Patents
Patents for E02F 9 - Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups (23,883)
11/1989
11/28/1989US4883129 Bit assembly utilizing carbide insert
11/23/1989EP0215802B1 A ripping bucket arrangement
11/23/1989DE3816779A1 Cab for mobile working appliances, especially for commercial vehicles
11/21/1989US4881371 Auxiliary coupler pressure relief hydraulic system with pump drive ignition switch relief
11/21/1989US4881331 Teeth for use with earth moving equipment
11/21/1989CA1263069A1 Selective control device for plural kinds of oil- hydraulic actuators
11/16/1989WO1989011041A1 Hydraulic drive unit for construction machinery
11/16/1989WO1989011006A1 Material handling machine
11/15/1989EP0341698A1 Sideshift mounted backhoe locking mechanism
11/15/1989EP0341650A2 Hydraulic drive system for crawler-mounted construction vehicle
11/09/1989DE3814775A1 Front-mounted traction jaw coupling system for tractors, with lifting/pressure system for front tyre packers, front rollers and other front-mounted implements
11/09/1989DE3813881A1 Double-caterpillar running gear
11/02/1989WO1989010302A1 A vehicle arresting device
11/02/1989WO1989010211A1 A sorting device
11/02/1989DE3813197A1 Agricultural machine
10/1989
10/25/1989EP0337991A1 Load sensing circuit of load responsive direction control valve
10/24/1989US4875337 Construction machine dual-dump hydraulic circuit with piloted arm-boom cylinder supply priority switching valves
10/10/1989US4872274 Removable tooth with adapter for digging excavators
10/05/1989WO1989009310A1 Swing brake control apparatus for a power shovel
10/04/1989EP0335800A1 Vehicle for continuously gathering and loading materials
09/1989
09/27/1989CN1035868A Controlling system for load-transducing hydraulic circuit
09/26/1989US4869337 Backhoe creep lever mechanism for an excavating vehicle
09/26/1989CA1261944A1 Control apparatus and proportional solenoid valve control circuit for boom-equipped working implement
09/26/1989CA1261790A1 Dredger
09/20/1989EP0333066A1 Earth-moving machine, in particular a shovel loader
09/20/1989EP0332947A1 Vehicle, in particular a shovel loader
09/20/1989EP0203100B1 Hydraulic installation
09/20/1989CN2044619U Low-resistance and high-efficient anti-wear bucket
09/19/1989CA1259649A1 Pivot joint bearing retention
09/14/1989DE3906889A1 Flanged bearing and method for its manufacture
09/13/1989EP0331958A2 Hydraulic control device
09/12/1989US4866641 Apparatus and method for controlling a hydraulic excavator
09/12/1989US4864822 Control device for a hydrostatic drive for at least two actuators
09/08/1989WO1989008200A1 Method and apparatus for driving hydraulic machine
09/08/1989WO1989008190A1 Hydraulic control unit of hydraulic excavators
09/06/1989EP0331076A1 Hydraulic circuit for cylinder
09/05/1989USRE33042 Excavating tooth assembly
09/05/1989US4863337 Control system for working machine having boom
09/05/1989US4863294 Large roller bearing in the form of a wire bearing
08/1989
08/31/1989DE3817313A1 Brake system, especially a hydraulic brake system for a part, movable by way of a drive
08/31/1989DE3805344A1 Machine for civil engineering work, in particular for constructing trenches
08/31/1989DE3802584C1 Excavator
08/30/1989EP0330383A2 Articulated arm control
08/30/1989EP0330382A2 Manipulator arm position sensing
08/29/1989US4861171 Composite cylindrical roller bearing assembly
08/29/1989US4861069 Adjustable vehicle counterweight device with cylinder positioning means
08/29/1989CA1258828A1 Mounting for a linkage arrangement
08/23/1989EP0329114A1 Funeral device
08/22/1989US4858651 Control valve for construction equipment
08/22/1989US4858347 Continuous excavating apparatus and methods
08/22/1989US4858345 Front frames of wheel mounted type loaders
08/16/1989EP0328341A1 Seat belt interlock for loaders
08/16/1989EP0327647A1 Bulldozer blade control mechanism
08/16/1989EP0327558A1 Method and device for a construction machine, particularly an excavator
08/16/1989CN2042859U Excavating bucket
08/15/1989US4856278 Control arrangement for at least two hydraulic consumers fed by at least one pump
08/10/1989WO1989007177A1 Automatic implement position control system
08/10/1989WO1989007057A1 Automatic transmission for vehicles
08/08/1989US4854805 Apparatus for transporting loads
08/08/1989US4854392 Hose positioning assembly
08/02/1989EP0326150A1 Control system for load-sensing hydraulic drive circuit
08/01/1989US4852278 Method and apparatus for grading and measuring a surface having a curved profile
08/01/1989CA1258047A1 Backhoe mounting
07/1989
07/26/1989EP0325091A1 A multipurpose amphibian vehicle
07/25/1989CA1257888A1 Dragline bucket
07/25/1989CA1257853A1 Trolley mounted, hand-propelled home/professional digger, or 'mini-digger'
07/19/1989EP0324108A1 Pivotal attachment structure
07/18/1989US4848013 Two pin fastening assembly with interconnecting and retaining means
07/18/1989US4848012 Multi-purpose earthworking machine
07/18/1989US4848011 Loader bucket
07/18/1989US4848010 Backhoe machine
07/12/1989CN2040922U Extra dismountable rake teeth for rake head of rake suction type dredger
07/11/1989US4846283 Engine-sensing draft control system with multiple feedback compensation mechanisms
07/11/1989US4845948 Hydraulic circuit with a booster circuit for operating the working members of earth-moving machines
07/11/1989CA1257230A1 Earth moving machine
07/11/1989CA1257089A1 Self-tripping rippers
07/06/1989DE3832649A1 Space-saving wet multi-disk brake installed in the wheel hub of planetary running gear
07/06/1989DE3744029A1 Selective cut heading machine
07/05/1989EP0323024A1 Depth sensor for excavator
07/04/1989US4844685 Electronic bucket positioning and control system
07/04/1989US4844238 Curve-negotiating endless conveyor system
07/04/1989US4844196 Seat belt interlock for loaders
07/04/1989US4843743 Portable motorized shovel
06/1989
06/29/1989WO1989005921A1 Pivot assembly
06/28/1989EP0321475A1 Load responsive system having synchronizing systems between positive and negative load compensation.
06/22/1989DE3742198A1 Pulshydraulik-antriebssystem Pulse hydraulic drive system
06/20/1989CA1256129A1 Railroad mounted trench digger
06/20/1989CA1256070A1 Earth moving machine
06/15/1989WO1989005408A1 Pulsating hydraulic drive system
06/15/1989WO1989005396A1 Automatic warm-up system for internal combustion engine and hydraulic pump
06/13/1989US4838756 Hydraulic system for an industrial machine
06/13/1989US4838755 Automatic engine control for an excavator
06/13/1989US4838314 Secondary hydraulic steering system
06/13/1989CA1255781A1 Boom control system
06/08/1989DE3838768A1 Hydrostatic/mechanical power-shift transmission with a continuously variable effect and with toothed selector clutches for shifts proprietary to gear changes and multi-plate clutches for the gear changes
06/08/1989DE3838767A1 Hydrostatic/mechanical power-shift transmission with a continuously variable effect and a high-quality gear change
06/07/1989EP0319115A1 Improved tortional limiting device for a vehicular ditching apparatus
06/06/1989US4836740 Pivotal attachment structure
06/06/1989US4836245 Control valve
06/06/1989US4836165 Engine controlling apparatus for a wheeled type construction machine