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