Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
04/1989
04/04/1989US4818005 Grapple with powered top and bottom jaw
04/04/1989US4817728 Implement structure for facilitating easy mounting to and disconnection from a lawn and garden tractor
04/04/1989US4817554 For rendering an earth mover amphibious
03/1989
03/29/1989EP0309064A1 A mobile earth mover having a scraper blade
03/28/1989US4815581 Apparatus for separating items conveyed in a contacting series
03/28/1989US4815542 Ground leveling attachment for box-scraper
03/28/1989US4815357 Adjustable divided flow self-leveling system
03/23/1989DE3730756A1 Device for introducing an elongated explosive charge into the ground
03/21/1989US4813164 Snowplow mounting assembly for front-end loaders
03/21/1989US4813163 Alignment fitting for attaching implements to a backhoe
03/15/1989EP0306532A1 Stop position correction apparatus of bucket
03/14/1989US4812103 Implement-coupling assembly for material-handling apparatus
03/14/1989US4811505 Excavating tooth assembly
03/14/1989CA1251039A1 Motor grader saddle
03/09/1989DE3249844C2 Attachment device for treating road coverings
03/08/1989EP0306468A1 Portable driven bucket
03/08/1989EP0306340A1 Tool coupler
03/08/1989EP0305658A1 Milling device for slits
03/08/1989EP0305415A1 Mobile pump installation.
03/07/1989US4810162 Mounting a working implement
03/07/1989US4809794 Determining of the amount of material delivered each operational cycle of a shovel loader
03/07/1989US4809449 Loader attachment
03/01/1989EP0304522A1 Improved trenching device
02/1989
02/28/1989US4808061 Single arm backhoe
02/28/1989US4808027 Compaction attachment for backhoe
02/28/1989US4808026 Construction apparatus with earth trimmer
02/28/1989US4807461 Motor grader main frame
02/28/1989US4807373 Loop circuit dredging apparatus
02/28/1989CA1250610A1 Bucket-wheel for an excavator
02/23/1989WO1989001548A1 Excavator shovel tooth
02/23/1989WO1989001545A1 Skid shoe
02/21/1989US4807131 Grading system
02/21/1989US4806375 Coffee or other aromatic plant materials
02/21/1989US4806067 Unit, attachable to a loader
02/21/1989US4805707 For attachment to a loader machine
02/21/1989US4805703 Method and apparatus for separating fine and coarse materials from excavated materials
02/21/1989US4805322 Excavating blade assembly
02/16/1989DE3725595A1 Crawler mounted bucket wheel excavator - has flexible conveyor belt and carrier system giving greater manoeuvrability
02/14/1989US4805086 Apparatus and method for controlling a hydraulic excavator
02/14/1989US4804309 Gripping device for boom-mounted work tool
02/14/1989US4804095 Underwater dredging operation
02/14/1989US4803789 Earth moving equipment
02/14/1989US4803788 Clamping attachment for backhoe
02/09/1989DE3725022A1 Underwater rope cutting process
02/08/1989EP0302762A1 Ocean floor dredging
02/08/1989EP0227716B1 Switching arrangement for the hydraulic supply of aggregate of a loader
02/07/1989US4802814 Device for attaching front loader to tractor
02/07/1989US4802537 Control circuit for positioning and tilting an earthmoving blade
02/07/1989US4802293 Adjustable earth-moving attachment for a vehicle
02/07/1989US4802292 Continuous mining device for crust deposits, etc. and continuous line bucket method with turning movement
02/02/1989DE3744695A1 Method for dredging and dressing silt from harbours, waterways etc.
02/02/1989DE3724251A1 Verfahren und vorrichtung zum baggern von schlick aus hafen, wasserstrassen oder dergleichen Method and device for dredging of silt from harbor, water roads or the like
01/1989
01/31/1989US4800967 Drilling machine for digging trenches in the ground
01/31/1989CA1249549A1 Metal cutting shear and adapter for mounting on a backhoe
01/26/1989WO1989000632A1 A device in a quick coupling
01/26/1989WO1989000631A1 Rock excavating shovel
01/26/1989WO1989000630A1 Process and device for dredging silt in ports, waterways and the like
01/26/1989WO1989000629A1 Bucket scoop with endless screw evacuator
01/26/1989DE3744063A1 Verfahren und vorrichtung zum schraegstellen des planierschildes von erdschiebern Method and device for schraegstellen the mold board of erdschiebern
01/25/1989EP0300437A2 Lawn- or garden tractor with an auxiliary device
01/24/1989US4799852 Self-contained demolition bucket attachment
01/24/1989US4799851 Level lift hydraulic valve
01/24/1989US4799320 Apparatus for digging surface trenches in the ground
01/24/1989CA1249316A1 Shovel dipper bail assembly
01/18/1989EP0299871A1 Excavating device for digging trenches in the ground
01/18/1989EP0299390A1 Tractor and ground working implement
01/18/1989EP0299378A1 Tractor and ground working implement
01/18/1989EP0299377A1 Tractor and ground working implement
01/18/1989EP0299104A1 Device for hydraulic excavators and cranes
01/17/1989US4798512 Material handling machine
01/17/1989US4798511 Method and apparatus for attaching a loader to a tractor
01/17/1989US4798011 Versatile tractor side blade mount
01/17/1989CA1248997A1 Digger tooth arrangement
01/17/1989CA1248977A1 Dredging apparatus cutting head
01/17/1989CA1248752A1 Grader blade assembly and pick therefor
01/12/1989WO1989000259A1 Power drive for working organ of industrial machine
01/12/1989DE3817213C1 Hydraulic harrow
01/11/1989EP0298358A1 Vehicle
01/11/1989CN2030625U Wear-preventing slipway of bucket
01/10/1989US4797067 Pumping system with desilting arrangement
01/10/1989US4797060 Earth-working machine
01/10/1989US4797051 Loader device for a tractor
01/10/1989US4796366 Plow/scraper assembly for earth mover vehicle
01/10/1989CA1248498A1 Hydraulically or manually actuated implement coupler for front end loaders
01/04/1989CN2030215U Assembly digging teeth
01/04/1989CN1030112A Side dumping loader
01/03/1989US4795305 Cable operated loader apparatus
01/03/1989US4794709 Device for digging trenches
01/03/1989US4794708 Trenching machine boom assembly
01/03/1989CA1248147A1 Determining of the amount of material delivered each operational cycle of a shovel loader
01/03/1989CA1248058A1 Loader device for a tractor
01/03/1989CA1247983A1 Rotary actuator with backlash elimination
12/1988
12/29/1988WO1988010342A1 Constant pressure regulation of grader blades
12/29/1988WO1988010341A1 Dragline bucket
12/28/1988CA1247663A Underwater dredging apparatus
12/27/1988US4793765 Material handling apparatus
12/27/1988US4793764 Loader mounting system
12/27/1988US4793732 Pavement slot cutter
12/20/1988US4791738 Dragline bucket
12/20/1988US4791737 Excavator