Patents
Sitemap › E02 - Hydraulic engineering; Foundations; Soil-shifting › E02F - Dredging; Soil-shifting › E02F 3 - Dredgers; Soil-shifting machines
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
11/1991
11/12/1991US5063694 Lightweight excavator dipper with replaceable top and bottom sections
11/12/1991CA1291872C Snow plow with hinge mounted back scraping blade
11/06/1991EP0455309A2 Scooping apparatus, vehicle and coupling plate therefore
11/05/1991US5062755 Articulated arm control
11/05/1991US5062264 Actuators
11/05/1991US5062228 Compactor and blade attachment for loader
11/05/1991US5062227 Device for breaking objects consisting of concrete or similar material
10/1991
10/31/1991WO1991017323A1 An indicating apparatus for a coupling
10/31/1991WO1991016506A1 Device for controlling height of blade of tracked vehicle
10/31/1991CA2076387A1 Indicating apparatus for a coupling
10/30/1991EP0453773A1 Wrecking device
10/29/1991US5060404 Auger type dredging head
10/29/1991US5060378 Demolition tool for a hydraulic excavator
10/29/1991CA1291451C Tree gripping device
10/26/1991CA2038393A1 Demolishing apparatus
10/22/1991US5058685 Dozer blade mounting apparatus
10/22/1991US5058294 Grade control system for continuous bucket excavators
10/17/1991DE4011316A1 Satellite geodesy system for excavator shovel wheel position
10/16/1991EP0451520A2 Method of determining the progress and the amount produced in open-pit mine using satellite geodesy
10/15/1991US5056959 Method and device for stripping from the concrete to which it adheres the header of a wall section cast in the ground
10/15/1991US5056845 Material manipulation apparatus
10/15/1991US5056244 Digging chain vibratory system
10/15/1991US5056242 Underground wall construction method and apparatus
10/15/1991CA1290780C Wear runner for excavating bucket
10/15/1991CA1290771C Apparatus for trencher
10/15/1991CA1290770C Trailing flusher dredger with trans channel flow enhancement
10/08/1991US5054990 Excavator arm
10/08/1991US5054958 Apparatus to prepare a road surface
10/08/1991CA1290287C Loader attachment
10/08/1991CA1290286C Locking and sliding system
10/07/1991WO1991015637A1 Wear strips
10/07/1991CA2069341A1 Wear strips
10/05/1991WO1991015635A1 Rock tongs for excavators
10/05/1991CA2055614A1 Rock tongs for excavators
10/04/1991CA2013775A1 Method opencast or underground mining and tunnelling without loading machines
10/03/1991WO1991014836A1 Rotary rockwheel assemblies
10/03/1991WO1991014835A1 Multipurpose attachment for excavators and the like
10/02/1991EP0449447A1 Trencher
10/02/1991EP0449103A1 Device for coupling a front end loader attachment to a tractor
10/02/1991EP0448849A1 Boom for an excavator or similar
10/02/1991EP0448788A1 Quick coupling device for an excavator
10/02/1991EP0448716A1 Teaching/playback method of working machine
10/01/1991US5052883 Implement positioning control system for construction machines
10/01/1991CA1289991C Enclosure panel for tractor
09/1991
09/26/1991DE4109783A1 Bucket for earth moving machine - is held in place by hydraulic cylinders which hold attachment hooks in engagement
09/25/1991EP0447422A1 A linkage system for loading machines.
09/25/1991EP0259472B1 Dredger
09/24/1991US5050685 Split bentleg plow
09/23/1991WO1991014834A1 Improvements in fluid-based excavating
09/19/1991WO1991014051A1 Bucket assembly with screening function
09/19/1991WO1991014050A1 Dumper
09/18/1991EP0447119A1 Earth-working machine
09/18/1991EP0446712A1 Excavation device with rotary cutter having a horizontal axis
09/18/1991EP0446353A1 Operation automating apparatus of hydraulic driving machine
09/17/1991US5049027 Hydro-electric tool lock
09/17/1991US5048668 Mounting and driving mechanism for a driving gear
09/17/1991US5048655 Electric declutch mechanism for direct drive crawler
09/17/1991US5048296 Anti-vibration apparatus in a hydraulic system for boom cylinder of working apparatus
09/17/1991US5048172 Method for converting a "backhoe" to a "crane" using a "true free fall" hydraulic winch system
09/17/1991CA1289038C Hydraulic control for earth working machines
09/11/1991EP0445933A1 Skid steer vehicle
09/11/1991CN1013890B Road-roller
09/10/1991US5046565 Blade and linkage mechanism with downdraft control
09/10/1991CA1288735C Dragline apparatus
09/10/1991CA1288704C Sludge removing apparatus
09/05/1991WO1991013215A1 Excavator with automatic parallel positioning of its manually controllable working tool and arm system by means of sensors
09/05/1991DE4009163A1 Bagger mit automatischer parallelhaltung seines von hand steuerbaren arbeitswerkzeuges und armsystem durch sensoren Excavator with automatic parallel attitude of his hand-arm system and tool be controllable labor by sensors
09/05/1991DE4005617A1 Befestigung der schaufeln und ggf. auch der vorschneider an schneidraedern Attaching the blades and possibly cutting wheels and the pruner to
09/03/1991US5044569 Rock and coral demolition tool
09/03/1991US5044446 Constant pressure regulation of grader blades
08/1991
08/28/1991EP0443830A1 Loader vehicle
08/28/1991EP0443829A1 Skid steer vehicle
08/28/1991EP0443828A1 Skid steer vehicle
08/28/1991EP0443026A1 Blade controller of bulldozer
08/27/1991US5042178 Apparatus and process for solid dredge material disposal
08/23/1991WO1991013219A1 Fastening of buckets and possibly also the skim coulters on cutting wheels
08/23/1991CA2073675A1 Fastening of buckets and possibly also the skim cutters on cutting wheels
08/22/1991CA2036561A1 Skid steer vehicle
08/22/1991CA2036552A1 Skid steer vehicle
08/22/1991CA2036551A1 Skid steer vehicle
08/22/1991CA2027365A1 Hydro-electric tool lock
08/21/1991EP0442589A1 Method and device for digging stable trenches into the ground and/or unconsolidated soil
08/21/1991EP0442449A2 Replaceable wear element
08/20/1991US5040900 Sludge stabilizing method and apparatus
08/20/1991US5040615 Quick attaching power-take-off conversion unit
08/20/1991US5040428 Swing reduction gear assembly
08/20/1991US5040314 Stress relief for walking dragline frames
08/14/1991EP0440895A1 Earth moving machine, in particular a bucket excavator
08/14/1991EP0440669A1 Rotator unit
08/14/1991DE4102370A1 Excavator with bucket secured by quick action coupling - which is actuated by compressed air stored in hollow outer arm
08/14/1991DE4003642A1 Excavator optional accessory with release mechanism
08/14/1991DE4003641A1 Excavator optional accessory with release mechanism
08/14/1991DE4003325A1 Shovel excavator with slewing superstructure - has boom slewing into rearwards facing travel position alongside superstructure
08/08/1991WO1991011565A1 Quick-action coupling for excavator attachment
08/08/1991DE4002177A1 Machine for forming sloping shoulder on road - consists of endless chain with attached cutting tools and earth storage hopper
08/06/1991US5036607 Combination lift, shovel and bucket attachment for vehicles
08/06/1991CA1287329C Method and apparatus for attaching a loader to a tractor
07/1991
07/31/1991EP0438931A1 Device for connecting a bucket, or the like, to the boom end of a loader
07/31/1991EP0438683A1 Method and device for dumping fine material on the sea bed or slopes during dredging
07/30/1991US5035290 Height sensing device including an ultrasonic sensor and a mechanical sensor
1 ... 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 ... 210