| Patent Number |
Title Of Patent |
Date Issued |
| D301793 |
Container for transportation of cryogenic gases |
June 20, 1989 |
|
| D277977 |
Spherical gas container |
March 12, 1985 |
|
| D267186 |
Combined valve assembly and frame head for the transport and handling of gas cylinders |
December 7, 1982 |
|
| D265603 |
Support frame for transport and handling of gas cylinders |
July 27, 1982 |
|
| D265602 |
Combined gas cylinders and support frame for transport and handling thereof |
July 27, 1982 |
|
| 6991705 |
Process for stabilizing the PH of a pulp suspension and for producing paper from the stabilized |
January 31, 2006 |
| The invention relates to a process for stabilizing the pH of a pulp suspension with buffering agents and to a process for producing paper from a stabilized pulp suspension. The alkalinity of the pulp suspension is increased by a combination of an alkali metal hydroxide feed and a car |
| 6989043 |
Method and an apparatus for recovery of metals |
January 24, 2006 |
| A method for recovery of metals from essentially metallic fines comprises the following steps: supplying said essentially metallic fines to a flame of a burner (20), bringing said fines to agglomerate by means of heat from the flame without essentially changing the chemical composition |
| 6923129 |
Method and treatment of sludge having particles comprising metal, metal oxide or metal hydroxide |
August 2, 2005 |
| A method for treatment of sludge is disclosed, wherein the sludge has a liquid part and metal-containing particles intermixed therein. The particles comprise metal, metal oxide or metal hydroxide and the method comprises the following steps: atomising the sludge; supplying the atomis |
| 6691358 |
Oxidized white liquor in an oxygen delignification process |
February 17, 2004 |
| The invention refers to a method for an integrated treatment of cellulose pulp. The method includes the steps: providing said cellulose pulp (1), providing a determined quantity of white liquor (2) including alkali and sulphur components, providing an oxygen-containing gas, oxidizing (5) |
| 6679972 |
Process for the bleaching of a pulp suspension by separating calcium from lignin |
January 20, 2004 |
| A process for the bleaching of lignin present in pulp fibers in an aqueous environment such as a pulp suspension. The invention also relates to a process for producing paper or board from pulp containing bleached lignin. According to the invention carbon dioxide is used for the bleaching |
| 6666999 |
Gas assisted moulding |
December 23, 2003 |
| The present invention relates to the fabrication of a moulded detail in a gas assisted moulding process, wherein molten polymer (23) is injected into the mould cavity (21) of a moulding tool, pressurized fluid (25) is supplied to the mould cavity through at least a first opening (22) to |
| 6634544 |
Method and arrangement for improving quality in fusion welding operations |
October 21, 2003 |
| Arrangement for improving quality in fusion welding operations where protective gas is supplied to the welding point via a hose line. The arrangement comprises means (5, 6), such as a bypass line connected parallel to the solenoid valve (4) which is usually connected into the protect |
| 6623599 |
Process for producing a paper web having calcium carbonate filler by introducing carbon dioxide |
September 23, 2003 |
| A papermaking process wherein calcium carbonate is included in a pulp suspension. The dissolution of the calcium carbonate in the papermaking system is substantially retarded by the introduction of carbon dioxide to said pulp suspension. The invention also provides processes for the |
| 6619069 |
Flexible conveyor belt and a climate chamber comprising a belt of that kind |
September 16, 2003 |
| Flexible conveyor belt of the type which can be assembled to form an endless loop, a part of which forms a number of layers stacked one on another. The belt (3) is constructed from mutually articulatable links which each comprise at least two transverse rods (13) which, at each side |
| 6589387 |
Process for improving the drainage of cellulosic pulps by adding carbon dioxide directly into th |
July 8, 2003 |
| The invention relates to a process for improving the drainage or dewatering of cellulosic pulp suspensions in a paper making machine, a drying machine or the like assembly. The invention also relates to a process for producing a dried cellulosic product from said pulp suspension. The |
| 6540878 |
Stabilized filler, its production and use |
April 1, 2003 |
| The present invention relates to a stabilized calcium carbonate filler, a process for stabilizing calcium carbonate, the use of the stabilized filler in a paper making system, and an improved paper making process wherein calcium carbonate is used as a filler. Specifically, the invention |
| 6540870 |
Process for substantially retarding dissolution of calcium carbonate in a papermaking system |
April 1, 2003 |
| The invention relates to papermaking processes wherein calcium carbonate is included in a pulp suspension. The dissolution of the calcium carbonate in the papermaking system is prevented or substantially retarded by the introduction of carbon dioxide to said pulp suspension in connection |
| 6412288 |
Point cooling |
July 2, 2002 |
| The present invention relates to a method and a device for point cooling. The cooling device comprises a cooling channel provided with a defined small end surface (9, 39) and an outlet valve (11) separated therefrom, a container (13) with liquid carbon dioxide and an access conduit (15a- |
| 6223745 |
Method and a device for producing a fine homogeneous aerosol |
May 1, 2001 |
| A nebulizer and method for forming a finely atomized aerosol are provided. A first aerosol is formed by passing a gas jet across the mouth of a liquid channel that communicates with a liquid reservoir. The first aerosol then strikes a stop surface and is converted into a second, more |
| 6186540 |
Method of filling an empty, flexible container, and a container device |
February 13, 2001 |
| The present invention relates to apparatus for filling an empty, flexible container (8) with gas essentially instantaneously when subjected to powerful retardation forces, wherein the gas-filled container (8) functions as a force-absorbing cushion which protects against injuries, whe |
| 6172183 |
Process and apparatus for the cleaning of crude tall oil soap |
January 9, 2001 |
| The present invention relates to a process and apparatus for the cleaning of crude tall oil soap. Crude soap floating on top of a layer of black liquor is cleaned with carbon dioxide, in a tall oil recovery system containing a cleaning vessel (T) for crude tall oil soap and black liquor. |
| 6073864 |
Metering expansion nozzle for CO.sub.2 |
June 13, 2000 |
| An expansion nozzle (20) for making carbon-dioxide snow from liquid carbon dioxide, for spraying refrigerated or frozen items (2), nozzle has an integrated metering valve (30) with a discharge aperture (32), an intake-side valve seat (33), and a valve needle (31) adjustable relative |
| 6070653 |
Cylindrical vessel for separation |
June 6, 2000 |
| A separation device comprises a vessel (1) having an essentially circular cylindrical shape around a center axis (2), a first passage (4) provided in the cylindrical wall of the vessel and a second passage (5), provided in the cylindrical wall of the vessel on a diametrically opposite pa |
| 6068679 |
Process of and a device for producing a gas, containing at least one component, from a gas mixtu |
May 30, 2000 |
| A process and apparatus for separating a gas from a gas mixture. The apparatus includes a vessel having an interior with a bed of adsorbent disposed therein. First and second passages communicate with the interior of the vessel. In a first step, the gas mixture is fed to the bed via the |
| 6059925 |
Method to regenerate gas mixture in ozone-bleaching process |
May 9, 2000 |
| A method of treating cellulose pulp which is subjected to an oxygen-delignification stage (3), a washing stage (4), an ozone-bleaching stage (1) and a further bleaching stage, for instance a peroxide-bleaching stage (7). A gas mixture of oxygen and ozone is delivered to the ozone-ble |
| 5989492 |
Process including heating and cooling for production of an injection-moulded body |
November 23, 1999 |
| A process for production of a moulded ceramic and/or metallic body from a ductile material comprising one or more ceramic and/or metallic components, which material is fed into the pre-heated mould cavity (1) of a moulding tool. The moulded tool includes at least two mould parts (4, 5) |
| 5985097 |
Method for suppressing undesired effects of transition and alkaline metal compounds during bleac |
November 16, 1999 |
| A method that solves the problem of suppressing disturbing effects of transition and alkaline earth metal compounds during bleaching of chemically digested lignocellulosic pulp in a sequence with oxygen bleaching prior to oxidative stages with introduction of for instance ozone, supe |
| 5938866 |
Method and an apparatus for the treatment of components by a gas mixture |
August 17, 1999 |
| An apparatus for the treatment of components by means of a gas mixture, comprising mainly a first light gas and minor amounts of a second gas being heavier than the first gas, has a treatment chamber (10) in which the treatment occurs and a concentration, and purification device (19, 29, |
| 5925591 |
Process for the production of hollow carbon fiber membranes |
July 20, 1999 |
| A process for manufacturing a bundle of hollow carbon membranes comprising the steps of: (a) providing a bundle of hollow cellulose fibers; (b) removing substantially all the absorbed water from the said fibers; (c) heating the fibers to a range of temperatures where it pyrolyzes; (d) |
| 5860857 |
Method and apparatus for controlling the atmosphere of an essentially closed space |
January 19, 1999 |
| The invention relates to a method for regulating the atmosphere in a substantially closed sports/exercise space (1) or an animal shelter (11), especially in terms of partial oxygen pressure. In the method, the normal atmosphere of said space (1; 11) is admixed with nitrogen for the creat |
| 5820161 |
Apparatus and method for filling an airbag |
October 13, 1998 |
| The present invention relates to a system for filling an empty flexible container such as an airbag with gas essentially instantaneously when the system or vehicle utilizing such system is subjected to sufficient deceleration forces, such as experienced during a collision. The gas-fi |
| 5792523 |
Krypton gas mixture for insulated windows |
August 11, 1998 |
| A mixture of noble gases having desirable insulative properties for use as a window fill gas is derived from an air separation process without substantial further separation or concentration of the noble gases in the mixtures. The mixture of noble gases is processed to form the fill gas |
| 5783000 |
Method for heat treatment of steel, and products of steel |
July 21, 1998 |
| A method for heat-treating steel, primarily strip-like or rod-like steel material, such as steel strip, steel sheet, steel rod or steel wire which have been rolled and heated in an oven or furnace to a surface temperature above about 900 degrees C. and thereafter cooled and optionally tr |
| 5711292 |
Means for producing an aerosol |
January 27, 1998 |
| The invention relates to a device for producing a fine inhomogeneous aerosol, comprising a liquid container (1) and a liquid-conducting pipe (2) whose outlet orifice (6) at one end is located in a first disc (5) and whose other end extends towards the container bottom, wherein the pi |
| 5695818 |
Method of improving the selectivity of carbon membranes by chemical carbon vapor deposition |
December 9, 1997 |
| A process for manufacturing carbon membranes having controlled pore sizes comprises the steps of: a) causing a stream of a pyrolysable carbon-containing gas to come into contact with a carbon membrane having a pore size and/or distribution larger than the desired pore size and/or dis |
| 5656054 |
Process and device for reheating glass gobs |
August 12, 1997 |
| A process and a device for reheating gobs of glass by means of a reheating drum are characterized by the fact that the heat-insulating lining of the reheating drum has a low heat-penetration factor, and an energy-rich combustion-gas mixture is used. In this way, the inner surface of the |
| 5649723 |
Coupling device |
July 22, 1997 |
| A coupling device for releasable and sealing connection to a tubular, externally threaded connector part. The device includes internally threaded segments which can swing radially to enable the coupling device to be connected to and released from the connector part. An axially movabl |
| 5632295 |
Method and an apparatus for adding a melodorant to a consumer gas |
May 27, 1997 |
| An arrangement for adding an odorant to a consumer gas which is distributed to a consumer site, in order to indicate to people in the vicinity of the risk of fire, explosion, poisoning, suffocation or some other danger, should consumer gas leak into the surrounding atmosphere. The odoran |
| 5582352 |
Method of preparing chemi-mechanical pulp |
December 10, 1996 |
| A method of producing chemimechanical pulp, comprises the steps of grinding wood in a grinding mill housed in a grinding chamber, maintaining the chamber at an overpressure, spraying water onto the wood, and supplying oxygen and/or hydrogen peroxide via the spray water to the grinding |
| 5527380 |
Recovery of non-ferrous metals from dross |
June 18, 1996 |
| A method for recovering non-ferrous metal from a dross that includes the non-ferrous metal includes introducing the dross into a rotary furnace or rotatable converter. The furnace or converter has a refractory lining. Oxygen and a fossil fuel are supplied to an oxy-fuel burner. The oxyge |
| 5527066 |
Airbag filling arrangement |
June 18, 1996 |
| The present invention relates to an arrangement for filling a flexible container with gas essentially instantaneously upon the occurrence of powerful retardation forces, wherein the gas-filled container functions as a force-absorbing cushion for protection against injury. The arrangement |
| 5516470 |
Method of tempering a molding tool |
May 14, 1996 |
| Method for tempering a molding tool intended for production of products of natural or synthetic polymers, which molding tool includes one or more molding parts (3, 4) made of sintered metal with communicating pores obtained by pressing at a high pressure and sintering at a high tempe |
| 5460761 |
Method for tempering a moulding tool |
October 24, 1995 |
| Method for tempering a moulding tool intended for production of products of natural or synthetic polymers, which moulding tool includes one or more moulding parts made of sintered metal with communicating pores obtained by pressing at a high pressure and sintering at a high temperature o |
| 5429717 |
Method of washing of alkaline pulp by adding carbon dioxide to the pulp |
July 4, 1995 |
| Method in the washing of alkaline, cellulosic pulp, for example sulphate pulp, CTMP and CMP pulp, the washing being effected in at least one stage. By an addition of carbon dioxide, there will be realized greatly reduced washing losses of, primarily, inorganic ions, as well as improved |
| 5367137 |
Method of producing a protective gas and a gas mixture therefor |
November 22, 1994 |
| The present invention relates to a method of producing a protective gas consisting of 0.0010-0.100 percent by volume nitric-oxide, 0-90 percent by volume helium, 0-5 percent by volume hydrogen, 0-50 percent by volume carbon dioxide, and the remainder argon. The invention also relates to |
| 5275446 |
Twist coupling for vacuum pipes |
January 4, 1994 |
| A device is adapted for coupling together two vacuum lines, such that when coupled the lines can be rotated relative to each other. Each of the vacuum lines includes two mutually concentric pipes which define a vacuum space therebetween. The coupling device includes a first coupling part |
| 5274896 |
Destruction and re-use of mineral wool scrap |
January 4, 1994 |
| A method of destructing mineral-wool scrap and reusing the scrap in the manufacture of mineral wool includes introducing the mineral-wool scrap in a finally divided state into a container causing the finely-divided mineral-wool scrap to pass through a heating zone generated by an oxygen |
| 5211743 |
Treatment of a melt with a gas and means therefor |
May 18, 1993 |
| An arrangement for use when treating a melt, particularly a metal melt (2) in a converter (1) with gas, for the purpose of intensifying and rendering effective the contact between gas and melt and to produce effective admixture of the gas with the melt. The arrangement includes at least |
| 5194096 |
Carburizing treatment of a steel with reduction of the hydrogen content in the carburized layer |
March 16, 1993 |
| Steel is carburized at a temperature within the austenitic range and in an atmosphere which comprises nitrogen, hydrogen and carbon monoxide, by lowering the hydrogen concentration in the treatment atmosphere prior to cooling steel in oil, salt or water, so as to reduce the hydrogen |
| 5104310 |
Method for reducing the flame temperature of a burner and burner intended therefor |
April 14, 1992 |
| A method for reducing the flame temperature of an oxy-fuel burner, such a burner comprising a central oxygen nozzle at least one fuel nozzle radially spaced from the central oxygen nozzle, and at least one peripheral oxygen nozzle at greater radial distance from the central oxygen no |
