| Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930) |
|---|
| 07/12/1977 | US4034876 Boom construction and method for making same |
| 07/12/1977 | US4034874 Hose supporting linkage |
| 07/12/1977 | US4034815 Blade lift float circuit for motor graders |
| 07/12/1977 | US4034785 Delimbing attachment for tree harvesting apparatus |
| 07/12/1977 | US4034490 Automatic depth control for endless chain type trencher |
| 07/05/1977 | US4033469 Front end loader and method of mounting same on tractor |
| 07/05/1977 | US4033449 Apparatus for handling bulk materials |
| 06/28/1977 | US4032025 Backhoe bucket tilt |
| 06/28/1977 | US4032015 Bucket cleaner and control for a digging machine |
| 06/28/1977 | US4031973 Placer mining tool |
| 06/28/1977 | US4031968 Cushioned push dozer device |
| 06/28/1977 | US4031967 Motor grader with spherical bearing mounting for blade tilt cylinders |
| 06/28/1977 | US4031966 Operating and shock cylinder assembly for vehicle underbody scrapers and the like |
| 06/21/1977 | US4030626 Clamp for scoop loader |
| 06/21/1977 | US4030624 Loader vehicles |
| 06/21/1977 | US4030623 Hydraulic circuitry for an excavator |
| 06/21/1977 | US4030566 Hydraulic system for rock breaker |
| 06/21/1977 | US4030435 Hopper valve module for hopper dredge |
| 06/21/1977 | US4030217 Two wheel excavating and loading system |
| 06/21/1977 | US4030216 Method of and apparatus for underwater hydraulic conveying, as for ocean mining and the like, and continued transport of material in controlled floating containers |
| 06/14/1977 | US4029226 Linkage support system for material handling unit |
| 06/14/1977 | US4029225 Boom-stick adapter for two-piece boom |
| 06/14/1977 | US4029157 Material pushing vehicle having pivotal blade portion |
| 06/14/1977 | US4028822 Manually operable depth control for trenchers |
| 06/14/1977 | US4028820 Hydraulic system for vehicle mounted snowplow blade |
| 06/07/1977 | US4028240 Method and apparatus for treating sumps |
| 06/07/1977 | US4028009 Jet pump |
| 06/07/1977 | US4027407 Jet flow alternator |
| 05/31/1977 | US4026604 Ground excavating apparatus |
| 05/31/1977 | US4026428 Stabilizer attachment for material handling implement |
| 05/31/1977 | US4026380 Tilting operator platform safety lock |
| 05/31/1977 | US4026376 Underwater tractor and intake and exhaust means therefor |
| 05/31/1977 | US4026368 Vehicle with implement connected thereto by stabilizing linkage |
| 05/31/1977 | US4026049 Articulating dredge |
| 05/24/1977 | US4024974 Detent release means for loader bucket positioners |
| 05/24/1977 | US4024969 Multiple cable suspension assembly |
| 05/24/1977 | US4024922 Blade attachment with built-in air vent |
| 05/24/1977 | US4024823 Automatic blade angle controller system |
| 05/24/1977 | US4024796 Float control electrical circuit for a blade |
| 05/24/1977 | US4024655 Cutting and feeding mechanism for suction inlet |
| 05/17/1977 | US4023782 Tuyere stock and compensator joint therefore |
| 05/17/1977 | US4023625 Structure mounting a bulldozer assembly to a vehicle |
| 05/17/1977 | US4023624 Blade angle adjustment mechanism for bulldozer or the like |
| 05/17/1977 | US4023364 Swing flow supplemental travel for an excavator |
| 05/17/1977 | US4023288 Backhoe compactor/scraper apparatus and method |
| 05/17/1977 | US4023285 Four-wheeled elevating scraper |
| 05/10/1977 | US4022339 Fluid operated apparatus |
| 05/10/1977 | US4022282 Method for reclaiming strip-mined land |
| 05/10/1977 | US4022028 Submarine pipe trenching apparatus |
| 05/03/1977 | USRE29197 Shovel loaders |
| 05/03/1977 | US4020963 Linkage means for bucket positioner system |
| 05/03/1977 | US4020952 Articulated stand apparatus for laying and recovering pipeline |
| 05/03/1977 | US4020745 Power slide mechanism |
| 05/03/1977 | US4020574 Pivoted scraper ejector with hydraulic means to provide level spread |
| 05/03/1977 | US4020573 Method and device for sucking up a solid substance from a stock |
| 04/26/1977 | US4019588 Tilting means for bulldozer blades |
| 04/26/1977 | US4019587 Work vehicle having variable curvature blade assembly |
| 04/26/1977 | US4019585 Combined automatic and manual hydraulic control for motor grader blade |
| 04/19/1977 | US4018483 Process and apparatus for dislodging and conveying material from a surface with a positive pressure fluid stream |
| 04/19/1977 | US4018452 Tractor-scraper units with push-pull coupling including two-way shock absorbers |
| 04/19/1977 | US4018352 Anti-rollback mechanism for material handling implement |
| 04/19/1977 | US4018136 Hydraulic apparatus for controlling movement of a member under loading |
| 04/12/1977 | US4017114 Multidirectional grapple |
| 04/12/1977 | US4016936 Motor grader having improved guide shoes for circle-mounted implement |
| 04/05/1977 | US4015730 Adjustable boom for material handling implement |
| 04/05/1977 | US4015729 Automatic control system for backhoe |
| 04/05/1977 | US4015728 Material handling apparatus |
| 04/05/1977 | US4015669 Circle mounting bar and circle assembly for a motor grader |
| 04/05/1977 | US4015482 Control system for power train and auxiliary equipment driven from a common prime mover |
| 04/05/1977 | US4015348 Ripper assembly for tractor drawn scraper |
| 03/22/1977 | US4013307 Dual position stabilizer |
| 03/22/1977 | US4013182 Detachable coupling system |
| 03/22/1977 | US4013180 Device for the removal of bulk material from bulk material dumps |
| 03/22/1977 | US4013132 Device for supporting bulldozer blade |
| 03/15/1977 | US4011959 Bucket-positioner circuit with "no detent" operation |
| 03/15/1977 | US4011957 Folding ejector linkage for material handling machinery |
| 03/15/1977 | US4011886 Sleeve valve |
| 03/15/1977 | US4011670 Roller mounting |
| 03/15/1977 | US4011669 Power scraper with apron on a movable pivot axis |
| 03/08/1977 | US4010561 Earth scraper with router bit |
| 03/08/1977 | US4010560 Deep sea mining apparatus and method |
| 03/01/1977 | US4009758 Blade control apparatus of a motor grader including wand vibration damping element |
| 03/01/1977 | US4009643 Hydraulic motor for rotating the bucket of an excavating machine |
| 03/01/1977 | US4009531 Reversible direction bucket wheels |
| 03/01/1977 | US4009530 Apron lift linkage |
| 03/01/1977 | US4009529 Grading blade for a toothed shovel |
| 02/22/1977 | US4008771 Two-way bulldozer mechanism |
| 02/15/1977 | US4007845 Swing mechanism |
| 02/15/1977 | US4007550 Replaceable corner tooth assembly |
| 02/08/1977 | US4006834 Tilt linkage for loader buckets |
| 02/08/1977 | US4006832 Bucket door snubber |
| 02/08/1977 | US4006782 Two-way bulldozer mechanism |
| 02/08/1977 | US4006544 Replaceable cutting edge assembly |
| 02/01/1977 | US4005944 Tamping apparatus |
| 02/01/1977 | US4005895 Rotational grapple |
| 02/01/1977 | US4005755 Machine for rock removal and soil cultivation |
| 01/25/1977 | US4004641 Motor grader drawbar assembly with safety clutch mechanism |
| 01/25/1977 | US4004359 Mouthpiece for a suction dredger |
| 01/25/1977 | US4004358 Method and apparatus for dredging of ground, particularly sand |
| 01/25/1977 | US4004357 Two stroke dredging plant |