| Patents for E21D 15 - Props; Chocks (3,432) |
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| 07/11/2012 | CN202326140U 乳化液泵站防爆恒压供液装置 Emulsion pump constant pressure for liquid-proof device |
| 07/11/2012 | CN202325669U 炮采膏体充填液压支架 Blasting mining paste filling hydraulic support |
| 07/11/2012 | CN202325570U Revolving platform for turning around hydraulic support |
| 07/11/2012 | CN202325569U 矿用u型支架上梁辅助器 Mine u-bracket on the beam aids |
| 07/11/2012 | CN202325568U 一种硬密封液控阀芯插件 A hard seal hydraulic control valve plug |
| 07/11/2012 | CN202325567U 一种管式连接大流量液控单向阀 A pipe connection high flow check valve |
| 07/11/2012 | CN202325566U 一种大流量液控单向阀 One kind of high flow check valve |
| 07/11/2012 | CN202325565U 一种液压支架用双作用式喷水阀 A hydraulic support with double acting water valve |
| 07/11/2012 | CN202325564U 一种单向锁 One-way lock |
| 07/11/2012 | CN202325563U 综采支架完全闭锁装置 Stand fully mechanized mining locking device |
| 07/11/2012 | CN202325562U 智能防冲击支架装置 Intelligent anti-shock bracket arrangement |
| 07/11/2012 | CN202325561U 柱塞悬浮式矿用单体液压支柱 Piston floating mine hydraulic prop |
| 07/11/2012 | CN202325560U 带有防压死装置的矿用液压支架立柱 Ore crushing device with anti-hydraulic support column |
| 07/11/2012 | CN202325559U 边缘加反光标识的支架 Stent edge plus reflective logo |
| 07/11/2012 | CN102562103A Telescopic strut capable of preventing U-shaped steel from deforming |
| 07/11/2012 | CN102562101A Machine-mounted steel beam supporting device |
| 07/11/2012 | CN102562100A Automatic exhausting single hydraulic prop |
| 07/04/2012 | CN202300890U 气动式供水增压装置 Pneumatic pressurized water supply equipment |
| 07/04/2012 | CN202300443U 一种带有稳定机构的支架回撤牵引机的伸缩回转装置 Retractable rotary device with a stent stable institutions retracement of the tractor |
| 07/04/2012 | CN202300442U 矿用支架撤架装置 Withdrawing support bracket means Mine |
| 07/04/2012 | CN202300441U 薄煤层机采工作面增减液压支架 Thin seam mining face changes in hydraulic support machine |
| 07/04/2012 | CN202300440U 一种单体支柱外包式底座 One monomer type base pillar outsourcing |
| 07/04/2012 | CN202300439U 液压支架用两级密封式安全阀 Hydraulic support with two sealed safety valve |
| 07/04/2012 | CN202300438U 煤矿液压支架用双液控单向阀 Mine hydraulic support with double check valve |
| 07/04/2012 | CN202300437U 液压支架液压阀组防护装置 Hydraulic support hydraulic valve guards |
| 07/04/2012 | CN202300436U 一种液压支架带保护装置架前挡矸板 A hydraulic bracket with protective equipment rack front door Refuse board |
| 07/04/2012 | CN202300435U 钢管混凝土支架可缩性接头 Concrete Pipe bracket reducible joint |
| 07/04/2012 | CN202300434U 带限位功能的u型钢连接卡缆 U steel band limit function card cable connections |
| 07/04/2012 | CN202300433U 一种单体支柱防滑撑杆 One monomer strut brace slip |
| 07/04/2012 | CN202300432U 乳化液回收系统 Emulsion recovery system |
| 07/04/2012 | CN202300431U 增强单体液压支柱 Enhanced hydraulic prop |
| 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 |
| 07/04/2012 | CN202300429U Gangue filling and tamping mechanism |
| 07/04/2012 | CN102536287A Novel hydraulic support at end part of fully mechanized caving face |
| 07/04/2012 | CN102536275A Manual reversing main operation valve for hydraulic support of thin seam |
| 07/04/2012 | CN102536274A Equipressure double-telescopic prop |
| 07/04/2012 | CN101936176B Hydraulic bracket assembling machine |
| 07/04/2012 | CN101907887B Mineral hydraulic bracket controller, bracket control system and communication method |
| 07/04/2012 | CN101614225B Automatic discharge and self-cleaning filter device for emulsion pump station |
| 06/27/2012 | CN202284475U 阀式注液枪 Liquid injection valve gun |
| 06/27/2012 | CN102518457A Emulsified liquid box for hydraulic support general assembly workshop |
| 06/27/2012 | CN102518456A Method for maintaining roof of composite bed under stress concentration regions |
| 06/27/2012 | CN101936172B Governance method of floor heave of mine roadway during mining |
| 06/20/2012 | CN202280464U 一种液压支架操纵阀手把安全限位装置 A hydraulic control valve handle bracket safety limit device |
| 06/20/2012 | CN102505948A Foam concrete tank-type pier column for supporting in coal mines and preparation method thereof |
| 06/20/2012 | CN101984218B Floated single hydraulic strut with protective cover |
| 06/14/2012 | WO2011101716A3 A device for roof support of underground mine/tunnel |
| 06/14/2012 | US20120148350 Mine prop jack and method of prestressing a mine prop |
| 06/13/2012 | CN202273693U 单体液压支柱顶盖 Single hydraulic prop cover |
| 06/13/2012 | CN202273692U 单体液压支柱底座 Hydraulic prop base |
| 06/13/2012 | CN202273691U 增阻抗压式巷道支架 By impedance-pressure roadway support |
| 06/13/2012 | CN102493824A Retractable trapezoid support with cushion blocks |
| 06/13/2012 | CN102493823A Mine recyclable steel cylinder packing pier column and construction method thereof and method for gob-side entry retaining |
| 06/13/2012 | CN101994515B Anti-impact box for supporting pole of mine |
| 06/06/2012 | CN202266279U 一种单体液压支柱拆卸机 One monomer hydraulic prop demolition machine |
| 06/06/2012 | CN202266278U 集成式智能矿压检测报警指示器 Integrated Intelligent Mine voltage detection alarm indicator |
| 06/06/2012 | CN202266277U 一种u型棚支护用可缩支柱 One kind of u-type with a retractable roof support pillar |
| 06/06/2012 | CN101749035B Ready-packaged arch timbering steel frame of round tunnel urgent repairing |
| 05/30/2012 | CN202250119U Totally-enclosed U-shaped shed support frame for roadway supporting |
| 05/30/2012 | CN202250115U Cartridge type hard-seal bidirectional lock |
| 05/30/2012 | CN202250114U Hydraulic system and pressure increasing valve using same |
| 05/30/2012 | CN202250113U Hydraulic bracket pose detecting device based on multi-sensor data fusion |
| 05/30/2012 | CN202250112U Mining single spiral pillar |
| 05/30/2012 | CN202250111U Supporting tool |
| 05/30/2012 | CN102477867A 一种新型单体液压支柱 A new hydraulic prop |
| 05/30/2012 | CN101793155B Convenient and fast constant-resistance type temporary support strut |
| 05/30/2012 | CN101182777B Valve cell |
| 05/23/2012 | CN202228092U Hydraulic support disassembling device |
| 05/22/2012 | US8181937 Hydraulic leveling cylinder |
| 05/16/2012 | CN202220611U Support adjusting device for truck loading platform and the truck loading platform |
| 05/16/2012 | CN202220610U Hydraulic pillar capable of outputting constant force |
| 05/16/2012 | CN102454410A Timbering equipment for coal mines |
| 05/09/2012 | CN202215265U Hydraulic rack base and hydraulic rack |
| 05/09/2012 | CN202215264U Telescopic L-shaped hydraulic supporting frame under mine |
| 05/09/2012 | CN202215263U Coal mine underground crossheading forepoling supporting frame |
| 05/09/2012 | CN102444412A Integrated intelligent mine pressure detection warning indicator |
| 05/09/2012 | CN102444411A Spiral lifting pressure stabilization support column |
| 05/03/2012 | WO2012056393A1 Mine support |
| 05/02/2012 | CN202209178U U-shaped card |
| 05/02/2012 | CN102435431A Comprehensive test platform for valve used for mining hydraulic bracket |
| 05/02/2012 | CN102434441A Explosion-prevention constant pressure liquid supply device of emulsion pump station |
| 05/02/2012 | CN101725362B Composite support device of dynamic pressure softrock tunnel based on steel pipe concrete bracket |
| 04/26/2012 | DE102010048794A1 Hilfsgeschirr zum Lösen einer Klemmverbindung für ineinander liegende Rinnenprofile des untertägigen Grubenausbaus Auxiliary Dishes for loosening a clamp connection for nested trough sections of underground mine development |
| 04/25/2012 | CN202202887U 换向操作扭力传输轴及多功能换向喷雾操作阀组 Commutation operating torque transmission shaft and multi-commutation spray valve operation |
| 04/25/2012 | CN202202878U 液控单向阀 Check valve |
| 04/25/2012 | CN202202877U 液压支架双伸缩立柱用底阀 Double Telescoping hydraulic support with foot valve |
| 04/25/2012 | CN102428253A 泄压阀 Pressure relief valve |
| 04/25/2012 | CN102425436A 连接u型钢支架与单体液压支柱的固定式卡座 U-shaped steel bracket and connecting hydraulic prop fixed deck |
| 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 |
| 04/24/2012 | US8162289 Modular jack apparatus for lifting floors and other structures |
| 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 |
| 04/18/2012 | CN202194674U Hydraulic support trunnion connecting and fixing structure |
| 04/18/2012 | CN202194673U Connecting and fixing structure for connector of hydraulic support |
| 04/18/2012 | CN202194672U 单体支柱测压装置 Prop pressure measurement device |
| 04/18/2012 | CN102418539A 软岩煤巷快速过构造掘进中的支护工艺 Soft Coal Roadway Driving fast over construction of Support Technology |
| 04/18/2012 | CN102418538A 一种煤矿用高速吸能防冲让位液压支架 One kind of coal with high-speed anti-red absorbing gave way hydraulic support |
| 04/11/2012 | CN102410032A Pvc柱鞋及制作工艺 Pvc column shoes and craftsmanship |
| 04/11/2012 | CN101718205B 邻架操作先导换向阀 O frame operation pilot valve |
| 04/04/2012 | CN102400697A 架棚机及应用其的掘进机 Shed machine and application thereof boring machine |
| 04/04/2012 | CN102400696A 架棚机及应用其的掘进机 Shed machine and application thereof boring machine |