Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
03/1992
03/25/1992CN2099778U Non-sticking spade
03/24/1992US5098252 Skid steer loader adaptor
03/24/1992US5097911 Road clearing mine plow blade
03/19/1992WO1992004506A1 Coordinated control for a work implement
03/19/1992DE4029867A1 Swinging arm for excavating machine - is hydraulically actuated by two links to enable arm to swing through 180 deg.
03/19/1992CA2051493A1 Boom support assembly
03/17/1992US5095640 Method of producing bucket wheel bodies and bucket wheel body produced by the method
03/17/1992CA1297503C Trenching machine
03/11/1992EP0474210A1 Vertical lift loader boom
03/11/1992EP0473590A1 A caterpillar-driven excavating machine equipped with a separate working tool.
03/10/1992US5094581 Bale handling apparatus
03/10/1992CA1297086C Concrete crusher
03/07/1992CA2049917A1 Tilting device for backhoe
03/04/1992EP0377576B1 Constant pressure regulation of grader blades
03/03/1992US5092733 Tool controlling mechanisms for excavator with telescopic arm
03/03/1992US5092659 Continuous track-mounted, self-propelled open-cast mining machine
03/03/1992CA1296522C Grader blade with tiered inserts on leading edge
03/01/1992WO1992004545A1 Quick drop valve
03/01/1992CA2064573A1 Quick drop valve
02/1992
02/26/1992EP0472314A1 Method and tool for seabed excavation
02/26/1992EP0472115A1 Quick coupler
02/26/1992EP0471840A1 Electronic control type hydraulic driving machine
02/26/1992CN2097225U Guick-changing dipper teeth
02/25/1992CA1296370C Excavating tooth
02/20/1992DE4026210A1 Attachment of excavator bucket to arm - involves hooks locked by spring-loaded pawl
02/18/1992US5088882 Universal coupling
02/18/1992US5088881 Tapered pin mounting for loaders
02/18/1992US5088213 Front hoe attachment for loader
02/18/1992CA1295869C Implement structure for facilitating easy mounting to and disconnection from a lawn and garden tractor
02/12/1992EP0470191A1 Method and apparatus for the active prevention of sedimentation in harbors and waterways
02/11/1992US5088020 Pivotal movement control device for boom-equipped working machine
02/11/1992US5087168 Tilting device for backhoe
02/06/1992WO1992001869A1 Method and unit for controlling vehicle for loading operation
02/06/1992WO1992001538A1 Hydraulic control system
02/06/1992DE4124738A1 Control system for hydraulic bucket - has processor control for level scraping using position sensors on arm of vehicle
02/04/1992US5084990 Dragline bucket and method of operating the same
02/04/1992CA1295286C Loader mounting system
02/04/1992CA1295285C Latching mechanism for a loader
01/1992
01/29/1992EP0468771A1 A construction machine accessory coupling mechanism
01/28/1992US5083894 Apparatus for maintaining attitude of bucket carried by loading/unloading vehicle
01/28/1992US5083386 Apparatus and method for forming a crater in material beneath a body of water
01/26/1992CA2047766A1 Accessory detachable mechanism of construction machine
01/23/1992DE4022594A1 Preparation machine for laying paving slabs - with beam alignment of adjustable scraper driven by servo motors
01/22/1992EP0467837A1 Connection of a tool to an arm of an excavating machine
01/22/1992EP0466797A1 Coupling mechanism for rotatable plate
01/22/1992EP0357652B1 Pneumatic extraction head
01/21/1992US5082389 Connector with a spring-biased closure member
01/21/1992US5082065 Quick attach implement coupler
01/16/1992DE4122152A1 Twin-jaw hydraulic grab - has rams turning components to which jaws are secured by locking devices
01/15/1992EP0466117A2 Visual information processing device
01/14/1992US5080151 Lifting and crushing apparatus for tree stumps
01/14/1992US5079864 Brush rake
01/08/1992EP0464192A1 Quick-action coupling for excavator attachment.
01/07/1992US5078569 Quick attaching mechanism for a front-end loader
01/07/1992US5078215 Method and apparatus for controlling the slope of a blade on a motorgrader
01/07/1992US5078214 Method of amelioration of soil for tree planting
01/07/1992CA1293883C2 Soil leveling apparatus with improved frame and hitch
01/01/1992CN2091895U Antiwear dipper teeth
12/1991
12/31/1991US5076370 Mounting assembly for a grader moldboard
12/31/1991US5075985 Offal scraper
12/31/1991CA1293635C Soil leveling apparatus with improved frame and hitch
12/27/1991EP0462401A2 Working vehicle
12/27/1991EP0462181A1 Impact bucket apparatus
12/24/1991US5074063 Undercut trenching machine
12/24/1991US5074061 Land arranger
12/18/1991EP0431011A4 An implement positioning control system for construction machines
12/17/1991US5073080 For handling elongated articles
12/17/1991US5072991 Floating grab dredge and unloading method therefor
12/17/1991CA1293224C Backhoe vehicle
12/12/1991WO1991018716A1 Quick fastening device
12/12/1991DE4026590A1 Schaufelrad mit einem tragkoerper Impeller with a tragkoerper
12/12/1991CA2024263A1 Wear resistant offset sidebar chain
12/10/1991WO1991019861A1 Bucket wheel with supporting body
12/10/1991US5071310 Rotary dipper stick
12/10/1991US5071284 Road maintainer
12/10/1991US5071183 Tool for installing cutting blades on graders
12/10/1991CA2081919A1 Bucket wheel with supporting body
12/05/1991DE4016759A1 Hydraulic hammer-scoop combination - fits on excavator arm, and involves support connected to tool rotary axis
12/05/1991CA2018274A1 Ditcher
12/04/1991EP0459100A1 Bucket
12/03/1991US5070286 Manipulator for public works machines and machine equipped with such manipulator for road works
12/03/1991US5069296 Pitch/tilt dozer
12/03/1991CA1292660C Fluid-power bearing actuator
11/1991
11/28/1991WO1991018152A1 A device for soil processing
11/27/1991EP0457907A1 Connecting pin device for working machine operating links
11/27/1991CN2089447U Dredger for fish pond
11/27/1991CN1056578A Method and equipment for clay expansion experiment
11/26/1991US5067321 Hydraulic hoisting circuit with electrical control for relief valve adjustment pilot and pilot disable valve
11/21/1991EP0456796A1 Installation for shifting won minerals.
11/21/1991EP0456692A1 Cutting apparatus.
11/20/1991CN2089026U Mechanical tube dredging machine
11/19/1991US5065967 Seat device for very small size shovel car
11/19/1991US5065646 Process for fabricating a moldboard blade
11/19/1991US5065514 Attachment for metal demolition shears
11/13/1991EP0455672A1 Trench excavating arm propulsion apparatus.
11/13/1991CN2088566U Dual-cylinder drawing type fork conveyer
11/12/1991US5065326 Automatic excavation control system and method
11/12/1991US5064339 Backhoe boom lock
11/12/1991US5064338 Implement mounting apparatus for tractors and mowers
11/12/1991US5063741 Engine-speed responsive cavitation preventing system