| Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198) |
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| 06/03/1980 | CA1078814A1 Apparatus and method for hydraulic makeup and control |
| 05/27/1980 | US4204715 Method and device for breaking a hard compact material |
| 05/27/1980 | CA1078370A1 Floor level pipe handling apparatus |
| 05/20/1980 | US4203182 Slip assembly |
| 05/20/1980 | CA1077919A1 Movable working platform for use in racking drill pipe |
| 05/20/1980 | CA1077918A1 Finger latch actuation sensor |
| 05/13/1980 | US4202653 Pipe handling apparatus |
| 05/13/1980 | US4202490 Drill pipe identification method and system |
| 05/13/1980 | US4202427 Derrick escape system |
| 05/13/1980 | US4202225 Power tongs control arrangement |
| 05/13/1980 | US4202208 Hydraulic torque indicator |
| 05/13/1980 | US4202087 Device for retaining setting cables |
| 05/13/1980 | CA1077530A1 Drill units for drilling and charge laying operations and method of carrying out the operations |
| 05/06/1980 | CA1077017A1 Feed beam |
| 04/30/1980 | EP0010534A1 Device for cooling the picks of the cutting tools of a cutting machine and the excavation face and for preventing the formation of dust |
| 04/29/1980 | US4200054 Stabilized hoist rig for deep ocean mining vessel |
| 04/29/1980 | US4200010 Power-operated drill pipe spinner and pipe tongs |
| 04/29/1980 | US4199847 Well riser support having elastomeric bearings |
| 04/22/1980 | US4199033 Augering accessory for backhoe or the like |
| 04/22/1980 | US4199032 Apparatus for measuring and controlling a force |
| 04/16/1980 | EP0009639A2 Multi-purpose mobile drill rig |
| 04/15/1980 | US4198179 Production riser |
| 04/15/1980 | CA1075676A1 Power tongs |
| 04/08/1980 | US4196914 Chuck for an earth boring machine |
| 04/08/1980 | US4196781 Telescoping joint |
| 04/08/1980 | CA1075225A1 Downcrowding boom assembly |
| 04/01/1980 | US4196334 Method for assembling vertical ducts by electron-welding |
| 04/01/1980 | CA1074778A1 Power tong apparatus |
| 03/25/1980 | US4194579 Drilling apparatus and method |
| 03/25/1980 | US4194419 Drill pipe handling mechanism |
| 03/18/1980 | US4193459 Post-hole driver |
| 03/18/1980 | CA1073896A1 Drill steel centralizer |
| 03/11/1980 | US4192206 Apparatus for rotating a tubular member |
| 03/04/1980 | US4191263 Peat sampling probe |
| 02/26/1980 | US4190119 Earth drilling apparatus |
| 02/26/1980 | US4190116 Mine roof bolter |
| 02/19/1980 | US4188997 Well pump service |
| 02/05/1980 | US4187546 Computer-controlled oil drilling rig having drawworks motor and brake control arrangement |
| 02/05/1980 | US4186973 Deck-mounted shaft bushing |
| 02/05/1980 | CA1071183A1 Drill pipe handling mechanism |
| 01/29/1980 | US4185513 Universal coupling |
| 01/29/1980 | CA1070666A2 Drill pipe handling mechanism |
| 01/15/1980 | US4183649 Oil derrick string-up apparatus and methods |
| 01/08/1980 | US4182424 Drill steel centralizer |
| 01/08/1980 | US4182253 Drilling vessel with handling means for drilling pipe |
| 01/08/1980 | CA1069493A1 Automated drill pipe handling system |
| 01/08/1980 | CA1069492A2 Automated drill pipe handling system |
| 01/01/1980 | CA1069044A Shear rams for hydrogen sulfide service |
| 12/18/1979 | US4178817 Powered pipe wrench |
| 12/04/1979 | US4176722 Marine riser system with dual purpose lift and heave compensator mechanism |
| 12/04/1979 | US4176714 Shock absorber for oil well pumping unit |
| 12/04/1979 | US4176436 Method and apparatus for counting turns when making threaded joints |
| 11/15/1979 | WO1979000908A1 Machine for pulling out a drilling tube of the ground |
| 11/13/1979 | US4173804 Floating installation connected to a stationary underwater installation through at least one flexible pipe |
| 11/13/1979 | CA1066266A1 Pipe handling and transportation apparatus |
| 10/30/1979 | US4172684 Floor level pipe handling apparatus |
| 10/30/1979 | US4172391 Drill drive mechanism |
| 10/23/1979 | CA1064899A1 Drill string holder |
| 10/23/1979 | CA1064898A2 Drawworks for portable drilling rig |
| 10/16/1979 | US4170908 Indexing mechanism for an open-head power tong |
| 10/16/1979 | US4170907 Door interlock for an open-head power tong |
| 10/16/1979 | CA1064470A1 Rock drilling apparatus with noise reducing drill rod cover |
| 10/09/1979 | US4170340 Hydraulic well derrick with cable lifts |
| 09/25/1979 | CA1063017A1 Riser set-aside system |
| 09/20/1979 | WO1979000704A1 Process and device for screwing tubular sleeves |
| 09/18/1979 | CA1062697A1 Pipe delivery system and method for delivering pipe |
| 09/11/1979 | CA1062239A1 Multi-stage well drilling mast assembly |
| 09/11/1979 | CA1062238A1 Apparatus for depth control of suspended objects |
| 09/11/1979 | CA1062237A1 Power operated drill pipe tongs |
| 08/28/1979 | US4165690 Drill units for drilling and charge laying operations and method of carrying out the operations |
| 08/28/1979 | CA1061324A1 Rock drilling machine |
| 08/21/1979 | CA1060869A1 Electrical cable feeding and removing apparatus |
| 08/21/1979 | CA1060868A1 Method and apparatus for deployment and retrieval of fixed lengths of electrical cable into and from a well bore |
| 08/14/1979 | USRE30071 Drill string element handling apparatus |
| 08/14/1979 | CA1060428A1 Feed leg for a percussive drilling machine |
| 08/07/1979 | US4163625 Movable working platform for use in racking drill pipe |
| 08/07/1979 | US4163401 Electro-hydraulic interface for a power tongs |
| 08/07/1979 | CA1059983A1 Drill steel clamping apparatus |
| 07/31/1979 | US4162704 Pressure control device |
| 07/31/1979 | CA1059614A1 Ultrasonic inspection apparatus for well operations |
| 07/31/1979 | CA1059613A1 Ultrasonic inspection apparatus for vertical members |
| 07/24/1979 | US4161988 Portable earth core sampling machine |
| 07/17/1979 | CA1058606A1 Rotary power slip assembly |
| 07/10/1979 | CA1058153A1 Mechanism for tensioning fluid hoses on a rock drill feed |
| 07/03/1979 | US4160060 Platform safety barrier |
| 06/26/1979 | CA1057081A1 Method and apparatus for determining on-board a heaving vessel the flow rate of drilling fluid flowing out of a wellhole and into a telescoping marine riser connected between the wellhole and vessel |
| 06/19/1979 | US4158520 Rock bolting apparatus |
| 06/19/1979 | CA1056808A1 Thrust and tension measuring device for use with flexible tubing injectors on drilling rigs |
| 06/05/1979 | US4157231 Hydraulic drill unit |
| 06/05/1979 | US4157129 Stabbing board assembly |
| 05/29/1979 | CA1055477A1 Rock drill |
| 05/29/1979 | CA1055474A1 Device for handling and racking riser pipes and drill pipes |
| 05/22/1979 | US4155409 Rod puller for rock drill |
| 05/15/1979 | USRE29995 Dual elevators |
| 05/15/1979 | US4154310 Method and equipment for drilling wells |
| 05/08/1979 | US4153120 Change in length of drill string while instrument remains therein |
| 05/08/1979 | CA1054168A1 Sensitive deep-well-drilling hook load measuring system |
| 05/08/1979 | CA1053919A1 Continuous laying of pipes of large diameters |
| 05/01/1979 | US4151903 Submersible pump raising and lowering tool |
| 04/24/1979 | US4150727 Downcrowding device for earth boring machines |