| Patents for E21D 17 - Caps for supporting mine roofs (547) |
|---|
| 01/30/2013 | CN102900445A Temporary supporting device for anchor net roadway |
| 01/23/2013 | CN202690092U Temporary support suspension device |
| 01/23/2013 | CN202690091U Fore poling bar type temporary support device used in anchor bolt support roadway construction |
| 01/23/2013 | CN202690090U Forepoling bar type temporary supporting device for anchor-rod supported roadway construction |
| 01/23/2013 | CN202690089U Forepoling bar type temporary support device used in anchor bolt support roadway construction |
| 01/23/2013 | CN102889089A Single-column type advance support device of blasting work surface |
| 01/16/2013 | CN202673308U Mine supporting car |
| 01/02/2013 | CN102061921B Down-dip mining method of shaped hydraulic bracket on long-wall working surface in direction of large dip angle coal bed |
| 12/26/2012 | CN202628149U Filling hydraulic support |
| 12/12/2012 | CN202596751U Front canopy advance support using device |
| 12/05/2012 | CN202578725U Pin wedge-type metal articulated roof beam shared by mining brackets |
| 11/28/2012 | CN202560266U Anchor rod joist |
| 11/28/2012 | CN202560265U Joist of supporting anchor rod |
| 11/28/2012 | CN101943011B Constant-strength high-convex-ladder-shaped coal mine underground deep supporting device |
| 11/21/2012 | CN202544875U Front canopy type temporary supporting suspension device for anchor pole supporting tunnel construction |
| 11/21/2012 | CN202544874U Front canopy type temporary supporting device for anchor pole supporting tunnel construction |
| 11/21/2012 | CN202544873U Front canopy type temporary supporting suspension device for anchor pole supporting tunnel construction |
| 11/14/2012 | CN202531199U Telescopic supporting beam of gateway on full-mechanized caving mining face |
| 10/24/2012 | CN102155248B Method for supporting laneway below coal pillar |
| 10/17/2012 | CN102733833A Supercharging outburst prevention device for tunneling surface |
| 10/17/2012 | CN102733831A Forepoling bar forpoling construction method and device used |
| 10/17/2012 | CN102155245B Integral ejecting beam hydraulic bracket comprising telescopic beam |
| 10/10/2012 | CN202483598U Forepoling bar fixture for metal support roadway |
| 10/03/2012 | CN102704962A Shed upper beam device of I-beam shed for coal mine laneway |
| 10/03/2012 | CN102003188B Method for supporting triangular area in coal mine support-dismantling process |
| 09/26/2012 | CN202451182U Advance maintenance clipping beam for U-shaped steel support |
| 09/19/2012 | CN102678141A Retaining and protecting vehicle for coal mines |
| 09/12/2012 | CN202431286U Hydraulic bracket and top beam thereof |
| 09/05/2012 | CN202417544U Downhole back plate made of polyurethane composite material |
| 09/05/2012 | CN102003192B Connecting locating device |
| 08/29/2012 | CN202402050U Shielding type hydraulic support |
| 08/29/2012 | CN202402049U Coal mine tunnel supporting beam |
| 08/23/2012 | US20120213598 Roof support sheet handling for underground mines |
| 08/15/2012 | CN202381107U Articulated roof beam type forepoling bar |
| 08/15/2012 | CN202381106U Front canopy support device for fully mechanized mining face head-on unsupported area |
| 08/08/2012 | CN202370553U Slide moving type front detection support and protection device |
| 08/01/2012 | CN202360115U U-shaped steel shed supporting Pi-shaped forepoling bar fixing device |
| 08/01/2012 | CN202360114U Pi-type forepoling bar fixing device for H-shaped steel shed supports |
| 07/11/2012 | CN202325572U 双x型钢筋托梁 Dual x-type steel joists |
| 07/11/2012 | CN202325571U 掘进工作面临时支护装置 Supporting device when faced with tunneling work |
| 07/11/2012 | CN202325562U 智能防冲击支架装置 Intelligent anti-shock bracket arrangement |
| 07/11/2012 | CN102562103A Telescopic strut capable of preventing U-shaped steel from deforming |
| 07/11/2012 | CN102562102A Composite telescopic beam mechanism |
| 07/05/2012 | US20120170981 Hydraulic circuit for longwall support |
| 07/04/2012 | CN202300430U 适应硬顶板条件的液压支架 To adapt to the conditions of hard roof hydraulic support |
| 06/27/2012 | CN102518459A High-strength anchor rope steel channel beam capable of yielding automatically for deep well coal roadways |
| 06/27/2012 | CN102518458A Structure of top beam part of underground bus stop and construction method thereof |
| 06/13/2012 | CN202273694U 一种新型的综采支架伸缩梁 A new mechanized mining bracket telescopic beam |
| 06/06/2012 | CN202266282U 矿用巷道支护护板 Mine roadway guard |
| 06/06/2012 | CN202266281U 一种掘进工作面锚杆支护、锚网喷支护用前探梁悬挂装置 A Heading Face bolting, anchoring the net shotcrete support beam suspension with probe |
| 06/06/2012 | CN202266280U 一种用于u型棚支护的可缩撑梁 A u-type roof support beams can be reduced support |
| 05/30/2012 | CN202250118U Open type front canopy calipers |
| 05/30/2012 | CN202250117U Telescopic beam mechanism |
| 05/30/2012 | CN202250116U Wood crib structure of underground temporary support |
| 05/23/2012 | CN102472102A Longwall mining roof supports |
| 05/16/2012 | EP2452046A1 Longwall mining roof supports |
| 05/16/2012 | CN202220612U Novel front canopy for anchor net supporting roadway |
| 05/09/2012 | CN202215266U L-shaped self-moving beam for withdrawing hydraulic shoring frames under mine pit |
| 05/09/2012 | CN102444413A Hydraulic support and top beam thereof |
| 04/26/2012 | WO2012051693A1 Intrinsically safe backup power supply for combustible environments |
| 04/26/2012 | CA2814876A1 Intrinsically safe backup power supply for combustible environments |
| 04/25/2012 | CN102425431A 一种极近距离煤层开采巷道布置方法 A very close coal mining roadway layout method |
| 04/18/2012 | CN202194675U 一种锁紧装置及应用其的顶梁 One kind of locking device and the application of its top beam |
| 04/04/2012 | CN102400695A 智能防冲击支架装置 Intelligent anti-shock stent device |
| 03/21/2012 | CN202170801U 一种液压支架及其伸缩梁装置、综采工作面 A hydraulic bracket and telescoping beam device, mechanized mining face |
| 01/25/2012 | CN202125303U Box-type support beam |
| 01/18/2012 | CN202117693U U-shaped ceiling pull rod |
| 01/04/2012 | CN102305090A Telescopic girder mechanism |
| 12/21/2011 | CN202081899U 一种新型端头掩护支架 A new tip Shield Support |
| 12/14/2011 | CN202073583U 前后门型架迈步式锚护一体机 Moving around the gantry anchor retaining one machine |
| 12/14/2011 | CN202073579U 锻造柱窝及液压支架 Nest and forging hydraulic support column |
| 12/14/2011 | CN101747524B 一种用于煤岩加固的材料及其制备工艺以及该材料的用途 Use of the material and its preparation process for coal and rock reinforcement of the material |
| 12/07/2011 | CN202064979U 半刚性异型梁锚索桁架巷道支护系统 Semi-rigid anchor shaped truss girder roadway system |
| 12/07/2011 | CN202064976U 一种机载式掘进工作面迎头临时支护装置 Heading Face Airborne formula interim head support device |
| 12/07/2011 | CN202064975U 煤矿支护工字钢专用悬挂装置 Mine Support dedicated beam suspension |
| 12/07/2011 | CN202064974U 一种掘进迎头临时支护前探梁卡子 The former head of a temporary support tunneling probe beam clamp |
| 12/07/2011 | CN202064973U 防倒棚卡子 Anti-down shed clips |
| 12/07/2011 | CN102268998A 大跨度切眼双微拱减跨支护方法 Cut large span arched double cut across support method |
| 12/07/2011 | CN101482022B 一种整体底梁 A holistic bottom beam |
| 11/30/2011 | CN202055850U 综掘巷道远程端面防护装置 Mechanized Roadway remote end face protective devices |
| 11/30/2011 | CN102261258A 悬移支架安装架 Suspended support mounting bracket |
| 11/30/2011 | CN101899987B 一种煤矿巷道深层支护施工方法 One kind of deep mine roadway support construction method |
| 11/23/2011 | CN202047849U Hydraulic support top beam structure convenient for descending well |
| 11/16/2011 | CN102242637A Suspension support connection device and suspension support |
| 11/09/2011 | CN202031616U Anti-cracking lip of upper beam of hydraulic support |
| 11/02/2011 | CN202023570U Hydraulic support of integral top beam with telescopic beam |
| 10/19/2011 | CN102220871A Forging needling and hydraulic support |
| 10/19/2011 | CN102220870A Tunneling head-on temporary support front canopy clip |
| 10/13/2011 | US20110250024 Mine Roof and Rib Support with Vertical Bolt |
| 10/12/2011 | CN202007676U Mine driving face front canopy stabilizing structure |
| 10/12/2011 | CN102213103A Anti-falling shed clip |
| 10/05/2011 | CN202001037U U-shaped shed beam lifter |
| 10/05/2011 | CN202001036U Reinforced shed used in U-shaped shed-supported laneway |
| 09/21/2011 | CN102191945A Top beam of hydraulic support |
| 09/14/2011 | CN201972719U 一种防炮崩液压支架 One kind of collapse Artillery hydraulic support |
| 09/14/2011 | CN102182483A Semi-rigid abnormal beam anchor cable truss roadway supporting system |
| 09/14/2011 | CN102182479A Cracking-proof peristome of top beam of hydraulic support |
| 09/07/2011 | CN201963323U 液压支架伸缩梁 Telescopic hydraulic support beams |
| 08/31/2011 | CN201953385U 一种有高支撑力的煤矿抬棚 A kind of high supporting force coal Roof |
| 08/24/2011 | CN201943721U 掘进工作面锚杆支护前探梁 Heading Face before bolting the probe beam |