| 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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| 04/16/1985 | US4511169 Self locking and unlocking elevator assembly |
| 04/16/1985 | US4511168 Slip mechanism |
| 04/09/1985 | US4509605 Wireline protector with improved clamping mechanism |
| 04/09/1985 | US4509600 Pipe base well screen and system for joining a plurality of well screen segments |
| 04/09/1985 | CA1185229A1 Beam type racking system |
| 04/09/1985 | CA1185228A1 Well pipe jack |
| 04/02/1985 | US4508035 Explosive charging apparatus for rock drilling |
| 03/26/1985 | US4506730 Device for assembling jacketed lengths of pipe base well screens |
| 03/26/1985 | US4506591 Ocean floor dredge system having a pneumohydraulic means suitable for providing tripping and heave compensation modes |
| 03/19/1985 | US4505614 For centering a pipe in an opening in a support |
| 03/13/1985 | EP0134177A1 Drill rods particularly for gas or oil wells with a zone for receiving the holding slips |
| 03/12/1985 | US4503917 Carriage feed system |
| 03/12/1985 | CA1183831A1 Drilling rig jack mechanism |
| 03/05/1985 | US4502665 Apparatus for moving a cylindrical object |
| 03/05/1985 | US4502543 Riser union with curved seat |
| 03/05/1985 | CA1183518A1 Pipe handling machine |
| 02/26/1985 | US4501524 Drill string element handling apparatus |
| 02/26/1985 | US4501337 Apparatus for forming and using a bore hole |
| 02/26/1985 | US4501335 Method and apparatus for use in drill string make up |
| 02/26/1985 | US4501219 For maintaining a structure between offshore support and marine riser pipe |
| 02/26/1985 | US4501199 Automatically controlled rock drilling apparatus |
| 02/19/1985 | US4500141 Drill steel idler guide |
| 02/14/1985 | WO1985000634A1 Power tong for the connection of drilling pipes |
| 02/12/1985 | US4498698 Drill rig hook |
| 02/12/1985 | US4498563 Wireline catcher |
| 02/05/1985 | US4497378 Drilling and bolting turret |
| 02/05/1985 | US4497224 Apparatus for making and breaking screw couplings |
| 02/05/1985 | CA1182104A1 Method and apparatus for forming and using a bore hole |
| 02/05/1985 | CA1181992A1 Wire assemblies for repetitive, continuous cycle, tensile load conditions, particularly sucker rods for oil wells |
| 01/29/1985 | US4496032 Brake unit |
| 01/29/1985 | US4495840 Bit breaker |
| 01/29/1985 | US4495804 Method of and apparatus for mining analysis |
| 01/23/1985 | EP0131771A1 Drilling device, especially for underground mining |
| 01/22/1985 | US4494899 Pipe trough for transporting pipe between upper and lower positions |
| 01/22/1985 | US4494425 For threading/unthreading a joint of cylindrical goods |
| 01/22/1985 | US4494424 Chain-powered pipe tong device |
| 01/22/1985 | US4494376 Fluid actuated jack mechanism |
| 01/09/1985 | EP0130450A1 Device for pulling a drill pipe string from a bore hole and for loosening pipe joints |
| 01/08/1985 | US4492502 Technique for picking up and laying down pipe |
| 01/08/1985 | US4492501 Platform positioning system |
| 01/08/1985 | US4492134 Apparatus for screwing pipes together |
| 01/02/1985 | EP0129968A1 Pipe pick-up and lay-down apparatus for drilling |
| 01/02/1985 | EP0129550A1 Earth-working machine. |
| 01/01/1985 | US4491450 Pick-up and laydown machine |
| 01/01/1985 | US4491186 Automatic drilling process and apparatus |
| 12/27/1984 | EP0129277A1 Hoisting device with compensated tackle |
| 12/25/1984 | US4489794 Link tilting mechanism for well rigs |
| 12/18/1984 | CA1179671A1 Device for reciprocating motion of a rotating drilling body of a drilling machine |
| 12/11/1984 | US4487273 Gripping tool adapted for use with device for driving rod-shaped elements into and out of the ground |
| 12/11/1984 | US4487150 Riser recoil preventer system |
| 12/11/1984 | US4487092 For rotating a tubular member |
| 12/11/1984 | CA1179322A1 Top drive well drilling apparatus |
| 12/11/1984 | CA1179321A2 Lifting apparatus for handling down-hole tubulars |
| 12/11/1984 | CA1179320A1 Lifting apparatus for handling down-hole tubulars |
| 12/06/1984 | WO1984004778A1 Vertical hole-boring machine |
| 12/04/1984 | US4486137 Pipe pickup and laydown machine |
| 12/04/1984 | US4485697 Kelly spinner |
| 12/04/1984 | US4485570 Apparatus for mounting a drilling machine on an excavator bucket |
| 11/27/1984 | US4484637 Positioning control system for rock drill support apparatus |
| 11/27/1984 | CA1178573A1 Power spinner for rotating a kelly joint |
| 11/27/1984 | CA1178533A1 Apparatus for forcing tubular elements into and out of boreholes |
| 11/21/1984 | EP0115492A4 An attachment for a powered tool. |
| 11/20/1984 | US4483564 Oil well sucker rod safety block |
| 11/13/1984 | US4481714 For measuring the length of a string of tubular members |
| 11/07/1984 | EP0124467A1 Drill rig hook |
| 11/07/1984 | EP0124117A2 Guiding and centering device for screw-connected tubes |
| 11/06/1984 | US4480818 Safety enhancement device for well-logging cable sheave wheels |
| 10/31/1984 | EP0123671A2 Drilling device |
| 10/31/1984 | EP0123503A2 Power tongs assembly |
| 10/30/1984 | US4479656 Means for sealing a gap around a conductor pipe in an offshore oil platform |
| 10/30/1984 | US4479547 Well pipe jack |
| 10/30/1984 | US4479537 Power tubing hanger and tubing string lifting assembly |
| 10/23/1984 | US4478586 Buoyed moonpool plug for disconnecting a flexible flowline from a process vessel |
| 10/23/1984 | US4478291 Drilling rig |
| 10/23/1984 | US4478111 Suspension of adjustable pipe spinner |
| 10/17/1984 | EP0121545A1 Assembly for handling and racking drill pipe in a derrick |
| 10/16/1984 | US4476945 Drainhold drilling |
| 10/16/1984 | US4476940 Portable drilling apparatus |
| 10/16/1984 | US4476936 Jacking mechanism supported by a wellhead |
| 10/09/1984 | USRE31699 Back-up power tongs and method |
| 10/09/1984 | US4475755 Apparatus and method for assembly-disassembly of a spring loaded hook |
| 10/09/1984 | US4475607 Clamp and insert for clamping drilling tubulars |
| 10/09/1984 | US4475604 Mobile machine for subterranean installation of piping and the like |
| 10/02/1984 | US4474520 Pipe handling machine |
| 10/02/1984 | US4474253 Apparatus for producing an upwardly directed drill hole |
| 10/02/1984 | US4474088 Reverse pin for sucker rod tongs |
| 10/02/1984 | CA1175345A1 Method and apparatus for pumping subterranean fluids |
| 09/26/1984 | EP0119375A1 Anchoring bolt drilling and setting device, especially for mining |
| 09/25/1984 | US4473323 Buoyant arm for maintaining tension on a drilling riser |
| 09/18/1984 | US4472002 Retractable bit guide for a drilling and bolting slide |
| 09/18/1984 | US4471674 Spinning tool for pipe, rod and cylinder rotation |
| 09/11/1984 | US4470740 Apron for pipe handling system |
| 09/11/1984 | US4470739 Auxiliary workover rig |
| 09/11/1984 | US4470721 Crane assembly for floatable oil/gas production platforms |
| 09/05/1984 | EP0117833A1 Well pipe handling apparatus |
| 09/04/1984 | US4469361 Derrick sky hook |
| 09/04/1984 | US4469181 Adjustable conductor guide assembly for sub-sea wells and methods and tools for adjustment thereof |
| 09/04/1984 | US4469171 Wireline guiding apparatus |
| 09/04/1984 | US4468959 Method and apparatus for tallying pipe |
| 08/28/1984 | US4467871 Rod stand |