Limited
    Inventors: David Gee, Chris Enright, Robert Holroyd
  • Patent number: 8323287
    Abstract: A method of, and apparatus for, arthroplasty of a knee joint comprising obtaining a desired spacing of the femur from the tibia by inserting a spacer into the knee joint between the femur and the tibia. The spacer is used as a reference for securing a guide jig in position about the knee joint for guiding resection of one or both of the femur and tibia for fitting of tibial and/or femoral prostheses. A method of resecting the femur while moving the tibia through an arc of motion to remove bone to the desired depth, a method of determining the position of the guide jig, the guide jog, an alignment device and the spacer are also described.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: December 4, 2012
    Assignee: Smith & Nephew, Inc.
    Inventors: Leo Arieh Pinczewski, Stephen John Parker, Greg Marik, Richard A. Rocco
  • Patent number: 8322138
    Abstract: A compressor for a turbocharger is supplied with crank case ventilation (CCV) gases from the engine which is turbocharged. The CCV gases are piped into an inlet of the compressor housing which supports an insert with an MWE structure. The MWE structure comprises an outer wall and an inner wall with a gas flow passage defined between them. At high r.p.m. of the compressor impeller air flows through the passage to provide more air volume to the impeller and at low r.p.m. excess air is bled out of the passage for recirculation. The CCV gases are directed to a position upstream of an inlet to the gas flow passage where they emerge through an outlet which may be defined in the insert. The CCV gases may be supplied to the outlet via a chamber defined between the insert and the compressor housing. The arrangement provides for improved mixing of CCV gases with the incoming air and does not compromise noise reduction.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: December 4, 2012
    Assignee: Cummins Turbo Technologies Limited
    Inventor: Neville Jackson
  • Patent number: 8322126
    Abstract: An exhaust device is disclosed that includes a duct that turns an exhaust flow from a gas turbine engine from a first direction to a second direction. A diverter cup is disposed within the duct and serves to split the exhaust flow into two streams as well as introduce cooling air through an ejector pump at the downstream end of the diverter cup. A splitter is disposed downstream of the diverter cup and serves to split the cooling air into two streams which are thereafter mixed with the split exhaust flow. A diffuser is created in the exhaust device between the duct and the splitter. Various cooling slots are also provided in the duct.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: December 4, 2012
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventors: Christopher J. Bies, Stephen A. Bergeron, Bryan H. Lerg, Emil R. Dejulio
  • Patent number: 8322129
    Abstract: A method and system for controlling an exhaust temperature for an internal combustion engine is disclosed. The method and system include determining a range of acceptable charge flows within the internal combustion engine to meet a desired exhaust temperature. The method and system further include controlling the charge flows to fall within the range. Control strategies to utilize the charge flow as a lever to control turbine outlet temperature are disclosed. These strategies utilize the inversion of the cylinder outlet temperature virtual sensor as well as a new turbine outlet temperature virtual sensor to determine the charge flow required to achieve the desired turbine outlet temperature given the current turbine inlet and outlet pressure, SOI, charge pressure, charge temperature, fueling, and engine speed.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: December 4, 2012
    Assignee: Cummins, Inc.
    Inventors: Thomas A. Dollmeyer, Jennifer W. Rumsey, Larry J. Brackney, B. Jerry Song, J. Steve Wills, John N. Chi, John M. Mulloy
  • Patent number: 8322991
    Abstract: A balance weight adapted to be assembled to a nose cone assembly of a turbine engine for improving a balance of the nose cone assembly is disclosed herein. The balance weight is one-piece and formed from a plurality of different materials including at least first and second materials. The first and second materials are arranged substantially heterogeneously relative to one another such that said first and second materials are separate from one another and fixed together.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: December 4, 2012
    Assignee: Rolls-Royce Corporation
    Inventors: Russel MacFarlane, Eric William Engebretsen
  • Patent number: D671846
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: December 4, 2012
    Assignee: Parmigiani Fleurier SA
    Inventor: Michel Parmigiani
  • Patent number: D671980
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: December 4, 2012
    Assignee: Cartier Creation Studio SA
    Inventor: Emmanuelle Sallard
  • Patent number: D671981
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: December 4, 2012
    Assignee: Cartier Creation Studio SA
    Inventor: Emmanuelle Sallard
  • Patent number: D673690
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: January 1, 2013
    Assignee: Neenah Foundry Company
    Inventor: Steven M. Akkala
  • Patent number: D673870
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: January 8, 2013
    Assignee: Lange Uhren GmbH
    Inventor: Anthonie de Haas