Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
03/1982
03/23/1982CA1120503A1 Ocean mining system
03/23/1982CA1120453A1 Hose support bracket for backhoe swing frame
03/23/1982CA1120380A1 Hydraulic tilt and pitch control for dozer blade
03/18/1982WO1982000843A1 Guard structure for hydraulic conduits of a mobile apparatus
03/18/1982WO1982000841A1 Apparatus for controlling the position of the pivoting floor and strikeoff blade of an earthmoving scraper
03/18/1982WO1982000839A1 Apparatus and method for compacting material
03/17/1982EP0047245A1 Swing motor mounting arragement.
03/16/1982US4319782 Means for controlling feed of particulate material into airlift pipe
03/16/1982US4319415 Cutter head for suction dredges
03/16/1982US4319414 Dredgehead having forward water-deflecting means comprising two transverse elements
03/16/1982CA1120076A1 Excavator with a clamshell bucket having magnified vertical stroke
03/10/1982EP0047041A2 Device for picking up elements, for example, of a pavement
03/10/1982EP0046854A1 Device to control the scraping device of a dredger, especially with a parallel guidance of the dipper set at a given cutting angle
03/09/1982US4318663 Levelling device for a material handling member
03/09/1982US4318662 Backhoe coupling device
03/09/1982US4318233 Powered liquid inlet screen
03/09/1982CA1119695A1 Control system for controlling a plant including a mobile suction device for sucking suspendible material
03/04/1982WO1982000630A1 Load skidding vehicle
03/02/1982US4317299 Tooth arrangement for earthworking implement
03/02/1982CA1119130A1 Router bit assembly for an earth working apparatus
02/1982
02/24/1982EP0046234A1 Material-handling and earth-moving vehicle
02/23/1982US4316697 Front-loading hydraulic excavator
02/23/1982US4316336 Drive mechanism for sand, etc., dredging apparatus
02/16/1982US4315375 Earth moving bucket
02/09/1982US4314789 Equipment for lateral excavation
02/09/1982US4314622 Extension boom for tractors having back hoe attachments
02/09/1982US4314414 Trench digging apparatus and bearing therefor
02/09/1982CA1117911A1 Attachment for a back hoe
02/09/1982CA1117910A1 Loader boom position retainer
02/04/1982WO1982000310A1 Kickout bucket positioner
02/02/1982CA1117558A1 Trench digging apparatus
01/1982
01/26/1982US4312762 Method and apparatus for removing sediment or other flowable solid material from a bed underlying a body of water
01/26/1982US4312411 Slide rail assembly for a work vehicle
01/26/1982US4312145 Replaceable fastener for cover plates and the like
01/26/1982CA1116913A1 Backhoe mounted vibrating plate soil compactor
01/19/1982US4311428 Connectors
01/19/1982US4311342 Dredge head with mechanical and pumping action
01/19/1982US4311200 Bulldozer
01/19/1982US4311066 Reduction gear and speed control for dredge pumps
01/19/1982US4310975 Dredging or excavating machine for marshes or canals
01/13/1982EP0043725A1 Control system for a tractor power lift system
01/12/1982CA1116189A2 Steerable ocean floor dredge vehicle
01/12/1982CA1116188A1 Steerable ocean floor dredge vehicle
01/12/1982CA1115952A1 Variable wing plow blade and mounting structure therefor
01/05/1982US4309142 See-through bucket
01/05/1982US4308677 Ejector type scraper
01/05/1982CA1115514A1 Bulldozer blade mounting apparatus
12/1981
12/30/1981EP0042608A1 Support facility for tools, disconnectable from a tractor
12/30/1981EP0042607A1 Support facility for a front loading device disconnected from a tractor
12/29/1981US4307992 Load handling vehicle with a bucket side tilt mechanism
12/29/1981US4307991 Swing motor mounting arrangement
12/29/1981US4307525 Pneumatic-hydraulic pump dredge
12/29/1981US4307522 Land Grading Machine
12/29/1981CA1115175A1 Backhoe swing cylinder hydraulic circuit
12/29/1981CA1115049A1 Earth moving machine of the scraping blade type
12/22/1981US4306832 Front end loader with improved reach controls
12/22/1981US4306625 Blade and frame assembly for power machines
12/22/1981US4306364 Vertical excavating arrangement
12/22/1981US4306363 Side cutter apparatus for an excavating machine
12/22/1981CA1114915A1 Implement position indicator
12/15/1981US4305572 Return assembly for a swivable sheave
12/15/1981US4305214 In-line centrifugal pump
12/15/1981CA1114156A1 Scraper blade undercarriage mounting assembly
12/08/1981US4304520 Compound boom latch
12/08/1981US4304307 Scraper blade attachment for tractors
12/08/1981US4304305 Frame for mounting tilt and angled dozer blade to tractors
12/08/1981US4304077 Mounting assembly for hydraulic conduits of a mobile apparatus
12/08/1981US4304058 Coupling of an excavator shovel
12/01/1981US4303865 Cold cathode ion source
12/01/1981US4303507 Scraper-sifter and distributing device
12/01/1981US4302894 Manual shovelling and dumping devices
12/01/1981US4302893 Digging wheel for a suction dredger vessel
11/1981
11/24/1981US4302055 Wedgingly mounted tool holder or adapter for a cutting head
11/24/1981US4302052 Modular hydraulic mining tool with slurry inlet metering
11/24/1981US4301607 Hydraulic excavator
11/24/1981US4301606 Apparatus for excavating a trench underneath a pipeline installed on the sea bottom
11/17/1981US4300585 Automatic dump valve
11/17/1981CA1112578A1 Drive system for a skid steer loader
11/12/1981WO1981003192A1 Quick coupling
11/11/1981EP0039373A2 Compact resonance drive for earth-working equipment
11/10/1981US4299530 Vehicle with adjustable balance weight
11/10/1981US4299290 Grading machine and blade moving structure therefor
11/10/1981CA1112204A2 Method and apparatus for digging and transporting soil and sand, stones and rocks, minerals and the like
11/04/1981EP0039050A1 Scraper bucket for vehicles with a front fork
11/03/1981US4297815 Power arm fitted with coupling devices for a member provided to control its position
11/03/1981US4297799 Apparatus for digging post holes and erecting posts
11/03/1981CA1111870A1 Apron-conveyor connection for loading and conveying machines
11/03/1981CA1111869A1 Suction nozzle dredge head
10/1981
10/27/1981US4297074 Demountable interconnection
10/27/1981US4297073 Method and apparatus for withdrawing agricultural materials from storage
10/27/1981CA1111384A1 Linkage mechanism for digging implement
10/27/1981CA1111242A1 Angle and tilt implement assembly
10/20/1981US4295779 Straight arm loader
10/20/1981US4295287 Backhoe bucket quick coupler
10/20/1981US4295286 Support frame for motor, pump and suction tube of a suction dredger
10/20/1981CA1111006A2 Power shovel and crowd system therefor
10/15/1981WO1981002904A1 Depth monitoring system
10/15/1981WO1981002884A1 Load carrying stucture and method of manufacture therefor
10/13/1981USRE30769 Mounting arrangement for impact rock-breaker
10/13/1981US4294026 Elevating earth scraper