136177 ⎘
Anchoring-bolts for roof, floor in galleries or longwall working , or shaft-lining protection characterised by constructional features of the bolts Bolts held in the borehole by friction all along their length, without additional fixing means
ROCK BOLT INSTALLATION
#2Dynamic Rockbolt
#3High Capacity Rock Bolt
#4Anchor Arrangement
#5DOUBLE-WEDGE ROCK BOLT
#6ANCHOR BOLT WITH ANTI PROJECTION MECHANISM
#7Drilling assembly for inserting a rock bolt
#8Friction stabilizer
#9Light weight rockbolt components and a non-metallic rockbolt
#10Self-drilling hybrid rock anchor
#11Reaming and self-rotating anchor rod and using method thereof
#12Friction rock bolt
#13Rock bolt assembly with failure arrestor
#14Friction rock bolt
#15Friction bolt
#16Rock bolt
#17METHOD AND SYSTEM OF COAL MINE ROOF STABILIZATION
#18Friction bolt
#19Sectional modular large-deformation-resistant impact-resistant composite rock bolt and its assembling method
#20Corrosion Resistant Expandable Bolt
#21Improved Drilling Assembly Comprising a Friction Bolt
#22Drill Bit for Use with a Friction Bolt
#23Method of supporting a rock wall
#24ROCK BOLT
#25ROCK BOLT WITH AN INTEGRALLY FORMED WEDGE FORMATION AND A METHOD OF MANUFACTURING SAME
#26Friction bolt
#27Method and system of coal mine roof stabilization
#28Friction bolt
#29Friction bolt assembly
#30MULTIPLE-POINT ANCHORED ROCK BOLT
#31Tensionable threaded rebar bolt
#32Connection means with shape memory
#33Expandable Bolt with Shielded Tip
#34Method and rock bolting rig for installation of a rock bolt
#35SELF-DRILLING FRICTION BOLT
#36Mine roof bolt assembly
#37Anchor tendon with selectively deformable portions
#38Yielding Spiral Bolt Appendage for a Rock Bolt
#39Friction bolt
#40FRICTION STABILISER
#41Friction Bolt Assembly
#42Expandable bolt with shielded tip
#43Yielding bolt and assembly
#44Device for expanding and/or evacuating parts of anchors
#45Method of setting a self-drilling, chemically anchorable fastening element and a self-drilling chemically anchorable fastening element
#46Injection bolt with a fixed static mixer
#47One-piece drill bit for single-pass anchor bolting and single pass drilling apparatus
#48Mine roof bolt with resin control surface
#49Bolt assembly
#50Rockbolt of high strength steel pipe and method of manufacturing the same
#51Friction rock stabilizer with point anchor
#52Rock bolt with grout flow geometry
#53Rock bolt
#54Friction stabilizer with tabs
#55Rockbolts made of steel pipes
#56Anchor device with an elastic expansion sleeve
#57Bearing plate having tab
#58Expandable rock bolt and rock bolting system
#59Cable bulbing apparatus and method for forming bulbs in a cable bolt
#60Instrumented rock bolt, data logger and user interface system
#61Friction stabilizer with tabs
#62Friction stabilizer with tabs
#63Friction stabilizer pull tester and method