| Patents for E02D 7 - Methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds (4,652) |
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| 07/08/1992 | CN1017359B Concrete stressed plate screw pile and its shaping device |
| 07/08/1992 | CN1017358B Multi-branch load-bearing plate concrete pile, method and special device therefor |
| 06/25/1992 | WO1992010637A2 Tool for making holes in the ground |
| 06/03/1992 | CN2106193U Pore-creating soil disturbing machine |
| 05/20/1992 | EP0357752B1 Pile-driver with eccentric drive |
| 05/20/1992 | CN2104881U Pile-hammer |
| 05/20/1992 | CN1016725B Method and apparatus for placing hollow column in hard bottom of water |
| 05/20/1992 | CN1016724B Rotary combined chassis of moving foot for platform of pile driver |
| 04/28/1992 | US5107934 Pile driver |
| 04/28/1992 | CA1299366C Vibratory hammer/extractor |
| 04/14/1992 | US5104264 System for driving anchors in the ground |
| 04/08/1992 | EP0478619A1 Improvements in or relating to in situ pile formation |
| 04/08/1992 | CN1016198B Reverser of sleeve tube for anchor of pile driver |
| 04/02/1992 | DE4030723A1 Diesel cycle pile driver - has sliding external sleeves to adjust length of working stroke |
| 04/01/1992 | CN2100418U Construction equipment for vibration placing concrete piles |
| 03/24/1992 | US5097912 Staking system for concrete forms |
| 03/18/1992 | EP0362206B1 Hydraulic drive |
| 03/12/1992 | DE4028617A1 Hydraulic pile-driving hammer - has acceleration ram acting on striker weight in downwards direction on releasing lifting pressure |
| 03/11/1992 | EP0474070A1 Method and device for the insertion of a narrow partition or subterraneous curtain in the earth |
| 03/10/1992 | US5094303 Impact apparatus and process for the control of impact apparatus |
| 02/25/1992 | US5090485 Pile driving using a hydraulic actuator |
| 02/19/1992 | CN1058819A Drilling pile method construction technology |
| 02/18/1992 | US5088567 Ram device with eccentric drive |
| 02/18/1992 | US5088565 Vibratory pile driver |
| 02/18/1992 | US5088564 Method of and apparatus for driving piles |
| 02/12/1992 | EP0470297A1 Method and device for exchanging soil, especially next to roads and buildings |
| 02/11/1992 | US5086849 Apparatus useful in driving electrical ground rods |
| 01/16/1992 | DE4021278A1 Vibration drive with adjustable power e.g. for pile-driver - has two pairs of opposingly rotating masses with adjustable phase coupling |
| 12/26/1991 | WO1992000424A1 Apparatus and method for removing oil spots from a surface |
| 12/17/1991 | US5072584 Hydraulic drive with fluid cooling by-pass line |
| 12/11/1991 | EP0460755A1 Hydraulic pile-driver |
| 12/04/1991 | CN2089947U Pile-driver by sinking tube method with hammer driving |
| 12/03/1991 | CA1292755C Method and apparatus for making a slurry trench or wall in the soil |
| 11/28/1991 | DE4116060A1 Eccentric disc e.g. for vibrator - has cavities contg. discs of different density |
| 11/28/1991 | DE4017029A1 Hydro-rammer with striker body - incorporates axial piston pump to activate drop body lift cylinder |
| 11/25/1991 | CA2042499A1 Eccentric mass structure |
| 11/20/1991 | CN2089024U Pile-driver |
| 11/19/1991 | US5066168 Cylindrical foundation support drivable into ground with removable helix |
| 11/13/1991 | CN2088592U Pneumatic drill bit with electronic counter |
| 11/06/1991 | CN1014588B Hydraulic vibration device capable of eliminating automatically piston device |
| 10/22/1991 | CA1290950C Diesel type pile-driver |
| 10/03/1991 | WO1991014832A1 Device for driving rods used primarily for soil mechanics tests into the ground |
| 10/03/1991 | CA2078326A1 Device for driving rods used primarily for soil mechanics tests into the ground |
| 10/02/1991 | EP0449286A1 Pile driver |
| 10/02/1991 | CN1055028A Vibrating and rotating device |
| 09/25/1991 | EP0448462A1 Apparatus for driving rods into the ground, used in particular for ground mechanic testing |
| 09/25/1991 | CN2085378U Pile driver with improved structure |
| 09/04/1991 | CN1013779B Hydraulic static power pile press |
| 09/04/1991 | CN1013778B Forming technique and equipment of grouting pile with expanded head |
| 09/03/1991 | US5044831 Soil nailing |
| 08/20/1991 | US5040927 Pressure driver for pilings |
| 08/20/1991 | US5040926 Piling method |
| 08/14/1991 | DE4004115A1 Press for driving piles - has pile-gripping devices mounted on slide which can also be tilted |
| 08/08/1991 | WO1991011558A1 Method for consolidating railway roadbeds in general and apparatus for implementing the method |
| 07/25/1991 | WO1991008842A3 Vibration generator |
| 07/10/1991 | CN1052915A Multiple-top vibrator for sand lining pile |
| 07/09/1991 | US5030034 Soil pollution monitoring system and apparatus |
| 07/02/1991 | US5027908 Bearing apparatus and method for preloading bearings for rotary-vibratory drills |
| 06/27/1991 | WO1991008842A2 Vibration generator |
| 06/27/1991 | DE4000011A1 Single axis vibrator with frequency and amplitude control - uses four synchronised rotating off=centre weights and rugged control |
| 06/20/1991 | DE4035646A1 Driving support into ground - involves H=section member with drill auger in each recess |
| 06/14/1991 | CA2005611A1 Post driver |
| 06/12/1991 | CN2078765U Holder of cylindrical concrete pile |
| 06/05/1991 | CN2078342U Forced cooling jacket for diesel pile-driving hammer |
| 05/07/1991 | US5012873 Device for forcing a reflective highway post into the ground |
| 05/01/1991 | CN1051066A Hydraulic pressure step-type pile driver |
| 05/01/1991 | CN1051065A Multi-branch load-bearing plate concrete pile for strengthening basis |
| 05/01/1991 | CN1051064A Concrete stressed plate screw pile and its shaping device |
| 04/30/1991 | US5011331 Method and structural elements for construction underground garages |
| 04/18/1991 | DE3933174A1 System for driving individual piles of sheet piling - involves varying line of action of applied force |
| 04/10/1991 | CN2074777U Dual-vibration electric motor type pile fundation machine |
| 04/10/1991 | CN2074776U Weight-closing type pile grouting bottom hole expanding machine |
| 04/09/1991 | US5006015 Hydraulic jacking apparatus |
| 04/02/1991 | US5004375 Basement piles and basement construction method associated therewith |
| 03/28/1991 | DE3931366A1 Centrifugal-force-type vibrator for building sites - has cooling oil pump and cooler mounted on load isolating suspension system |
| 03/27/1991 | CN1050243A Tension balanced type static press pile |
| 03/26/1991 | US5002434 Method and apparatus for placing a hollow column in the hard bottom of a body of water in particular in a rock bottom |
| 03/26/1991 | US5002134 Rotary impacting apparatus |
| 03/21/1991 | DE3941641C1 Drive unit for foundation I beams - has ground drills within beams, retrieved after beams are properly installed |
| 03/05/1991 | US4997314 Pressure grouted pier and pier inserting tool |
| 02/20/1991 | EP0413422A1 Foundation construction method |
| 02/20/1991 | EP0413189A1 Control of the cable drum of a winch holding a free-falling ramming weight |
| 02/19/1991 | US4993500 Automatic drive hammer system and method for use thereof |
| 02/14/1991 | DE3926787A1 Pile driving and anchoring in ground - uses driven into ground, pile inserting into tube, tube removal, and anchoring substance injecting |
| 02/12/1991 | US4992002 Apparatus for forming in-ground concrete pilings |
| 02/06/1991 | CN2070773U High pressure water injuctor for pile static pressing machine |
| 01/16/1991 | CN1048574A Improved basement piles and basement construction method associated therewith |
| 01/15/1991 | US4984936 Stopper apparatus for rotary reaction force |
| 01/15/1991 | US4984640 Power post driver and hammer |
| 01/10/1991 | WO1991000394A1 Excavation apparatus and method |
| 12/27/1990 | WO1990015904A1 Improvements in or relating to in situ pile formation |
| 12/26/1990 | CN2068108U Large-scale prestressing force two-way combined dish type spring pile cap |
| 12/18/1990 | US4977965 Automatic drop hammer system |
| 12/18/1990 | CA1277975C Process to sink an in-ground pile, as well as boring machine and device used in said process |
| 12/05/1990 | CN1010701B Piling hammer |
| 11/29/1990 | DE4010955A1 Combined pile driver and drilling rig - has two telescopic parts actuated by hydraulic cylinder and elastomeric spring |
| 11/28/1990 | EP0399672A1 Soil nailing |
| 11/22/1990 | EP0398833A1 Apparatus enabling handling, interlocking, guiding, driving and connecting steel profiles or piles |
| 11/20/1990 | US4971479 Post driver |
| 11/01/1990 | WO1990012926A1 Template for installing photovoltaic panel assembly and method |