| Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
|---|
| 04/05/2006 | EP1583888A4 A yielding rock bolt |
| 04/05/2006 | CN2769521Y Inserting rockbolt force moment nut |
| 04/05/2006 | CN1756889A Aiguille blade assembly, drill pipe containing same and aiguille blade for self-drilling pole or anchor shaft |
| 03/30/2006 | US20060067795 Elongate element tensioning member |
| 03/22/2006 | CN2766041Y Rockbolt packer |
| 03/22/2006 | CN2766040Y Spherical nut and spherical pallet |
| 03/15/2006 | CN2764936Y Rod body full length recovering resin metal rockbolt |
| 03/13/2006 | CA2518290A1 Apparatus and method for manufacturing a rock bolt |
| 03/08/2006 | EP1234103B1 Arrangement for feeding bonding material |
| 03/08/2006 | CN2763524Y Recovery type anchor bar |
| 03/08/2006 | CN2763523Y Draw-rod type combined anchor bar |
| 03/02/2006 | US20060045630 Two-component mortar composition and its use |
| 03/02/2006 | DE112004000454T5 Bohrmeißelanordnung, Bohrstange mit der Bohrmeißelanordnung und Bohrerspitze zum Selbstbohren von Gestein oder Ankerbolzen A bit assembly, drill rod with the drill bit assembly and drill bit for self drilling rock bolt or anchor |
| 03/01/2006 | EP1629178A1 Rockbolt |
| 03/01/2006 | CN2761846Y Hollow slurry filling anchor rod capable of measuring length |
| 03/01/2006 | CN2761845Y Wedge anchor rod |
| 02/28/2006 | US7004686 Rock bolts with expandable element |
| 02/22/2006 | CN2760229Y Leak-proof intelligent anchor rod |
| 02/21/2006 | US7001109 Apparatus for ground support |
| 02/17/2006 | CA2516154A1 Wedge barrel for a twin cable mine roof bolt |
| 02/14/2006 | CA2265593C A cable bolt |
| 02/08/2006 | EP1623095A1 Expandable rock bolt and rock bolting system |
| 02/08/2006 | EP1623094A1 Controlled expansion of rock bolt |
| 02/08/2006 | EP1623093A1 Method and device for rock bolting |
| 02/08/2006 | CN2756829Y Full glass fiber reinforced plastic anchor rod |
| 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 | CN2755284Y Built-in expansion anchor on top |
| 02/01/2006 | CN1727435A Cement dipping liquid in use for anchor pole made from glass fiber reinforced plastic |
| 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 | CN1726335A Frictional mining bolt |
| 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 |
| 01/17/2006 | US6986623 Method and apparatus for anchoring a mine roof bolt |
| 01/11/2006 | EP1397580B1 Rock bolt and method of use |
| 01/10/2006 | US6984091 Yielding rock bolt |
| 01/04/2006 | CN1234956C Self drilling roll bolt |
| 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 |
| 12/28/2005 | CN2748640Y Resin rockbolt with novelly structured metal nut |
| 12/28/2005 | CN1712670A Slip casting roof bolt with anticorrosive casing pipe |
| 12/21/2005 | CN1710253A Underground engineering slip casing anchorge cable |
| 12/21/2005 | CN1232469C Anchoring agent made from inorganic material and preparation method |
| 12/20/2005 | CA2267163C A method of pre-stressing a tendon |
| 12/15/2005 | WO2005119009A1 Expandable rock anchor |
| 12/15/2005 | DE102004023668A1 Befestigungselement Fastener |
| 12/08/2005 | WO2004099570A8 Controlled expansion of rock bolt |
| 12/01/2005 | WO2005113939A1 Rock bolting method and rock bolt |
| 12/01/2005 | US20050265790 Explosive-loaded ground anchor assembly |
| 12/01/2005 | CA2564291A1 Rock bolting method and rock bolt |
| 11/26/2005 | CA2468359A1 Explosive-loaded ground anchor assembly |
| 11/24/2005 | US20050260041 Fastening element |
| 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 |
| 11/03/2005 | WO2005103547A1 Tube connector and device for production of a tube connector |
| 11/03/2005 | WO2005103450A1 Rock bolt tensioner |
| 11/02/2005 | CN2737950Y Retrievable rockbolt |
| 11/02/2005 | CN2737949Y Flexiable injection rockbolt |
| 10/25/2005 | US6957931 Roof bolt bearing plate and method for an underground mine |
| 10/20/2005 | US20050231377 Instrumented rock bolt, data logger and user interface system |
| 10/19/2005 | EP1468167B1 Rock bolts with an expandable element |
| 10/19/2005 | CN2735007Y Plastic anchoring casing for anchor rod |
| 10/19/2005 | CN2735006Y Recoverable plastic conical cylinder for anchor rod |
| 10/19/2005 | CN2735005Y Plastic anchoring pipe sleeve for anchor rod |
| 10/19/2005 | CN2735004Y Plastic anchoring sleeve |
| 10/18/2005 | US6955504 Attachment element |
| 10/18/2005 | CA2491263C A rock bolt anchor having concurrent chemical and mechanical anchoring means and method for using the same |
| 10/12/2005 | EP1583888A1 A yielding rock bolt |
| 10/05/2005 | CN2731106Y Support and protection system for anchor shell |
| 09/29/2005 | WO2005090753A1 Method and device for producing pre-tensioned anchorings |
| 09/29/2005 | CA2559457A1 Method and device for producing pre-tensioned anchorings |
| 09/22/2005 | US20050207851 Rock bolt |
| 09/22/2005 | DE102004020065B3 Connecting system for pipes used in pipe screens for supporting roofs during tunneling comprises sleeve formed on one pipe end, end of other pipe plugging into this and sleeve being crimped into preformed peripheral grooves on it |
| 09/21/2005 | CN2727400Y Resin anchorage bar with plastic nuts of new structure |
| 09/21/2005 | CN2727293Y Sandwich composite reinforced bar profile |
| 09/15/2005 | WO2005085582A1 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting. |
| 09/15/2005 | CA2554598A1 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting |
| 09/09/2005 | WO2005059309A3 Coated mining bolt |
| 09/07/2005 | CN2723682Y Anchor rope support device |
| 09/07/2005 | CN2723681Y Inner anchor external injection type anchor rod |
| 09/07/2005 | CN2723680Y Safety support anchor rod with screw |
| 09/07/2005 | CN1664310A Control method for coal mine detached island coal pillar rock burst |
| 09/01/2005 | US20050191138 Method and device for stabilizing a cavity excavated in underground construction |
| 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 |
| 08/30/2005 | US6935811 Frictional mining bolt |
| 08/24/2005 | CN2720118Y Internal slurry-injection anchor rod of plastic expand housing external anchor |
| 08/17/2005 | EP1564369A1 Method and device for stabilising an underground broken out cavity |
| 08/16/2005 | US6929424 Rock bolt and method of use |
| 08/16/2005 | US6929330 Method and system for mining hydrocarbon-containing materials |
| 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 |
| 08/04/2005 | WO2004074636A3 Radially deformed anchorage bolt |
| 08/03/2005 | CN2714807Y Glass fiber reinforced plastic anchor rod of resin anchor rod |