Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
04/2002
04/05/2002CA2358265A1 Boom suspension assembly
04/04/2002WO2002027107A1 Vertical lift type arm device
04/04/2002US20020038547 Neutral override for servo controlled hydrostatic units
04/04/2002DE10141968A1 Machine for cleaning garden pools has suction pump with aspiration hose and filter
04/04/2002DE10034195C1 Dredger pump has welded sheet metal pump wheel provided with 2 discs having axially projecting blades
04/03/2002EP1193351A1 Quick coupler device of working machine
04/03/2002CN1082117C 3关节式挖掘机的操作控制装置 Operation control unit 3-articulation type excavator
04/02/2002US6364561 Connector system for earth working machines
04/02/2002US6364119 Screening device and apparatus including same
04/02/2002US6364029 Machine for displacing grindstones
04/02/2002US6364028 Control and method for positioning a tool of a construction apparatus
04/02/2002US6363832 Method and apparatus for minimizing loader frame stress
04/02/2002US6363633 Excavating implement
04/02/2002US6363632 System for autonomous excavation and truck loading
04/02/2002US6363631 Lateral plough
04/02/2002CA2277254C Dog bone chain link
03/2002
03/28/2002WO2002025021A1 Attachment for earth moving blade
03/28/2002US20020037211 Work vehicle
03/28/2002DE10127898A1 Apparatus for multiple switching of several hydraulic cylinders with two, two position valves for selectively controlling cylinders
03/28/2002DE10041275A1 Milling system consists of mortisers, hydraulic motors, tool-holders and connecting brackets.
03/27/2002EP0993529B1 Box boom lift arm assembly
03/27/2002EP0993527B1 Box boom loader mechanism
03/27/2002CN2483430Y Suction dredger for river or lake
03/27/2002CN2483223Y Amphibious excavator
03/27/2002CN1342119A Gas generator for multi-stage air bag and air bag device
03/26/2002US6360827 Method and apparatus for a transportable box blade assembly
03/26/2002US6360459 Tiltable bucket assembly
03/26/2002US6360458 Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool
03/21/2002WO2002022969A1 Hydraulic circuit of excavating and slewing working vehicle
03/21/2002WO2002022966A1 Digging apparatus
03/21/2002WO2002021898A1 Lifting device for tractor for coupling and uncoupling a weight without manual control
03/21/2002US20020034422 Compact Apparatus for Covering Landfill
03/21/2002DE10044729A1 Excavator etc. has working arm with telescopic section for adaptation for excavation and piece good handling
03/21/2002DE10008400A1 Lever device for removing sludge, especially from drains or underwater, comprises lever and spade mounted on common axle
03/20/2002CN1341184A Hydraulic circuit of working machine
03/20/2002CN1081268C Hydraulic circuit apparatus for hydraulic excavators
03/19/2002US6357993 Construction equipment implement and method
03/19/2002US6357820 Work vehicle
03/19/2002US6357231 Hydraulic pump circuit for mini excavators
03/19/2002US6357150 Spade wheel apparatus for dredging equipment and associated method
03/19/2002US6357149 Method and apparatus for determining the depth of acceptable sediment removal from a body of water
03/14/2002WO2002020906A1 Method and system for mechanical and multiple fluidic coupling of a tool on a tool-bearing frame
03/14/2002WO2001046062A3 Loading and elevating material handler
03/14/2002US20020031394 Support frame for front attached implements of an operating machine and associated locating pins
03/13/2002EP1186720A1 Target excavation surface setting device for excavation machine, recording medium therefor and display unit
03/13/2002CN1080840C 液压控制系统 Hydraulic Control System
03/12/2002US6356829 Unified control of a work implement
03/12/2002US6354790 Attachment for earth-moving machines
03/12/2002US6354383 Attachment device for an implement
03/12/2002US6354026 Trench rig
03/07/2002WO2002018714A1 A locking device
03/07/2002WO2001052002A3 Hydraulic mechanism that can be used in buckets or shovels of excavators and the like
03/07/2002WO2001014643A9 Gravel sorter
03/07/2002US20020028126 Transversely driven projection and retraction assembly
03/07/2002US20020028125 Compact excavator attachment
03/07/2002DE10120195A1 Mounting for lifting arms on front lift vehicle has the lifting arms and lifting cylinders mounted on two vertical telescopic supports to vary the operating height
03/06/2002EP1183440A1 Stone head to be mounted on excavator arms
03/06/2002EP0820551B1 Vibration bucket arrangement
03/05/2002US6352393 Apparatus for transporting loosened particulate material using fluid under pressure
03/05/2002US6352126 Finish dirt scraper with improved damping device
03/05/2002US6351900 Shaft driven trencher
02/2002
02/28/2002US20020025228 Device and process for excavating and backfilling of soil
02/28/2002CA2353280A1 Wear indicator for a low friction bearing
02/27/2002EP1181785A1 Real-time surveying/earth moving system
02/27/2002CN1337502A Submerged dredging machine
02/27/2002CN1079870C Device and method for selecting oil pressure type building machinery operating mode
02/26/2002US6350079 Quick coupler assembly
02/26/2002US6349489 Structure for working unit for bucket excavators and method for manufacturing the same
02/26/2002US6349488 Technical field
02/26/2002CA2241199C Pivotable control lever mechanism
02/21/2002US20020021958 Piping structure of a working machine
02/21/2002US20020020448 Piping structure of a working machine
02/21/2002DE10119767A1 Boom arrangement for work machine has lifting cylinder mounted by end on side of lifting boom on intermediate lever, which is mounted on bearing on lifting boom
02/21/2002CA2348106A1 Tool carrier attachment for excavator
02/20/2002EP1180177A1 Suction excavator
02/20/2002CN1336495A Pipeline fitting structure of sliding arm, and its assembling method
02/20/2002CN1336471A Pipeline fitting device for sliding arm
02/20/2002CN1336469A Oil pressure type digging vehicle
02/20/2002CN1336468A Self-propelled catepillar carry-scraper
02/19/2002US6347670 Earth moving scraper
02/19/2002US6347464 Self-cleaning hydraulic clam bucket
02/14/2002WO2002012640A1 Device for opening narrow trenches and placing matching prefabricated elements
02/14/2002US20020017483 Mobile floating water treatment vessel
02/14/2002US20020017041 Apparatus
02/13/2002CN2476588Y Power transmission for small excavator
02/13/2002CN1335461A Apparatus for supplying lubricating grease to sliding arm
02/13/2002CN1335436A Welding structural element for boss and bracket and its welding method
02/07/2002WO2002010522A1 Thumb for a backhoe
02/07/2002US20020014517 Welded structure and welding method for boss and bracket
02/07/2002US20020014341 Method and apparatus for high speed grading
02/07/2002US20020014075 Control system of a hydraulic construction machine
02/07/2002US20020014027 Vehicle implenent adapter
02/07/2002US20020014026 Perfected loading machine with excavator supplement and chassis for the same
02/07/2002DE10119064A1 Wendevorrichtung Turning device
02/07/2002CA2400917A1 Thumb for a backhoe
02/06/2002EP1178004A1 Collecting, cleaning and calibrating unit for aluminium production electrolytic cells
02/06/2002EP1177839A1 Screening and blending bucket
02/06/2002EP1177350A1 Quick-coupling assembly
02/06/2002EP1040232B1 Regulating device for a moveable tool of a mobile machine
02/01/2002CA2354376A1 Material treatment method and apparatus