Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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10/17/2001 | CN1317624A Roofbolt |
10/16/2001 | US6302623 Roof bolting apparatus |
10/11/2001 | US20010028833 Fastening element |
10/11/2001 | US20010028828 Tubular anchor |
10/11/2001 | DE10017763A1 Tube anchor for mining/tunneling has a drill head and inner pistons to hold the mortar mass to be pressed out wholly through passage openings in a simple operation |
10/11/2001 | DE10017761A1 Tube anchor for mining/tunneling has a hollow anchor body with structured outer threading on the mantle surface to give a firm bond in cracked rock |
10/11/2001 | DE10017751A1 Gebirgsanker Rock bolts |
10/11/2001 | DE10017750A1 Gebirgsanker Rock bolts |
10/10/2001 | CA2340356A1 Tubular anchor |
09/27/2001 | WO2001071148A2 Guide for attachment to a roof bolter to allow for core drilling and method of coring |
09/27/2001 | CA2403468A1 Guide for attachment to a roof bolter to allow for core drilling |
09/19/2001 | CN2448925Y Expansion crack pressure type prestressed mud injection anchor |
09/04/2001 | US6283451 Hydraulic tensioner for mine roof support cables |
08/16/2001 | US20010013427 Jacket tube for a drilling and anchoring device |
08/09/2001 | WO2001057362A1 Capsule feed system |
08/07/2001 | US6270290 Tensionable cable bolt |
08/01/2001 | EP1119687A1 Jacket tube for a drilling and anchoring device |
06/27/2001 | CN2436652Y Anchor rod pretightening installation means |
06/20/2001 | EP0638705B1 Anchor bolt fixing capsule |
06/07/2001 | WO2001040628A1 Arrangement for feeding bonding material |
05/30/2001 | CN2432337Y Multifunctional prestressed composite anchoring-rod |
05/29/2001 | CA2148590C Method of securing an anchor with extrusion plastic molding in a solid wall substrate |
05/23/2001 | CN2431402Y Self-drilling hollow grouting anchoring-bolt |
05/23/2001 | CN2431401Y Hollow grouting anchoring-bolt |
05/17/2001 | DE10006197C1 Anchor monitor at mining works has a fixed register with integrated movement sensors at the anchor head with coupling wires to detect movements through shifts in the rock formation |
05/16/2001 | CN1295175A Installation of support legs for hydraulic bolted drilling machine |
04/25/2001 | EP0928360B1 Drill shank for a drill drive |
04/18/2001 | CN2426919Y Omnibearing multifunction combined roof bolting jumbo loader |
04/18/2001 | CN1064735C Mortar pail for reinforcing drilling anchoring part by chemical method |
04/10/2001 | US6214159 Curable epoxide composition and its use |
04/05/2001 | WO2001023711A1 Ground reinforcing method |
04/03/2001 | US6209279 Multilayer, traction element in the form of a loop |
03/28/2001 | EP1087063A1 Device for drilling and anchoring and method for installing ground anchors |
03/21/2001 | EP1085169A2 Cable rock bolt |
03/20/2001 | US6202765 Device having a filter, a filter vibrating means and a scraper used for sucking off drillings |
03/14/2001 | CN1287202A Vacuum grouting process and its sealed anchor cable |
03/14/2001 | CA2317981A1 Grit surface cable products |
02/20/2001 | US6189632 Machined drill steel |
02/20/2001 | US6189281 Injection anchor |
02/20/2001 | CA2302138A1 Unitary metal lag shield |
02/15/2001 | WO2001011194A1 Method for fixing a spreading anchor and spreading anchor |
02/15/2001 | WO2001011193A1 Arrangement for fixing rock bolts during rock reinforcement |
02/14/2001 | EP1075587A1 Device for a rock wall |
02/14/2001 | CN2419371Y Hollow anchor bolt shocker |
02/13/2001 | US6185886 Fixing element for reinforcement connection with a secondary action, especially for earthquake-resistant securement |
01/24/2001 | CN2416230Y Double-component liquid polyurethane anchoring agent cartridge and filling machine |
01/20/2001 | CA2313933A1 Mine roof truss with bent angle bolts |
01/17/2001 | CN2415159Y Polyurethane resin anchoring agent anchor rod |
01/10/2001 | CN2414193Y End grappled type anchor rod |
01/10/2001 | CN2414192Y Demounatable means for anchorage cable rigging |
01/03/2001 | EP1065006A1 Device for injecting mortar in a drilled hole |
12/28/2000 | WO2000078593A1 Multiple bolting platform improvements |
12/27/2000 | CN2412092Y Universal-purpose roofbolt body |
12/14/2000 | WO2000075489A1 Tube-formed rock bolt |
12/14/2000 | CA2371136A1 Tube-formed rock bolt |
11/22/2000 | EP1053386A1 Feed apparatus for feeding capsular cartridges into drilled hole |
11/16/2000 | WO2000068544A1 Device and method in connection with a rock wall |
11/15/2000 | CN2406064Y Anchor rod |
11/14/2000 | US6146056 Channel and bearing plate assembly |
11/14/2000 | US6145601 Method and device for boring holes |
10/24/2000 | US6135674 Roof bolt storage/transport apparatus |
10/12/2000 | WO2000060215A1 Method and apparatus for insertion of rock bolts |
10/12/2000 | WO2000060211A1 A drill rig for use in an underground mine |
10/03/2000 | US6125519 Setting tool |
09/08/2000 | WO2000052304A1 Friction bolt with flexible core |
08/29/2000 | US6109700 Mine roof bolting apparatus and method of using the same |
08/23/2000 | EP1029152A1 Cutting machine |
08/22/2000 | US6106200 Process and device for simultaneously drilling and lining a hole |
08/22/2000 | US6105684 Roof bolter or a roof bolt installation apparatus |
08/16/2000 | EP1027529A1 Apparatus for bending and cutting cable in rock bolting equipment |
08/08/2000 | CA2031448C Mortar composition |
07/26/2000 | CN2389176Y Sealed anchorage cable |
07/25/2000 | CA2102826C Composite anchor |
07/13/2000 | DE19809773C2 Teleskopierbare Lafette für ein Bohr- und/oder Ankersetzgerät Telescopic gun mount for a drilling and / or bolting device |
07/12/2000 | EP1017926A1 Injection device and injection method |
07/12/2000 | CN2387149Y Fast stretching appts. for roofbolt |
07/12/2000 | CN1054416C Omnibearing hydraulic jumbolter |
07/05/2000 | EP1015733A1 Anchor boring and setting device |
07/05/2000 | EP0960266A4 A cable bolt |
07/05/2000 | CN1054187C Anchor of composite form |
06/28/2000 | CN1258335A Injection device and injection method |
06/21/2000 | DE19956715A1 Machine for forming underground gallery has abrasive tools movable over work surface and anchor boring and setting devices pivotably supported on machine frame |
06/13/2000 | US6074134 Tensionable cable bolt |
05/03/2000 | EP0996813A1 An apparatus for positioning a resin cartridge |
04/18/2000 | US6050157 Setting tool for anchor rods of attachment anchors |
04/13/2000 | WO2000020724A1 Jacket tube for a drilling and anchoring device |
04/13/2000 | CA2346212A1 Jacket tube for a drilling and anchoring device |
04/12/2000 | CN2373550Y Hydraulic rockbolt drilling machine |
04/05/2000 | EP0990074A1 Process and device for boring holes |
03/28/2000 | CA2087424C Rock bolt system and method of bolting |
03/21/2000 | US6039509 Mine roof support apparatus and method |
03/16/2000 | CA2246652A1 The post drill system |
03/08/2000 | CN2367770Y Return-type air-dischargeable anchor-rod slip-casting joint |
03/07/2000 | US6033153 Rock bolt and method of installing a rock bolt |
02/29/2000 | US6030151 Method for reinforcing rock with a tendon |
02/16/2000 | CN2364217Y Ominbearing combined anchoring-bolt drilling setting machine |
02/02/2000 | EP0976873A1 Injection- or prestressed ground anchor |
01/27/2000 | DE19832669A1 Härtbare Epoxidmasse und deren Verwendung A curable epoxy compound and use thereof |
01/26/2000 | EP0974610A2 Curable epoxy compound and its use |
12/29/1999 | WO1999067506A1 Tunnel boring machinery |