Patents by Inventor David A. Tomes, Jr.

David A. Tomes, Jr. 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).

  • Patent number: 10266921
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: April 23, 2019
    Assignee: Arconic Inc.
    Inventors: Ali Unal, David A. Tomes, Jr., Gavin Wyatt-Mair, David Timmons
  • Publication number: 20170218486
    Abstract: Systems and methods for continuously casting Al-Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al-Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 3, 2017
    Inventors: Ali Unal, David A. Tomes, JR., Gavin Wyatt-Mair, David Timmons
  • Publication number: 20150191810
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt, % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 9, 2015
    Inventors: Ali Unal, David A. Tomes, JR., Gavin Wyatt-Mair, David Timmons
  • Patent number: 8956472
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: February 17, 2015
    Assignee: Alcoa Inc.
    Inventors: Ali Unal, David A. Tomes, Jr., Gavin Wyatt-Mair, David Timmons
  • Patent number: 8697248
    Abstract: The present invention discloses an aluminum alloy product having a first outer layer, a central layer, and a second outer layer. The central layer of the aluminum alloy product has a higher concentration of particulate matter than said first or second outer layers. The particular matter has a size of at least about 30 microns. And, the aluminum alloy product has a thickness ranging from between about 0.004 inches to about 0.25 inches.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 15, 2014
    Assignee: Alcoa Inc.
    Inventors: David A. Tomes, Jr., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Patent number: 8403027
    Abstract: The present invention discloses a method of strip casting an aluminum alloy from immiscible liquids that yields a highly uniform structure of fine second phase particles. The results of the present invention are achieved by using a known casting process to cast the alloy into a thin strip at high speeds. In the method of the present invention, the casting speed is preferably in the region of about 50-300 feet per minute (fpm) and the thickness of the strip preferably smaller than 0.08-0.25 inches. Under these conditions, favorable results are achieved when droplets of the immiscible liquid phase nucleate in the liquid ahead of the solidification front established in the casting process. The droplets of the immiscible phase are engulfed by the rapidly moving freeze front into the space between the Secondary Dendrite Arms (SDA).
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 26, 2013
    Assignee: Alcoa Inc.
    Inventors: David A. Tomes, Jr., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Patent number: 8381796
    Abstract: A method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter, the particulate matter having a size of at least about 30 microns. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product including a central layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: February 26, 2013
    Assignee: ALCOA Inc.
    Inventors: David A. Tomes, Jr., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Publication number: 20110042032
    Abstract: The present invention discloses a method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter, the particular matter having a size of at least about 30 microns. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a product comprising a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product comprised of a central layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces.
    Type: Application
    Filed: October 28, 2010
    Publication date: February 24, 2011
    Inventors: David A. Tomes, JR., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Publication number: 20110036464
    Abstract: The present invention discloses an aluminum alloy product having a first outer layer, a central layer, and a second outer layer. The central layer of the aluminum alloy product has a higher concentration of particulate matter than said first or second outer layers. The particular matter has a size of at least about 30 microns. And, the aluminum alloy product has a thickness ranging from between about 0.004 inches to about 0.25 inches.
    Type: Application
    Filed: October 28, 2010
    Publication date: February 17, 2011
    Inventors: David A. Tomes, JR., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Patent number: 7846554
    Abstract: The present invention discloses a method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a product comprising a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product comprised of an inner layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces. The method yields an MMC having a central layer enriched with particulate matter and sandwiched between metallic outer layers.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: December 7, 2010
    Assignee: Alcoa Inc.
    Inventors: David A. Tomes, Jr., Gavin F. Wyatt-Mair, David W. Timmons, Ali Unal
  • Publication number: 20100119407
    Abstract: Systems and methods for continuously casting Al—Mg alloy sheet or plate product having a high amount of magnesium are disclosed. The Al—Mg products have 4 or 6 to 8 or 10 wt. % Mg and are resistant to both stress corrosion cracking and intergranular corrosion.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 13, 2010
    Applicant: Alcoa Inc.
    Inventors: Ali Unal, David A. tomes, JR., Gavin Wyatt-Mair, David Timmons