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 |
| 4828294 | Threaded joint for steel pipes containing a sealing device located at the level of the threading A threaded joint for steel pipes useable in particular for the petroleum industry is provided. The joint is formed by threaded male and female elements wherein one part of the thread of a first element is strongly applied against the thread of the other e... | 05/09/1989 |
| 4828295 | Steel tube threaded joint having an impervious device at the level of the threading The invention concerns a steel tube threaded joint particularly useful in the petroleum industry of the type in which the male element (3) and female element (1) are combined by threading (2, 4) wherein a portion of the surface of each thread is forcefull... | 05/09/1989 |
| 4791816 | Device for determining when a threaded tube joint with screw limiting stop is properly made up A device for determining when a threaded joint for steel tubes having a male element (1) with external threads (3) with a screw limiting stop (5), and a female element (2) with corresponding internal threads (4) and a corresponding screw limiting stop (6)... | 12/20/1988 |
| 4787680 | Semi-rigid axle for a vehicle The invention relates to a U-shaped semi-rigid axle for a vehicle. The axle comprises a transverse portion pivotally connected to the body of the vehicle and two arms serving to mount stub axles on which the wheels are fixed. It is formed of a one-piece t... | 11/29/1988 |
| 4729422 | Process and apparatus for the production of hollow bodies by continuously casting in a magnetic field The process and apparatus according to the invention concern continuous casting of hollow bodies of metals such as aluminum, copper, steels of all types, or other metals or alloys. The process comprises introducing the liquid metal into an annular space b... | 03/08/1988 |
| 4700576 | Process and device for executing the screwing of a threaded joint for tubes, equipped with a stop A process is provided for executing the screwing of a threaded joint for steel tubes, designed especially for the petroleum industry, of the type having a male element (1) with external threading (3) and female element (2) with internal threading (4), as ... | 10/20/1987 |
| 4691791 | Knurled drill stem The invention disclosed herein concerns a drill stem intended for sinking shafts in the ground, especially for the oil and natural gas industry. It has on its outer periphery a surface of revolution providing a succession of hollow profiles with a rounded... | 09/08/1987 |
| 4665780 | Method of machining threaded pipe-ends The invention concerns a process for machining a joint element for steel tubes, intended in particular for the petroleum industry, containing a truncated surface (2) and at least one screw stop. One first carries out final machining of a truncated surface (2) ... | 05/19/1987 |
| 4641410 | Method and apparatus for making a joint for steel tubes The present invention concerns a new threaded joint for steel tubes, usable in particular in the petroleum industry, which contains a female element equipped with conical threads having an internal screw stop mating and a male element correspondingly thre... | 02/10/1987 |
| 4617067 | Process for the production of semi-finished articles of hard steels using a continuous casting operation The present invention is directed to a continuous casting process for the production of semi-finished articles or blanks of hard steels such as bars, wires or tubes having a carbon content higher than 0.75%. In this process, the blank obtained by continuo... | 10/14/1986 |
| 4614225 | Magnetic rotor for the continuous casting of hollow bodies The process and the device according to the invention relate to the continuous casting of hollow bodies made of metals such as aluminum, copper, steels of all types or other metals or alloys. The process involves introducing the liquid metal into an annul... | 09/30/1986 |
| 4614120 | Determination of the make-up torque for pipe joints The invention provides a process for the determination of the make-up torque to be applied on a joint for pipe, destined to the petroleum industry according to which a reference mark is set on the male element and on the female element, so that when the t... | 09/30/1986 |
| 4555265 | Method of treating steel with calcium, to obtain a steel well adapted to cold forming, with a low silicon content The invention concerns the production of steels which have an isotropic structure, are very well adapted to cold forming particularly by pressing and which have a very low silicon content. The method comprises taking a deoxidated liquid steel with a low silico... | 11/26/1985 |
| 4515020 | Method and apparatus for ensuring correct thread make-up of a pipejoint A method and device for ensuring correct assembly of screwed pipejoints having at least one stop. During assembly the screwing torque is measured continuously, the value of the second differential of the screwing torque is determined uninterruptedly, and ... | 05/07/1985 |
| 4486227 | Manufacture of a composite tubular product For the purpose of introducing an additive into a molten metal bath, a reactive powder is enclosed in a tubular sleeve composed of a metal compatible with the bath. The cross-section of the sleeve is reduced after filling to compact the powder while leavi... | 12/04/1984 |
| 4483638 | Device for fixing a piercing or expanding plug to a piercing or expanding bar The invention relate to fixing a plug in the end of a bar, the assembly being used for production of cylindrical hollow blanks which will be later rolled. The device comprises a plug including at its rear end a shank which can be introduced into an axial ... | 11/20/1984 |
| 4426105 | Joints for pipes, particularly intended for the oil industry Joint for pipes of the type in which an end of a male member (1) provided with a thread is screwed into a female member (2) having a corresponding thread. On its outer surface, the male member has a circumferential groove (9) and on the inner surface the ... | 01/17/1984 |
| 4413395 | Method for fixing a tube by expansion A method for fixing a tube by expansion improve the seal between a tube and a support plate which are joined by expansion fixing. The method comprises forming fine annular projections on the surface of a bore which is formed in the support plates, and ins... | 11/08/1983 |
| 4395897 | Rolling head support assembly for a rolling mill In a rolling mill having a perforating head supported on a bar which is rotatable and longitudinally displaceable, the bar is supported on a carriage by way of a gripper fixed to the carriage and engaging a recess in the bar with sufficient radial play to... | 08/02/1983 |
| 4383604 | Device for the transfer of long products particularly bars or tubes During transfer the bars or tubes of circular section are separated from each other and displaced step by step by the device while being propelled laterally and rotated. The device comprises three sets of vertically movable stringers, each having upwardly... | 05/17/1983 |
| 4380480 | Method of making one-piece tubular axle blanks and the produced axle blanks A method for the economical manufacture of one-piece tubular axle blanks of the type having a center portion with journals at both ends. The method involves quenching a length of a preheated steel tube followed by tempering and then swaging at both ends b... | 04/19/1983 |
| 4375160 | Manufacture of seamless steel tube In the manufacture of seamless steel tube by hot-rolling a tube blank on a mandrel in a continuous rolling mill, the tube is withdrawn from the mandrel and reduced by reducing roll stands downstream of and in alignment with the rolling mill which operate ... | 03/01/1983 |
| 4373703 | Device for rapidly cooling metal tubes The device according to the present invention is an improvement on the conventional devices for quenching metal tubes (3) by immersion into a tank (4) of liquid at ambient temperature. This device comprises in particular a deflector (18) positioned below the ... | 02/15/1983 |
| 4364770 | Manufacture of a composite tubular product For the purpose of introducing an additive into a molten metal bath, a reactive powder is enclosed in a tubular sleeve composed of a metal compatible with the bath. The cross-section of the sleeve is reduced after filling to compact the powder while leavi... | 12/21/1982 |
| 4326398 | Apparatus to equalize in height, by hammering, the line of welding of longitudinally welded tubes An apparatus for flattening the weld bead of longitudinally welded tubes consisting of a hammering mass impacting with a frequency greater than 2500 impacts per minute and an anvil having an elastomer bushing at each end.... | 04/27/1982 |
| 4019394 | Drive device for clamp holder carriages of a continuously operating pilger mill A drive device for clamp holder carriages of a continuously operating pilger rolling mill, comprising two carriages sliding on slides parallel to the rolling axis. Each carriage is coupled to a screw threaded rod, rotation of which causes movement of the ... | 04/26/1977 |
