Patents by Inventor Alvaro Giron

Alvaro Giron 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: 20160008881
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Kenneth Joseph Kallaher, Jeffrey J. Shaw
  • Patent number: 7951468
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: May 31, 2011
    Assignee: Alcoa Inc.
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Kenneth Joseph Kallaher, Jeffrey J. Shaw
  • Publication number: 20110100579
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Application
    Filed: December 31, 2010
    Publication date: May 5, 2011
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Kenneth Joseph Kallaher, Jeffrey J. Shaw
  • Publication number: 20080182122
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Application
    Filed: March 31, 2008
    Publication date: July 31, 2008
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Kenneth Joseph Kallaher, Jeffrey J. Shaw
  • Patent number: 7377304
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: May 27, 2008
    Assignee: Alcoa Inc.
    Inventors: Men G. Chu, Ho Yu, Alvaro Giron, Ken Kallaher, Jeffrey J. Shaw
  • Publication number: 20080000608
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casing, and low stresses throughout the casting.
    Type: Application
    Filed: June 20, 2007
    Publication date: January 3, 2008
    Inventors: Men Chu, Ho Yu, Alvaro Giron, Ken Kallaher
  • Patent number: 7264038
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: September 4, 2007
    Assignee: ALCOA Inc.
    Inventors: Men G Chu, Ho Yu, Alvaro Giron, Ken Kallaher
  • Publication number: 20070012417
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 18, 2007
    Inventors: Men Chu, Ho Yu, Alvaro Giron, Kenneth Kallaher, Jeffrey Shaw
  • Publication number: 20070012416
    Abstract: Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow rate of the cooling medium being varied to produce a controlled cooling rate throughout the casting process. The rate of introduction of molten metal and the flow rate of the cooling medium are both controlled to produce a relatively uniform solidification rate within the mold, thereby producing a uniform microstructure throughout the casting, and low stresses throughout the casting.
    Type: Application
    Filed: July 12, 2005
    Publication date: January 18, 2007
    Applicant: ALCOA INC.
    Inventors: Men Chu, Ho Yu, Alvaro Giron, Ken Kallaher
  • Patent number: 7000676
    Abstract: A DC casting mold for casting molten metal alloy comprising a cooled tubular body that has a thermally insulated insert attached to its top surface. The thermally insulated insert has a bottom portion with a beveled sidewall, which forms an angle with the horizontal melt surface layer of the molten metal and creates an eddy. The eddy causes a substantial number of oxides that are formed during the casting process to remain in the bottom sidewall portion of the thermally insulated insert of the mold, thereby substantially reducing the number of ingot surface imperfections that promote ingot cracking. In addition, the eddy promotes break-up of the oxides into smaller pieces as the oxides flow toward the cooled inner walls of the cooled tubular body, thereby having limited surface area for growth of oxide folds. A method of casting molten metal alloys with improved surface quality is also disclosed.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 21, 2006
    Assignee: Alcoa Inc.
    Inventors: Men G. Chu, Alvaro Giron, William A. Casada, Ho Yu
  • Publication number: 20050284603
    Abstract: A DC casting mold for casting molten metal alloy comprising a cooled tubular body that has a thermally insulated insert attached to its top surface. The thermally insulated insert has a bottom portion with a beveled sidewall, which forms an angle with the horizontal melt surface layer of the molten metal and creates an eddy. The eddy causes a substantial number of oxides that are formed during the casting process to remain in the bottom sidewall portion of the thermally insulated insert of the mold, thereby substantially reducing the number of ingot surface imperfections that promote ingot cracking. In addition, the eddy promotes break-up of the oxides into smaller pieces as the oxides flow toward the cooled inner walls of the cooled tubular body, thereby having limited surface area for growth of oxide folds. A method of casting molten metal alloys with improved surface quality is also disclosed.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 29, 2005
    Inventors: Men Chu, Alvaro Giron, William Casada, Ho Yu
  • Publication number: 20050043189
    Abstract: In an oxidation inhibiting lubricant composition suitable for use in the manufacture of aluminum alloys comprising lubricant base selected from the group consisting of solid lubricants, liquid lubricants, grease lubricants, emulsion lubricants, and dispersion lubricants, the improvement wherein the lubricant composition further comprises: an effective amount of a fluorine-containing passivating compound.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 24, 2005
    Inventors: Patricia Stewart, Ray Richter, Thomas Kasun, Joseph Laemmle, Nickolas Kotow, David DeYoung, J. Kirby, Alvaro Giron, Raymond Colbert, Larry Wieserman
  • Patent number: 5232042
    Abstract: A mold for casting metal ingot sows having an aspect ratio of at least 4:1. The mold comprises a bottom wall from which a side wall extends upwardly and outwardly and from which heat transfer structure extends downwardly for transferring heat away from the bottom wall.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: August 3, 1993
    Assignee: Aluminum Company of America
    Inventors: Alvaro Giron, John E. Jacoby, Ho Yu