Patents Represented by Attorney, Agent or Law Firm Davis and Bujold
  • Patent number: 8311717
    Abstract: A method of operating a vehicle drive train, whereby the drive train comprises a drive unit, a transmission, and an all-wheel splitter having an automatically operating clutch, positioned between the transmission and the output. The clutch is operated in a continuous slip mode and in such a way that the all-wheel splitter splits the transmission output torque for variable torque distribution to driven axles. The splitting of the output torque to the driven axles is performed by a control unit, implemented into the all-wheel drive strategy, so that the output torque, less a predetermined nominal torque, is transferred to a first axle, and the nominal torque is transferred to a second axle. When defined operating conditions are met, a limiting of the torque, set by the drive unit, and/or the nominal torque, set by the all-wheel strategy, occurs to avoid a thermal overloading of the clutch of the all-wheel splitter.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: November 13, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Wilfrid Eberhard, Gerhard Hermann Martin
  • Patent number: 8309488
    Abstract: An exhaust gas purifying catalyst includes a catalyst substrate and a catalyst coating layer containing a noble metal and a refractory inorganic oxide. The catalyst coating layer includes an upstream portion located upstream and a downstream portion located downstream in a flow direction of an exhaust gas. The upstream portion has a layered structure including an upstream portion inside layer containing a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide and an upstream portion outside layer containing a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide. The upstream portion outside layer and the downstream portion contain Rh as the noble metal, and an amount of Rh contained in the upstream portion outside layer is larger than an amount of Rh contained in the downstream portion.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: November 13, 2012
    Assignee: Cataler Corporation
    Inventors: Ichiro Kitamura, Kenichi Taki, Akimasa Hirai
  • Patent number: 8311712
    Abstract: A method of operating of a drivetrain, having at least a drive motor and an automatic transmission with at least five shift elements, to improve a shift speed such that during a first upshift or a first downshift, at least one required shift element is prepared such that, when a synchronization point is reached, the successive upshift or the successive downshift can be immediately carried out. The method comprises the steps of requiring, at most, two of the at least five shift elements be disengaged and a remainder of the shift elements be disengaged for each gear for transferring one of torque and force; and one of increasing and decreasing a torque of the drive motor, relative to a torque of the drive motor derived from a driver's wish, during one of the first upshift or downshift and the successive upshift or downshift to assist with an overlapped implementation of the successive upshifts or the successive downshifts.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 13, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Klaus Steinhauser, Christian Popp
  • Patent number: 8311715
    Abstract: A method for monitoring frictional engagement in an automatic or automated motor vehicle transmission having a hydrodynamic starter element when the transmission is in a preset neutral or parking position and the automatic or automated motor vehicle transmission controlled by this method. When the motor vehicle is at or close to a standstill in a preset neutral or parking position, the current transmission rotational input speed and a current engine rotational speed of the drive motor are determined and based on the speed ratio between the current transmission rotational input speed and the current engine rotational speed an error is found to be present if the speed ratio is less than a predefined threshold value, which is less than/equal to 1.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 13, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Georg Gierer, Christian Popp, Thilo Schmidt, Klaus Steinhauser
  • Patent number: 8306716
    Abstract: A method for controlling a desired speed of a vehicle having a retarder operating in an overrun condition is proposed, such that the desired speed of the vehicle is controlled by a continuously adjustable retarder braking system and/or an engine braking control system.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: November 6, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Hugo Burkhart, Bernd Aumann
  • Patent number: 8303455
    Abstract: A multi speed transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples shaft (4) which can couple housing (G) via brake (04) and the carrier of set (P1) couples shaft (3) which can couple housing (G), via brake (03), and drive shaft (1) via clutch (13), and shaft (6) via clutch (36). Shaft (6) couples the ring gear of gearset (P2) and the sun gears of gearsets (P3, P4). Shaft (1) couples the sun gear of gearset (P2) and is operatively connected to the carrier of gearset (P3). Shaft (7) couples the ring gear of set (P1) and the carrier of gearset (P2). The ring gear of gearset (P4) couples shaft (5) which can couple housing (G) via brake (05) and output shaft (2) operatively couples the carrier of gearset (P4) and the ring gear of gearset (P3).
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 6, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
  • Patent number: 8299779
    Abstract: A device for measuring the intensity of an electric current which has a simple and economical design and offers a high measurement dynamic compatible with combined measurement, protection and energy metering applications. The device (1) is insensitive to parasitic fields and to the position of the electric conductor to be measured, and that can be opened to facilitate placement thereof. The device (1) defines a closed path (C), about a conductor (2) for the circulation of the lines of magnetic field induced by the current to be measured, and the path is formed by two plates (30) having a high magnetic permeability separated by two air gaps (E) closed by two identical and opposed electric coils (4) for supplying a voltage proportional to the derivative of the intensity (I) of the current to be measured. The device (1) reduces the is compact so that it can be easily integrated into any type of electric appliance.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: October 30, 2012
    Assignee: Socomec S. A.
    Inventor: Christian Kern
  • Patent number: 8297024
    Abstract: A method of reinforcing a previously existing structure comprising the steps of constructing a ring foundation surrounding and reinforcing a previously existing foundation. Thereafter, securing reinforcing wall panel assemblies to previously existing wall structures with the wall panel assemblies being external to and secured to upright members of the previously existing wall structures and supported by the ring foundation. Securing platform segments forming reinforcing floor assemblies to upright structural elements of the reinforcing wall panel assemblies, the platform segments being supported by previously existing floor structures during assembly of the platform segments and attachment of the platform segments to the reinforcing wall panel assemblies. Then removing the previously existing floor structures.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: October 30, 2012
    Inventor: Raymond W. Hawes
  • Patent number: 8297177
    Abstract: Ballistic projectile armour includes a hard shell, kinetic energy absorption material and an energy diffusing backing layer. The hard shell is made from a material capable of deforming a projectile and slowing a velocity of the projectile. The kinetic energy absorption material is capable of deforming to further slow and capture the projectile after it has pierced the hard shell. The energy diffusing backing layer is capable of diffusing energy transferred from the projectile into the kinetic energy absorption material. Elastic containment keeps the kinetic energy absorption material sandwiched between the hard shell and the energy diffusing backing, while accommodating expansion of the kinetic energy absorption material during energy absorption.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: October 30, 2012
    Assignee: In the Line of Fire Inc.
    Inventor: Darren S. Schulte
  • Patent number: 8286952
    Abstract: A vapor distributor for use in atmospheric or vacuum columns includes a new design of vapor inlet device, or vapor horn, to provide superior mixing and distribution of a tangential first feed and a vertical second feed. New vapor inlet device has an inlet dividing the first feed into two portions, each flowing in respective housings in opposed circulation directions, and a plurality of vanes for redirection of vapor. Mixing and distribution of feeds by the vapor distributor is further enhanced by inclusion in vapor distributor of a mixer and vapor directing plates.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: October 16, 2012
    Assignees: AMT International, Inc., Petroliam Nasional Berhad
    Inventors: Adam T. Lee, Farzad G. Tahmassi, Lindsey Vuong, Zainab Kayat, Mohd Rizal Bin Abdul Rahman, Arman Bin Anuar
  • Patent number: 8287414
    Abstract: A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the gear set couples a second shaft of the variator. First and second shift elements are provided to switch between first and second gear ratio ranges. Via the variator, the gear ratio is continuously variable within the gear ratio range and the two gear ratio ranges overlap. To implement the first gear ratio range, the second shaft of the gear set is connected, via the first shift element, to the transmission output, and to implement the second gear ratio range, the third shaft of the planetary gear set is connected, via the second shift element, to the transmission output.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: October 16, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Tobias Weber, Gerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz
  • Patent number: 8289718
    Abstract: A connector for electrical and mechanical interconnection of first and second mechanically adjacent modules with one another. The first module includes a first electrical connector and an alignment pin and the second module includes a printed circuit board floatingly and displacably mounted on the second module with at least one alignment hole aligned for alignment with the alignment pin of the first module and a second electrical connector aligned for engagement with a corresponding first electrical connector of the first module. During assembly, the alignment pin of the first module engages the alignment hole of the second module and displaces the printed circuit board to align the second electrical connector with the first electrical connector.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 16, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Schober, Werner Beck, Thomas Deichler
  • Patent number: 8290667
    Abstract: A method for the operation of a traveling power take-off shaft clutch connected to a drive motor, in a case of known wheel or vehicle speed, the speed of rotation of the power take-off shaft, electronically evaluated through the speed of rotation of the motor, can be made to agree in ratio with the wheel speed.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: October 16, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Stefan Prebeck, Kurt Schachner, Günter Pilat
  • Patent number: 8287420
    Abstract: A transmission with forward and reverse gears comprising planetary gearsets, shafts and shift elements. The sun gear of gearset (P1) couples shaft (5) that is connectable, via brake (05), to housing (G). The carriers of gearsets (P1, P2) couple shaft (8) which is connectable, via clutch (18), to drive input shaft (1). Input shaft (1) is connectable, via clutches (16, 14), respectively to shafts (6, 4). Shaft (6) couples the ring gear of gearset (P3). Shaft (4) is connectable, via brake (04), to housing (G) and couples the sun gears of gearsets (P4, P3). The ring gears of gearsets (P1, P2) couple drive output shaft (2). The carrier of gearset (P3) couples shaft (7) which couples a component connecting the ring gear of gearset (P4) and the sun gear of gearset (P2). The carrier of gearset (P4) couples shaft (3) which is connectable, via brake (03), to housing (G).
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: October 16, 2012
    Assignee: ZF Friedrichshafen
    Inventors: Gerhard Gumpoltsberger, Martin Brehmer, Peter Ziemer, Peter Tiesler, Gabor Diosi, Josef Haupt
  • Patent number: 8286532
    Abstract: A transmission control having an electronic control unit (17), at least one mechatronic component (19, 20, 21), and a housing (2) comprising an upper housing part (3), a lower housing part (5), and a central housing part (4). These housing parts together form at least one receiving space (8, 10, 11, 12) for the control unit (17) and/or the mechatronic component (19, 20, 21) which is arranged between the upper housing part (3) and the lower housing part (5). The control unit (17) and/or the at least one mechatronic component (19, 20, 21) are fastened on the upper housing part (3). A process for installation of a transmission control (1) is also disclosed.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: October 16, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Hubert Konig, Kim Fuhrer, Markus Ulbricht, Thomas Puth
  • Patent number: 8287988
    Abstract: A powder-coated glass panel in which print (5) on the back (4) of a transparent polyester coating (2) carried by a glass sheet (1), is covered by an epoxy coating (6), and the longitudinal margin (9) of metal foil (7) covering the edges of the panel overlaps onto the back of the coating (6) to relieve thermal stress in the sheet (1). Heat to melt and cure the powders forming the coatings (2, 6) and to cure the printing ink (5) is applied through the sheet (1) from infra-red lamps (22) mounted within an internally-reflective trough (23). The frequency of the radiation is varied from high to low during heating. A double-glazed spandrel unit includes the panel (31) mounted with spacing behind a facing-sheet (32), and with metal foil (34) covering the edges of the unit and overlapping marginally (37) onto the back (38) of the panel (31) for thermal-stress relief.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: October 16, 2012
    Assignee: Thorstone Business Management Limited
    Inventor: Roger John Leach
  • Patent number: 8282528
    Abstract: A method of operating a vehicle drive train (1) comprising a combustion engine (2), a turbo charger (22) assigned to the combustion engine, a mechanism for the injection of additional compressed air into an air intake system (8) of the combustion engine (2), a start and shift clutch (60), and a transmission (62). To optimally prepare and execute a start procedure of such an equipped vehicle, additional compressed air is only injected into the air intake system (8) of the combustion engine (2) if, depending upon the actual operating situation of the vehicle, the injection of additional compressed air benefits the safety of the driver, fuel consumption, drive comfort and/or the clutch wear.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: October 9, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Jager, Christoph Ruchardt, Roland Mair
  • Patent number: 8282524
    Abstract: A transmission device is proposed for distributing a drive torque to at least two output shafts (Ab1, Ab2), comprising a differential (2) that is permanently connected to the output shafts (Ab1, Ab2), wherein a double planetary gearset (4) is provided co-axially to the output (Ab2) between the differential cage (3) of the differential (2) and the output (Ab2) of one side, said planetary gearset comprising a first sun gear (5) and a second sun gear (6), a first planetary range (7), an intermediate planetary range (8), and an internal gear (9), herein the internal gear (9) is connected to the differential cage (3) and the planet carrier (10) of the planetary gearset (4) is connected to the output (Ab2), wherein the first sun gear (5) meshes with the first planetary range (7) and can be coupled to the housing (G) by means of a brake (11) in order to shift the torque in one direction, and wherein the second sun gear (6) meshes with the intermediate planetary range (8) and can be coupled to the housing (G) by mean
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: October 9, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Alois Böck, Detlef Baasch, Gerhard Gumpoltsberger, Thomas Rosemeier
  • Patent number: 8276722
    Abstract: The repeating transverse support is either a one-branch or a two-branch (15, 16) sleeper which is pressed against the bed plate (8) by elements which secure the directional guide rail (2). The terminal ends of this sleeper, which are in the form of mounting plates (23, 24), each support an electrical power supply lateral profile (33, 34) by way of an electrical insulator (27, 28) and an adjustment member. This repeating transverse support is of interest to the manufacturers of tracks for electrically powered guided road vehicles.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: October 2, 2012
    Assignee: Lohr Industrie
    Inventor: Martin Klotz
  • Patent number: 8272989
    Abstract: A variable-ratio transmission for distributing a drive torque to at least two drive output shafts (8, 9), comprising a conventional differential (1) is proposed, which comprises an electric motor (5) for distributing the drive torque directly between the drive output shafts (8, 9) and a plus planetary gearset (2) that serves as a variable-ratio unit, such that the plus planetary gearset (2) is arranged coaxially with a drive input shaft (8), the outer sun gear (3) of the plus planetary gearset (2) is connected to the output (8), on the side of the differential (1) facing toward the planetary gearset (2), and the web (4) of the planetary gearset (2) is connected to the electric motor (5), and such that the inner sun gear (6) of the planetary gearset (2) is connected by a countershaft (7) to the other drive output shaft (9).
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: September 25, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Detlef Baasch, Christoph Pelchen, Thomas Rosemeier