Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
08/1976
08/24/1976US3975842 Method and apparatus for dredging employing a transport fluid flowing in substantially closed recirculating course
08/17/1976US3975054 Undersea mining and separating vehicle having motor-powered water jet
08/17/1976US3974882 Cellular bulldozer blade with built-in support brackets
08/17/1976US3974881 Bulldozer blade mounting
08/17/1976US3974699 Angular position sensing and control system, apparatus and method
08/17/1976US3974580 All electric excavating and loading system
08/17/1976US3974579 Bucket tooth adapter support and load transfer means
08/10/1976US3973575 Mining concentrator
08/10/1976US3973512 Ship connecting structure
08/03/1976US3972566 Solids concentrator
08/03/1976US3972147 Bucket and closure member apparatus
08/03/1976US3972137 Dredging installation
08/03/1976US3972097 Tool for attachment to the dipper arm of an excavator
07/1976
07/27/1976US3971217 Reciprocatable devices
07/27/1976US3971215 Power shovel and crowd system therefor
07/27/1976US3971148 Dredge cutter head
07/27/1976US3971147 Torque-limited driving arrangement for scraper elevator
07/27/1976US3971146 Reentrant driving arrangement for scraper elevator
07/20/1976US3970154 Tool power system usable as substitute for vehicle propulsion
07/20/1976US3969835 Lockable suspension system for a scraper
07/20/1976US3969834 Airlift
07/13/1976US3968580 Bucket wheel assembly
07/13/1976US3968579 Apparatus for sediment dredging and ocean mineral gathering
07/06/1976US3967854 Endless bucket type excavator
07/06/1976US3967532 Forward-reverse valve for elevating scraper drive
07/06/1976US3967398 Detachable corner protector for work implements
07/06/1976US3967397 Rake attachment for back hoe and the like
07/06/1976US3967396 Undercutter with rotary trencher
07/06/1976US3967395 Crossing undercutter and switch undercutter mounted on tractor-type vehicle
07/06/1976US3967394 Automatic grab crane
07/06/1976US3967393 Underwater solids collecting apparatus
06/1976
06/29/1976US3966249 Rotator
06/29/1976US3966169 Rod and pipe pusher, puller device
06/29/1976US3966070 Mechanism for loader bucket or forklift mast on a material handling vehicle
06/29/1976US3966066 Hydraulic circuit
06/29/1976US3966065 Safety hold-down apparatus for tractor-mounted earth working implements
06/29/1976US3965999 Drilling grab for pile foundations and well boreholes
06/29/1976US3965587 Quick drop control for scrapers
06/22/1976US3964803 Self-aligning trunnion bearing assembly
06/22/1976US3964622 Quick change mounting bracket for loader arms
06/22/1976US3964287 Apparatus for forming a groove and back-up dam for welds
06/22/1976US3964182 Mechanical shovel
06/15/1976US3963135 Method of subordinating the orientation of a grab on a public works machine to the rotation of the turrest of this machine and to the machine
06/15/1976US3963134 Machine having a dual function jib
06/15/1976US3963132 Public works appliance
06/15/1976US3963131 Front-end skid steer loader
06/15/1976US3963086 Twin-engine overhung scraper having a leading arm suspension
06/15/1976US3962804 Scraper having forwardly swingable apron and full width pivoted striker
06/15/1976US3962803 Dredging head
06/08/1976US3961788 Bulldozer blade with improved tip and end bit
06/08/1976US3961670 Hydraulic control system for hydraulically operated road grader
06/08/1976US3961492 Machine for and method of stemming blast holes
06/01/1976US3960285 Material handling apparatus
06/01/1976US3959900 Implement assembly for hydraulically operated excavators
06/01/1976US3959899 Boom point assembly for an excavating machine
06/01/1976US3959898 Dredge ladder shock mounting arrangement
06/01/1976US3959897 Combination vibrating cutter head and crusher
06/01/1976US3959896 Self-loading scraper with pivotal floor panel
05/1976
05/25/1976US3958704 Pipe laying attachment
05/25/1976US3958465 Driving of a shaft with pendulum mount
05/25/1976US3958347 Drain ditch digging attachment for a back-hoe
05/25/1976US3958346 Multiple pumping chamber dredging apparatus
05/18/1976US3957130 Steering control for tractor grader attachments
05/18/1976US3957121 Automatic control system for earth-moving equipment
05/18/1976US3956835 Log skidder with implement mounted cable guide means
05/18/1976US3956834 Dredge ladder shock mounting arrangements
05/11/1976US3955695 Machine with an outrigger latching mechanism
05/11/1976US3955294 Elevator apparatus for towed deep-sea particle harvester
05/04/1976US3954196 Material handling apparatus
05/04/1976US3953932 Casino chip and method of making
05/04/1976US3953931 Excavator
04/1976
04/27/1976US3953145 Laser beam control system for earthworking or similar machines
04/27/1976US3952896 Hydraulic linkages
04/27/1976US3952890 Hydraulically operated shovels
04/27/1976US3952532 Underwater trenching and cable laying apparatus
04/27/1976US3952432 Mechanism for moving scraper bowl ejector blade
04/20/1976US3951559 Weldment for bulldozer blades
04/20/1976US3950866 Elevating-type scraper having forwardly swingable apron and full width pivoted striker
04/13/1976US3950246 Dredge units
04/13/1976US3950030 Underwater mining
04/13/1976US3949889 Front end loader
04/13/1976US3949498 Grab bucket for dredging sludge
04/13/1976US3949497 Releasable latching apparatus for a benthic grab
04/06/1976US3948398 Self-locking log skidding carriage
04/06/1976US3948329 Apparatus for effecting ground penetration of a ground engaging member
04/06/1976US3948049 Dual motor hydrostatic drive system
04/06/1976US3948024 Implement position control system
04/06/1976US3947981 Scraper bowl with hydraulic safety lock
04/06/1976US3947980 Process and apparatus for deep-sea particle harvesting
03/1976
03/30/1976US3946506 Trimmer type road construction apparatus with pivotally connected conveyor
03/23/1976US3945761 Fan disturbing sand at the bottom of a body of water so that it may be pumped up efficiently
03/23/1976US3945608 Anchoring means for earth tunneling devices
03/23/1976US3945519 Loading method
03/23/1976US3945138 Hydraulically controlled and driven bucket wheel dredge
03/23/1976US3945137 Brake for cushioning pendulum movements, especially for grab buckets of hydraulically operable earth dredges
03/16/1976US3944089 Loader
03/16/1976US3943644 Mining dredge having endless bucket conveyor and flexible guide train
03/09/1976US3943306 Electric loader with excessive unwind preventive means
03/09/1976US3942662 Vehicle having front end load supporting member
03/09/1976US3942271 Backhoe attachment