| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 02/13/1996 | US5490568 Tractor-mounted stake driver |
| 02/06/1996 | CA2055030C Mobile drilling rig for closely spaced well centers |
| 01/24/1996 | EP0693593A1 Method for assembling very long parts of sheet metal girders for the legs of an oilplatform |
| 01/18/1996 | WO1996001360A1 Soil sampler |
| 01/18/1996 | CA2194368A1 Soil sampler |
| 11/30/1995 | DE4436264C1 Drilling mast hinged to body and erected by power cylinders |
| 11/02/1995 | DE4445420C1 Method for improved programmed explosive hole boring in driving galleries in rock and tunnel drilling |
| 10/19/1995 | DE4417295C1 Joint for modular construction steel tower |
| 10/10/1995 | CA2044128C Conductor guide forming machine |
| 09/19/1995 | US5450695 Telescoping derrick |
| 08/31/1995 | WO1995023276A1 Arrangement and method for controlling boom actuating cylinders in rock drilling equipment |
| 08/31/1995 | CA2183970A1 Arrangement and method for controlling boom actuating cylinders in rock drilling equipment |
| 08/30/1995 | CN2206347Y Petroleum drilling rig derrick |
| 08/17/1995 | WO1995021985A1 Drilling support unit to be mounted on an excavator boom |
| 08/17/1995 | CA2183358A1 Drilling support unit to be mounted on an excavator boom |
| 08/01/1995 | US5437341 Multi-drill mounter |
| 07/25/1995 | US5435399 Soil sampler |
| 06/20/1995 | CA2064625C Method and apparatus for breaking a full face of rock for constructing mines and tunnels |
| 06/13/1995 | US5423158 Vertically erected mast |
| 05/30/1995 | CA1335732C Drilling rig |
| 05/18/1995 | DE4338653A1 Drill carriage for underground application |
| 05/04/1995 | WO1995012040A1 Drilling apparatus |
| 05/04/1995 | CA2175361A1 Drilling apparatus |
| 03/29/1995 | EP0645496A1 Process and device for assembling the flanges of the supporting-legs of an oil-platform |
| 03/22/1995 | EP0643787A1 Method and apparatus for transporting and using a drilling apparatus or a crane apparatus from a single movable vessel |
| 03/15/1995 | EP0491964B1 Apparatus for injecting soil conditioning fluid |
| 03/14/1995 | US5396967 Post hole digger |
| 03/09/1995 | WO1995006800A1 Arrangement for mounting slides |
| 03/07/1995 | US5394949 Mobile soil sampling device |
| 02/21/1995 | US5390747 Well rig lift system and a hydraulic energy-storing well rig lift system |
| 02/14/1995 | US5388930 Method and apparatus for transporting and using a drilling apparatus or a crane apparatus from a single movable vessel |
| 02/14/1995 | US5388653 Directional drilling apparatus |
| 02/07/1995 | US5387736 Portable decontamination system and method for environmental well drilling rigs |
| 01/24/1995 | US5383524 Method and equipment for aligning the feeding beam of a rock drilling equipment |
| 01/17/1995 | US5381867 In a drilling rig system |
| 01/12/1995 | WO1995001496A1 Arrangement in a rock drilling equipment |
| 01/12/1995 | DE4341824A1 Method of regenerating and securing a landfill site and apparatus for carrying out the method |
| 01/03/1995 | US5377767 Hole digger |
| 12/28/1994 | EP0533716B1 Apparatus for feeding a drilling machine in extension rod drilling |
| 12/27/1994 | US5375667 Stowing and handling system for rods used in drilling rigs |
| 12/07/1994 | EP0627543A2 Underground borer with down hammer |
| 11/29/1994 | US5368112 Tensioning apparatus for tie down lines |
| 11/24/1994 | DE4317037A1 Drilling apparatus |
| 11/15/1994 | US5363925 Mobile drilling machine |
| 10/26/1994 | CN2180771Y Theft-proof anchor block pin |
| 10/26/1994 | CN2180769Y Range changeable drill frame for engineering drilling machine |
| 10/13/1994 | WO1994023173A1 Vertically erected mast |
| 10/12/1994 | CN2179454Y Boring tower with bolt ball joints net frame structure |
| 09/27/1994 | CA2078513A1 Light weight drill rig derrick |
| 09/20/1994 | US5348105 Method for aligning a feeding beam in a rock drilling equipment and a rock drilling equipment and a measuring device |
| 09/13/1994 | US5346334 Apparatus for injecting soil conditioning fluid |
| 08/02/1994 | CA1331126C Arrangement for operating hydraulic actuating means in a rock drilling boom and the like boom construction |
| 07/14/1994 | DE4300437A1 Ramming and drilling machine with displaceable support bar |
| 06/23/1994 | WO1994013926A1 A mole launcher and a method of operating a mole launcher |
| 06/23/1994 | CA2150697A1 A mole launcher and a method of operating a mole launcher |
| 05/26/1994 | DE4300287A1 Tree-reclamation system - fills holes at set distance successively with separating, nutrient and loose filler materials |
| 05/11/1994 | DE4237730A1 Clamping device for hydraulic pusher system - useful for sideways displacement of heavy load, e.g. bridge |
| 05/10/1994 | US5310011 For rock drilling equipment |
| 05/05/1994 | DE4236737A1 Drilling-rig for blasting holes - has hydraulically-operated reversing drive between boring bar and crown-shaped bit |
| 05/03/1994 | US5307882 Apparatus for feeding a drilling machine in extension rod drilling |
| 04/20/1994 | EP0592547A1 Pile driving machine. |
| 04/19/1994 | US5303783 Horizontal earth bore tool |
| 03/31/1994 | WO1994006999A1 Arrangement for measuring the position of a feed beam in a rock drilling apparatus and/or measuring the position of a rock drill |
| 02/01/1994 | US5282511 Post driver with improved bearing means |
| 02/01/1994 | CA1326659C Method and cable anchor assembly for anchoring plastic coated rope |
| 01/18/1994 | US5279372 Method of drilling holes in rock |
| 01/11/1994 | US5277386 Hose and cable conveyor |
| 12/28/1993 | US5273124 Earth drilling apparatus |
| 12/23/1993 | DE4219877A1 Mining cutter vehicle - is equipped with jacks and stabilising outriggers enabling raised chassis to traverse from side to side |
| 12/16/1993 | DE4217695A1 Mobile drilling system for hollow worm drilling - has slide on drill mast which is attached to vehicle, and accommodates rotating drive and has hole through which cable core device may run |
| 12/15/1993 | EP0573718A1 Moving apparatus for the automatic collection of ground samples |
| 12/14/1993 | US5269386 Self positioning dust seal holder |
| 12/14/1993 | US5269107 Mobile boring rig |
| 12/02/1993 | DE4231553C1 Mast support for crane or drilling rig car - has support swivel arm movable over car cabin |
| 11/23/1993 | US5263809 Material handling apparatus with multi-directional anchoring |
| 10/14/1993 | WO1993020289A1 Method and apparatus for transporting and using a drilling or crane apparatus from a moveable vessel |
| 10/12/1993 | US5251709 Drilling rig |
| 09/29/1993 | EP0562147A1 Directional drilling system with eccentric mounted motor and biaxial sensor |
| 09/28/1993 | US5248005 Self-propelled drilling module |
| 09/28/1993 | US5247776 Method for offshore rig up platform portable mast |
| 09/16/1993 | WO1993018311A1 A plug to be fixed to a tube by a glue joint |
| 09/08/1993 | EP0558567A1 A method for aligning a feeding beam in a rock drilling equipment and a rock drilling equipment and a measuring device. |
| 08/17/1993 | US5236054 Combination carrier truck and umbilical drilling rig |
| 08/03/1993 | US5232268 Method of breaking a full face of rock for constructing shafts and tunnels |
| 07/21/1993 | EP0551351A1 Method and equipment for aligning the feeding beam of a rock drilling equipment. |
| 07/21/1993 | EP0551299A1 Method of drilling holes in rock. |
| 07/20/1993 | US5228517 Method and apparatus for collecting percolating fluids and apparatus for the installation thereof |
| 07/13/1993 | US5226488 Truck mounted boring system |
| 06/30/1993 | EP0548900A2 Hydraulic drilling machine of telescopic tower type with a rod stowing and handling system |
| 06/29/1993 | US5222564 Drilling unit |
| 06/08/1993 | US5216867 Well mast structure |
| 05/25/1993 | US5213169 Exploration-sampling drilling system |
| 05/19/1993 | CA2080989A1 Hole digger |
| 05/18/1993 | US5211251 Apparatus and method for moving track guided equipment to and from a track |
| 05/18/1993 | US5211248 Portable soil sampling device and method |
| 05/18/1993 | US5211114 Offshore structure pulling system |
| 05/07/1993 | WO1993009329A1 Drilling unit |
| 04/13/1993 | US5201816 Side angle drilling apparatus |
| 03/31/1993 | EP0533716A1 Apparatus for feeding a drilling machine in extension rod drilling. |
| 02/03/1993 | EP0525186A1 Rock bed excavator |