| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
|---|
| 05/26/1992 | US5116164 Device to load reinforcement rods |
| 05/19/1992 | US5114279 Device for setting a rock bolt |
| 05/12/1992 | US5112160 Rock anchor |
| 05/09/1992 | CA2055080A1 Rock bolting |
| 04/07/1992 | CA1298498C Anchoring device, such as a rock anchor |
| 04/07/1992 | CA1298497C Rock anchor assembly for securing roadways and wall surfaces of open cuts and tunnels |
| 04/06/1992 | CA2052568A1 Roof bolt with paddle resin mixer and method for making the same |
| 04/02/1992 | WO1992005340A1 Device with reinforcement bolts used for insertion in drilled holes |
| 04/02/1992 | WO1992005339A1 A mining machine with roof bolting attachment, and roof bolting attachment therefor |
| 04/01/1992 | CN1059954A Mining machine |
| 03/24/1992 | US5098228 Destructible cartridge for securing anchor member |
| 02/26/1992 | EP0280705B1 Process and device for producing drilling holes from an angled position in relation to the drilling axes |
| 02/11/1992 | US5087102 Continuous mining machine |
| 02/05/1992 | EP0470061A2 Device for setting a rock bolt |
| 02/04/1992 | US5085546 Mounting assembly with an expansible anchor and a mounting tool |
| 02/04/1992 | CA1295155C Rock anchor |
| 01/23/1992 | WO1992001141A1 Drillable ground support bolt |
| 01/21/1992 | US5082399 Mine roof anchor having adjustable resin retaining washer and expansion shell assembly with friction reducing means |
| 01/18/1992 | WO1992001859A1 Rock bolt system and method of rock bolting |
| 01/14/1992 | US5080531 Epoxy, polyester, unsatd monomer |
| 01/08/1992 | CN1057698A Front beam direction controller for bolt-sprayed tunnel |
| 12/31/1991 | US5077324 Reactive set and multiple chamber cartridge and process for adhesive anchoring of fasteners in a base |
| 12/31/1991 | US5076734 Roof bolt with paddle resin mixer and method for making the same |
| 12/17/1991 | US5073065 Roof support |
| 12/17/1991 | US5073064 Method and apparatus for retorquing an installed mine roof bolt |
| 12/11/1991 | CN2090418U Rotating telescopic type anchoring-bolt borer |
| 12/03/1991 | US5069581 Process for anchoring of fasteners in a base |
| 12/03/1991 | US5069336 Container having components in sealable blind bores for anchoring fastening element |
| 11/14/1991 | WO1991017343A1 Method and metering equipment for feeding grout into a drill hole |
| 11/14/1991 | WO1991017342A1 Method of installing a rock bolt and a rock bolt |
| 11/12/1991 | US5064312 Delay stopper for a mine roof anchor and method of manufacture thereof |
| 11/06/1991 | EP0455582A2 Use of Water-settable compositions for fixing bolts and anchoring bars. |
| 10/31/1991 | WO1991014080A3 Point anchoring |
| 10/17/1991 | CA2039787A1 Roof bolt with plastic sleeve and mechanical anchor |
| 10/09/1991 | CN1055166A Fixing agent for anchor poles |
| 10/07/1991 | CA2039665A1 Barrier plug for dynamic rock stabilizing fixture |
| 10/07/1991 | CA2032665A1 Anchor device for securing rock bolts |
| 09/24/1991 | US5051038 Barrier plug for dynamic rock stabilizing fixture |
| 09/24/1991 | US5050934 Shearing machine with roof-bolt drilling and setting devices |
| 09/19/1991 | WO1991014080A2 Point anchoring |
| 08/27/1991 | CA1287990C Anchor bolt assembly |
| 08/27/1991 | CA1287989C Anchor bolt assembly |
| 07/23/1991 | US5033911 Barrier plug for a bore |
| 07/23/1991 | CA1286603C Method of stabilizing a rock structure and stabilizer therefor |
| 07/17/1991 | EP0437262A1 Method for preventive consolidation of the soil for underground minings |
| 07/16/1991 | CA1286129C Hardened material supported rock bolt and apparatus for installing same |
| 07/10/1991 | CN2080558U Monoblock electric and hydraulic bolt drill |
| 06/12/1991 | EP0432087A1 2-chambered cartridge |
| 06/12/1991 | EP0431302A2 Use of curable cycloaliphatic derivatives in putty compositions |
| 06/11/1991 | US5022791 Process, anchoring member, and clamping device for clamping a rod |
| 06/06/1991 | CA2031449A1 Cycloaliphatic derivatives for borehole-filling masses |
| 05/29/1991 | EP0333719B1 Reactive composition and multiple-chamber cartridge, and process for anchoring a fastening element to the fastening base |
| 05/21/1991 | US5016942 Anchor boring unit |
| 05/21/1991 | CA1284280C Versatile roof bolt assembly |
| 05/18/1991 | CA2029742A1 Roof bolt |
| 05/02/1991 | EP0424779A1 Self-propelled equipment to bore in tunnels |
| 05/02/1991 | EP0424768A1 Device to feed reinforcement rods |
| 05/02/1991 | EP0424733A1 Device to load reinforcement rods |
| 04/23/1991 | US5009549 Expansion assembly for mine roof bolts |
| 04/17/1991 | EP0422377A1 Mounting unit with expanding anchor and mounting tool |
| 04/16/1991 | US5007487 Method and apparatus for making drill holes under spatially restricted conditions |
| 04/02/1991 | US5003749 Grouting anchor to be inserted in a predrilled hole |
| 03/21/1991 | WO1991003622A1 Mixing element for rock bolt |
| 03/13/1991 | EP0417035A1 Anchor cartridge |
| 02/14/1991 | DE4024869A1 Hydraulic self-drilling rock anchor - consists of tube deformed along its length by involuted slot with central axial borehole for fluid |
| 01/29/1991 | CA1279662C Capsules of high alumina cement compositions |
| 01/16/1991 | CN2069482U Supporting frame of anchor truss |
| 01/15/1991 | US4984937 Rock bolt |
| 01/08/1991 | CA1278894C Filler-containing hardenable resin products |
| 12/25/1990 | US4979848 Drilling device |
| 12/19/1990 | CN2067754U Hanging anchoring-rod ingrated joist |
| 12/19/1990 | CN1010867B Method and device for feeding concrete into drill hole in concrete bolting of rock |
| 12/13/1990 | DE3919102A1 Method of reinforcing thin rock layers - involves use of hardened mortar filler pumped into hole under pressure |
| 12/11/1990 | US4976571 Anchor device for securing rock bolts |
| 12/04/1990 | US4974689 Drill hole filling method and apparatus |
| 11/22/1990 | EP0398838A1 Injection tube with anchor effect |
| 11/14/1990 | CN2065667U Grouting anchoring-bolt and return-stop valve |
| 11/06/1990 | US4968185 For use as an anchor in a structural material |
| 10/23/1990 | CA1275360C Driver for reinforcement bar chemical anchor |
| 10/18/1990 | DE3912365A1 Bore hole closer plug - has flexible walls to adapt to seal different size bore holes |
| 10/17/1990 | CN2063977U Seam pipe type anchoring-bolt setting machine |
| 10/09/1990 | US4961468 Multi-function control actuating mechanism |
| 10/03/1990 | CN2063168U Coiled anchoring agent with cement base chemical |
| 10/03/1990 | CN1009850B Device for storing wire in wire bolting means |
| 09/26/1990 | EP0389412A2 Destructible anchoring cartridge |
| 09/04/1990 | US4953914 Mining machine with roof bolting apparatus |
| 08/29/1990 | EP0384327A2 Injection anchor for insertion into a predrilled hole |
| 08/22/1990 | EP0383723A1 Method, anchoring element and tensioning device for tensioning a rod |
| 08/07/1990 | US4946314 Rock anchor |
| 08/06/1990 | CA2008982A1 Method, anchoring element and device for tensioning a rod |
| 08/02/1990 | DE3902727A1 Glass-fibre-reinforced, resin-bedded roof bolt |
| 08/01/1990 | CN1009019B Method of and device for guiding wire in wire bolting of rock |
| 07/31/1990 | US4944819 Foamable mortar; used in bore holes |
| 07/25/1990 | EP0379187A1 Method of pulling outer tubings |
| 07/10/1990 | US4940365 Mine roof support plate bolt |
| 07/04/1990 | EP0376925A2 Rock anchor element |
| 06/26/1990 | CA1270670A1 Anchoring system for the tension member of an anchor, particularly a rock anchor |
| 06/20/1990 | EP0374130A2 Rock anchoring |
| 06/12/1990 | CA1270236A1 Device for storing a wire in a wire bolting means |
| 06/12/1990 | CA1270129A1 Tension member for a rock anchor or the like |