| Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930) |
|---|
| 07/30/1991 | US5035071 Trench wall cutter |
| 07/25/1991 | WO1991010783A1 Automatic vibration method and apparatus for hydraulic excavator |
| 07/25/1991 | WO1991010353A1 Tree excavator |
| 07/23/1991 | US5033214 Trenching attachment mounting system |
| 07/17/1991 | EP0436740A1 Linear excavation control apparatus in hydraulic excavator |
| 07/17/1991 | EP0306532B1 Stop position correction apparatus of bucket |
| 07/11/1991 | WO1991010016A1 An excavator bucket |
| 07/09/1991 | CA1285961C Vortex counter flow dreding/pumping system |
| 07/04/1991 | DE3942983A1 Excavator optional accessory with release mechanism |
| 07/03/1991 | EP0435796A1 Bucket provided with adjustable width for earth moving machines |
| 07/03/1991 | EP0435702A1 Demolition tool for a hydraulic excavator |
| 07/03/1991 | EP0290494B1 Connector |
| 07/02/1991 | US5028199 Apparatus for controlling speed of working machine in the form of a construction machine |
| 07/02/1991 | US5027667 Spring actuator with rollers |
| 07/02/1991 | CA1285419C Mobile self propelled crushing machine |
| 06/27/1991 | WO1991009183A1 Method and apparatus for automating work of construction equipment |
| 06/27/1991 | WO1991008874A1 Demolition tool for a hydraulic excavator |
| 06/27/1991 | WO1991008833A1 Rock and coral demolition tool |
| 06/26/1991 | EP0433892A1 A linkage system for making an equipment translate parallely to itself, such equipment being carried by an excavator or by a basic machine |
| 06/26/1991 | CN1052438A Rock and coral demolition tool |
| 06/26/1991 | CN1052437A Demolition tool for hydraulic excavator |
| 06/25/1991 | US5025625 Commonly housed directional and pressure compensation valves for load sensing control system |
| 06/20/1991 | DE3941123A1 Schleppzahn fuer schneidraeder Trailing tooth for cutting raeder |
| 06/19/1991 | EP0433244A1 A mobile elevator with backhoe |
| 06/19/1991 | EP0433098A1 Rock and coral demolition tool |
| 06/18/1991 | US5024280 Soil leveling apparatus with improved frame and hitch |
| 06/18/1991 | US5024010 Device in a quick coupling |
| 06/18/1991 | CA1284876C Tiltable and azimuthly rotatable tool holder for tractors |
| 06/15/1991 | CA2011497A1 Rock and coral demolition tool |
| 06/14/1991 | WO1991009181A1 Traction tooth for cutting wheels |
| 06/14/1991 | CA2072119A1 Traction tooth for cutting wheels |
| 06/13/1991 | WO1991008351A1 Installation for shifting won minerals |
| 06/12/1991 | EP0431011A1 An implement positioning control system for construction machines. |
| 06/06/1991 | CA2015433A1 Conveyor system for hauling debris |
| 06/05/1991 | EP0430316A2 Cutter head for dredging device, in particular for cutter suction dredgers |
| 06/04/1991 | US5020858 Method of and apparatus for forming and transporting mud clogs |
| 06/04/1991 | US5020249 Bucket for excavating beneath buried utility lines |
| 05/30/1991 | WO1991007547A1 Scraper blade and control mechanism thereof for use in road levelling |
| 05/28/1991 | US5018588 Anchor drilling implement |
| 05/28/1991 | US5018282 Mechanical shovel |
| 05/21/1991 | US5016721 Full-turn type working machine |
| 05/21/1991 | US5016365 Wear parts for excavation apparatus |
| 05/15/1991 | EP0427013A1 Floating dredger |
| 05/14/1991 | US5015148 Frame adapted for a tractor |
| 05/14/1991 | US5014734 Quick drop valve |
| 05/08/1991 | EP0426005A1 Coupling frame |
| 05/08/1991 | EP0425534A1 An arrangement in implement holders for assemblies which include a side-dumping excavating and loading bucket |
| 05/08/1991 | EP0305415B1 Mobile pump installation |
| 05/08/1991 | DE3934186A1 Two-shell grab suspension on excavator boom - has ram operated hinged mounting plate at grab swivel ring |
| 05/07/1991 | CA1283939C Positive keeper means for pins of earthworking tips |
| 05/02/1991 | WO1991005920A1 Armoring structure for construction machines |
| 05/02/1991 | WO1991005724A1 Excavating apparatus using supersonic jets |
| 05/02/1991 | EP0198840B1 Coupling apparatus |
| 04/30/1991 | US5010962 Indicating apparatus for a coupling |
| 04/30/1991 | US5010961 Angle-tilt-pitch mechanism for dozer blade |
| 04/24/1991 | EP0275257B1 Device for a load carrying unit |
| 04/23/1991 | US5009566 Retractable boom stop |
| 04/18/1991 | WO1991005113A1 Operation automating apparatus of hydraulic driving machine |
| 04/18/1991 | DE4028773A1 Excavator for steep inclines - has adjustable wheels at front and jointed thrust arms at rear |
| 04/17/1991 | EP0201503B1 Casting of structural walls |
| 04/16/1991 | CA1282955C Road making apparatus |
| 04/11/1991 | DE3932581A1 Mechanical excavator for digging drainage trenches - has bucket which can be swung in plane at right angles to machine |
| 04/11/1991 | DE3932555A1 Combined excavator and loader - has excavator mounted on driver's cab so that it does not obstruct driver's view |
| 04/09/1991 | US5005652 Method of producing a contoured work surface |
| 04/09/1991 | US5005466 Cavitation-preventing pilot valve control system for power shovel hydraulic circuit |
| 04/09/1991 | CA1282815C Method and apparatus for conveying solids using a high velocity vacuum |
| 04/09/1991 | CA1282740C Hydraulic excavator and compactor bucket therefor |
| 04/04/1991 | WO1991004378A1 Blade controller of bulldozer |
| 04/04/1991 | DE3931963A1 Control unit for earth moving or agricultural machines - has microcomputer operating with input from laser guide beam from remote station |
| 04/03/1991 | EP0419667A1 Service machine stopping apparatus for midget rotary power shovel |
| 04/03/1991 | EP0419484A1 Improvements relating to dredgers. |
| 04/03/1991 | CN2074322U Working device of self-loading dump truck |
| 04/02/1991 | US5004398 Backhoe mounting device for a skid steer loader |
| 04/02/1991 | US5004397 Attachment holder for interchangeable equipment on the superstructure of a mobile shovel excavator |
| 04/02/1991 | US5004168 For breaking relatively brittle material such as stone |
| 04/02/1991 | US5004022 Method and an arrangement for filling large sacks |
| 04/02/1991 | CA1282378C Sideshift mounted backhoe locking mechanism |
| 03/30/1991 | WO1991005136A1 Demolition hammer |
| 03/29/1991 | CA2026415A1 Stepping vehicle |
| 03/28/1991 | DE4017107A1 Continuously operating open-cut mining device |
| 03/26/1991 | US5002656 Rotary grid-structure bucket for separating from each other fine and coarse particles of sizable materials or products |
| 03/26/1991 | US5002454 Intuitive joystick control for a work implement |
| 03/26/1991 | US5002434 Method and apparatus for placing a hollow column in the hard bottom of a body of water in particular in a rock bottom |
| 03/26/1991 | CA1282093C Grapple assembly with individually mounted spring loaded teeth |
| 03/26/1991 | CA1282038C Device for removably attaching front loader to vehicle |
| 03/21/1991 | WO1991003654A1 Pivot joint for loader linkages and the like |
| 03/21/1991 | WO1991003606A1 Steering device of power shovel |
| 03/19/1991 | US5000650 Vehicle, material loading |
| 03/19/1991 | US5000269 Device for attaching working machine to vehicle |
| 03/19/1991 | US4999934 Dredging apparatus |
| 03/19/1991 | US4999893 Method of making a bentleg plow |
| 03/13/1991 | EP0416378A1 Corrosion inhibiting hydraulic cement additives and compositions containing same |
| 03/12/1991 | US4999022 Bucket-blade attachment for tractors |
| 03/07/1991 | WO1991002853A1 Automatic excavation control system and method |
| 03/07/1991 | WO1991002852A1 Gripping device |
| 03/06/1991 | EP0414738A1 Process for manufacturing bucket wheel bodies and bucket wheel bodies so obtained. |
| 03/06/1991 | CN2072511U Multi-purpose motor boat |
| 03/06/1991 | CN1049695A Working apparatus for soil-shifting machines |
| 03/05/1991 | US4997333 Backhoe boom lock |
| 02/27/1991 | EP0414660A1 Bucket excavator |