Tamper Patents (Class 404/133.05)
  • Patent number: 10214864
    Abstract: In a method for stabilizing an earth formation exposed after removal of a track and ballast, in a first working pass in a work section following a rear crawler track with regard to a working direction, parallel to the removal of the ballast the earth formation is loosened up, aggregates are introduced, and grading takes place. In a second working pass, the earth formation to which aggregates have been added is mixed thoroughly by getting picked up by means of a clearing chain and transported onward to a discharge point located behind the rear crawler track and discharged again upon the exposed earth formation, after which, by grading and consolidating the discharged earth formation, a rehabilitation layer is formed.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 26, 2019
    Assignee: Plasser & Theurer Export von Vahnbaumaschinen Gesellschaft m.b.H.
    Inventor: Manfred Brunninger
  • Patent number: 10018611
    Abstract: The invention relates to a method of, and system for, obtaining an indication of the soil strength of soil over which a compactor roller travels. The method includes determining the depth to which a drum of the compactor roller penetrates into and depresses the soil when the compactor roller travels over a soil surface. The system includes a compactor roller, a measuring arrangement and a processor which is operatively connected to the measuring arrangement and which is configured to process data received from the measuring arrangement. The measuring arrangement includes an inertial measurement unit which is operatively connected to the compactor roller, wherein the arrangement is configured to obtain an indication of the soil strength of soil over which the compactor roller travels during operation, by determining the depth to which the drum penetrates into and depresses the soil over which it travels.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: July 10, 2018
    Inventor: Roger Arnold Stromsoe
  • Patent number: 9856612
    Abstract: A compactor for compacting a jobsite having a plurality of work areas has a frame, a compacting element coupled to the frame, and a control system. The control system receives a plurality of vibration measurements from a plurality of vibration sensors located at a plurality of measuring locations, determines a plurality of vibration distances where the plurality of vibration distances represent a distance and a direction for each vibration sensor to the compactor, and determines a projected compaction state for each of the plurality of work areas based on the plurality of vibration measurements and the plurality of vibration distances.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 2, 2018
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Nicholas A. Oetken
  • Patent number: 9759708
    Abstract: A device and method of communicating the temperature of paving material on a surface, including receiving temperature and position information of a portion of the paving material, determining a plurality of predicted temperatures of the paving material each associated with a plurality of positions of the paving material with a temperature and positional model, and displaying the plurality of predicted temperatures of the paving material at the plurality of positions of the paving material with respect to at least one machine.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: September 12, 2017
    Assignee: Caterpillar Paving Products Inc.
    Inventors: John Marsolek, Nicholas Oetken
  • Patent number: 9645071
    Abstract: A method to determine a slip state of the compactor roller of a soil compactor caused by an oscillation motion of a compactor roller, comprising the steps: a) Preparation of an acceleration quantity related to the oscillation motion of the compactor roller b) Based on the acceleration quantity, preparation of an acceleration frequency spectrum, c) Based on the acceleration frequency spectrum, determining the slip state of the compactor roller.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 9, 2017
    Assignee: HAMM AG
    Inventors: Johannes Pistrol, Fritz Kopf, Werner Völkel, Sebastian Villwock
  • Patent number: 9284697
    Abstract: A working device for ground compaction comprises an upper mass, a guide device coupled to the upper mass and intended to guide the working device, a lower mass which can move relative to the upper mass, which is movably coupled to the upper mass via a spring device, and which has a ground contact plate, and a vibration-generating device for producing a relative movement between the upper mass and the lower mass. Furthermore, a drive for driving the vibrating-generating device is provided, wherein the drive comprises an electric motor. The electric motor is supplied with electrical energy via an electrical energy store arranged on the guide device.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: March 15, 2016
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Michael Steffen
  • Patent number: 9062431
    Abstract: A device for compaction is provided that includes a compaction tool and a vibration device. The compaction tool is adapted to be lowered vertically into a soil area to be compacted. The vibration device being configured to be placed at an upper end on the compaction tool. The compaction tool being moveable only in the vertical direction by the vibration device. The compaction tool at its bottom end has a tool head on which at least one ripping tool is arranged, which is pivotable around a horizontal pivot axis into a first position and into a second position. In the first position, the at least one ripping tool is oriented substantially parallel to the compaction tool and in the second position is oriented substantially radially to the compaction tool and radially projects beyond a diameter of the tool head.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 23, 2015
    Inventors: Ulf Koehler, Joerg Gnauert
  • Patent number: 8721218
    Abstract: A vibrating plate for compacting soil comprises an upper mass; a lower mass, which is elastically coupled to the upper mass and which has at least one soil contact plate, and; a vibration generator device that acts upon the soil contact plate. The vibration generator device comprises at least four unbalanced masses that can each be rotationally driven about a rotation axis, the rotation axis of at least two of the unbalanced masses being arranged at an angle to the rotation axes of the other unbalanced masses. One of the unbalanced masses depicts a reference unbalanced mass that does not require its own phase adjusting device. On the other hand, a separate phase adjusting device is assigned to each of the other unbalanced masses, enabling the phase position of these unbalanced masses to be individually adjusted with regard to the reference unbalanced mass.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: May 13, 2014
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Otto W. Stenzel
  • Patent number: 8708599
    Abstract: A soil compacting device has an upper body and a lower body which is coupled to the upper body by a spring device and which has a soil contact element. Furthermore, a drive generates is provided for generating an operating motion of the soil contact element, and an energy store is provided for storing electrical energy. A cooling air flow, which is guided through a cooling air flow guide along the energy store, can be created by an air conveying device.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 29, 2014
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Michael Steffen
  • Patent number: 8602680
    Abstract: A vibrating plate comprises a vibration generator device, which can be controlled in such a manner that the direction of the action of force can be set at a number of locations, particularly in more than two locations. In addition, an advance adjusting device is provided for controlling the vibration generator device whereby the direction of the action of force is set in a position in which a maximum possible advance of the vibrating plate is reached. The direction of the action of force can be changed according to a change in the surroundings of the vibrating plate, particularly to the slope and/or the hardness of a subsoil to be compacted by a soil contact plate. Alternatively, the direction of the action of force can be changed according to the wishes of the operator.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: December 10, 2013
    Assignee: Wacker Neuson Produktion GmbH & Co., KG
    Inventors: Michael Fischer, Otto W. Stenzel, Oliver Kolmar, Martin Awrath, Walter Unverdorben, Hermann Schennach
  • Publication number: 20130279980
    Abstract: A soil compacting device has an upper body and a lower body which is coupled to the upper body by a spring device and which has a soil contact element. Furthermore, a drive generates is provided for generating an operating motion of the soil contact element, and an energy store is provided for storing electrical energy. A cooling air flow, which is guided through a cooling air flow guide along the energy store, can be created by an air conveying device.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 24, 2013
    Applicant: WACKER NEUSON PRODUKTION GMBH & CO. KG
    Inventor: Michael Steffen
  • Publication number: 20130251452
    Abstract: A working device for ground compaction comprises an upper mass, a guide device coupled to the upper mass and intended to guide the working device, a lower mass which can move relative to the upper mass, which is movably coupled to the upper mass via a spring device, and which has a ground contact plate, and a vibration-generating device for producing a relative movement between the upper mass and the lower mass. Furthermore, a drive for driving the vibrating-generating device is provided, wherein the drive comprises an electric motor. The electric motor is supplied with electrical energy via an electrical energy store arranged on the guide device.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 26, 2013
    Applicant: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Michael Steffen
  • Patent number: 8534955
    Abstract: A tamper of a screed having an eccentric shaft including an eccentric section and an eccentric bushing rotatably mounted in a connecting rod driving a tamper bar. The stroke of the tamper bar is adjustable by a relative rotation between the eccentric shaft and the eccentric bushing, and a tappet and a preselection area with two tappet stop positions defining two different tamper bar strokes are provided between the eccentric shaft and the eccentric bushing, enabling adjustment of the tappet to each tappet stop position, by reversing the direction of rotation of the eccentric shaft to switch between the two strokes.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: September 17, 2013
    Assignee: Joseph Vögele AG
    Inventors: Martin Buschmann, Roman Munz, Ralf Weiser, Klaus Bertz
  • Patent number: 8523480
    Abstract: The present invention relates to a soil compaction device, in particular such as a tamper or a vibration plate device, having an internal combustion engine and a tank container for receiving fuel for the operation of said internal combustion engine. According to the present invention, there is at least one clamping device on the soil compaction device which has a mechanical effect on an elastically flexible section of a fuel line arranged between the tank container and the internal combustion engine in order to be able to disconnect the fuel flow, wherein the clamping device is mechanically coupled to a manually actuated gas actuation apparatus and/or start-stop apparatus for the internal combustion engine, or integrated therein, wherein at least one roll or roller is arranged on the extension which has an effect on the elastically flexible section of the fuel line in order to disconnect the fuel flow.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 3, 2013
    Assignee: BOMAG GmbH
    Inventor: Niels Laugwitz
  • Patent number: 8414221
    Abstract: Disclosed herein is a tamper device. The tamper device includes a housing, a drive, a tamper, and a wobble connection. The drive is connected the housing. The tamper is adapted to reciprocate relative to the housing and apply pressure to a surface. The wobble connection is between the drive and the tamper, wherein the wobble connection includes a wobble plate. A first end portion of the tamper is at a side of the wobble plate.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: April 9, 2013
    Assignee: Hubbell Incorporated
    Inventors: Thomas R. Faucher, John D. Lefavour, Mark A. Chiasson
  • Publication number: 20130058717
    Abstract: The invention relates to a soil compacting device having an exciter part (1), which has an unbalance exciter (2) for producing an intermittent exciter force and a contact surface (3) for transmitting a force component of the exciter force directed perpendicularly to the contact surface (3) to the soil surface (4) to be compacted as a pulsing compressive force. The device also has a vibration damper part (5), which is connected to the exciter part (1) by means of a spring-damper unit (15). The spring stiffness of the spring-damper unit (15), the damping of the spring damper unit (15), the spring pre-load of the spring-damper unit (15), the mass of the vibration damper part (5), the mass moment of inertia of the vibration damper part (5), the mass of the exciter part (1), and/or the mass moment of inertia of the exciter part (1) can be varied during operation.
    Type: Application
    Filed: April 16, 2010
    Publication date: March 7, 2013
    Applicant: Ammann Schweiz AG
    Inventors: Roland Anderegg, Martin Gerhard, Kuno Kaufmann, Dominik Anton Von Felten
  • Patent number: 8382397
    Abstract: The invention relates to a vibrator device for a vibratory compacting machine, said device comprising: a tubular body extending longitudinally and having a bottom end; at least one first hydraulic motor disposed in the tubular body and comprising a rotor and a stator; an eccentric member arranged inside the tubular body between the bottom end and the first hydraulic motor, said eccentric member being adapted to be rotated by the rotor of the first hydraulic motor so as to generate vibration. The invention is characterized in that the stator of the first hydraulic motor is constituted by the tubular body.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: February 26, 2013
    Assignee: Soletanche Freyssinet
    Inventors: Daniel Perpezat, Laurent Pivert, Philippe Chagnot
  • Patent number: 8371770
    Abstract: A tamper bar mechanism includes a drive shaft with an eccentric section on the shaft. A tamper drive member is driven by the eccentric section and drives a tamper bar between an upper position and a lower position to define a tamper stroke length. A stroke adjustment link is operatively connected to the tamper drive member and a stroke adjustment mechanism is operatively connected to the stroke adjustment link to adjust an angular orientation of the stroke adjustment link relative to the path of travel of the tamper bar and adjust a length of the tamper stroke length. A paving machine and a method of adjusting the tamper stroke length are also provided.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: February 12, 2013
    Assignee: Caterpillar Inc.
    Inventors: Tobin D. Rasmusson, Luke E. Graham, Jason W. Kopacz, Anthony Steinhagen
  • Publication number: 20130034388
    Abstract: The present invention relates to a soil compaction device, in particular such as a tamper or a vibration plate device, having an internal combustion engine and a tank container for receiving fuel for the operation of said internal combustion engine. According to the present invention, there is at least one clamping device on the soil compaction device which has a mechanical effect on an elastically flexible section of a fuel line arranged between the tank container and the internal combustion engine in order to be able to disconnect the fuel flow, wherein the clamping device is mechanically coupled to a manually actuated gas actuation apparatus and/or start-stop apparatus for the internal combustion engine, or integrated therein, wherein at least one roll or roller is arranged on the extension which has an effect on the elastically flexible section of the fuel line in order to disconnect the fuel flow.
    Type: Application
    Filed: January 25, 2011
    Publication date: February 7, 2013
    Applicant: BOMAG GMBH
    Inventor: Niels Laugwitz
  • Publication number: 20130004237
    Abstract: The invention relates to an apparatus for soil compaction, especially a vibration tamper and a vibrating plate, comprising a compaction device which is driven via an electric motor, a rechargeable storage unit for electrical power, and an especially vibration-damped guide device. The invention further relates to an apparatus and a method for compaction control, especially for electromotively driven compaction apparatuses.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: BOMAG GMBH
    Inventors: Albertus Krings, Timo Stenz, Dietmar Metz
  • Patent number: 8332105
    Abstract: A method and a system is described for controlling at least one compaction machine in which the oscillations propagating from the compaction machine in the ground are detected by means of a sensor at least at one relevant measuring location. The measured oscillation values as detected by the sensor are sent to a data-processing unit which then compares the same with a permissible oscillation limit value for the respective measuring location. Upon exceeding the limit value, at least one compaction parameter of the compaction machine is changed in such a way that the measured oscillation values as measured at the measuring location are set by a control loop circuit automatically to a value smaller than or equal to the oscillation limit value.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: December 11, 2012
    Assignee: BOMAG GmbH
    Inventor: Robert Laux
  • Patent number: 8317426
    Abstract: A tamper as a soil-compacting device having a combustion engine, a soil contact element, and a motion conversion device for converting a rotary movement of the combustion engine into an oscillating linear movement of the soil contact element. Furthermore, a clutch device for connecting and interrupting the force flow between the combustion engine and the motion conversion device is provided. In addition to the combustion engine, an electric motor with a rotor and a stator is provided, wherein the operator can switch between the combustion engine and the electric motor. The rotor can be arranged directly on a clutch bell of the clutch device.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: November 27, 2012
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Michael Steffen
  • Publication number: 20120253612
    Abstract: A mobile pothole patching vehicle includes a chassis and front and rear support wheels for the chassis. A cab is mounted on the chassis as is a paving material storage hopper. A paving material dispensing mechanism is mounted on the chassis and is in communication with the hopper. A discharge chute is in communication with the dispensing mechanism. A boom mechanism includes a proximal end mounted on the chassis. A first swivel mechanism rotates the boom mechanism in relation to the chassis. A tamper plate is mounted on a distal end of the boom mechanism. The machine can patch potholes through the actions of a single operator who remains in the cab during the patching or repair process, thus enhancing the safety of the patching operation.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Inventor: Terrence K. Byrne
  • Patent number: 8256987
    Abstract: An oscillation exciter, in particular for a vibration plate, has a rotating unbalanced mass (3) for producing a non-directional oscillation which is transmitted to a ground contact element (1). In order to transmit the oscillation to the ground contact plate (1), a transmission device (7, 8) is provided, which connects the unbalanced shaft (3) to the ground contact element (1) and by means of which the non-directional oscillation of the unbalanced shaft (3) can be converted to a directional oscillation for the ground contact plate (1). The transmission device (7, 8) is designed such that, with respect to an oscillation plane, it has different and variable stiffnesses in different directions within the oscillation plane.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: September 4, 2012
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Martin Awrath
  • Publication number: 20120087727
    Abstract: The present invention relates to a vibrating tamper for soil compaction, which has a superstructure having a drive motor and a substructure having a tamper plate driven by the drive motor, the tamper plate being fastened on a tamper foot associated with the substructure, and this tamper foot being mounted so it is linearly movable on the vibrating tamper using a guide element. It is provided that the tamper foot is implemented integrally with the guide element.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 12, 2012
    Applicant: BOMAG GMBH
    Inventor: Dirk Bonnemann
  • Publication number: 20120076584
    Abstract: An apparatus for soil compaction, such as a vibration tamper, comprises a substructure having a tamper foot and a bottom guide cylinder arranged thereon, and a superstructure having a housing, an upper guide cylinder arranged thereon and at least one drive unit which is in operative connection via a drive train with the tamper foot in the substructure in such a way that it can be moved relative to the superstructure along at least one compaction axis (Av) with at least one compaction amplitude (a), with at least one stop element being arranged between the superstructure and the substructure, which stop element will stop the movement of the substructure relative to the superstructure upon exceeding a maximum compaction amplitude (amax).
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: BOMAG GmbH
    Inventors: Dirk Bonnemann, Thomas Steeg
  • Publication number: 20120076583
    Abstract: A vibration tamper for compacting subsoil comprises a superstructure and a substructure, with the superstructure comprising a motor and an eccentric disk which is driven by the same. A connecting rod is eccentrically mounted on the eccentric disk, which connecting rod converts the rotational movement into a linear movement. The substructure comprises a tamper foot with a tamper plate which is driven by the linear movement of the connecting rod into a tamper movement along a tamper axis. As a result of the bent portion of the connecting rod, the tamper axis is disposed in a plane which is disposed parallel to a plane opened up by the bearing of the connecting rod on the eccentric disk against a direction opposite of the advancing direction of the vibration tamper.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 29, 2012
    Applicant: BOMAG GMBH
    Inventor: Dirk Bonnemann
  • Patent number: 8123432
    Abstract: At the end of a guide handle of a vibration plate service as soil-compactor an actuating element is mounted which can be moved in relation to the guide handle. Each position of the actuating element is detected by a sensor device which transmits a corresponding signal to a hydraulic steering unit. In this way, the phase angles of unbalance masses can be modified which in turn influences the direction of travel of the vibration plate.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: February 28, 2012
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventor: Michael Steffen
  • Publication number: 20110318103
    Abstract: The invention relates to a vibrator device for a vibratory compacting machine, said device comprising: a tubular body extending longitudinally and having a bottom end; at least one first hydraulic motor disposed in the tubular body and comprising a rotor and a stator; an eccentric member arranged inside the tubular body between the bottom end and the first hydraulic motor, said eccentric member being adapted to be rotated by the rotor of the first hydraulic motor so as to generate vibration. The invention is characterized in that the stator of the first hydraulic motor is constituted by the tubular body.
    Type: Application
    Filed: January 14, 2010
    Publication date: December 29, 2011
    Applicant: SOLETANCHE FREYSSINET
    Inventors: Daniel Perpezat, Laurent Pivert, Philippe Chagnot
  • Patent number: 8047742
    Abstract: A vibrating plate serving as a tamping device comprises an upper mass equipped with a drive and comprises at least two lower masses, which are coupled to the upper mass while being able to oscillate relative to the upper mass. Each of the lower masses comprises a soil contacting plate and at least one oscillator assigned to this soil contacting plate. The oscillators can be controlled differently so that, in addition to an advancing and compacting action, a turning moment can be executed about a vertical axis (Z).
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: November 1, 2011
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventors: Georg Sick, Oliver Kolmar, Otto W. Stenzel, Andreas Bartl
  • Patent number: 8046105
    Abstract: A vibrating plate system comprises at least two vibrating plates are mechanically coupled to one another via a coupling device and a controlling transmitter for outputting control data to the vibrating plates. Each of the vibrating plates comprises a receiving device for receiving the control data, a drive mechanism for propelling the vibration plate forwardly and rearwardly, and a position determining device for determining the position of the relevant vibrating plate within the group. A rule memory is also provided in which control rules are stored. One control rule defines a correlation between a control measure for controlling the traveling mechanism according to the position of the vibrating plate and an item of control information given by the control data. In each vibrating plate, a single control device selects a suitable control rule according to the position of the vibrating plate and to the control measure.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: October 25, 2011
    Assignee: Wacker Neuson Produktion GmbH & Co. KG
    Inventors: Michael Steffen, Oliver Kolmar, Thorsten von Richthofen, Thomas Lachenmaier
  • Patent number: 8021079
    Abstract: A compactor device for attaching to a shaft of a hydraulic hammer or the like comprising a base, an outer receiving tube and inner receiving component attached to the top of the base, wherein the inner receiving component is for clamping onto the shaft of the hydraulic hammer. The compactor device is for compacting all materials, such as dirt, sand, and/or aggregate material.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: September 20, 2011
    Inventor: Alan S. Rackham
  • Patent number: 7988383
    Abstract: A transport attachment of a vibration plate and a vibration plate having transport wheels is provided. The transport wheels are pivotable between a transport position and an operating position, and are located further outward in the viewpoint of the vibration plate in the width direction in the transport position than in the state of the operating position.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: August 2, 2011
    Assignee: BOMAG GmbH
    Inventor: Kurt Hickmann
  • Publication number: 20110135389
    Abstract: Disclosed herein is a tamper device. The tamper device includes a housing, a drive, a tamper, and a wobble connection. The drive is connected the housing. The tamper is adapted to reciprocate relative to the housing and apply pressure to a surface. The wobble connection is between the drive and the tamper, wherein the wobble connection includes a wobble plate. A first end portion of the tamper is at a side of the wobble plate.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventors: Thomas R. Faucher, John D. Lefavour, Mark A. Chiasson
  • Publication number: 20110123270
    Abstract: In a tamper of a screed having an eccentric shaft comprising an eccentric section and an eccentric bushing arranged thereon which is rotatably mounted in a connecting rod driving a tamper bar, the stroke of the tamper bar is adjustable by a relative rotation between the eccentric shaft and the eccentric bushing, and a tappet and a preselection area with two tappet stop positions defining two different tamper bar strokes are functionally provided between the eccentric shaft and the eccentric bushing, so that the tappet can be adjusted without tools to each tappet stop position by a reversal of the direction of rotation of the eccentric shaft to switch between the two strokes.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 26, 2011
    Applicant: JOSEPH VOGELE AG
    Inventors: Martin Buschmann, Roman Munz, Ralf Weiser, Klaus Bertz
  • Publication number: 20110116867
    Abstract: A vibratory percussion rammer includes a gear box, a percussion delivery unit extending downwardly from the gear box, and one or more slide bearings disposed in the percussion delivery unit between adjacent surfaces of reciprocating metal components. The slide bearings are made from a sheet of plastic material that is curved into the shape of a tube having a C-shape in cross section and define an open seam extending the entire length of the slide bearing. Slide bearings according to this design can be disposed in the percussion delivery unit to eliminate some or all of the metal-on-metal contact between reciprocating components, including between the ram and shaft assembly and spring box and the guide cylinder, the spring separator and the spring box, and the shaft of a ram and shaft assembly and an upper end of the spring box. The seam width of any slide bearing is wider than the anticipated width-wise thermal expansion of the slide bearing during normal operation.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Applicant: M-B-W Inc.
    Inventor: Anthony Grinwald
  • Patent number: 7901157
    Abstract: A vibratory plate compactor with aggregate feed system includes a frame, a soil compacting plate and a drive mechanism, such as a hydraulic motor, is mounted on the frame and has a rotatable drive shaft which uses a V-belt to drive a vibratory actuator on the tamping plate. The frame also carries a hopper that uses a screw conveyor to force the stored aggregate into a vertical conduit. A tamping piston forces aggregate out of the vertical conduit, through apertures in the compactor plate and compacts the loose soil with a multitude of blows, the vibratory plate is then actuated to further compact the aggregate. The process is repeated until the cavity is filled and compacted to the required density. The vibratory plate compactor with aggregate feed system is ideally suited to filling and compacting aggregate in used automobile tires that are used in the formation of a tire wall.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: March 8, 2011
    Inventor: Dean Jeffrey
  • Patent number: 7896575
    Abstract: A ramming device for compacting soil includes an upper mass and a lower mass. The lower mass is driven linearly back and forth with respect to the upper mass to compact material therebelow. An engine drives the lower mass and is supported by the upper mass. A muffler is fluidly connected to the engine and is contoured such that a majority of the muffler is positioned inboard of a footprint of a side of the ramming device. Preferably, the muffler has a shape that substantially matches a shape of the upper mass adjacent to the muffler thereby further reducing the distance that the muffler extends beyond a footprint of a sidewall of the device.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 1, 2011
    Assignee: Wacker Neuson Corporation
    Inventors: David J. Schulenberg, Todd J. Lutz, Jeffrey W. Dujmovic, David J. Waldenberger, Gary D. Goplen, Dawn Auby
  • Publication number: 20110002737
    Abstract: The invention relates to a device for compacting road paving materials, comprising a screed board which is fastened on a road finisher and extends at a right angle to the direction of travel of the road finisher and a tamper that is mounted in front and/or behind the screed board. Said tamper has a tamper strip that can be driven to perform a striking upward and downward movement and the interior of which is equipped with an electrical heating unit in the form of a rod-shaped heating element that can be clamped into a recess of the tamper strip. The device according to the invention is characterized by a spring accumulator receiving the heating element in the direction of the striking upward and downward movement for clamping the heating element.
    Type: Application
    Filed: January 6, 2009
    Publication date: January 6, 2011
    Applicant: ABG Allgemeine Baumaschinen-Gesellschaft mbH
    Inventors: Anton Mahler, Marc Niggemann, Oliver Lachmann
  • Publication number: 20110002738
    Abstract: The invention relates to a device for compacting road paving materials, comprising a screed board which is fastened on a road finisher and extends at a right angle to the direction of travel of the road finisher and a tamper that is mounted in front and/or behind the screed board. Said tamper has a tamper strip (9) that can be driven to perform a striking upward and downward movement and the interior of which is equipped with an electrical heating unit in the form of a rod-shaped heating element (12) that can be clamped into a recess of the tamper strip. The device according to the invention is characterized in that the heating element is a tubular heating unit the coil (20) of which is folded at least once on a free end of the tubular heating unit, thereby forming two adjacent rods (33, 34) that are connected to a power supply unit in a common terminal block (14).
    Type: Application
    Filed: January 6, 2009
    Publication date: January 6, 2011
    Inventors: Anton Mahler, Marc Niggemann, Oliver Lachmann
  • Publication number: 20100284743
    Abstract: A tamping device comprises a drive motor which, via a spring mechanism, drives a soil contact element for compacting the soil. A detection device records the speed of rotation of the drive motor. An evaluation device evaluates the dynamic response of the speed of rotation and recognizes an aperiodic response. A control device prompts a change in the speed of rotation of the motor if an aperiodic response has been recognized.
    Type: Application
    Filed: October 9, 2008
    Publication date: November 11, 2010
    Applicant: Wacker Neuson SE
    Inventor: Michael Steffen
  • Publication number: 20100278590
    Abstract: A vibration plate has an upper mass having a drive and a lower mass which is mounted so it is elastically moveable relative to the upper mass. The lower mass has a vibration generator and a ground contact plate. The drive is coupled by a belt drive to the vibration generator. The belt drive has a drive disk which is provided on the drive, an output disk which is provided on the vibration generator, and a belt which circulates between the drive disk and the output disk. To this end, at least two further deflection rollers are provided for guiding the belt.
    Type: Application
    Filed: December 23, 2008
    Publication date: November 4, 2010
    Applicant: Wacker Neuson SE
    Inventor: Otto W. Stenzel
  • Publication number: 20100189501
    Abstract: A soil compactor/driver that includes a housing and a substantially sealed chamber defined within the housing. A weight assembly that is carried by the housing and includes an eccentrically mounted weight. The weight is supported for rotation within the chamber by a pair of sealed, spherical bearings that do not require maintenance. First and second end plates are adapted to receive at least a portion of an associated sealed bearing and the housing defines first and second openings associated with the first and second end plates. The end plates, bearings and weight are arranged to be preassembled outside of the housing to form the weight assembly which is then installable as a unit into the housing which substantially reduces manufacturing and maintenance costs.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 29, 2010
    Inventors: Michael L. Grabnic, Michael T. Popik
  • Patent number: 7762197
    Abstract: A vibrating device having a flywheel rotatably disposed within a housing assembly. The housing assembly includes one or more openings therethrough structured to allow an effective amount of air to pass between the housing assembly enclosed space and the atmosphere. By exchanging an effective amount of air between the enclosed space and the atmosphere, the temperature within the housing assembly remains below the breakdown point of a lubricant used to reduce friction created when the flywheel is in use.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 27, 2010
    Assignee: Harsco Technologies LLC
    Inventors: Michael Allen VanBergen, Jerome Papes
  • Publication number: 20100166499
    Abstract: A vibrating plate comprises an upper mass with a drive, a lower mass with a soil contact plate (12), and a vibration generator device, which belongs to the lower mass and which acts upon the soil contact plate (12). The vibration generator device comprises at least two individual exciters (13) each having an unbalanced shaft (2). The individual exciters (13) can be individually controlled with regard to the rotational speed and/or phase position of the respectively assigned unbalanced shaft (2). A mechanical coupling of the unbalanced shafts (2) is thus unnecessary. The unbalanced shaft (2) of an individual exciter (3) can be rotationally driven by a hydraulic motor (4). The position of the unbalanced shaft (2) is determined in at least one position by a position indicator (7).
    Type: Application
    Filed: June 23, 2006
    Publication date: July 1, 2010
    Applicant: WACKER CONSTRUCTION EQUIPMENT AG
    Inventor: Otto W. Stenzel
  • Patent number: 7740416
    Abstract: A hand or mechanically powered tamper tool which has a removeable, replaceable, tool head assembly. The tool head assembly is a separable component from the upper section of the tamper tool which consists of the mounting plate and its attached tamper handle. The tool head assembly has a rubber or similarly resilient material pad bonded to the underside of a backing plate. Connection elements, such as bolts, are permanently secured between the pad and the backing plate. The bolts extend through and are upstanding from the backing plate. The bolts are configured to then extend through openings in the tamper mounting plate, where nuts are used to secure the tool head assembly to the mounting plate. The tool head assembly is thus removeable from the mounting plate and its handle or supporting element and allows for the simple and ready replacement of a used and worn tool head assembly with a new tool head assembly.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 22, 2010
    Inventor: Peter W. Lesche
  • Publication number: 20100074685
    Abstract: An oscillation exciter, in particular for a vibration plate, has a rotating unbalanced mass (3) for producing a non-directional oscillation which is transmitted to a ground contact element (1). In order to transmit the oscillation to the ground contact plate (1), a transmission device (7, 8) is provided, which connects the unbalanced shaft (3) to the ground contact element (1) and by means of which the non-directional oscillation of the unbalanced shaft (3) can be converted to a directional oscillation for the ground contact plate (1). The transmission device (7, 8) is designed such that, with respect to an oscillation plane, it has different and variable stiffnesses in different directions within the oscillation plane.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 25, 2010
    Inventor: Martin Awrath
  • Patent number: 7682102
    Abstract: The asphalt tamper includes a tamper plate connected to a reciprocating rod that oscillates inside of a protective sleeve, wherein the reciprocating rod abuts a cam that rotates about the output of a motor. The reciprocating rod has a shoulder that interacts with a spring that applies a biasing force ushering the reciprocating rod back and forth upon interaction with the rotating cam.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: March 23, 2010
    Inventors: Gary Burke, Dale Burke
  • Publication number: 20090317188
    Abstract: A vibrator arrangement for producing material columns in the ground comprises an elongate vibrating body with an outer surface having a girth and at least one projection extending at least partially around the girth of the vibrating body. A method of producing a material column in the ground may use such a vibrator arrangement.
    Type: Application
    Filed: February 1, 2007
    Publication date: December 24, 2009
    Inventors: Wilhelm Degen, Alexander Degen
  • Publication number: 20090304446
    Abstract: A tamper assembly comprising: a motor being coupled to a transfer shaft, rotating the transfer shaft when the motor is actuated. At least two eccentric weights are coupled to the transfer shaft and a tamping foot is rotatably coupled to the transfer shaft. The tamping foot vibrates when said motor is actuated to tamp the asphalt or the stone when the tamping foot is drawn across the asphalt or the stone behind an asphalt paver. Two attachment bars facilitate removable and adjustable attachment of the tamper assembly to an asphalt paver.
    Type: Application
    Filed: May 22, 2009
    Publication date: December 10, 2009
    Inventor: Kevin Pikuet