Patents by Inventor Manuel Guerra, Jr.

Manuel Guerra, 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).

  • Investment Casting Shell Binders and Compositions
    Publication number: 20210178458
    Abstract: Investment casting shell composition binders comprising hydrophilic fibrils having an average diameter between about 1 nm and about less than 1 ?m can be used for the preparation of investment casting shell compositions or slurries. The investment casting shell binders and compositions can be used in an investment casting process to produce investment casting shells with improved shell build thickness and strength.
    Type: Application
    Filed: August 23, 2019
    Publication date: June 17, 2021
    Applicant: REMET UK LIMITED
    Inventors: Gavin DOOLEY, Grant BRADLEY, John Stanley PARASZCZAK, Manuel GUERRA, Jr.
  • Fast processing water based binder system
    Patent number: 6020415
    Abstract: A water based binder for use in a slurry for investment casting. The binder includes a mixture of a colloidal silica sol and at least one latex polymer. The latex polymer is preferably an acrylic latex or a styrene butadiene polymer (or a combination of these) which reduces the processing time between dips during shell mold making for investment casting. The latex polymer further lowers a critical concentration point or gelation point of the colloidal silica sol. The binder may be used as a primary binder or a backup binder in the shell mold making process. To make the slurry, the binder is combined with at least one refractory powder, preferably a refractory powder selected from the group of: alumino-silicates, fused silica, quartz silica, alumina, zircon, and zirconia.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: February 1, 2000
    Assignee: Remet Corporation
    Inventor: Manuel Guerra, Jr.
  • Fast processing water based binder system
    Patent number: 5824730
    Abstract: The invention relates to a water based binder for use in a slurry for investment casting. The binder includes a mixture of a colloidal silica sol and at least one latex polymer. The latex polymer is preferably an acrylic latex or a styrene butadiene polymer (or a combination of these) which reduces the processing time between dips during shell mold making for investment casting. The latex polymer further lowers a critical concentration point or gelation point of the colloidal silica sol. The binder may be used as a primary binder or a backup binder in the shell mold making process. To make the slurry, the binder is combined with at least one refractory powder, preferably a refractory powder selected from the group of: alumino-silicates, fused silica, quartz silica, alumina, zircon, and zirconia.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: October 20, 1998
    Assignee: Remet Corporation
    Inventor: Manuel Guerra, Jr.
  • Fast processing water based binder system
    Patent number: 5677371
    Abstract: The invention relates to a water based binder for use in a slurry for investment casting. The binder includes a mixture of a colloidal silica sol and at least one latex polymer. The latex polymer is preferably an acrylic latex or a styrene butadiene polymer (or a combination of these) which reduces the processing time between dips during shell mold making for investment casting. The latex polymer further lowers a critical concentration point or gelation point of the colloidal silica sol. The binder may be used as a primary binder or a backup binder in the shell mold making process. To make the slurry, the binder is combined with at least one refractory powder, preferably a refractory powder selected from the group of: alumino-silicates, fused silica, quartz silica, alumina, zircon, and zirconia.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 14, 1997
    Assignee: Remet Corporation
    Inventor: Manuel Guerra, Jr.
  • Fast processing water based binder system
    Patent number: 5629369
    Abstract: The invention relates to a water based binder for use in a slurry for investment casting. The binder includes a mixture of a colloidal silica sol and at least one latex polymer. The latex polymer is preferably an acrylic latex or a styrene butadiene polymer (or a combination of these) which reduces the processing time between dips during shell mold making for investment casting. The latex polymer further lowers a critical concentration point or gelation point of the colloidal silica sol. The binder may be used as a primary binder or a backup binder in the shell mold making process. To make the slurry, the binder is combined with at least one refractory powder, preferably a refractory powder selected from the group of: aluminosilicates, fused silica, quartz silica, alumina, zircon, and zirconia.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 13, 1997
    Inventor: Manuel Guerra, Jr.
  • Ceramic shell mold facecoat and core coating systems for investment casting of reactive metals
    Patent number: 4703806
    Abstract: An yttria-based slurry comprising a dense grain yttria powder and a non-aqueous-based binder is used as a mold facecoat and corecoat for investment casting of reactive metals such as titanium and titanium alloys.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: November 3, 1987
    Assignee: Howmet Turbine Components Corporation
    Inventors: Eliot S. Lassow, Paul R. Johnson, Sidney R. Whitaker, Manuel Guerra, Jr.