| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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| 04/03/2007 | US7198435 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 03/28/2007 | CN1936196A Fiber-reinforced resin anchoring rod |
| 03/21/2007 | CN2881060Y Protective device of pneumatic anchor rod rope drilling machine |
| 03/14/2007 | CN2878676Y Integral jack-ups for anchor device |
| 03/14/2007 | CN1928317A Low tunnel rockbolt anchorage cable pneumatic drilling machine |
| 03/13/2007 | US7188684 Locking pin assembly for locking dog housing |
| 03/13/2007 | CA2452271C An improved apparatus for ground support |
| 03/07/2007 | EP1758718A1 Method and arrangement for automatic mixing of water and concrete for rock bolting |
| 03/07/2007 | CN1926306A Rockbolts made of high strength steel pipes and method of manufacturing thereof |
| 03/01/2007 | WO2007022613A1 Explosive-loaded ground anchor assembly |
| 02/22/2007 | WO2005111373A3 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 02/21/2007 | EP1490582B1 Method of localizing a hole drilled with a rock drilling machine |
| 02/15/2007 | US20070036614 Controlled expansion of rock bolt |
| 02/14/2007 | EP1751397A2 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 02/14/2007 | EP1530683B1 Fixing system and method |
| 02/08/2007 | WO2007014405A1 Device for boring and setting wall anchors |
| 02/07/2007 | EP1749143A1 Device for examining rotor drilled holes |
| 02/07/2007 | CN1908322A Anchor bolt containing framework in grouting and construction method thereof |
| 01/31/2007 | CN2863896Y Anchor cable body and apparatus for twisting the same |
| 01/31/2007 | CN1904311A Entry-driving machine front complement and hydraulic anchor rad drilling arm system |
| 01/25/2007 | DE4438997B4 Gebirgsanker Rock bolts |
| 01/17/2007 | CN1898456A Anchor device with an elastic expansion sleeve |
| 01/11/2007 | WO2007002987A1 Drill slide for rock drilling apparatus |
| 01/11/2007 | US20070009331 Reinforcing strip for supporting reinforced earth wall and its placement method |
| 01/11/2007 | US20070009330 Mine roof cable bolt and method |
| 01/11/2007 | CA2613824A1 Drill slide for rock drilling apparatus |
| 01/10/2007 | CN2856416Y Integrated anchor puller |
| 01/10/2007 | CN2856108Y Steel stranded conductor for prestressed concrete and mine anchorage cable |
| 01/09/2007 | CA2353736C Viscous and amine-cured chemical anchoring adhesive |
| 01/03/2007 | CN1888326A Two-purpose boring bar and hole-protecting casing soil anchor bolt boring technology |
| 01/02/2007 | US7156587 Reinforcing geotextile mat and embankment method using the same |
| 12/28/2006 | DE10336040B4 Adapter für einen selbstbohrenden Gebirgsanker Adapter for a self-drilling rock bolts |
| 12/27/2006 | CN1884795A Small-sized drilling, assembling and anchoring integrated machine |
| 12/27/2006 | CN1884785A Gantry type self-walking roofbolter |
| 12/27/2006 | CN1884372A Flame-proof antistatic resin anchoring agent |
| 12/20/2006 | EP1734206A1 Method for pre-attaching-fixing anchor bolt, and method and device for excavating anchor bolt burying hole |
| 12/20/2006 | CN1882763A Lock bolt made of steel pipe |
| 12/20/2006 | CN1880725A Sand-filling one-step-forming enlarged anchor pile construction method and device therefor |
| 12/17/2006 | CA2550181A1 Mine roof cable bolt and method |
| 12/14/2006 | WO2006133464A2 Rock bolt and rock bolt shank |
| 12/14/2006 | US20060278414 Device for rock bolting and for automized rock bolting and rock bolting |
| 12/14/2006 | DE10336043B4 Verbundanker Xings |
| 12/13/2006 | EP1438479B1 Liquid seal for wet roof bit |
| 12/13/2006 | CN1878930A Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt |
| 12/13/2006 | CN1876714A Antistatic resin anchoring agent |
| 12/13/2006 | CN1876713A Flame-retarded resin anchoring agent |
| 12/12/2006 | US7147406 Wall structure for retaining soils |
| 12/12/2006 | US7147404 Elongate element tensioning member |
| 12/07/2006 | WO2006060290A3 Locking dog and locking pin assembly for use therewith |
| 12/06/2006 | CN2844391Y Airborne roof bolter of fast tunneller in coal mine |
| 11/30/2006 | DE10334374B4 Auspressvorrichtung Squeezing |
| 11/23/2006 | US20060263152 Area earthquake defense system |
| 11/22/2006 | EP1724435A1 Rockbolts made of high strength steel pipes and method of manufacturing thereof |
| 11/16/2006 | WO2006119607A1 Explosive-activated ground anchor assembly |
| 11/09/2006 | WO2006118504A1 Device and method for installing a rock bolt and a rock bolt installation rig |
| 11/09/2006 | CA2603268A1 Device and method for installing a rock bolt and a rock bolt installation rig |
| 11/08/2006 | CN2835562Y Anchor rod hole reamer |
| 11/08/2006 | CN2835520Y Anchor rod boring directing device |
| 11/08/2006 | CN1858401A Coal mining process including prop type mining and prop recovery |
| 11/04/2006 | CA2506342A1 Yieldable cone bolt for use in small diameter bolt holes and method of installing the same |
| 11/01/2006 | CN2833107Y Hydraulic device for excavator and jumbolter |
| 10/11/2006 | CN2825953Y Tensioning device dedicated for three-dimensional anchor cable supporting |
| 10/11/2006 | CA2504058A1 Mine roof support system having torque indicating washer |
| 10/04/2006 | CN1840924A Torque nut having an injection molded breakaway insert |
| 09/28/2006 | WO2006099742A1 Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements |
| 09/27/2006 | CN2821161Y Hole enlarger |
| 09/27/2006 | CN1837503A Shell-reclaimable rock-reinforcing construction method and shelling type reinforcement body and reclaiming apparatus used thereby |
| 09/27/2006 | CN1277025C Anchor bolt constructing method in civil engineering |
| 09/21/2006 | DE102004002192B4 Verwendung von ethylenisch ungesättigten Isocyanatderivaten zur kovalenten Bindung von aktive Wasserstoffatome aufweisenden Verunreinigungen in härtbaren Massen The use of ethylenically unsaturated isocyanate derivatives for covalent binding of active hydrogen atoms-containing impurities in curable compositions |
| 09/14/2006 | US20060204342 Earthen retaining wall having flat soil reinforcing mats which may be variably spaced |
| 09/14/2006 | US20060204341 Method and device for rock bolting |
| 09/06/2006 | CN2813873Y Drilling rod of central placing roofbolt driller |
| 08/31/2006 | US20060193699 Construction work and method of production |
| 08/30/2006 | CN1272522C Chemical anchoring adhesive rope |
| 08/23/2006 | EP1693550A1 Lock bolt made of steel pipe |
| 08/23/2006 | CN2809009Y Expansion shell anchor rod for multifunctional stop-grouting plug |
| 08/09/2006 | EP1687510A1 Anchor device with an elastic expansion sleeve |
| 08/09/2006 | CN1268832C Spiral sharp-rib anchor rod and spiral rib drilling rod for drilling hole of spiral sharp-rib anchor rod |
| 08/03/2006 | US20060171783 Stabilized soil structures and facing elements for its construction |
| 08/02/2006 | CN2802165Y Concave spherical roofbolt nut |
| 08/02/2006 | CN1811131A Enlarged head roof bolt and its construction process |
| 08/01/2006 | CA2245121C Injection-anchor |
| 07/26/2006 | EP1682748A1 Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt |
| 07/25/2006 | US7080697 Method and device for drilling a hole and for securing an anchorage in a bore hole |
| 07/20/2006 | WO2006075688A1 Anchor fixing agent, anchor fixing agent ampule, and method for fixing anchor |
| 07/20/2006 | US20060161289 Drilling apparatus |
| 07/18/2006 | US7077195 Borehole closure |
| 07/13/2006 | DE10013539B4 Lipopolysaccharide aus Escherichia coli, Verfahren zu deren Herstellung und deren Verwendungen Lipopolysaccharides from Escherichia coli, to processes for their preparation and their uses |
| 07/12/2006 | CN1802488A Rockbolt |
| 07/11/2006 | US7073982 Point anchor coated mine roof bolt |
| 07/05/2006 | EP1381756B1 Method and device for drilling a hole and for securing an anchorage in a bore hole |
| 06/28/2006 | EP1407114A4 Rock-bolting apparatus and method |
| 06/28/2006 | EP1317602B1 Method for boring and placing bolts for imbedding adhesively and device for carrying out this method |
| 06/21/2006 | CN1791734A Controlled expansion of rock bolt |
| 06/15/2006 | WO2006061459A1 Method for casing drilling, drilling unit and adapter device |
| 06/14/2006 | EP1604323A4 Improvements in drilling apparatus |
| 06/14/2006 | DE102005010503B3 Sleeve for connecting rock drill to anchor bolt has two concentric, externally threaded sections on opposite sides, one of which has annular groove, into which flexible locking ring is inserted |
| 06/14/2006 | CN1788139A Method and device for rock bolting |
| 06/14/2006 | CN1788138A Device for rock bolting and for automized rock bolting and rock bolting method |
| 06/14/2006 | CN1259499C Prestressed anchor pin with sand solidified inner head and its anchoring method |