| Patents for E21D 15 - Props; Chocks (3,432) |
|---|
| 11/23/2011 | CN202047837U Bottom valve |
| 11/23/2011 | CN202047836U Inserting pushing one-way lock |
| 11/23/2011 | CN202047835U Inserted hydraulic control one-way valve for thin coal bed support |
| 11/23/2011 | CN202047834U Plug-in type hand-operated direction valve |
| 11/23/2011 | CN202047833U Mining single hydraulic prop |
| 11/23/2011 | CN102251787A Single hydraulic prop disassembling machine |
| 11/23/2011 | CN102251786A Pressure monitoring device for hydraulic support |
| 11/23/2011 | CN101749037B Self-advancing gallery temporary ahead supporting device |
| 11/16/2011 | CN202039878U Steel bar mesh shell bracket for underground roadway |
| 11/16/2011 | CN202039876U Frame type hydraulic support assembling machine |
| 11/16/2011 | CN202039875U Special equipment for disassembling and assembling coal mine underground hydraulic support |
| 11/16/2011 | CN202039874U Erection platform and system for hydraulic support |
| 11/16/2011 | CN202039873U Fast wave absorption and energy dissipation buffering device for mines |
| 11/16/2011 | CN202039872U Large-flow check valve |
| 11/16/2011 | CN202039871U Safety valve |
| 11/16/2011 | CN202039870U Valve core assembly for pilot type stop valve |
| 11/16/2011 | CN202039869U Composite-material protective support plate |
| 11/16/2011 | CN202039868U Support for coal mine |
| 11/16/2011 | CN102242636A Single hydraulic pillar |
| 11/16/2011 | CN102242361A Laser cladding method for mining hydraulic support column and mining stainless steel hydraulic column |
| 11/09/2011 | CN202031615U Automatic movable horizontal hydraulic beam lifting device |
| 11/09/2011 | CN202031614U Hydraulic control one-way valve for vertical post of coal mining hydraulic support |
| 11/09/2011 | CN202031613U Large-flow safety valve used for hydraulic oil cylinder of hydraulic support |
| 11/09/2011 | CN202031612U Emulsion box of external liquid-level protecting device |
| 11/09/2011 | CN202031611U Automatic telescopic sealing device of hydraulic support |
| 11/09/2011 | CN202031610U End timbering support |
| 11/09/2011 | CN202031609U Pedal of hydraulic support suitable for working face with large inclined angle |
| 11/09/2011 | CN202031608U L-shaped hinged girder |
| 11/09/2011 | CN102235172A Wireless monitoring fully mechanized mining hydraulic support |
| 11/08/2011 | US8052352 Mine support having a linearly moveable and/or pivoting end plate |
| 11/02/2011 | CN202023586U Backboard mechanism for paste filling hydraulic support |
| 11/02/2011 | CN202023569U Multi-sealing single hydraulic prop |
| 11/02/2011 | CN102230386A Combined hydraulic strut cap |
| 10/27/2011 | WO2011133798A1 Pumpable support with cladding |
| 10/27/2011 | US20110262231 Pumpable Support with Cladding |
| 10/27/2011 | CA2796931A1 Pumpable support with cladding |
| 10/26/2011 | CN202017503U Automatic pin puller for hydraulic support |
| 10/26/2011 | CN202017502U Mono-hydraulic prop for mine |
| 10/26/2011 | CN202017501U Chained falling preventing device for ultra-front strut |
| 10/26/2011 | CN202017500U Prop anti-tilt device for mining support |
| 10/26/2011 | CN202017499U Fully automatic hydraulic prop |
| 10/26/2011 | CN102226404A Method for retracting surplus hydraulic supports of fully mechanized mining face |
| 10/19/2011 | CN202012362U 立式压机 Vertical press |
| 10/19/2011 | CN202012361U Horizontal press |
| 10/19/2011 | CN202012360U Pillar dismantling machine |
| 10/19/2011 | CN202012359U Dustproof ring for hydraulic bracket vertical post |
| 10/19/2011 | CN202012358U Individual hydraulic prop for mine |
| 10/19/2011 | CN102220871A Forging needling and hydraulic support |
| 10/19/2011 | CN102220869A Integral pulled sliding chain box and hydraulic support |
| 10/12/2011 | CN202007675U Individual hydraulic prop used on underground mining working surface |
| 10/12/2011 | CN202007674U Integral sealing column |
| 10/12/2011 | CN202007673U False-diagonal four-link flexible shield support |
| 10/12/2011 | CN102213104A Reversing operation torsion transmission shaft and multifunctional reversing spray operation valve bank |
| 10/12/2011 | CN102213102A Method for righting toppled brackets of large-inclined-angle working surface |
| 10/12/2011 | CN102213101A Column socket of hydraulic support |
| 10/12/2011 | CN102213100A Hydraulic prop capable of outputting constant force and repressing method |
| 10/05/2011 | CN202001036U Reinforced shed used in U-shaped shed-supported laneway |
| 10/05/2011 | CN202001035U Machine for mounting or dismounting hydraulic pillar |
| 10/05/2011 | CN202001034U Hydraulic clamping device and prop dismounting machine |
| 10/05/2011 | CN202001033U Liquid injecting gun for hydraulic prop |
| 10/05/2011 | CN202001032U Liquid return shutoff valve |
| 10/05/2011 | CN202001031U Plug-in mounting type small-flow hard sealing reversing valve |
| 10/05/2011 | CN202001030U Limit structure |
| 10/05/2011 | CN202001029U Double-handle ventilation suspended single body support pillar |
| 10/05/2011 | CN202001028U Suspending single hydraulic prop with external guider |
| 10/05/2011 | CN202001027U Water pressure adjustable multi-stage jack special for mine |
| 10/05/2011 | CN102207002A Equipment special for disassembling and assembling coal mine underground comprehensive machine equipment |
| 10/05/2011 | CN102207001A Testing device for pillar socket structure of hydraulic support |
| 09/28/2011 | CN101737067B Fore-support end bracket for tunnel at double-unit face in thin seam |
| 09/21/2011 | CN201982123U 一种煤矿巷道工作面切眼锚网梯加单体支护装置 One kind of mine roadway Face notch anchor ladder plus single support device |
| 09/21/2011 | CN201982121U 一种插装式立柱液控单向阀 One kind of plug-column check valve |
| 09/21/2011 | CN201982120U 插装式手动换向阀 Cartridge manual valve |
| 09/21/2011 | CN201982119U 一种静压平衡电磁先导阀 One kind of hydrostatic equilibrium solenoid pilot valve |
| 09/21/2011 | CN201982118U 带连接套的单体液压支柱 With connected sets of hydraulic prop |
| 09/21/2011 | CN201982117U 一种反压可缩性u形钢拱形支架 An anti-press retractable u-shaped steel arch support |
| 09/21/2011 | CN201982116U 钢管混凝土支架的接头定位装置 Concrete pipe fittings stent positioning device |
| 09/21/2011 | CN201982115U 用于煤矿巷道支护装置 Apparatus for coal roadway |
| 09/21/2011 | CN201980881U Lifting part of hydraulic bracket installation machine |
| 09/21/2011 | CN102191944A Inserted medium flow upright post hydraulic control one-way valve |
| 09/21/2011 | CN102191943A Chained tilting prevention device for advanced support |
| 09/21/2011 | CN102191942A Full-automatic hydraulic prop |
| 09/21/2011 | CN102191941A Support method for sharply inclined ultra-thick coal seam |
| 09/21/2011 | CN101749034B Shoring method for prolonging service cycle of soft rock laneway |
| 09/20/2011 | US8021083 Grout pack assembly |
| 09/15/2011 | US20110222970 Mine support grout packs |
| 09/14/2011 | CN201972719U 一种防炮崩液压支架 One kind of collapse Artillery hydraulic support |
| 09/14/2011 | CN201972718U 一种液压支架电液控制器隐藏式安装装置 A hydraulic electro-hydraulic controller hidden bracket mounting means |
| 09/14/2011 | CN102182482A Impact-resistant combined anti-pressure supporting system |
| 09/14/2011 | CN102182478A Fast wave eliminating/energy dissipating/cushioning device for mining |
| 09/14/2011 | CN102182477A Mining method for mechanized mining working surface end and corresponding end support bracket |
| 09/14/2011 | CN102182476A Footstep applicable to hydraulic support with large-inclination working surface |
| 09/14/2011 | CN102182475A I-shaped steel support system |
| 09/14/2011 | CN102182459A Method for recovering remaining triangle coal on two-winged stope by flexible shield support mining method |
| 09/14/2011 | CN101761338B Gob-side entry retaining method of a solid filling coal mining half-section one-leg shed |
| 09/07/2011 | CN201963322U 一种插装式双联液控单向阀 One kind of plug-double check valve |
| 09/07/2011 | CN201963321U 一种液压支架立柱导向套组装机构 A hydraulic support column guide sleeve assembly mechanism |
| 08/31/2011 | CN201953735U 手动式液压支架先导组合操纵阀 Manually operated hydraulic support pilot valve combination |
| 08/31/2011 | CN201953384U 一种对高地应力软岩巷道进行支护的装置 A kind of plateau stress soft rock roadway support device |
| 08/31/2011 | CN102168569A High-flow safety valve |
| 08/31/2011 | CN102168568A Novel hydraulic support upright post for surface preservative treatment and surface preservative treatment method thereof |