Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
07/1994
07/27/1994EP0407467B1 Hammer-swinging mechanism
07/26/1994US5332353 Quick coupler for excavation equipment
07/26/1994US5332331 Combination spreader/grader apparatus
07/26/1994CA2027822C Carrier frame for a quick coupler (13636-ca)
07/26/1994CA2013542C Notched pin latching in a pendulous quick connect loader attachment coupling system
07/13/1994EP0606153A1 Method and apparatus for water bottom removal of bottom material using a flow of water
07/13/1994CN2171636Y Miniatur multifunction work vehicle
07/12/1994US5327794 Device for driving a tool positioned on a pivotable part
07/06/1994CA2086701A1 Bucket stop
07/05/1994US5327345 Position control system for a construction implement such as a road grader
06/1994
06/29/1994EP0604402A1 Apparatus for maintaining attitude of bucket carried by loading/unloading vehicle
06/28/1994US5324162 Accessory detachable mechanism of construction machine
06/28/1994US5323687 For a backhoe loader
06/23/1994WO1994013891A1 Roadway trenching apparatus
06/22/1994EP0602165A1 A device for quick connection of hydraulic tubings.
06/22/1994CN2169654Y Connection structure for the scraper of bulldozer
06/21/1994US5321902 Dump block for strip mine rigging apparatus
06/21/1994CA1330258C Reversible moldboard assembly
06/15/1994EP0601239A1 Device for driving a tool positioned on a pivotable part
06/15/1994EP0500730B1 Quick drop valve
06/15/1994EP0464192B1 Quick-action coupling for excavator attachment
06/15/1994EP0381708B1 Controllable locking apparatus for implement carrying work vehicle
06/15/1994CN2168891Y Hydraulic bulldozer
06/15/1994CN2168890Y Multi-bucket excavator with internal adjustment
06/14/1994CA2072342C Quick coupling arrangement for excavator buckets and the like
06/08/1994EP0600047A1 Blade assembly for a compacting vehicle
06/07/1994CA1330116C Implement positioning control system for construction machines
06/01/1994EP0599797A1 Apparatus for dredging underwater bottoms, and dredge head for such an apparatus
06/01/1994EP0599176A1 Implement for an Excavator
06/01/1994EP0598936A1 Method of controlling multitasking excavator system
06/01/1994DE4307763C1 Digging bucket for removing bearing material - has scrapers along sides of digging bucket arm to remove material residues from adjoining walls.
05/1994
05/31/1994USRE34620 Trenching apparatus and methods of forming inground retaining walls
05/31/1994US5316709 Method of making a dipper stick for an excavator from high strength polymeric composite materials
05/31/1994US5315772 Farm tractor with backhoe bucket
05/31/1994US5315770 Roadway trenching apparatus
05/26/1994WO1994011584A1 Apparatus for coaction with machines such as wheel-mounted loaders and the like to equalize the effect of irregularities in a base surface
05/26/1994WO1994011583A1 Earth moving apparatus
05/26/1994DE4238987A1 Trough-shaped pivoted loading appliance - has pivoted sieve with variable mesh size, to prevent collection of large rocks etc.
05/24/1994US5314292 Material clamping apparatus
05/18/1994EP0437557B1 Trenching shovel
05/18/1994CN1086873A Apparatus for cutting and excavating solids
05/17/1994US5311683 Method of commencing and continuing a trench
05/17/1994US5311682 For dredging material from a bottom of a fluid reservoir
05/17/1994CA1329627C Quick release hydraulic hitch for construction equipment and excavators
05/11/1994EP0596065A1 Process and tool for removing floor and wall coverings.
05/11/1994DE4335479A1 Detecting inclination of excavations, esp. trench walls - using measurement cell on excavating tool with wireless data transfer to base station
05/10/1994US5310275 Universal coupler
05/04/1994EP0595614A1 Telescopic arm for grab bucket excavator
05/03/1994US5309407 Ultrasonic control unit for a travelling cutter
05/03/1994US5308220 Scoop-and-dump jack for shovel-loader
05/03/1994US5308219 Process for automatically controlling actuators of excavator
05/03/1994US5307698 Vertical measurement system
05/03/1994US5307571 High production system bucket
05/03/1994US5307570 Damping device for dirt scrapers
04/1994
04/30/1994CA2108870A1 Deep excavator
04/28/1994WO1994009215A1 Masterhitch excavator bucket coupling system
04/28/1994DE4235446A1 Tennis-court maintenance machine - comprises wheeled chassis with loosening shares and oblique scraper blade adjustable below ground surface level
04/27/1994EP0594486A1 Quick coupling device for earthmoving machines
04/21/1994DE4234904A1 Travelling dredger for building excavations and shafts - has flat ramming surface on underside of dredger shovel and has high frequency vibrator between boom and shovel
04/20/1994EP0593355A1 Trenching apparatus for digging deep trenches with cutting drums
04/20/1994EP0592722A1 Shearing machine for steel material
04/19/1994US5303792 Amoring structure for construction machines
04/14/1994WO1994008100A1 Detachable finishing blade for excavating bucket
04/14/1994WO1994008099A1 Linkage arrangement
04/14/1994WO1994008098A1 Working tool unit of construction machine
04/13/1994EP0592329A1 Telescopic guiding element for trenching apparatus for digging deep trenches with cutting drums
04/13/1994EP0592326A1 Trenching apparatus for digging deep trenches with cutting drums
04/13/1994EP0592325A1 Trenching apparatus for digging deep trenches with cutting drums mounted on a chassis
04/13/1994EP0591442A1 Quick disconnect bucket actuator.
04/05/1994USRE34576 Casting of structural walls
03/1994
03/31/1994WO1994006973A1 Hydraulic thrust producing implement
03/30/1994EP0371083B1 Plow for motor grader
03/29/1994US5297649 Apparatus for controlling output from engine on crawler type tractor
03/22/1994US5295318 Backhoe-loader
03/22/1994US5295317 Apparatus for excavating earthen material by evacuation of same
03/22/1994CA2078750A1 Bladed vehicle with load gripping arms
03/22/1994CA1327958C Gear lock quick disconnect mechanism for articulated machine
03/17/1994WO1994005917A1 Controller of hydraulic driving machine
03/17/1994DE4230225A1 Trough-shaped shovel tipping to unload - has heavy lining lifting off inner surface under gravity to aid unloading
03/17/1994CA2106162A1 Mining apparatus
03/16/1994EP0587256A2 Dredging apparatus
03/15/1994CA2032452C Quick attaching mechanism for a front end loader
03/15/1994CA1327788C Method for excavating hole and apparatus therefor
03/10/1994DE4229887A1 Earth moving machine for loosening and grading massive spoil dumps - has extended superstructure, slewable about vertical axis, as support of working unit on intermediate structure.
03/10/1994DE4229886A1 Earth moving machine for loosening and grading spoil dumps - has extended superstructure, slewable on intermediate structure, and luffing jib with working unit.
03/10/1994DE4224829A1 Loading and unloading system for open railed goods trucks - has movable portal supporting displaceable bridge having three movable box like stations with telescopic inserts and swivel scoops
03/09/1994EP0585624A1 Levelling blade with suplementary outriggers
03/09/1994EP0585462A1 Device for controlling working vehicle in material transfer system
03/09/1994EP0585377A1 Lift arm and tilt linkage systems for load elevating vehicles
03/08/1994US5292220 Linkage mechanism
03/08/1994US5292079 Concrete breaker with protective cover
03/08/1994US5291657 Shearing machine for steel material
03/03/1994WO1994004791A1 Apparatus for cutting and excavating solids
03/03/1994WO1994004764A1 Dragline excavator bucket and rigging
03/03/1994WO1994004763A1 Trench cutting assemblies
03/03/1994DE4228465A1 Flexible or elastic wall elements on ore charging bucket - has walls which may be covered with flexible elements which consist of short lengths of steel cable rooted in blind bores
03/03/1994CA2142106A1 Apparatus for cutting and excavating solids
03/03/1994CA2141856A1 Dragline excavator bucket and rigging
03/02/1994EP0600047A4 Blade assembly for a compacting vehicle.
03/01/1994US5290119 Apparatus and method for retaining a pin