Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8096352 | Centralizer for tubular elements A centralizer for tubular elements is provided which includes an inner part formed by a first material having high mechanical performance and chemical stability and an outer part arranged on said inner part, formed by a second material. The second material may be an... | 01/17/2012 |
| 8011391 | End protector device for tubular structures A protector device for the ends of the tubular goods, such as tubes for the oil industry, OCTG, line pipes and the like is provided. The protector device may include two pieces, a generally elongate protector body and a bumper reinforcement that may be reversibly co... | 09/06/2011 |
| 7431347 | Hollow sucker rod connection with second torque shoulder An elongated drive string assembly comprising a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each holl... | 10/07/2008 |
| 7404419 | Tubular element end protector and tubular element comprising same A protector for the ends (2) of tubular elements (1), which comprises: a ring (3) made from a deformable material, wherein the external surface of one of the ends thereof has a conical thread (4); and | 07/29/2008 |
| 6997330 | Apparatus and method for storing or shipping elongated members An assembly for storing elongated members, the assembly comprising an elongated support element and a pair of segments. The segments are disposed on opposite sides of the elongated support element from each other, and each of the segments defines a cradle for suppor... | 02/14/2006 |
| 6991267 | Assembly of hollow torque transmitting sucker rods and sealing nipple with improved seal and fluid flow An elongated drive string assembly includes a plurality of hollow sucker rods and connecting elements between a drive head located at the surface of an oil well and a rotary pump located deep down in an oil well, with a series of holes at each end to substantially i... | 01/31/2006 |
| 6957933 | Threading insert with cooling channels A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley... | 10/25/2005 |
| 6737174 | Corrosion resistant sucker rods The present invention discloses a sucker rod with high resistance to corrosion, to be used preferably in oil wells. Said sucker rod comprises a core of carbon steel, whether alloyed or not, whose surface is coated by a copper base alloy. Said alloy comprises a 50 to... | 05/18/2004 |
| 6723384 | Corrosion resistant sucker rods The present invention discloses a sucker rod with high resistance to corrosion, to be used preferably in oil wells. Said sucker rod comprises a core of carbon steel, whether alloyed or not, whose surface is coated by a copper base alloy. Said alloy comprises a 50 to... | 04/20/2004 |
