| Patents for E02F 9 - Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups (23,883) |
|---|
| 12/27/1991 | EP0462589A2 Control system for load sensing hydraulic drive circuit |
| 12/26/1991 | WO1991019908A1 Electrohydraulic control apparatus and method |
| 12/24/1991 | US5074370 Dual-track chassis |
| 12/24/1991 | US5074194 Hydraulic driving method of and hydraulic driving apparatus for hydraulic machine |
| 12/24/1991 | US5074062 Method of replacing a worn excavating tooth point |
| 12/18/1991 | EP0461258A1 Control unit for upper swivel body of hydraulic excavator |
| 12/18/1991 | EP0431011A4 An implement positioning control system for construction machines |
| 12/17/1991 | US5072991 Floating grab dredge and unloading method therefor |
| 12/17/1991 | CA1293224C Backhoe vehicle |
| 12/12/1991 | WO1991019100A1 Device for and method of controlling vehicle for loading work |
| 12/12/1991 | DE4026590A1 Schaufelrad mit einem tragkoerper Impeller with a tragkoerper |
| 12/12/1991 | CA2044346A1 Multi-function hydraulic control handle |
| 12/10/1991 | WO1991019861A1 Bucket wheel with supporting body |
| 12/10/1991 | US5071183 Tool for installing cutting blades on graders |
| 12/10/1991 | CA2081919A1 Bucket wheel with supporting body |
| 12/03/1991 | US5070286 Manipulator for public works machines and machine equipped with such manipulator for road works |
| 12/03/1991 | US5068986 Excavating tooth point particularly suited for large dragline buckets |
| 11/28/1991 | WO1991018212A1 Hydraulic system |
| 11/28/1991 | WO1991018211A1 Control valve provided with pressure compensated valve |
| 11/28/1991 | WO1991018153A1 Traveling direction indicator for hydraulic excavator |
| 11/27/1991 | EP0457913A1 Hydraulic motor driving circuit device |
| 11/27/1991 | EP0457907A1 Connecting pin device for working machine operating links |
| 11/26/1991 | US5067389 Load check and pressure compensating valve |
| 11/26/1991 | US5067321 Hydraulic hoisting circuit with electrical control for relief valve adjustment pilot and pilot disable valve |
| 11/26/1991 | US5067262 Digging tooth |
| 11/21/1991 | EP0456796A1 Installation for shifting won minerals. |
| 11/19/1991 | US5066188 Apparatus for loading and unloading open top railroad cars |
| 11/19/1991 | US5065967 Seat device for very small size shovel car |
| 11/14/1991 | WO1991017363A1 Load sensing hydraulic system |
| 11/13/1991 | EP0298083A4 Load compensated valve |
| 11/12/1991 | US5065326 Automatic excavation control system and method |
| 11/12/1991 | US5063742 Method of controlling swing motion of a revolving superstructure and hydraulic control system for carrying out same |
| 11/12/1991 | US5063741 Engine-speed responsive cavitation preventing system |
| 11/12/1991 | US5063696 Excavator bucket tooth retention device |
| 11/12/1991 | US5063695 Replaceable wear element and method |
| 11/06/1991 | EP0321475A4 Load responsive system having synchronizing systems between positive and negative load compensation |
| 11/05/1991 | US5062755 Articulated arm control |
| 11/05/1991 | US5062350 Hydraulic drive system for civil engineering and construction machine |
| 11/05/1991 | US5062264 Actuators |
| 10/31/1991 | WO1991017323A1 An indicating apparatus for a coupling |
| 10/31/1991 | WO1991016230A1 Connected link type rubber crawler |
| 10/31/1991 | CA2076387A1 Indicating apparatus for a coupling |
| 10/30/1991 | CN1055786A Replaceanle wear element and method |
| 10/22/1991 | US5058753 Dragline rotating frame structure |
| 10/22/1991 | US5058294 Grade control system for continuous bucket excavators |
| 10/17/1991 | WO1991015636A1 Hydraulic drive system in civil engineering-construction machine |
| 10/17/1991 | WO1991015106A1 Draft control apparatus and method |
| 10/17/1991 | DE4011512A1 Hydrostatic traversing gear control - uses pressure control valve for axial piston and displacement motor assemblies and influences high pressure regulator |
| 10/17/1991 | DE4011316A1 Satellite geodesy system for excavator shovel wheel position |
| 10/16/1991 | EP0451520A2 Method of determining the progress and the amount produced in open-pit mine using satellite geodesy |
| 10/16/1991 | EP0451274A1 Hydraulic controller |
| 10/16/1991 | EP0451271A1 Automatic transmission equipped with auxiliary hydraulic speed-changing gears |
| 10/15/1991 | US5056985 Backhoe control mechanism |
| 10/15/1991 | US5056984 Apparatus and method for towing a tractor equipped with a front end loader |
| 10/15/1991 | US5056615 Vehicle control system |
| 10/15/1991 | US5056312 Hydraulic drive system for construction machines |
| 10/15/1991 | US5056243 Connection for elements at least one of which is subject to abrasive wear |
| 10/15/1991 | CA1290780C Wear runner for excavating bucket |
| 10/15/1991 | CA1290771C Apparatus for trencher |
| 10/09/1991 | EP0450156A1 Protection device for a hydraulic jack piston rod |
| 10/08/1991 | US5054812 Stabilizer pad for earth-moving apparatus |
| 10/08/1991 | CA1290286C Locking and sliding system |
| 10/07/1991 | WO1991015637A1 Wear strips |
| 10/07/1991 | CA2069341A1 Wear strips |
| 10/02/1991 | EP0448716A1 Teaching/playback method of working machine |
| 10/02/1991 | DE4017379C1 Cable plough towable for cable laying - allows distance between front wheels and share to be varied and fixed in selected position |
| 10/01/1991 | US5052883 Implement positioning control system for construction machines |
| 10/01/1991 | US5052179 Pump discharge flow rate controlled by pilot pressure acting on vehicle drive valves |
| 10/01/1991 | US5052134 Tooth mounting apparatus for excavation bucket |
| 09/26/1991 | DE4008720A1 Hydraulic circuit for dump truck - has pipes to collect leakage oil and automatic valve to discharge oil into circuit |
| 09/25/1991 | EP0447511A1 Process and system for monitoring an installation, such as an automobile crane, large excavator or the like. |
| 09/25/1991 | EP0259472B1 Dredger |
| 09/25/1991 | CN1054809A Anti-wear material for long-life digging elements and its manufacturing method |
| 09/24/1991 | US5051057 Latch for a reversible stabilizer foot |
| 09/24/1991 | US5050904 Stabilizer pad for earth moving apparatus |
| 09/24/1991 | US5050483 Flow control device |
| 09/24/1991 | US5050456 Automatic speed changing apparatus for vehicle |
| 09/18/1991 | EP0446353A1 Operation automating apparatus of hydraulic driving machine |
| 09/17/1991 | US5048296 Anti-vibration apparatus in a hydraulic system for boom cylinder of working apparatus |
| 09/17/1991 | US5048293 Pump controlling apparatus for construction machine |
| 09/17/1991 | US5048172 Method for converting a "backhoe" to a "crane" using a "true free fall" hydraulic winch system |
| 09/17/1991 | CA1289038C Hydraulic control for earth working machines |
| 09/11/1991 | EP0445933A1 Skid steer vehicle |
| 09/11/1991 | EP0445829A2 Automatic speed shifting device |
| 09/11/1991 | EP0445703A2 Hydraulic drive system |
| 09/11/1991 | CN1013891B Cutter bit and tip |
| 09/10/1991 | US5046312 Swivel speed control circuit for working vehicle |
| 09/10/1991 | US5046309 Energy regenerative circuit in a hydraulic apparatus |
| 09/05/1991 | WO1991013218A1 Hydraulic driving device of construction machinery |
| 09/05/1991 | WO1991013217A1 Hydraulic drive system in construction machine |
| 09/03/1991 | US5044812 Sealed and lubricated pivot pin assembly and method |
| 09/03/1991 | US5044256 Exhaust pressurizing control for a fluid system |
| 09/03/1991 | CA1288457C Pivot assembly |
| 08/28/1991 | EP0443830A1 Loader vehicle |
| 08/28/1991 | EP0443829A1 Skid steer vehicle |
| 08/28/1991 | EP0443828A1 Skid steer vehicle |
| 08/28/1991 | EP0443288A1 Improved apparatus for orientation and guidance of machines |
| 08/22/1991 | WO1991012453A1 Hydraulic pilot valve |
| 08/22/1991 | WO1991012151A1 Utility vehicle |
| 08/22/1991 | DE4104283A1 Multipurpose vehicle for building site - has hydraulic transmission system which drives both axles |