Patents by Inventor Charles A. Burrows

Charles A. Burrows has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050227601
    Abstract: A bladed lever for cutting through or splitting animal bones having a head, a handle and a knife with the head having two sides with a row of teeth at the bottom of each side to grip the bone to be cut or split and the knife having a blade positioned below and between the two sides of the head at a distance to permit the bone to be split to fit between the teeth of the head and the blade of the knife.
    Type: Application
    Filed: March 8, 2004
    Publication date: October 13, 2005
    Inventors: Gregory Whetstone, Charles Burrows
  • Patent number: 6399016
    Abstract: Direct smelting plant for producing molten metal from a metalliferous feed material induces a smelting vessel 11 to hold a molten metal and slag bath beneath a hot gas space. Solids injection lances 27 extend downwardly and inwardly through side walls of the vessel and hot oxidising gas is directed downwardly into the gas space by a central vertical gas injection lance 26. The plant layout is divided into four functional zones spaced circumferentially around vessel 11 and radiating outwardly from the vessel. Zone 1 contains an overhead hot gas delivery duct 31 supplying gas to lance 26 and an offgas duct 32; Zone 2 contains a forehearth 19 and forehearth tapping launder 34; Zone 3 contains slag notches 45 and slag launders 46; and Zone 4 contains a primary slag drain taphole and launder 48. This layout minimises the potential for interference between the transport of the hot gases, the metaliferous feed material, and the molten metal and slag.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 4, 2002
    Assignee: Technological Resources Pty. Ltd.
    Inventor: Andrew Charles Burrow
  • Publication number: 20010022417
    Abstract: Direct smelting plant for Producing molten metal from a metalliferous feed material induces a smelting vessel 11 to hold a molten metal and slag bath beneath a hot gas space. Solids injection lances 27 extend downwardly and inwardly through side walls of the vessel and hot oxidising gas is directed downwardly into the gas space by a central vertical gas injection lance 26. The plant layout is divided into four functional zones spaced circumferentially around vessel 11 and radiating outwardly from the vessel. Zone 1 contains an overhead hot gas delivery duct 31 supplying gas to lance 26 and an offgas duct 32; Zone 2 contains a forehearth 19 and forehearth tapping launder 34; Zone 3 contains slag notches 45 and slag launders 46; and Zone 4 contains a primary slag drain taphole and launder 48. This layout minimises the potential for interference between the transport of the hot gases, the metaliferous feed material, and the molten metal and slag.
    Type: Application
    Filed: March 5, 2001
    Publication date: September 20, 2001
    Inventor: Andrew Charles Burrow
  • Patent number: 5855645
    Abstract: A method for producing a more concentrated iron product from an industrial waste materials stream comprising iron and non-iron constituents such as EAF and basic oxygen furnace dust generally comprising the steps of compacting or briquetting the waste materials stream, roasting the waste materials stream at temperatures above about 980.degree. C. to convert the iron compounds to direct reduced iron, crushing the roasted waste materials stream, separating the iron compounds contained in the waste materials stream by magnetic separation or flotation, and providing the iron compounds back to the EAF or basic oxygen furnace.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: January 5, 1999
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles W. Sanzenbacher, Peter Robinson, Charles A. Burrows, Paul R. DiBella
  • Patent number: 5849063
    Abstract: A method for producing direct reduced iron or/and pig iron from an industrial waste materials stream such as EAF and blast furnace dust generally comprising the steps of separating the materials contained in the waste materials stream by magnetic separation or flotation, briquetting the iron-containing materials separated during the separation process with carbon, and providing the briquettes to a reduction furnace or/and to a small scale blast furnace or cupola furnace to produce direct reduced iron or/and pig iron, respectively. The exhaust streams from the process are further treated to recover chemical values and to allow the recycle of the exhaust streams to the main process.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: December 15, 1998
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles W. Sanzenbacher, Peter J. Robinson, Charles A. Burrows, Paul R. DiBella
  • Patent number: 5683488
    Abstract: A method for the recovery of iron products, specifically direct reduced iron and iron oxide suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by treating the waste streams with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron feedstocks.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: November 4, 1997
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles A. Burrows, Paul R. DiBella
  • Patent number: 5667555
    Abstract: A method for the removal of calcium byproducts created during the production of an iron-based feedstock suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by treating the waste stream with an ammonium chloride leaching solution, treating the leachant with a soluble ammonium salt in which the negative ion will form an insoluble compound with calcium, and separating the undissolved precipitates comprising iron compounds and calcium compounds from the leachant solution. The undissolved precipitants may be treated further by elevated temperature roasting, resulting in the iron-based feedstocks.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: September 16, 1997
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles A. Burrows, Charles W. Sanzenbacher, Paul R. DiBella
  • Patent number: 5582631
    Abstract: A method for the production of an iron-based feedstock suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by combining an iron poor material such as exhaust fumes from metals production processes with the waste streams, treating the combined waste stream with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron-based feedstocks.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: December 10, 1996
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles A. Burrows, Charles Sanzenbacher, Paul R. DiBella
  • Patent number: 5571306
    Abstract: A method for the production of an enriched iron product, specifically direct reduced iron and iron oxide suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by combining an iron oxide rich material such as mill scale and/or used batteries with the waste streams, treating the combined waste stream with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron feedstocks.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: November 5, 1996
    Assignee: Metals Recycling Technologies Corp.
    Inventors: Allan S. Myerson, Charles A. Burrows, Paul R. DiBella
  • Patent number: 4667897
    Abstract: An armored cable dispenser includes a base, a drag plate fixedly attached to the base, a shaft extending upwardly from the base and a tray rotatably resting on the drag plate and surrounding the shaft. An annular rail is supported above the tray on vertical supports which contain a coil of cable on the tray. A central tube around the shaft supports a lid the edge of which defines an annular gap with the rail through which cable can be pulled. A removable lock holds the lid in place.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: May 26, 1987
    Inventors: Charles A. Burrow, Edwin D. Anders