Patents Represented by Attorney Davis Bujold & Daniels, P.L.L.C.
  • Patent number: 7381147
    Abstract: A method and a device for controlling functions of an occupational vehicle (1) comprising a driving motor (2), a clutch (3), a service brake (13, 14) that acts upon the wheels (11, 12) of the vehicle, a working device (21), and a hydraulic pump (15) which supplies the actuators (32) of the clutch (3), the service brake (13, 14), and the actuators (19, 20) of the working device (21) with pressure, via hydraulic pressure pipes. In order to reduce the fuel consumption, distribute in an optimal and user-relevant manner, the hydraulic pressure generated by the pump (15), and facilitate operation of such a vehicle, the clutch (3) is automatically opened and the service brake (13, 14) is automatically closed when the load acting upon the working device (21) of the vehicle exceeds a preset threshold or is actuated so as to exceed the threshold.
    Type: Grant
    Filed: July 4, 2003
    Date of Patent: June 3, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Hans Höfler
  • Patent number: 7377153
    Abstract: A roller support assembly for a dynamometer system includes a plurality of bearing support structures wherein each bearing support structure includes at least one roller bearing, at least one vertical support assembly for supporting the at least one roller bearing in a vertical plane, at least one horizontal support assembly for supporting the at least one roller bearing in a horizontal plane, and an installation site structure supporting each of the plurality of bearing support structures. Each of the at least two bearing support structures further includes at least one vertical support assembly for supporting the at least one roller bearing in a vertical plane and each of the at least two bearing support structures further includes a pair of vertical support assembly for supporting the at least one roller bearing in a vertical plane.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: May 27, 2008
    Inventor: Robert M. Bergeron
  • Patent number: 7379807
    Abstract: Within the scope of the method for transfer of characteristic quantities or characteristic lines of an automatic transmission from the final test stand or transmission acceptance test stand to an electronic control, especially to the engine control, the characteristic quantities or characteristic lines of the final test stand or transmission acceptance test stand are recorded or stored on a portable data carrier clearly coordinated with the transmission so that at a later point in time the data can be read in and programmed in the engine control.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: May 27, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Ulrich Remmlinger
  • Patent number: 7377374
    Abstract: The invention relates to a method for determining a point of application of the clutch of an automatic gearbox without a synchronised reverse action. The aim of said invention is to improve the determination of the point of application avoiding the use of sensorial information on an engine. For this purpose, the point of application is determined as each point of the clutch releasing where a torque transmitted by the gearbox is sufficiently important for releasing the teeth (3) of a sliding sleeve (1) in a tooth-to-tooth position against the teeth (4) of the clutch body (2) of the reverse gear toothed wheel.
    Type: Grant
    Filed: January 31, 2004
    Date of Patent: May 27, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Oliver Buchhold
  • Patent number: 7371993
    Abstract: A method of laser micro-machining a work piece, with a laser, including the steps of: locating the workpiece on a carrier forming a part of a transport system, the carrier can be displaced along a path parallel to an X-axis of the workpiece, a Y-axis lying transverse the path, and a Z-axis lying transverse the path; focusing an image generated by an output beam from the laser at a working datum position defined relative to the path which path is established by the transport system to traverse the first datum position; a plane defined by the X- and Y-axis lying substantially perpendicular to the output beam; and displacing the workpiece along the path by way of the transport system so as to enable the work-piece to be subject to micro-machining by way of the laser.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: May 13, 2008
    Assignee: Exitech Limited
    Inventors: Robert Bann, Neil Sykes
  • Patent number: 7372632
    Abstract: An imaging method and imaging system for inspecting features located at a known inter-feature pitch on portions of a target surface. The system includes a lens array having a plurality of lenses wherein the lenses of the lens array have an inter-lens pitch and an inter-field of view pitch corresponding to the inter-feature pitch, and an array of imaging elements having an inter-element pitch corresponding to the inter-feature pitch, whereby the imaging system images only field of view areas of the target surface containing features.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: May 13, 2008
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventor: Todd E. Lizotte
  • Patent number: 7370548
    Abstract: A method for the control and regulation of a transmission brake in an automatic transmission with a countershaft. The transmission brake arrests a transmission input shaft or a countershaft during an upshifting procedure. The speed of rotation (1) of these shafts at the engagement point in time corresponds to the synchronous speed of rotation already established by the transmission output speed of rotation and the ratio of the selected gear stage or approaches this value up to a predetermined tolerance of deviation. The disengagement point in time for the transmission brake is calculated with the aid of the brake rate of change of the countershaft, i.e., the transmission input speed of rotation as well as with the rate of change of the transmission output shaft speed of rotation. The transmission brake is further provided with disengagement, given consideration of lead time, before the calculated disengagement point in time.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: May 13, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Volker Bachmann, Mario Steinborn, Rudolf Kalthoff, Anthony Robert Sayman
  • Patent number: 7363867
    Abstract: A combustion boiler for burning fuel and producing heat to generate steam. A method of minimizing discharging of nitrogen oxides from a combustion boiler comprising the steps of spraying a reducing agent into an overfire air stream and supplying the overfire air stream to the combustion boiler. Vaporizing the sprayed reducing agent at least within about 0.1 seconds of the sprayed reducing agent entering the combustion boiler and reacting the vaporized reducing agent with the nitrogen oxides within the combustion chamber to reduce the nitrogen oxides and minimize discharge of nitrogen oxides from the combustion boiler.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: April 29, 2008
    Inventors: Peter D. Marx, Robert W. Pickering, Charles E. Trippel
  • Patent number: 7364139
    Abstract: A carburetor having a throttle valve in the form of a disc which can be rotated to control flow of an air/fuel mixture through a duct, the throttle disc having a heating element and a temperature sensor formed on at least one surface of said throttle disc; and an electric power supply, the electric power supply being controlled by the temperature sensor, to maintain the temperature of the throttle disc above a predetermined minimum temperature.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: April 29, 2008
    Inventor: Bernard Bollons
  • Patent number: 7363939
    Abstract: A bleed valve (1) for a pipe into which a non-return function is integrated. The bleed valve is preferably designed to be a thermal valve.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 29, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Anton Fritzer, Tobias Pfleger, Hans-Ulrich Nonnast
  • Patent number: 7364838
    Abstract: A grayscale mask for imaging operations, including a substrate layer and a mask layer having a plurality of apertures forming a mask pattern to form a grayscale image. Each edge of each aperture includes a plurality segments forming a serrated edge, resulting in mixed edge diffraction. The apertures may be in an irregular and non-symmetric pattern and may be of variable size. A random diffusing layer may be in proximity to or integral with the substrate layer. The grayscale mask may be used for generating an optical element by printing the initial grayscale mask onto a photoresist layer and transferring the photoresist pattern onto a transparent layer and the mask may include areas or layers of variable transmission. Also described are methods for diffractive intensity averaging, diffractive error diffusion, diffractive spatial dithering, and diffractive intensity averaging.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 29, 2008
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventor: Todd E. Lizotte
  • Patent number: 7364523
    Abstract: A transmission (1) comprises a gear input shaft (2), a gear output shaft (3), several shift elements (7, 8, 9, 10, 11, 12, 13, 19), at least one planetary gearset (5) and an electrical machine (14). A required gear ratio can be adjusted as a function of the activation of the shift elements (7 to 13, 19) and the electrical machine (14). The electrical machine (14) can be linked to a first shaft (21) of the first planetary gearset (5) by way of a first shift element (12) and to a second shaft (18) of the first planetary gearset (5) by way of a second shift element (13). At least the first shift element (12) or the second shift element (13) is disposed in the axial direction of the gear input shaft (2) adjacent to the electrical machine (14).
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: April 29, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Axel Heitmann, Stefan Kilian, Oliver Steffen
  • Patent number: 7360977
    Abstract: A machine tool transmission, in particular a spindle transmission, with which the force and/or the torque transfer from an output shaft (3) of a transmission (1) takes place directly on a spindle (15). The spindle (15) is placed co-axially over the output shaft (3). An integration of a sealed rotary feed-through is proposed to serve as a transfer device for the flow of cooling fluids, oil or air between the transmission output shaft and the spindle (15).
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: April 22, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Harald Eckert
  • Patent number: 7360458
    Abstract: A method and a device for determining the torques on gear shafts. With the help of this method and the device in the case of a constant transmission ratio, the rotational speed of a first gear shaft (2, 19) and the rotational speed of a second gear shaft (3, 22) are measured cyclically. A first torque is present on the first gear shaft and a second torque is present at the second gear shaft. The second gear shaft is driven by the first gear shaft directly or indirectly, via gears (5, 6, 7, 8; 20, 21). A quotient is computed from these two rotational speeds, and stored so the current quotient can be compared with the quotient of the previous measuring cycle. In the case of a difference in the quotients of the current and the previous measurement, a change in the torque of the first gear shaft can be assumed.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: April 22, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Karl-Fritz Heinzelmann
  • Patent number: 7361855
    Abstract: A device for establishing an electrical connection between two parts, in particular vehicle parts, which can move such that they can pivot with respect to one another about an axis, a first part (3) being provided with a current transmitter unit (1), and a second part (4) being provided with a current receiver unit (2), the current transmitter unit (1) and the current receiver unit (2) each being arranged in the region of the axis (5) such that the current receiver unit (2) and the current transmitter unit (1) come into contact with one another at least in an end position of the pivoting movement of the parts (3, 4).
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: April 22, 2008
    Assignee: Magcode AG
    Inventor: Hermann Neidlein
  • Patent number: 7357235
    Abstract: An automatic gearbox for a vehicle with at least one hydraulically actuated shifting element made as a transmission brake or transmission clutch. The shifting element has an inner disk carrier and an outer disk carrier where inner disks and outer disks are arranged rotationally fixed but axially displaceably. The disks are arranged in alternating sequence one after the otherto form a disk pack which can be acted upon by an actuator with an axial actuation force to engage the shifting element, and in which one disk carrier is connected to one of a non-rotating or a rotating gearbox component and the other disk carrier can be connected, via a synchronization device, to a rotating gearbox component. To reduce the shifting time that can be achieved with such a gearbox when carrying out a transmission ratio change process, a synchronization device is actuated by way of a second actuator.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 15, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Thilo Schmidt, Christian Popp
  • Patent number: D567384
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: April 22, 2008
    Assignee: Royal King Infant Products Co., Ltd.
    Inventors: Pravin Sakulsacha, Rungkam Chalermwinsuekun
  • Patent number: D568097
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 6, 2008
    Inventor: Jean-Luc Thuliez
  • Patent number: D568119
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: May 6, 2008
    Inventor: Rodney Horton
  • Patent number: D569644
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: May 27, 2008
    Assignee: Aichi Co., Ltd.
    Inventor: Taku Kumazawa