| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 08/07/2013 | CN203114184U Novel sliding-type power head hanger |
| 08/07/2013 | CN203114183U Power head installation bracket for raise boring machine |
| 08/07/2013 | CN203114182U Portable general drill stand of geological drilling rig |
| 08/07/2013 | CN203114167U Light drilling machine capable of implementing wire-line coring drilling |
| 08/07/2013 | CN203114166U Medium-and-large hole type engineering driller |
| 08/07/2013 | CN203114158U Fully-revolving casing pipe drilling machine |
| 08/07/2013 | CN203114157U Small-hole type engineering driller |
| 08/07/2013 | CN203114156U All-hydraulic engineering driller |
| 08/07/2013 | CN102364033B Frame column type pneumatic drill and operating method thereof |
| 08/07/2013 | CN102305025B Anchor cable rig bracket |
| 07/31/2013 | CN203097764U Injection head mounting device |
| 07/31/2013 | CN203097737U Telescopic integral hoisting type headframe device |
| 07/31/2013 | CN203097736U Rope doubling feed mechanism |
| 07/31/2013 | CN203097735U Foldable type top-driving guide rail |
| 07/31/2013 | CN203097734U Walking type movable rack |
| 07/31/2013 | CN203097733U Stand column bottom-section joint cross structure of drilling machine |
| 07/31/2013 | CN203097732U Positioning and fixing device for petroleum drilling-production equipment |
| 07/31/2013 | CN203097714U Full-hydraulic underground tunnel drilling machine |
| 07/31/2013 | CN103225481A Novel supporting structure of drilling machine |
| 07/31/2013 | CN101649723B Novel trailing drilling platform |
| 07/25/2013 | WO2013109453A2 Collapsible substructure for a mobile drilling rig |
| 07/24/2013 | EP2616626A1 Multi-operational multi-drilling system |
| 07/24/2013 | CN203081341U Dead line stabilizer of drilling rig derrick |
| 07/24/2013 | CN203081321U Mechanical device capable of being used for carrying out ceiling drilling operations on ground |
| 07/24/2013 | CN203081320U Adjusting lead screw |
| 07/24/2013 | CN203081319U Novel hydraulic supporting device |
| 07/24/2013 | CN203081318U Workover rig derrick supporting device |
| 07/24/2013 | CN203081317U Driller box support |
| 07/24/2013 | CN203081316U Telescopic guardrail |
| 07/24/2013 | CN203081315U Derrick ladder climbing power assisting device |
| 07/24/2013 | CN203081314U Novel drilling machine propeller strut |
| 07/24/2013 | CN203081313U Drill floor widening footboard |
| 07/24/2013 | CN203081312U Drilling rig derrick racking platform escape device |
| 07/24/2013 | CN203081311U Derrick erectness fixing device |
| 07/24/2013 | CN203081310U Telescopic control console and core drill therewith |
| 07/24/2013 | CN203081291U Drilling angle adjusting device of down-the-hole drill |
| 07/24/2013 | CN203081284U Intelligent hydraulic integrated open-air down-the-hole drill |
| 07/24/2013 | CN103221630A Two speed direct drive drawworks |
| 07/24/2013 | CN103216195A Dual-purpose device for drilling and cleaning well |
| 07/23/2013 | US8490716 Rock drilling device and rock drilling rig or rock bolting rig comprising such device |
| 07/18/2013 | US20130180702 Workover rig with reinforced mast |
| 07/18/2013 | US20130180186 Collapsible substructure for a mobile drilling rig |
| 07/18/2013 | US20130180185 Mast for drilling rigs and methods of assembling the same |
| 07/17/2013 | CN203067735U Rotary drilling rig and pulley mechanism thereof |
| 07/17/2013 | CN203067661U Fixing device and central mast and engineering machine |
| 07/17/2013 | CN203066878U Drill rig supporting device with double upright post base |
| 07/17/2013 | CN203066877U Rotary drilling rig and supporting portal thereof |
| 07/17/2013 | CN203066876U Sliding frame and power device and rotary drilling rig |
| 07/17/2013 | CN203066875U Detachable anti-skidding work walking board for deep well drilling rig |
| 07/17/2013 | CN203066874U Connection structure for rig body and chassis of water well drilling rig |
| 07/17/2013 | CN203066873U Extensible type mast sliding way structure for water well drilling machine |
| 07/17/2013 | CN203066872U Raise boring machine guiding supporting column |
| 07/17/2013 | CN203066871U Folded type vehicle-mounted water well drilling rig operating platform |
| 07/17/2013 | CN203066870U Mast lifting device of deep drilling rig |
| 07/17/2013 | CN203066869U Supporting seat of raise boring machine operating platform |
| 07/17/2013 | CN203066861U Three-arm drill jumbo drill arm combined support |
| 07/17/2013 | CN203066858U Multifunctional front-digging and back-hanging type earth boring machine |
| 07/17/2013 | CN103206172A H-shaped bottom frame structure of rotary drilling machine |
| 07/17/2013 | CN101044293B Modular drill system requiring limited field assembly |
| 07/16/2013 | CA2725218C Method and apparatus for improving the lateral support provided by the legs of a jack-up drilling rig |
| 07/11/2013 | WO2013028409A3 Riser system |
| 07/10/2013 | CN203050534U High altitude punching electric hammer mobile support |
| 07/10/2013 | CN203050533U Rotary drilling rig mast secondary limiting protection system |
| 07/10/2013 | CN203050532U Stand column of long spiral drilling machine |
| 07/10/2013 | CN203050531U Long spiral drilling machine |
| 07/10/2013 | CN203050530U Long spiral drilling machine and drilling depth control device thereof |
| 07/10/2013 | CN203050529U Drilling machine rack |
| 07/10/2013 | CN203050510U Signal hitting-prevention wall hole punching fixing support |
| 07/10/2013 | CN203050504U Crawler-type full hydraulic directional drilling machine for narrow tunnel |
| 07/10/2013 | CN203050501U Arched frame arch erecting mechanism |
| 07/10/2013 | CN203050487U Tubular drill and pile cutting drilling machine using same |
| 07/10/2013 | CN203049583U Multifunctional piler driver with three stand columns |
| 07/10/2013 | CN203049581U Piling machine |
| 07/10/2013 | CN103195359A Hydraulic power head engineering driller |
| 07/10/2013 | CN102359346B Lunar soil deep drilling sample recycling mechanism |
| 07/10/2013 | CN102011547B Moving device for petroleum drilling machine |
| 07/09/2013 | CA2599289C Damping device for an output shaft in a gearbox |
| 07/05/2013 | CA2854028A1 Fast transportable drilling rig system |
| 07/03/2013 | EP2609278A1 Parking and automatic handling equipment of drilling rods and associated drilling machine |
| 07/03/2013 | CN203035100U Well repair machine derrick cylinder locking device |
| 07/03/2013 | CN203035099U Drill carriage lifting mechanism |
| 07/03/2013 | CN203035098U Multipurpose drilling machine |
| 07/03/2013 | CN203035084U Assembly device for traveling frames of rotary drills |
| 07/03/2013 | CN203035083U Electric workover rig without guy ropes |
| 07/03/2013 | CN203035074U Universal rotary drilling machine |
| 07/03/2013 | CN203035073U Long spiral drilling machine |
| 07/03/2013 | CN103189591A Parking and automatic handling equipment of drilling rods and associated drilling machine |
| 06/27/2013 | WO2013035038A3 Drilling arrangement and clamping arrangement therefor |
| 06/27/2013 | WO2012092147A3 Fast transportable drilling rig system |
| 06/27/2013 | DE102011122028A1 Drill stand for core-drilling machine for drilling concrete material, has rotary drive unit whose rotating movement is transferred on rack gear intervention gear wheel through auxiliary gear box or without auxiliary gear box |
| 06/26/2013 | CN203022640U Dual-purpose steel headframe for shaft sinking and production of vertical shaft of mine |
| 06/26/2013 | CN203022639U Lifting holding-type punching device |
| 06/26/2013 | CN203022638U All-directional adjustment hoisting frame of long auger machine |
| 06/26/2013 | CN203022625U Full-hydraulic rock drilling excavator produced by means of hydraulic excavator |
| 06/26/2013 | CN203022624U Train translation device guide rail base |
| 06/26/2013 | CN103174385A Air leg support component of air leg rock drill |
| 06/26/2013 | CN103174383A Drill boom of drill loader |
| 06/26/2013 | CN103174382A Multifunctional hydraulic anchor rod drill carriage |
| 06/26/2013 | CN103174381A Rotary excavating drilling machine |
| 06/26/2013 | CN102031932B Supporting structure for mine rig |