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| Number | Title | Issue Date |
| 8414221 | Tamper device 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 connec... | 04/09/2013 |
| 7527452 | Tamping tine for a tamping machine Hardened metal inserts are inserted in a tine plate of a tamping tine for tamping ballast of a railroad track. The cylindrical inserts have a boundary surface bordering on a side surface of the tine plate, thus forming a part thereof. Owing to that configuration, th... | 05/05/2009 |
| 7427176 | Vibratory plate A vibratory plate includes a sprinkler device (3) for wetting the underside of a base plate (2) of the vibratory plate (1). The vibratory plate also includes a water tank (4) and the sprinkler device (3) has an outlet (8) fo... | 09/23/2008 |
| 7413028 | Ramming device to be assigned to a rock breaker The ramming device comprises a ramming element to be assigned to the end of a rock breaker. The inventive device receives the shocks generated by the rock breaker and transmits them to fragments to be compacted. The ramming device also has a frame comprising: positi... | 08/19/2008 |
| 7387466 | Concrete pattern tamper having elastomeric body and neck A tamper for imparting patterns through a die to a pliable surface, most commonly a newly poured concrete structure such as a walkway, is disclosed. In the tamper of this invention its base, including the integrated handle-receiving neck, is formed substantial entir... | 06/17/2008 |
| 7354221 | Self-propelled plate compactor having linear excitation The present disclosure is directed to a vibratory plate compactor, having at least one contact plate configured to be vibrated. The compactor may also include one or more excitation devices configured to vibrate the at least one contact plate. The compactor may furt... | 04/08/2008 |
| 7325496 | Tamping tool The present invention comprises a tamping tool comprising a shank and a blade, with the blade having various arrangements of wear-resistant material affixed to the face of the blade by means of brazing, soldering, gluing or other method. Additionally, some arrangeme... | 02/05/2008 |
| 7316524 | Tamping device A tamping device for tamping of asphalt or stone includes a motor being coupled to a drive shaft. The motor rotates the drive shaft when the motor is actuated. A sleeve is coupled to the motor. The drive shaft extends through the sleeve. A transmission housing is co... | 01/08/2008 |
| 7303356 | Soil compacting device comprising an undercarriage The invention relates to a soil compacting device, especially a vibrating plate, which comprises an undercarriage mounted on a lower body, said undercarriage having an undercarriage axle that is stationary with respect to the device. By suitably positioning the unde... | 12/04/2007 |
| 7302871 | Oscillation generating device The invention relates to an oscillation generating device for use in a soil compacter with a tipping moment compensation device. A second unbalance shaft pair with oppositely rotating unbalance shafts is arranged adjacent to a first unbalance shaft pair as a tipping... | 12/04/2007 |
| 7261491 | Edger assembly for a paving vehicle An edger assembly is for a paving vehicle screed for forming a paving material mat upon a base surface. The edger assembly includes a support connectable with the screed and an edger member having a contact surface contactable with the base surface. An actuator has ... | 08/28/2007 |
| 7201536 | Road patching equipment An improved asphalt patching machine which is mountable to a motor vehicle having a supply of asphalt patch material thereon. The patching machine comprises a dispensing and finishing assembly fed by a multi-part, articulatable conveyor which feeds asphalt patching ... | 04/10/2007 |
| 7165469 | Shift rod piston seal arrangement for a vibratory plate compactor An easily accessible phase adjustment mechanism for a vibratory plate compactor includes an improved seal arrangement to protect against leakage of internal lubricating oil into the hydraulic cylinder providing fluid pressure to the adjustment mechanism. An easily d... | 01/23/2007 |
| 7144195 | Asphalt compaction device An asphalt compaction device including a primary compaction plate and a secondary compaction plate for concentrating force, resulting in an increased compaction rate. The secondary compaction plate may be either rotated or extended into its operative position. The a... | 12/05/2006 |
| 7117758 | Vibration generator for a soil compacting device The invention relates to vibration generator for a soil compacting device referred to as a towed vibrating device. The vibration generator has two parallels arranged unbalanced shafts that each support a fixed and a freely rotating unbalanced mass. An unbalance adju... | 10/10/2006 |
| 7073374 | Soil compaction measurement on moving platform An apparatus and method are provided for the in-situ measurement of the stiffness of a surface. The apparatus includes a platform, which is movable relative to the surface. A stiffness measurement device is supported by the platform in a stationary position relative... | 07/11/2006 |
| 7021867 | Method and machine for dynamic ground compaction At least one cable is attached to a load lying on the ground via a releasable connection mechanism. A traction force is applied to the cable to hoist the load up to a prescribed height. That traction force is then eliminated or reduced to initiate a downward movemen... | 04/04/2006 |
| 7017679 | Device for the continuous adjustment of unbalance of steerable vibration plates The invention relates to steerable vibration plates that are set vibrating by rotating unbalanced masses. By twisting the unbalanced masses relative to one another the resulting forces and their direction of action can be changed, thereby influencing the travel spee... | 03/28/2006 |
| 7013812 | Tamping tool The present invention comprises a tamping tool comprising a shank and a blade, with the blade having various arrangements of wear-resistant material affixed to the face of the blade by means of brazing, soldering, gluing or other method. Additionally, some arrangeme... | 03/21/2006 |
| 6997648 | Remote control device for automotive working devices In order to control automatic working devices, especially soil compacting devices, a remote control device is provided which comprises a transmitter unit which can be actuated by a user and which is used to transmit control signals in the form of electromagnetic rad... | 02/14/2006 |
| 6925940 | Tamping tine for a tamping unit A tamping tine for tamping ballast underneath a railroad track has a tine shank and a tine pad attached to the shank. For increasing its abrasion resistance, the tine pad is formed with a pad casing of wear-resistant material. The pad casing is formed with an openin... | 08/09/2005 |
| 6912903 | Soil compaction measurement An apparatus and method are provided for the in-situ measurement of the stiffness of a layer of soil or other surface of interest. The apparatus includes a contact foot for engaging the surface and a drive transducer coupled to the contact foot for applying a vibrat... | 07/05/2005 |
| 6877931 | Tamping tine for a tamping machine A tamping tine has a flat inclined tine surface that encloses an acute angle with a front surface of a tine plate at the lower end of a shank. The inclined tine surface is delimited, with regard to a longitudinal direction of the tamping tine, by a bottom edge of th... | 04/12/2005 |
| 6854923 | Working machine with reduced upper mass vibrations A tamping machine for compacting soil has a crank mechanism for producing a directed vibration. The crank mechanism is coupled to a spring assembly. The parts of the crank mechanism which move back and forth linearly are made from a material with a density less than... | 02/15/2005 |
| 6848858 | Working machine with reduced upper mass vibrations According to the invention, a hammer or a ramming machine for compacting soil has a crank mechanism for producing a directed vibration. The crank mechanism is coupled to a spring assembly. The parts of the crank mechanism which move back and forth linearly are made ... | 02/01/2005 |
| 6846128 | Mobile soil compacting device whose direction of travel is stabilized The invention relates to a soil compacting device comprising a motion detection device for detecting an actual value for the travelling motion of the soil compacting device. Inside a travel control device, the actual value is compared with a set value that is predet... | 01/25/2005 |
| 6758632 | Lubrication system for a tool with a combustion engine A tool consists of a combination engine in the form of a two-cycle engine, and a motion conversion device which is connected to said combustion engine and which is located in a housing. The housing is filled with oil for lubricating the motion conversion device. A c... | 07/06/2004 |
| 6749365 | Vibration isolation for a percussion rammer A soil compacting percussion rammer includes an operator handle assembly that is isolated from the main machine frame by a shock absorbing mount oriented to absorb the horizontal components of operating movement of the rammer. In a preferred embodiment, the shock ab... | 06/15/2004 |
| 6742960 | Vibratory compactor and method of using same Vehicular and/or walk behind vibratory compactors utilize a vibrated roller or plate to impose compaction forces on a densifiable strata, such as ground soil, a roadway base material or pavement. Utilizing a rotating energy source, such as a engine or hydraulic moto... | 06/01/2004 |
| 6722815 | Soil compacting device comprising a vibration generator, and method for controlling the vibration generator The invention relates to a soil compacting device comprising a vibration generator that acts upon a soil contact plate. A controlling means of the vibration generator comprises an amplitude-controlling unit and a frequency-controlling unit. The amplitude-controlling... | 04/20/2004 |
| 6698531 | Vibration tamper A hand-guided vibration tamper, which is driven by a motor laterally cantilevered on the tamper head, is provided with guard plates covering its underside and lateral sides. The underside and lateral guard plates are connected to a housing for the motor, ... | 03/02/2004 |
| 6659685 | Arrangement for cooling a hydraulic fluid in a hydraulic-powered vibrating compactor The invention is directed to an arrangement for cooling the hydraulic fluid in a hydraulic-powered vibrating compactor. The arrangement includes a hydraulic pump (6) of the compactor. The hydraulic pump (6) is provided with a through shaft having a fan wh... | 12/09/2003 |
| 6619125 | Method and device for determining the degree of compaction during ground compaction A method and a device are provided for determining the degree of compaction during ground compaction with a roller or a vibrating plate compactor comprising a top section and a vibrating plate. The method involves determination of one or more amplitude va... | 09/16/2003 |
| 6588977 | Compactor machine having vibration damping means A compactor machine adapted to be controlled by a pedestrian operator. The compactor machine includes a base plate adapted to engage a material to be compacted and an operative unit mounted on the base plate to cause the base plate to vibrate when in use.... | 07/08/2003 |
| 6584866 | Working tool, in particular rammer for soil compaction A working tool, in particular a soil rammer or a hammer, has two masses that may be linearly moved back and forth with respect to one another, namely a top mass which comprises a driving motor and a ramming or striking working mass which can be moved by t... | 07/01/2003 |
| 6582155 | Soil packing device with a vibration isolating mounting for a starter battery A soil compaction device has a receptacle in which a cage can be placed to hold a battery. At the external side of the cage there are spring-damper elements provided that keep the excessively strong acceleration loads away from the battery. The cage and t... | 06/24/2003 |
| 6558073 | Portable, oscillating grade determinant apparatus incorporating laser signal receiver A portable, oscillating grade determinant apparatus incorporating laser signal receiver is provided for determining proper cement elevation or slope. The apparatus has an electric motor, powered by a rechargeable battery, and actuated by a depressible swi... | 05/06/2003 |
| 6551022 | Compactor machine having vibration damping means A compactor machine of the kind controlled by a pedestrian operator. The machine includes a base plate, an operative unit mounted on the base plate, a support plate, and a main frame. The operative unit causes the base plate to vibrate during use of the m... | 04/22/2003 |
| 6551018 | Apparatus for tamping paving material An apparatus that tamps paving material and distributes the paving material evenly across a screed plate before the paving material is leveled by the screed plate. The apparatus includes a tamper bar for compacting material, a drive connected to the tampe... | 04/22/2003 |
| 6467245 | Universal vibratory roller unit A vibratory roller unit for replacement of a reel cutting unit in a multiple deck lawn mower for conversion of the mower into a greensroller. The vibratory roller unit has a frame, vibratory roller and a power train. The frame, vibratory roller and power ... | 10/22/2002 |
