Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
07/1992
07/30/1992CA2035210A1 Lift arm lock down apparatus and method
07/29/1992EP0496481A2 Soft excavator
07/28/1992CA1305737C Support assembly for a dragline bucket
07/23/1992DE4138619A1 Soil etc. exhauster with loose material accumulator - which has connecting branch for soil suction tube, coupling branch for suction line, and jib holder
07/23/1992DE4101582A1 Force introduction point on box supports - has hollow cylinder forming torsion-rigid pat connecting box support to bearing point
07/22/1992EP0495738A1 Reinforced metal telescopic beam element
07/22/1992EP0494863A1 Rotary dipper stick.
07/22/1992CN2110660U Double-rope inverted scissor type grab bucket
07/15/1992EP0494257A1 Demolition hammer
07/14/1992US5129780 Hydra-lift stand for loaders
07/14/1992US5129168 Moon lock
07/14/1992US5129167 Method of and apparatus for preventing diffusion of muddy water in sand gathering equipment
07/14/1992CA1305102C Controllable locking apparatus for implement carrying work vehicle
07/11/1992WO1992012298A1 Sweeping appliance for excavators
07/09/1992WO1992008850A3 Device for controlling at least one attachment
07/08/1992EP0493730A1 Backhoe with locking device
07/07/1992US5127765 System for in-situ treatment of underwater contaminated material
07/07/1992US5127567 Rail processor
07/07/1992US5127172 Guard rail cleanout device
07/02/1992DE4040366A1 Earth-moving machine loosening mechanism - has buckets and shutters in wheel extending to central shaft
07/01/1992CN2108749U Dredger for underwater
07/01/1992CN2108748U Loading machine with dual-telescopic arm
07/01/1992CN2108747U Dredger with digging wheel turning round axis used for underwater
07/01/1992CN2108746U Digging screw of dredger
07/01/1992CN2108745U Wheel type unpowered walking hydraulic dredger
07/01/1992CN2108744U Soil-shifting waterwheel
06/1992
06/30/1992US5125788 Quick-change system
06/30/1992US5125787 Backhoe boom construction
06/25/1992WO1992011418A1 A linkage arrangement for a multi-purpose vehicle
06/25/1992WO1992010637A2 Tool for making holes in the ground
06/25/1992CA2098618A1 Linkage arrangement for a multi-purpose vehicle
06/23/1992US5123805 Frame structure for attaching a working implement
06/23/1992US5123710 Impact assisted segmented cutterhead
06/23/1992US5123185 Front loader jaw accessory
06/16/1992US5121562 Framework for maintained levelness of a plow blade
06/16/1992US5121561 Load reducing and alignment system for drag line excavators
06/16/1992US5121557 Articulating attachment for front loaders and the like
06/16/1992CA1303554C Loader coupler
06/16/1992CA1303553C Tiltable bucket assembly
06/11/1992WO1992009755A1 Loader bucket
06/11/1992WO1992009754A1 Offset-boom construction machine
06/09/1992US5120186 Crane attachment for loading machines
06/09/1992CA1302957C Mobile earth mover having a scraper blade
06/04/1992DE4139041A1 Remote control appts. for excavator - detects presence of transmission cable and switches between wireless and cable remote control systems accordingly
05/1992
05/29/1992WO1992008850A2 Device for controlling at least one attachment
05/27/1992EP0486898A1 Method and device for adjustment of working caracteristics of an impact mechanism to the hardness of the material to be destroyed
05/27/1992EP0486871A1 Method for assisting the crushing capacity of demolition apparatus and apparatus used in such method
05/26/1992US5116189 Loader bucket with power lift apparatus
05/26/1992US5116186 Apparatus for controlling hydraulic cylinders of a power shovel
05/26/1992US5115583 Auxiliary ripper tooth for backhoe
05/21/1992DE4133505A1 Vorrichtung zur fuehrung wenigstens eines werkzeugs Apparatus for Speedtracking at least one tool
05/21/1992DE4018086A1 Hydraulic tool for improving excavation efficiency on deep trenches - uses side wall pressure parts to reduce friction loss and improve lateral tolerances
05/20/1992CN1016725B Method and apparatus for placing hollow column in hard bottom of water
05/19/1992US5114301 Rotator for backhoe equipment
05/19/1992US5114299 Attachment for a prime mover
05/19/1992US5113825 Engine controller
05/19/1992US5113610 Rotating disk type ditcher
05/19/1992US5113609 Propulsion apparatus
05/19/1992CA1301347C Manipulator arm position sensing
05/19/1992CA1301118C Self-contained demolition bucket attachment
05/19/1992CA1301093C Tortional limiting device for a vehicular ditching apparatus
05/13/1992EP0456692A4 Cutting apparatus
05/12/1992US5112161 Method for excavating and constructing monolithic continuous straight or circular structural walls and a machine for realizing such a method
05/12/1992US5111888 Hammer-swinging mechanism
05/12/1992US5111602 Backhoe clamp improvement
05/12/1992US5111601 Excavation device with rotary cutter having a horizontal axis
05/12/1992US5111578 Method of manufacturing a backhoe boom
05/12/1992CA1300556C Loader boom construction
05/06/1992EP0483232A1 Coupling of drive systems to an accessory of an excavator or the like.
05/06/1992EP0455672A4 Trench excavating arm propulsion apparatus
05/05/1992US5110254 Quick-release coupling for earthworking machines
04/1992
04/30/1992WO1992007146A1 Cutter wheel assembly
04/30/1992WO1992007145A1 System for controlling number of rotations of prime mover in hydraulically driven vehicle
04/30/1992DE4132908A1 Mechanical excavator unit - has articulated arm which can be rotated about horizontal axis
04/29/1992CN1060691A Rail processor
04/28/1992US5108253 Hydraulic piping structure for a backhoe
04/28/1992US5108252 Quick-disconnect coupling for a machine having a boom and a stick
04/28/1992US5107932 Method and apparatus for controlling the blade of a motorgrader
04/28/1992US5107610 Quick-coupling connector for backhoes and the like
04/22/1992EP0321542B1 Dragline bucket
04/21/1992US5106256 Step device in miniature shovel car
04/21/1992US5105896 Dynamic payload monitor
04/21/1992CA1299064C Fluid pressure control system
04/16/1992CA2053491A1 Boom point construction
04/15/1992CN2101691U Scraper and unloading device on caterpillar tractor
04/14/1992CA1298815C Apparatus for controlling posture of front loader
04/14/1992CA1298814C Material handling attachment for a tractor having a multiple-point hitch assembly
04/14/1992CA1298813C Apparatus for controlling posture of work implement of loader
04/08/1992EP0479747A1 An implement attachment means for mechanical diggers
04/08/1992EP0479708A1 A coupling system for tractor implements such as front loaders
04/07/1992US5101583 Articulated toothed excavating drum for road side ditches of desired profile
04/05/1992WO1992005905A1 Rail processor
04/05/1992CA2067819A1 Rail processor
04/02/1992WO1992005319A1 An apparatus for machines
04/02/1992DE4132597A1 Verfahren und vorrichtung zur steuerung eines baggers Method and device for controlling a baggers
04/02/1992CA2052398A1 Mechanical shovel
04/02/1992CA2052374A1 Implement attachment means for mechanical diggers
04/01/1992CN2100419U Dipper with ejecting device for small four-wheel tractors
03/1992
03/31/1992CA1298227C Materials transport and distribution apparatus
03/25/1992EP0475965A1 A device for a sorting shovel.