| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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| 06/13/2006 | US7059807 Elongated structural members for use in forming barrier walls |
| 06/08/2006 | WO2006060290A2 Locking dog and locking pin assembly for use therewith |
| 06/01/2006 | WO2006056058A1 Affixing an anchor in a drilled hole |
| 05/25/2006 | US20060110221 Stabilized soil structure and facing elements for its construction |
| 05/23/2006 | CA2419652C Removable deep set drop-in anchor |
| 05/17/2006 | CN2780971Y Piston rod push type roofbolt drilling machine |
| 05/16/2006 | US7044688 Roof bolts for use in mines, a method for their production and method for their installation |
| 05/16/2006 | US7044678 Connecting an anchoring rod to a drilling tool |
| 05/16/2006 | US7043989 Method and apparatus for testing installation quality in a grouted anchor system |
| 05/10/2006 | CN2779068Y Tunnel anchor spout three-dimensional metal mesh structure |
| 05/10/2006 | CN2779066Y Equipment capable of drilling coal bed for pressure relief and reinforcing supports of key positions |
| 05/10/2006 | CN1771380A Expandable injection bolt and grouting method using same |
| 05/04/2006 | US20060093438 Rock bolting system |
| 05/02/2006 | US7037046 Yielding strata bolt |
| 04/27/2006 | WO2006042530A1 Method for embedding rock anchors |
| 04/27/2006 | DE102005050929A1 Rock anchor embedding method for tunnel construction involves selecting hardenable and hardening plastics and mixing ratio of plastics for transport time to correspond to hardening time |
| 04/27/2006 | CA2584378A1 Method for embedding rock anchors |
| 04/25/2006 | US7033109 Ground anchor drainage apparatus and a method of installation of ground drainage apparatus |
| 04/25/2006 | US7032686 Drilling and bolting head for a bolting machine |
| 04/19/2006 | CN2773296Y High-efficient impacting drill with clockwise rotation |
| 04/18/2006 | CA2271655C Process and device for simultaneously drilling and lining a hole |
| 04/12/2006 | CN1759401A Improvements in drilling apparatus |
| 04/11/2006 | US7025538 Bonding anchor |
| 03/30/2006 | WO2006034208A1 An elongate element tensioning member |
| 03/16/2006 | DE102005022585A1 Boring header for ventilation lance, has connector opening and discharge opening, where fluid channel provided between connector opening and discharge opening runs through drill bit and boring shaft |
| 03/08/2006 | EP1234103B1 Arrangement for feeding bonding material |
| 03/08/2006 | CN2763522Y Liquid state accelerating agent adder for wet guniting bogie |
| 03/08/2006 | CN2763521Y Duoble-S type steel band for anchoring |
| 02/28/2006 | US7004686 Rock bolts with expandable element |
| 02/21/2006 | US7001109 Apparatus for ground support |
| 02/17/2006 | CA2516154A1 Wedge barrel for a twin cable mine roof bolt |
| 02/15/2006 | CN2758485Y Anchor spray support electric interlocking device |
| 02/15/2006 | CN2758438Y Special fine drill for hydraulic drill wagon |
| 02/15/2006 | CN1734057A Mounting method for anchor cable support apparatus |
| 02/15/2006 | CN1734056A Forced river crossing method for fully mechanized coal mining face |
| 02/14/2006 | CA2265593C A cable bolt |
| 02/09/2006 | DE102004026702B3 Vorrichtung zur Untersuchung von Ankerbohrlöchern An apparatus for investigating anchor boreholes |
| 02/08/2006 | EP1623094A1 Controlled expansion of rock bolt |
| 02/08/2006 | EP1623092A1 Device for rock bolting and for automized rock bolting and rock bolting |
| 02/08/2006 | CN1240911C Disjointable fixing apparatus of tension member and removal method of tension member |
| 02/07/2006 | US6994496 Roof bolts for use in mines, a method for their production and a method for their installation |
| 02/01/2006 | CN1727633A Drill pipe of the center emplacement type jumbolter and construction method |
| 01/31/2006 | US6991547 Roof bolts for use in mines, a method for their production and method for their installation |
| 01/26/2006 | US20060018721 Mine roof bolt anchoring system and method |
| 01/25/2006 | EP1619174A2 Two component mortar and its use |
| 01/19/2006 | WO2006006928A1 Arrangement for injecting and affixing a reinforcing or anchoring element in a rock wall |
| 01/19/2006 | US20060013657 Rock bolt anchor having concurrent chemical and mechanical anchoring means and method for using the same |
| 01/19/2006 | CA2572930A1 Arrangement for injecting and affixing a reinforcing or anchoring element in a rock wall |
| 01/18/2006 | EP1546508A4 Rock bolt post grouting apparatus |
| 01/18/2006 | CN2752421Y Multiple synchronous slip casting drilling pipe |
| 01/12/2006 | US20060008327 Device to secure lining sheet to pond border |
| 01/05/2006 | WO2006001743A1 Method and arrangement for automatic mixing of water and concrete for rock bolting |
| 01/05/2006 | US20060002769 Retaining wall system |
| 01/05/2006 | CA2563383A1 Method and arrangement for automatic mixing of water and concrete for rock bolting |
| 01/03/2006 | US6981559 Rock-bolting apparatus and method |
| 01/03/2006 | CA2455802C A rock stabilizing apparatus |
| 12/30/2005 | CA2820010A1 Yieldable rock fastener system and method |
| 12/30/2005 | CA2480729A1 Yieldable rock fastener system and method |
| 12/30/2005 | CA2472705A1 Yieldable rock fastener system and method |
| 12/30/2005 | CA2470212A1 Dual mechanical and resin anchor bolt |
| 12/15/2005 | DE102004023668A1 Befestigungselement Fastener |
| 12/14/2005 | EP1604323A2 Improvements in drilling apparatus |
| 12/08/2005 | WO2005116401A1 Device for examining rotor drilled holes |
| 12/08/2005 | WO2004099570A8 Controlled expansion of rock bolt |
| 12/08/2005 | DE19629211B4 Ankerbohrmaschine Anchor drill |
| 12/01/2005 | US20050265791 Wall structure for retaining soils |
| 12/01/2005 | US20050265790 Explosive-loaded ground anchor assembly |
| 11/26/2005 | CA2468359A1 Explosive-loaded ground anchor assembly |
| 11/24/2005 | WO2005111373A2 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 11/24/2005 | US20050260042 Reinforcing geotextile mat and embankment method using the same |
| 11/24/2005 | US20050260041 Fastening element |
| 11/24/2005 | DE102004021059A1 Protecting artificially produced cavities in rock involves filling cavities with compressible material and pressing in bores leading to cavities with cement suspension or compressible material |
| 11/24/2005 | CA2566245A1 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 11/17/2005 | US20050254906 Continuous chamber environment resistant retaining wall block and methods of use thereof |
| 11/10/2005 | WO2005106202A1 Rock bolt |
| 11/10/2005 | WO2005106201A1 Locking member, a nut break-out device and a nut break-out system containing same |
| 11/09/2005 | CN1693670A Three-anchor coupling supporting method for high stress tunnel break wall rock |
| 11/03/2005 | WO2005103450A1 Rock bolt tensioner |
| 10/19/2005 | EP1468167B1 Rock bolts with an expandable element |
| 10/19/2005 | CN2735003Y Self-traveling anchor cable machine |
| 10/19/2005 | CN2735002Y Self-traveling bolting machine |
| 10/18/2005 | US6955504 Attachment element |
| 10/12/2005 | CN2732973Y Multifunctional hydraulic jumbolter |
| 10/05/2005 | CN2731107Y Steel wire core false top guipure for downhole of coal mine |
| 09/29/2005 | DE10340394B4 Vorrichtung zur Befestigung von Verankerungsmitteln An apparatus for fastening anchoring means |
| 09/28/2005 | CN2729316Y Throw-injection apparatus for anchoring agent |
| 09/28/2005 | CN2729315Y Pressure dispersed cable |
| 09/21/2005 | CN2727376Y Percussion dual purpose jumbolter |
| 09/15/2005 | US20050201837 Truss shoe |
| 09/14/2005 | CN1667244A Full recoverable and reusable anchor bolt and its dismantling tool |
| 09/13/2005 | US6942301 Method for boring and placing bolts for imbedding adhesively and device for carrying out this method |
| 09/07/2005 | CN2723679Y Hydraulic anchor rod and anchor cable drilling rig |
| 09/01/2005 | DE102004006872A1 Friction tubing pipe e.g. for drilling into mountains and rocks, flexible and tubular with both ends closed and mouth of borehole has setting with drill bit leading into tubing inner body |
| 08/25/2005 | US20050187357 Diphenylmethane-4-isocyanato-4-urethanepropylene methacrylate derivatives as agents for covalently bonding impurities, plasticizers and or desensitizing agents; |
| 08/24/2005 | CN2720118Y Internal slurry-injection anchor rod of plastic expand housing external anchor |
| 08/18/2005 | DE102004002192A1 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 |
| 08/16/2005 | CA2383544C Apparatus and method for a yieldable tendon mine support |
| 08/11/2005 | WO2005073510A1 Expandable injection bolt and grouting method using same |
| 08/11/2005 | US20050175417 Roof bolts for use in mines, a method for their production and method for their installation |
| 07/28/2005 | WO2005068779A1 Lock bolt of high strength steel pipe and method of manufacturing the same |