Abstract: Fatty acid composition comprising at least 80% by weight of omega-3-fatty acids, salts or derivatives thereof, wherein (all-Z)-5,8,11,14,17-eicosapentaenoic acid (EPA) and (all-Z)-4,7,10,13,16,19-docosahexaenoic acid comprises at least 75% by weight of the total fatty acids. The compositions can be used for the treatment or prophylaxis of multiple risk factors for cardiovascular diseases.

Abstract: Procedure for the production of a thixotropic magnesium alloy by adding a grain refiner combined with controlled, rapid solidification with subsequent heating to the two-phase area. It is preferable to use a solidification rate of >1.degree. C./s, more preferably >10.degree. C./s. It is essential that the solidification takes place at such a speed that growth of dendrites is avoided. Heating to the two-phase area is carried out rapidly in 1-30 minutes, preferably 2-5 minutes. By heating an alloy comprising 2-8 weight % Zn, 1.5-5 weight % RE, 0.2-0.8 weight Zr balanced with magnesium to a temperature in the two-phase area after casting, the structure will assume a form in which the .alpha.-phase is globular (RE=rare earth metal). The size of the spheres will be dependent on the temperature and the holding time at that temperature and they will be surrounded by a low-smelting matrix. It is preferable that the alloy has a grain size of not greater than <100 .mu.m, more preferably 50-100 .mu.m.

Abstract: An energy absorbing structure is employed in a front or rear portion of a vehicle body. The structure is in the form of a unitary and one-piece longitudinally extending aluminum or aluminum alloy member that is extruded to have a substantially uniform cross section. The member is subjected to an aging heat treatment operation to impart a material strength to the member. Subsequently, at least one longitudinal zone of the member is subjected to an overaging heat treatment to thereby lower the material strength of such zone. As a result, by the member being subjected to longitudinally differential heat treatment, the member has material strengths differing longitudinal of the member. Upon an impact being imparted to the portion of the vehicle body, a force acting on the member will cause the zone thereof to be subjected to axial compression deformation.

Abstract: An apparatus for replacement of a swivel atop a first, operating foundation on a turret of a production ship or offshore platform comprises a swivel lifting and moving apparatus for taking a swivel off or replacing a swivel on the first operating foundation on the turret and a second storing foundation spaced from the turret. The apparatus also comprises storage for supporting and moving at least one used and one spare swivel in connection with the second storing foundation, and a guiding system on the first and second foundations and on the swivel for accurately positioning the swivel onto a desired foundation.

Abstract: Air reactivity, CO.sub.2 and soot index of a carbon product is determined. The air reactivity and CO.sub.2 reactivity of a sample of a carbon product are determined on the basis of the same test of the same sample. Air reactivity is analyzed first and, when such analysis is finished, CO.sub.2 reactivity is automatically analyzed on the same sample. The soot index is determined by collecting and weighing soot dust. A vertical tube furnace includes an inlet for the introduction of gas, and a sample holder which is freely suspended from a weighing device and extends down into the tube furnace. The sample holder is provided with one or more thermocouples for registering temperature of a carbon product.

Abstract: A pneumatic metering device for metering powdered materials, for example in connection with feeding aluminum oxide and aluminum fluoride to an electrolysis cell for production of aluminum, includes a container in the form of a relatively long, closed channel or similar structure. A fluidizing element is fitted in the base of the channel for supply of air for fluidization of material which is located in the channel. The container is fitted with an inlet for feeding material to the container from a store in the form of a silo or similar and an outlet for metered discharge of material from the container. The area below the inlet is inactive and is not supplied with fluidizing air, whereas air is supplied intermittently to the fluidizing element which is designed to cover essentially all other parts of the base of the channel.

Abstract: The present invention relates to a method of manufacturing free-flowing ammonium nitrate particles, applying an inorganic coating. The invention also comprises an anti-caking coating.

Abstract: A ring section furnace device for the calcination of carbon bodies includes a number of serially connected chambers with or without lids on top. Each chamber contains a number of cassettes the walls of which have therein vertical and/or horizontal flue gas channels. A flue gas exhaust system from each chamber leads to a main ring duct. The furnace is fitted with an additional, separately attached ring duct, and each of the chambers is fitted with a recovery device in the form of a lid, manifold, or a similar device with a closeable opening or joining pipe, which allows for exhaust removal of the air used for cooling the cassettes through a pipe connection fitted between the additional ring duct and the recovery device on the chamber.

Abstract: An intrusion beam for reinforcing a body panel of a vehicle and a vehicle door is formed by a unitary extruded elongated multichamber shape. The beam is longitudinally split from one end so that resulting individual internal chambers extend at acute angles in relation to the longitudinal axis of the beam. Connection between the intrusion beam and a door frame is provided by spot welding bimetallic strips to respective ends of the beam.

Abstract: An extruder with an air evacuation mechanism includes a cylinder with a die mounted at an outlet end and a piston movable between a position outside an opposite inlet end and a position inside the cylinder. A separate sealing device is mounted at the inlet end and accompanies the piston when it is retracted from the cylinder. The sealing device includes a casing with sealing rings mounted on the piston or a piston rod thereof.

Abstract: A wax appearance point in a petroleum produce is determined by measuring change in volume as a function of temperature. The appearance point appears as a deviation from a rectilinear graph. The quantity of wax which appears is determined by comparing a measured volume graph as a function of temperature with an estimated volume graph.

Abstract: The present invention relates to a fertilizer composition comprising solution or dispersion of nutrient compounds and method for its manufacture. The solution/dispersion constitutes the discontinuous phase of a water-in-oil type (w-i-o) emulsion having a volume phase ratio, discontinuous phase: total volume in the range of 0.80-0.95. The fertilizer composition may additionally contain 0-60 weight % solid nutrient salts and/or urea. The oil or hydrocarbon component of the w-i-o emulsion comprises mineral, vegetable or animal oils, wax or mixture of these, and the emulsion comprises at least one w-i-o emulsifier. The hydrocarbon component may also contain 0.5-6 weight % of elastomer, preferably polyisobutylene. The method comprises dissolving or dispersing the nutrient compounds at a temperature of 5.degree.-15.degree. C.

Abstract: A method for filling an FIBC includes causing particulate material to flow from a container under gravity through a filling duct into a liner of the FIBC. The particulate material is caused to adopt a free fall generally laminar flow stream which over substantially all of its length does not contact the wall of the filling duct. Accordingly formed adjacent such stream is an air passage through which passage at least part of air displaced from the interior of the liner by the particulate material can escape without significantly disrupting the flow of particulate material.

Abstract: A production pipe for production of oil or gas from a well in an oil and/or gas reservoir, or for injection of fluids into a well in an oil and/or gas reservoir, includes a production pipe with a lower drainage pipe. The drainage pipe is divided into sections with one or more inflow restriction devices which control the flow of oil or gas from the reservoir into the drainage pipe on the basis of calculated loss of friction pressure along the drainage pipe, the calculated productivity profile of the reservoir, and the calculated inflow of gas or water.

Abstract: The invention provides a method and an apparatus for measuring asphaltene precipitation in a petroleum product. The inventive method quantifies the precipitation by measuring changes in the petroleum product's conductivity or capacitance. The inventive apparatus comprises a measuring cell adapted to be filled with a petroleum product or a solution of the product and a flocculant, together with an instrument electrically coupled to the measuring cell for measuring the product's or solution's conductivity or capacitance.

Abstract: A system for turning a swivel aboard a vessel for oil extraction at sea includes a stationary swivel part connected to a rotary drilling rig on the vessel and one or more rotating parts connected to the vessel. The rotating swivel parts are connected to a torsionally rigid vertical frame structure via a drive mechanism which transmits rotary motion between the vessel and the swivel without angular displacement or significant reactive forces in the frame structure. The vertical frame structure includes four walls where one of the walls forms a gate for the insertion and removal of an entire swivel or parts of a swivel. The frame structure is attached to an overhead frame that extends across the diameter of the rotary drilling rig and is secured to the hull of the vessel.

Abstract: Injection equipment for the supply of gas and/or particulate material in the form of powder, granules, chips or similar shapes to a liquid, for example a metal melt, includes a rotation body which is designed to be lowered down into the liquid and which is mounted on and driven via a shaft of a drive unit. The material and/or gas is supplied to the liquid through the rotation body via a coaxial bore in a shaft thereof. The rotation body has a cone-like or funnel-like design and is generally completely open at the bottom.

Abstract: Structural members are extruded with respective abutted edge portions having a transverse cross-sectional configuration complementarily shaped with locking tabs and undercut recesses. The tabs of a first member are interconnected by a unitary transversely extending and inwardly arcuate web. Such web is permanently deformed in a joining process by a deformation tool forcing the outwardly projecting tabs into locking engagement with the second member.

Abstract: A blow-out prevention device shuts off an annulus between a drill column and a well wall by means of an expandable sealing device when an unwanted blow-out of fluid and/or gas takes place from an unstable geological well formation when drilling for oil or gas.When a blow-out takes place, a compressive-pulse code is activated in the inlet of the drill column and is transmitted through the drilling fluid to a pressure sensor which transmits the compressive-pulse code on to a microprocessor (37) which is preprogrammed with the pressure code. If the pressure codes coincide, an electric motor is activated, which, via a set of gears and a nut-and-bolt device, displaces a valve plate axially towards a valve seat. The drilling fluid then flows out through nozzles and causes a large pressure drop which is used to expand the sealing device so that the annulus is shut.

Abstract: Reactive metal granules, especially of magnesium and/or magnesium alloys, are produced directly from molten metal. The metal is fed under pressure to a granulation nozzle which forces the metal to acquire a circular motion of increasing velocity before it reaches the outlet of the nozzle and disintegrates successively into small fragments and droplets. These fragments and droplets are formed in an inactive gas atmosphere in an enclosed system and are thereafter solidified and cooled in a nonoxidizing cooling bath. An apparatus includes a granulation chamber made up of two parts which can be fitted to each other at various positions with an air tight locking system.