Patents Represented by Attorney Davis Bujold & Daniel, P.L.L.C.
  • Patent number: 7421920
    Abstract: A multi-geared high-low clutch for construction machines with a torque converter, a drive shaft, an output shaft and several jack shafts, with distributed idlers on the shafts, fixed wheels and shift clutches, which form several reduction gear units for the gearshift and direction circuit, containing four forward gears and two reverse gears, whereby output shaft is also used as a jack shaft for a gear, with which the corresponding jack shaft of forward gear unit and the corresponding jack shaft of another forward gear unit engage with drive shaft, where both jack shafts can be rotated in every desired angle position around drive shaft, whereby corresponding jack shafts of the gears, applied to drive shaft, are arranged one behind the other on a side of the drive shaft and whereby, that corresponding jack shafts of the gears, can currently be rotated around the next visibly arranged jack shaft.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: September 9, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Norman Regenscheit
  • Patent number: 7421919
    Abstract: A double clutch transmission with a double clutch, the input side of which can be driven and the output sides each communicate with one of two transmission input shafts that are arranged coaxially relative to one another, with an intermediate shaft and with fixed or idler gears that are mounted or rotatably supported on the shafts, and with shifting units that are allocated to the idler gears, with which the idler gears can be non-rotatably connected to the properly allocated shaft for the purpose of realizing gear ratio. To allow a more cost-effective production of this type of transmission, the fixed gears for the reverse gear and first gear are arranged axially directly in front each other on the same transmission input shaft, or that the fixed gears for the reverse gear and for the first gear are designed as a single common fixed gear.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: September 9, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Gumpoltsberger, Jens Patzner
  • Patent number: 7419456
    Abstract: A known device for increasing the functional reliability for a hydraulic circuit of a hydraulic clutch having a pressure reservoir (25) and a release cylinder (5) which comprises a primary piston (14) and a secondary piston (16). A compensation volume is developed in the sense that when the vehicle is at a standstill and the parking brake released, an unintentional release of the clutch is prevented. A pressure-monitoring/pressure-supply device (28) is used for determining a reference operating pressure and establishes a static pressure which, in case of any system error, only allows displacement of the secondary piston (16) such that the contact pressure of the clutch discs, against one another, is still sufficient to maintain the vehicle at a standstill.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: September 2, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Knoblauch, Christoph Rüchardt, Otto Ebner, Klaus Schweiger, Matthias Winkel, Andreas Schwenger, Marcus Gansohr
  • Patent number: 7419455
    Abstract: An apparatus and a process for the prevention of the rollback of a vehicle with a vehicle braking system (18), wherein a braking system (18) comprises a vehicle brake pressure modifying apparatus (20); a device (28, 34, 36) which are enabled to recognize a forward movement of the vehicle, and a brake control apparatus (16), which is connected to the vehicle brake pressure modifying apparatus (20) and the device (28). There is generated in the control apparatus (16) a signal which, upon a standstill of the vehicle, activates a brake and sensor combination (8, 28) which acts upon a transmission (2) of the vehicle, the brake and the sensor combination (8, 28) being supplementary to the brakes of the vehicle brake system (18) and, upon a recognition of a forward motion of the vehicle, the braking fluid pressure in the vehicle brake pressure modifying apparatus (20) is reduced and thus the brake and the sensor combination (8, 28) acting upon the transmission is released.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: September 2, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Wilhelm Härdtle, Manfred Schwab
  • Patent number: 7418884
    Abstract: A shifting device for shifting a transmission with a shifting shaft upon which a plurality of shifting forks are located in an axial, slidable manner for carry out desired shifting procedures. The shifting device includes a selection apparatus for choosing the shifting fork to be activated for carrying out the shifting procedure and a blocking mechanism, which prevents movement of each of the non-chosen shifting forks. The blocking mechanism is located on an additional shaft which extends parallel to the shifting shaft and supports elements of the selection apparatus. A first actuator axially displaces the shifting shaft, when carrying out of the shifting procedure, and another actuator causes the additional shaft to rotate for choosing a desired the shifting fork to carry out the shifting procedure and for preventing movement of non-chosen shifting forks.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 2, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Bernd Schepperle
  • Patent number: 7416069
    Abstract: A clutch arrangement in an automatic transmission, comprising two axially adjacent multi-disk clutches (B, E) to each is assigned a piston/cylinder arrangement for axially actuating the clutch, a pressure compensation space for a dynamic clutch actuation pressure compensation and a mechanism for supplying lubricant or cooling medium. The aim is to reduce the axial overall length of a transmission of this type. The disk packets of both clutches (B, E) are placed one above the other in a radial manner, the pressure compensation space (25) for the radially outer clutch (B) is permitted to axially border on the pressure space (8) for actuating the piston (17) of the radially inner clutch (E), and the lubricant or cooling medium flow (30) for the radially outer clutch (B) is directly tapped from the pressure compensation space (25) for actuating the outer clutch (B).
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 26, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Peter Tiesler
  • Patent number: 7416071
    Abstract: A braking method for a vehicle is proposed as a safety measure and replacement function if the brake system fails, in particular the X-by-wire brake system of a motor vehicle, in which the vehicle is braked with the help of the transmission by a defined engagement of frictional shift elements until the vehicle comes to rest, such that the combination of frictional shift elements actuated when the vehicle's working brake system fails does not correspond to the shift logic of a gear during normal driving operation of the vehicle.
    Type: Grant
    Filed: May 15, 2004
    Date of Patent: August 26, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Christian Popp, Peter Schiele, Christian Schwemer, Georg Gierer, Klaus Steinhauser, Bernd Allgaier
  • Patent number: 7416140
    Abstract: Disposable cup for preparing, applying and preserving a paint to be set up on a paint spray gun characterized in that it includes on one of its end faces a closable vent device (7) forming a vent valve with valve duct (22) and valve plug (25) which allows when opened, to let the air pass for occupying the inner volume that empties and when closed, to close liquid-tightly the opening (6) of air passage to form a container for the preparation of the paint and then to form a pot for the preservation of the leftover paint. This invention is of interest to manufacturers of paint spray guns.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: August 26, 2008
    Inventors: Michel Camilleri, Joseph Guarino
  • Patent number: 7416379
    Abstract: The invention relates to an interlacing device which can be used automatically to interlace long products on a transport pallet in an economical and optimum manner, which can be adapted to tubes of any length and which operates concurrently with the palletizing machine. The inventive interlacing device (10) is characterized in that it comprises at least one interlacing gantry (11) which extends parallel to the palletized products along at least part of the length thereof and which comprises at least one wire guide (20), the wire guide being fed by at least one interlacing (12?) link reel (12). The aforementioned interlacing device (10) also comprises drive means (14) which are connected to the interlacing gantry (11) in order to move same alternatively between at least two end positions such as to move the guide wire (20) alternatively from one side of the transport pallet (7) to the other in at least one interlacing plane (P) which is essentially perpendicular to the palletized products (2).
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: August 26, 2008
    Assignee: Pack Industrie S.A.
    Inventor: Yves Roesch
  • Patent number: 7416502
    Abstract: A hydrostatic mechanical power-split transmission with a continuously variable gear ratio comprises a hydrostatic transmission part (1) consisting of a first hydrostatic unit (13) with an adjustable volume, a second hydrostatic unit (A) with a constant volume, and a mechanical transmission part (2) comprising a summing transmission and a range transmission, the summing transmission and the range transmission are arranged in an axially staggered manner in relation to the hydrostatic units.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: August 26, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Peter Ulbrich
  • Patent number: 7418327
    Abstract: A method for determining a control standard of an active steering device (10) of a vehicle (1) controllable by a control device (11). A driving dynamic of the vehicle (1) is influenced according to the control standard. The control standard is determined according to a nominal yawing rate calculated at least with reference to different actual operating parameters of the vehicle and one dynamic vehicle state determined according to the nominal yawing rate and actual operating state parameters. The control standard is superimposed on a steering transit angle preset by a driver so that an existing actual yawing rate is changed in direction of the nominal yawing rate.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 26, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Christoph Pelchen, Andreas Thies, Thomas Rosemeier
  • Patent number: 7408687
    Abstract: A laser beam delivery system for transforming a laser energy profile into a desired laser beam output energy profile. The laser beam delivery system comprises a laser for generating a laser beam along a beam path, at least one extra-cavity harmonic generation element being located along the beam path for generating harmonic multiples of a beam input frequency, and an extra-cavity beam expansion element, located before the at least one harmonic generation element, for expanding and collimating the laser beam prior to the laser beam being multiplied by the at least one harmonic generation element. The beam expansion element may be a refractive lens.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: August 5, 2008
    Assignee: Hitachi Via Mechanics (USA), Inc.
    Inventor: Todd E. Lizotte
  • Patent number: 7404779
    Abstract: A planetary transmission which has a drive shaft, an axial bearing, an internal gear, an axially displaceable sliding collar and a lubrication circuit and an output shaft which is mounted the transmission housing by an external bearing and an internal bearing. The housing is provided with an oil intake (13) which is connected to an oil line (16) with the external bearing (5) of the output shaft, which is linked by an oil feeding circuit with the axial bearing (9) of the output shaft. The axial bearing (9) is connected with an interior gear bearing by an interior gear (17), the interior gear (17) is encapsulated through a wall section (18). An oil discharge (14) is connected with an oil pump located outside the planetary transmission which, on the other hand, is connected with the oil intake (13).
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: July 29, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Harald Eckert
  • Patent number: 7404755
    Abstract: A process for artificially ageing blocks, in particular concrete blocks, vitrified bricks and natural stones, provides that the blocks are applied to an underlying surface. Essentially freely movable distressing bodies are applied to the surface to be worked of the blocks. The blocks and the distressing bodies are brought into movement in relation to one another by a vibrating motion of the underlying surface in such a way that the distressing bodies act on the surface and the adjoining, exposed edges of the blocks.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: July 29, 2008
    Assignee: Baustoffwerke Gebhart & Sohne GmbH & Co. KG
    Inventors: Hans Gebhart, Martin Rothdach, Thomas Riedle, Hermann Sauter
  • Patent number: 7404706
    Abstract: A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a plurality of self-rotation preventing device for preventing the orbiting scroll from rotating on its own axis. On the rear surface of the orbiting scroll, a reinforcement bearing plate is fixed with a central bolt and an outer circumferential bolt. A follower of the self-rotation preventing device is provided in the reinforcement bearing plate. An oil-supply hole is formed through the reinforcement bearing plate to supply oil to the follower.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: July 29, 2008
    Assignee: Anest Iwata Corporation
    Inventors: Hidetoshi Ishikawa, Masaru Tsuchiya
  • Patent number: 7404676
    Abstract: An axial securing system for the wheel bearing of a pole-guided vehicle is described, in which the wheel bearing is positioned in line with the pole pivot point (1) and centrally with respect to the wheel area, the system comprising at least two clip-rings (3) seated in grooves (7), and the parts of the housing (4, 5) that form a gap (6) over the clip-rings (3) are extended in the direction of the clip-rings (3) so that the gap (6) above the clip-rings (3) is smaller than the grooves (7) in which the clip-rings (3) are seated.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: July 29, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Frank Stübner
  • Patent number: 7401544
    Abstract: A method of installing annular seals on a plunger. A first step involves positioning an annular seal on a seal installation tool adapted to hold the annular seal in an expanded state. A second step involves positioning the annular seal so that the annular seal overlies a body of a plunger. A third step involves transferring the annular seal from the seal installation tool to a seal groove in the body of the plunger.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: July 22, 2008
    Assignee: Fourth Dimension Designs Ltd.
    Inventor: Murray R. Townsend
  • Patent number: 7401873
    Abstract: A method for preventing a stationary vehicle from unintentionally rolling away. The transmission is not in a neutral position. By activating a brake, a holding mode is actuated whereby a brake is released, dependent upon the displacement of a clutch, which determines the actual takeover torque of the clutch and the holding mode can be deactivated.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: July 22, 2008
    Assignee: ZF Friedrichshafen AG
    Inventor: Erwin Werner
  • Patent number: D575962
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 2, 2008
    Inventors: Perry Senko, Scott Degelman
  • Patent number: D577517
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: September 30, 2008
    Assignee: Aichi Co., Ltd.
    Inventor: Taku Kumazawa