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A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 7968047 | Blaster nozzle A novel blaster nozzle (10) used for assisting in the pneumatic removal of cloggings and cakings during the transport of particulate matter through an enclosure housing is set such that it can be removed and replaced from outside the enclosure housing. The bl... | 06/28/2011 |
| 7402275 | Powder body melting burner A powder body melting burner which injects a powder body, fuel and oxygen into a furnace individually from a burner head and melts the powder body in flames in which the fuel is burned under oxygen support. The burner includes a single powder body injection hole pro... | 07/22/2008 |
| 7276205 | Injection device and process for the injection of a fluid The invention relates to an injection device for the reliable introduction of a fluid into a metallurgical vessel having a refractory lining, the device being removably insertable in the lining; comprising a refractory first body (2) and a refractory second b... | 10/02/2007 |
| 7235614 | Methods for injecting catalyst into a polymerization reactor A polymerization process and a catalyst delivery system are provided. For example, a polymerization process is described, including providing a conduit having a catalyst inlet, a first propylene stream inlet located downstream of the catalyst inlet, and a second pro... | 06/26/2007 |
| 7232868 | Methods of delivering catalyst systems for propylene polymerization A polymerization process is provided. For example, a polymerization process is described, including providing a catalyst slurry having a metallocene catalyst and a first oil, providing a transport medium including a second oil and combining the transport medium and ... | 06/19/2007 |
| 7141630 | Methods of feed purification for olefin polymerization A polymerization process is provided. For example, a polymerization process is described, including contacting olefin monomers with a supported metallocene catalyst to polymerize the olefin monomers and form a product mixture that includes polyolefins macromers or p... | 11/28/2006 |
| 7138085 | Tuyere cooling system A tuyere cooling system which includes a coolant circuit for a body section and nose section. A valve is operable to connect the coolant circuits in series or to disconnect flows to the nose section of the tuyere so that if the nose of the tuyere tears during operat... | 11/21/2006 |
| 7104069 | Apparatus and method for improving combustion stability A fuel nozzle for use in a gas turbine combustor is provided having the capability of injecting multiple fuel types as well as steam for NOx reduction. Combustion dynamics within a combustor due to the mal-distribution of steam are controlled by the placement of a m... | 09/12/2006 |
| 7024750 | Method for the manufacture of layered metal product slabs and layered metal product slabs A method for the production of a layered metal slab by casting, which strip contains a central layer (2) and surface layers (3) on either side of it. The central layer (2) is introduced as a strip through a mould (4), into which is introd... | 04/11/2006 |
| 6491863 | Method and apparatus for efficient utilization of a cryogen for inert cover in metals melting furnaces Methods and apparatus for efficient utilization of a cryogen in inerting of solid and molten metals are presented. One method and apparatus of the invention includes providing a source of liquid cryogen; transporting the liquid cryogen through a conduit c... | 12/10/2002 |
| 6446565 | Blast tuyere for shaft furnaces, in particular blast furnaces or hot-blast cupola furnaces A blast tuyere for shaft furnaces, includes a conical hollow main body having inner and outer casings defining a hollow space and interconnected by a tuyere nose. The outer casing is formed by a single-piece base body terminating smoothly in the tuyere no... | 09/10/2002 |
| 6368379 | Apparatus and method for producing reduced metal An apparatus for producing a reduced metal includes a moving hearth reducing furnace, a feeding section, a metal discharge section, a gas discharge section, and a regenerative burner. The moving hearth reducing furnace heats a raw material composed of a m... | 04/09/2002 |
| 6284189 | Nozzle for device to inject oxygen and technological gases and relative dimensioning method Nozzle for device to inject oxygen and technological gases used in metallurgical processing of metal melting, the nozzle being suitable to emit a gassy flow at supersonic velocity, the nozzle having a conformation symmetrical to a central axis (x) defined... | 09/04/2001 |
| 6245124 | Vertical shaft furnaces A vertical shaft furnace for melting scrap metal, particularly copper scrap, uses one or more burners operated superstoichiometrically in order to provide excess oxygen to react with a waste gas stream passing up through the copper scrap thereby reducing ... | 06/12/2001 |
| 6172367 | Method and device for measuring electromagnetic waves emanating from a melt In a method for determining electromagnetic waves originating from the interior of a melt (3), in particular a metal melt, a gas-filled hollow space (26) is formed within the melt (3) by blowing in gas and electromagnetic waves emitting from the melt (3) ... | 01/09/2001 |
| 6096261 | Coherent jet injector lance A lance which may be used to establish a long coherent gas jet which includes a primary passageway having a converging/diverging nozzle, and two radially spaced secondary passageways for establishing a flame barrier, each of the passageways communicating ... | 08/01/2000 |
| 6083296 | Method of producing metals and metal alloys A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterized by injecting a carrier gas and a solid car... | 07/04/2000 |
| 6010658 | Apparatus for desulfurization of iron utilizing two spaced apart lances A desulfurization apparatus which employs first and second separate independently movable spaced apart lances (10, 12), each lance having a single conduit (22) through which the desulfurization materials may flow from feed vessels (40, 42, 44, 46) into th... | 01/04/2000 |
| 5989488 | Blast tuyere of a blast furnace A blast tuyere of a blast furnace making it possible that the temperature of Cu of the outer surface of the tuyere is not overheated to its melting point or higher so as to prevent tuyere failure and endure long-term use. This tuyere comprises a tuyere tr... | 11/23/1999 |
| 5945063 | Bottom blown gas blowing apparatus for molten metal ladle The present invention relates to an apparatus for supplying bottom-blown gas through a porous plug in a ladle and for molten metal refining. A gas supply pipe 3 is connected to a bottom-blowing porous plug 2 attached at the bottom of a ladle 1. An accumul... | 08/31/1999 |
| 5928603 | Device for sealing a lance in an opening for introduction of the lance into a container under pressure A device for sealing a lance (12) in an opening in a container under pressure, in particular a shaft furnace, is described. The device comprises a first casing (46) with an end wall on the shaft furnace side and on the environment side, which are each pro... | 07/27/1999 |
| 5916512 | Method and apparatus for after-burning the combustible components of the atmosphere in metallurgical smelting vessels Method and apparatus for post-combustion (after-burning) of the combustible gases present in a metallurgical vessel used for smelting metals. A swirling flow of an oxidizing gas emanating from a radiant injector (10) having a funnel-shaped (conical) diffu... | 06/29/1999 |
| 5863490 | Gas blast nozzle for molten metal and method of using the same A gas blast nozzle for a furnace for processing molten metal has a prolonged service life and is free from gas leakage. The nozzle comprises a refractory block having a narrow straight bore and a small metal pipe slidably arranged in the straight bore. A ... | 01/26/1999 |
| 5803948 | Process and device for introducing gases into metal melts A process and a device for introducing gases into a metal melt contained in metallurgical vessels via ducts arranged in the refractory lining of the vessel. In order to permit deeper penetration of the jet of gas and better mixing with the melt, an oscill... | 09/08/1998 |
| 5746970 | Nozzle and method of blowing hot metal An annular nozzle for an oxygen lance, e.g. an oxygen lance for blowing steel in a converter, gives an annular hot spot on the liquid steel in the converter. When exiting the nozzle, the annular jet has disruptions that result in ambient atmosphere being ... | 05/05/1998 |
| 5635130 | Combined oxygen blowing/fuel burner lance assembly An improved oxygen blowing/fuel burner lance assembly for introducing, at selected times, a flow of oxygen and/or carbonaceous fuel material, such as fine-grained carbon or hydrocarbon gas (e.g., natural gas and the like), into an electric furnace vessel.... | 06/03/1997 |
| 5622673 | Gas purging means for wall-side installation in metallurgical melting vessels The present invention pertains to a gas purging means for wall-side installation in a metallurgical melting vessel.... | 04/22/1997 |
| 5593634 | Gas treatment of molten metals A method of and apparatus for treating molten metal to achieve effective removal of such unwanted inclusions as gases, alkali metals, entrained solids, and the like. The method comprises introducing molten metal into a trough, such as the trough provided ... | 01/14/1997 |
| 5573724 | Ladle port assembly A ladle port assembly having a longer use life than a conventional porous plug includes an inner refractory member constructed from a high-fired alumina-containing refractory material, a middle refractory member surrounding the inner member and also const... | 11/12/1996 |
| 5547170 | Gas and/or solid material blasting device for a metallurgical vessel and method of manufacture thereof A blasting device to be used to introduce a gas and/or a solid material into a metallurgical vessel such as a convertor includes a plurality of blasting tubes arranged in a tube bundle, with ends of the tubes being inserted into respective receiving bores... | 08/20/1996 |
| 5533713 | Gas and/or solid material blasting device for a metallurgical vessel and method of manufacture thereof A blasting device to be used to introduce a gas and/or a solid material into a metallurgical vessel such as a convertor includes a plurality of blasting tubes arranged in a tube bundle, with ends of the tubes being inserted into respective receiving bores... | 07/09/1996 |
| 5520374 | Device for coupling a metallurgical carriage to a flexible conduit A device for coupling a metallurgical carriage to a flexible conduit comprises a first half-coupling mounted on the metallurgical carriage and a second half-coupling connected to one end of the flexible conduit. A coupling station is located near a predef... | 05/28/1996 |
| 5437435 | Gas purging device The present invention pertains to a gas purging device for introducing gases and/or solid reactants into the metal melt of a metallurgical crucible, consisting of a gas purging plug, a well nozzle sleeve surrounding it, and/or a well nozzle surrounding th... | 08/01/1995 |
| 5435528 | Porous plug structure for aluminum furances A porous plug assembly for use in a vessel containing molten metal, such as a melting furnace or a holding furnace, for introducing fluxing or other gases into the molten metal. The porous plug assembly includes a frustoconical porous refractory core memb... | 07/25/1995 |
| 5377960 | Oxygen/carbon blowing lance assembly An oxygen/carbon blowing lance assembly for directing a supersonic flow of oxygen and a flow of graphite against the surface of molten bath in a steelmaking electric furnace. The two flows impinge upon the slag surface at discrete separate areas in the sl... | 01/03/1995 |
| 5371759 | D.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace For the purposes of better cooling and improving the starting conditions of a direct current arc furnace, there is provided a hearth electrode which comprises at least one metal bar passing through the hearth wall and which is cooled by at least one cooli... | 12/06/1994 |
| 5328157 | Method and an apparatus for sealing tuyeres in the surrounding refractory lining The invention relates to a method and an apparatus for sealing tuyeres and feed pipes installed in a refractory vessel lining. Seals known per se, in particular prestressable packings, are installed in the gap between the tuyere or feed pipe and the surro... | 07/12/1994 |
| 5329545 | Tuyere for installation in hearth of electric arc furnace Molten metal in an electric arc furnace is stirred by introducing a gas into the melt through tuyeres mounted in the hearth. Each tuyere has an inlet portion having a passage of relatively large diameter and an outlet portion having a passage of relativel... | 07/12/1994 |
| 5312092 | Gas purging plug The present invention pertains to a gas purging plug for metallurgical vessels with a gas connection pipe at the gas inlet-side, lower end.... | 05/17/1994 |
| 5310166 | Self-cooling lance or tuyere A self-cooling lance or tuyere for the conveying of gases, liquids or solids into or onto a metallurgical bath comprises a heat pipe or thermosiphon made of two tubular members adapted to be immersed in a furnace environment at one end, such tubular membe... | 05/10/1994 |
