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| Number | Title | Issue Date |
| 8042290 | Trencher with auto-plunge and boom depth control A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the ... | 10/25/2011 |
| 7950170 | Skewed roller on an excavator In one aspect of the invention, a trenching machine has at least one roller assembly comprising a body rotationally supported by an axle exteriorly mounted to a trenching chain or wheel. At least a portion of the body comprises a substantially conical shape. ... | 05/31/2011 |
| 7762013 | Trencher with auto-plunge and boom depth control A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the ... | 07/27/2010 |
| 7681338 | Rolling assembly and pick assembly mounted on a trencher In one aspect of the present invention, a roller assembly on an excavator for degrading natural and man-made formations has a plurality of pointed inserts disposed along its outer diameter. The inserts have a tip adapted to impact the formation and at least one of t... | 03/23/2010 |
| 7325338 | Engulfment rescue device and method A device and method is provided for rescuing a person trapped in engulfing material at an engulfment site. A reduction tool is used to loosen the engulfing material in order to free or facilitate freeing a buried or partially buried victim. The loosened engulfing ma... | 02/05/2008 |
| 7320380 | Swiveling utility machine having swivel deck A swiveling utility machine includes a swivel deck, an engine disposed at a rear portion of the swivel deck, a radiator disposed adjacent the engine, a driver's seat, a right implement controller disposed on the right side of the driver's seat and a left implement c... | 01/22/2008 |
| 7290360 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a first end and a second end. The first end of the ... | 11/06/2007 |
| 7258393 | Cab support A working machine includes a frame, a cab arranged on the frame, and a lateral support arranged between the frame and the cab for taking up load from the cab to the frame when lateral displacement of the cab takes place in a direction toward the side on which the la... | 08/21/2007 |
| 7246846 | Cab for construction machine A cab capable of easily securing rollover protection strength at low manufacturing cost is offered. Four pillars are mounted in the front and rear, and left and right of the cab. Two of them are mounted respectively in a first position at the outer side portion wher... | 07/24/2007 |
| 7234252 | Method and apparatus for beneficiating soils during vacuum excavation An apparatus for soil excavation having a vacuum hose, a vacuum holding tank and at least one air lance and/or water jet, in which a soil beneficiating agent is introduced into the soil during one or more of the steps of the vacuum excavation process. ... | 06/26/2007 |
| 7222882 | Loader implement A loader implement includes a support mast that is provided with a mounting area for a front loader arrangement. The loader implement includes a roll-over protective assembly that is coupled to one of the other or both of the loader implement, or support mast. The p... | 05/29/2007 |
| 7219452 | Trench wheel apparatus and method of use A trench wheel has a relatively thicker wheel center and gradually tapering side walls that produce a thinner wheel as distance from the hub increases. The wheel center is preferably fabricated from stamped metal into a hat or thimble shape, and has a skirt or brim ... | 05/22/2007 |
| 7204047 | Compact excavator A compact excavator includes an upper rotating body mounted rotatably on a lower traveling body, an engine arranged on a rear section of the upper rotating body in a state where a drive shaft thereof is oriented in a horizontal direction, an hydraulic pump connected... | 04/17/2007 |
| 7188865 | Counterweight for hydraulic shovel A counterweight for a hydraulic shovel, which is applicable to a compact to large-sized hydraulic shovels, and is capable of realizing favorable engine maintainability and assurance of sufficient mass, is provided. For this purpose, supporting column portions (12... | 03/13/2007 |
| 7168191 | Service vehicle with a walk-through to the outside A hydraulic excavator is equipped with one or more downsizing scheme including at least one of: (i) a bubble removing device for removing bubbles in hydraulic fluid, (ii) a hydraulic tank including a main tank and a variable capacity tank arranged separately from ea... | 01/30/2007 |
| 7162816 | Work vehicle with tilt floor A work vehicle with a tilt floor, which is capable of improving the maintainability around an engine and the operability and comfortability of a driver's seat and its periphery, is provided. The work vehicle with a tilt floor includes a hinge mechanism which is prov... | 01/16/2007 |
| 7152348 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame (30) with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a sub-frame (112) with a first e... | 12/26/2006 |
| 7134518 | Construction machine In a construction machine comprising an engine, hydraulic device, and heat exchanger for cooling the engine and the hydraulic device, which are all disposed in an upper rotating body of the construction machine, there is formed a maintenance passage along which main... | 11/14/2006 |
| 7131686 | Operator protective structure installed on cabin of construction machine An operator protective structure equipped on a cabin of construction machine is capable of moving the cabin along with a front guard by directly installing the front guard on the cabin fixed to an upper frame to protect the operator from an object penetrating into t... | 11/07/2006 |
| 7108283 | Industrial truck with a rear weight and an internal combustion engine An industrial truck, in particular a fork lift truck, is provided with a rear weight and an internal combustion engine. The internal combustion engine is fastened to the rear weight. The internal combustion engine is advantageously mounted so that it can oscillate a... | 09/19/2006 |
| 7090433 | Underground cable laying apparatus Presented is an underground cable laying apparatus that leaves virtually no visible scar in the turf under which cable, wire, line, hose, etc. is laid. The apparatus utilizes a pair of angularly displaced turf slicing wheels to slice and separate the turf forming a ... | 08/15/2006 |
| 7083125 | Detachable tube assembly Detachable tube assemblies, such as those useful in remote spraying devices, are disclosed. Tube segments are interconnected using radial extensions interfit with alignable radial holes on tubes to be coupled together. An actuator rod is provided with flexible barbs... | 08/01/2006 |
| 7077632 | Blower having a blower tube incorporating a reduction device for reducing the clear flow cross section of said blower tube at idle operation A blower (1) has a housing (10) to which a blower pipe (2) may be removably connected. An internal combustion engine located within the housing (10) drives a blower wheel. The blower wheel, in turn, generates an air flow (11) withi... | 07/18/2006 |
| 7047676 | Rotational and positionable arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus A novel rotational and positionable robotic arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus, wherein the interchange is effected underwater by rotation of a common deploying arm and remote-c... | 05/23/2006 |
| 7036251 | Counterweight mounting structure for construction machine A counterweight mounting structure for construction machine to which a counterweight is connected through a gap to an exterior constituting an upper rotating body is constituted such that a recessed groove is provided on an end on a connection side of the counterwei... | 05/02/2006 |
| 7003386 | Device and method for determining the position of a working part The invention relates to a device and to a method for determining the position for a working part of a tool on a working machine with a position-determining apparatus (2, 4, 5, 6; 2, 4a, 4b, 5, 6′; 31, 33, 49, 50, 51, 1′,53). At least one de... | 02/21/2006 |
| 6990757 | Wheeled work vehicle A wheeled work vehicle includes a traveling body including front and rear wheels, a traveling drive unit having an engine and a power transmission mechanism, a fuel tank, a work oil tank, and a vehicle frame mounting the front and rear wheels, the traveling drive un... | 01/31/2006 |
| 6971194 | Modular backhoe-excavator control station A modular excavator-backhoe control station is disclosed, the station having two control towers with joystick on their upper ends that are pivotally coupled adjacent a floor of an excavator or backhoe. They have one piece polymeric boots that cover them as well as s... | 12/06/2005 |
| 6938365 | Dampening apparatus A dampening means for a tool, the dampening means controlling pivoting of the tool with respect to a support means of a support structure. ... | 09/06/2005 |
| 6922925 | Construction machine A construction machine of the present invention is provided, in a compartment formed by a cover, with an engine, a centrifugal fan, and a heat exchanger for exchanging heat between cooling air blown by the centrifugal fan and a specified medium, wherein the centrifu... | 08/02/2005 |
| 6886277 | Small swivel type working vehicle A small swivel type working vehicle includes a running device (4), a swivel base (2) mounted on the running device (4) to be swivelable about a vertical swivel axis (X), a driver's seat (5) mounted on the swivel base (2), a control... | 05/03/2005 |
| 6772544 | Wheeled work vehicle A wheeled work vehicle includes a lower structure (4) supported on the ground by front wheels (2) and rear wheels (3), a swivel base (6) mounted on the lower structure to be swivellable about a swivel shaft disposed between the front whee... | 08/10/2004 |
| 6718660 | Motorized road-going vehicle for making trenches in the ground A motorized road-going vehicle for making trenches may include on its chassis a device for digging a trench using a trenching wheel and a device for sucking and collecting the spoil produced while the trench is being dug. The trenching wheel is mounted so that it ca... | 04/13/2004 |
| 6684537 | Excavator with a piping structure for absorbing variations in hose length An excavator such as a backhoe has a group of hoses variable in length when a boom moves up and down. To avoid the group of hoses bulging to obstruct view when the boom is raised to an uppermost position, the group of hoses has a length absorbing portion ... | 02/03/2004 |
| 6658767 | Trenching method and apparatus Trenching apparatus comprises a cutting device, preferably an endless chain cutter, mounted on a prime mover for positioning the cutting device in a trench with the prime mover movable on the ground surface above the level of the trench. Where the cutting... | 12/09/2003 |
| 6618966 | Fluid lance apparatus The present invention is a lance for removing dirt or other substances from an underground hole, by the use of air and water under high pressure. The water is used as an abrading material or lance to loosen dirt in a hole or to pick or chip off substances... | 09/16/2003 |
| 6601324 | Construction machine A construction machine having an engine arranged along a counter weight, wherein the intake air pipe of the engine is passed between the counter weight and the engine without the need of installing the counter weight spaced from the engine, so that the co... | 08/05/2003 |
| 6467201 | Trench-cutting machine with cutting head lock mechanism A self-propelled trench-cutting machine includes a chassis and a drive assembly mounted to the chassis for driving the machine along a surface to be cut. The machine includes a boom and a rock cutting wheel that is mounted on the boom for rotation about a... | 10/22/2002 |
| 6256566 | Lift mechanism controller and control method for industrial vehicles A lift vehicle and a method for initializing a controller for controlling a lifting mechanism of lift vehicle. The controller controls the maximum forward tilt angle of a mast by controlling a solenoid of a hydraulic circuit. The controller employs a stor... | 07/03/2001 |
| 6158152 | Pneumatic excavator A portable excavator having a tube to point a supersonic gas stream at a buried object. The excavator includes a movable member disposed within the conduit to pulse gas passing through the conduit and a supersonic gas nozzle at the exit of the conduit. Co... | 12/12/2000 |
