Patents by Inventor Raul A. Martinez-Ayers

Raul A. Martinez-Ayers 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: 10252327
    Abstract: Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: April 9, 2019
    Assignee: ATI PROPERTIES LLC
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Patent number: 9545663
    Abstract: A method of assembling a centrifugal casting apparatus includes positioning a wedge on a rotatable axis and positioning at least two molds into sealing engagement with the wedge. Each of the at least two molds includes a front face and defines at least two cavities extending from the front face into the mold. A sprue chamber is defined and is structured to receive molten material, and at least a portion of the sprue chamber is defined by at least a portion of the front faces of the at least two molds.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: January 17, 2017
    Assignee: ATI PROPERTIES LLC
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Publication number: 20160332222
    Abstract: A method of assembling a centrifugal casting apparatus includes positioning a wedge on a rotatable axis and positioning at least two molds into sealing engagement with the wedge. Each of the at least two molds includes a front face and defines at least two cavities extending from the front face into the mold. A sprue chamber is defined and is structured to receive molten material, and at least a portion of the sprue chamber is defined by at least a portion of the front faces of the at least two molds.
    Type: Application
    Filed: July 25, 2016
    Publication date: November 17, 2016
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Patent number: 9475115
    Abstract: A centrifugal casting method for producing a casting of a metallic material comprises positioning a rotatable assembly comprising a plurality of gates and a plurality of cavities positioned about a sprue chamber. The plurality of gates and the plurality of cavities are positioned to receive molten metallic material from the sprue chamber in a general direction of centrifugal force. Each of the plurality of gates is coupled to one of the plurality of cavities, and at least two of the plurality of cavities are stacked. The method further comprises rotating the rotatable assembly. The method further comprises delivering a supply of molten metallic material to the sprue chamber.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 25, 2016
    Assignee: ATI Properties LLC
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Publication number: 20160221073
    Abstract: Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations.
    Type: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Patent number: 9364890
    Abstract: Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: June 14, 2016
    Assignee: ATI PROPERTIES, INC.
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Publication number: 20160059303
    Abstract: A centrifugal casting method for producing a casting of a metallic material comprises positioning a rotatable assembly comprising a plurality of gates and a plurality of cavities positioned about a sprue chamber. The plurality of gates and the plurality of cavities are positioned to receive molten metallic material from the sprue chamber in a general direction of centrifugal force. Each of the plurality of gates is coupled to one of the plurality of cavities, and at least two of the plurality of cavities are stacked. The method further comprises rotating the rotatable assembly. The method further comprises delivering a supply of molten metallic material to the sprue chamber.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Patent number: 9221096
    Abstract: A centrifugal casting apparatus includes a rotatable assembly to rotate about a rotation axis. The rotatable assembly includes a sprue chamber positioned about the rotation axis and is shaped to receive a supply of molten material. A first gate and a second gate are positioned to receive molten material from the sprue chamber in a general direction of centrifugal force. A first cavity and a second cavity are stacked and are respectively positioned to receive molten material from the first gate and the second gate in the general direction of centrifugal force.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 29, 2015
    Assignee: ATI PROPERTIES, INC.
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Publication number: 20150352633
    Abstract: Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 10, 2015
    Applicant: ATI PROPERTIES, INC.
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Publication number: 20140251570
    Abstract: A centrifugal casting apparatus includes a rotatable assembly to rotate about a rotation axis. The rotatable assembly includes a sprue chamber positioned about the rotation axis and is shaped to receive a supply of molten material. A first gate and a second gate are positioned to receive molten material from the sprue chamber in a general direction of centrifugal force. A first cavity and a second cavity are stacked and are respectively positioned to receive molten material from the first gate and the second gate in the general direction of centrifugal force.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: ATI PROPERTIES, INC.
    Inventors: John W. Foltz, IV, Raul A. Martinez-Ayers, Aaron L. Fosdick
  • Patent number: 6645323
    Abstract: A skinless metal alloy composition free of entrapped gas and comprising primary solid discrete degenerate dendrites homogeneously dispersed within a secondary phase is formed by a process wherein the metal alloy is heated in a vessel to render it a liquid. The liquid is then rapidly cooled while vigorously agitating it under conditions to avoid entrapment of gas while forming solid nuclei homogeneously distributed in the liquid. Agitation then is ceased when the liquid contains a small fraction solid or the liquid-solid alloy is removed from the source of agitation while cooling is continued to form the primary solid discrete degenerate dendrites in liquid secondary phase. The solid-liquid mixture then can be formed such as by casting.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: November 11, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: Merton C. Flemings, Raul A. Martinez-Ayers, Anacleto M. de Figueredo, James A. Yurko
  • Publication number: 20020096231
    Abstract: A skinless metal alloy composition free of entrapped gas and comprising primary solid discrete degenerate dendrites homogeneously dispersed within a secondary phase is formed by a process wherein the metal alloy is heated in a vessel to render it a liquid. The liquid is then rapidly cooled while vigorously agitating it under conditions to avoid entrapment of gas while forming solid nuclei homogeneously distributed in the liquid. Agitation then is ceased when the liquid contains a small fraction solid or the liquid-solid alloy is removed from the source of agitation while cooling is continued to form the primary solid discrete degenerate dendrites in liquid secondary phase. The solid-liquid mixture then can be formed such as by casting.
    Type: Application
    Filed: March 25, 2002
    Publication date: July 25, 2002
    Inventors: Merton C. Flemings, Raul A. Martinez-Ayers, Anacleto M. de Figueredo, James A. Yurko