Patents by Inventor Paul S. Svec

Paul S. Svec 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).

  • Method for producing heat transfer tube with insitu heater
    Patent number: 5022150
    Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density multilayered ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: June 11, 1991
    Assignee: General Electric Company
    Inventors: Milivoj K. Brun, Marcus P. Boron, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
  • Transfer tube
    Patent number: 5004629
    Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: April 2, 1991
    Assignee: General Electric Company
    Inventors: Paul S. Svec, Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
  • Transfer tube with in situ heater
    Patent number: 4993607
    Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: February 19, 1991
    Assignee: General Electric Company
    Inventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
  • Transfer tube with insitu heater
    Patent number: 4978039
    Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density multilayered ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: December 18, 1990
    Assignee: General Electric Company
    Inventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
  • Transfer tube
    Patent number: 4966201
    Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: October 30, 1990
    Assignee: General Electric Company
    Inventors: Paul S. Svec, Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
  • Transfer tube with in situ heater
    Patent number: 4946082
    Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: August 7, 1990
    Assignee: General Electric Company
    Inventors: Milivoj K. Brun, Marcus P. Borom, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
  • Alumina shell molds used for investment casting in directional solidification of eutectic superalloys
    Patent number: 4247333
    Abstract: An alumina investment casting mold has a microstructure characterized by the porous nature of the interconnecting alumina grains which is indicative of alumina-silica molds fired in a reducing atmosphere to remove the silica.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: January 27, 1981
    Assignee: General Electric Company
    Inventors: Glenn W. Ledder, Wayne D. Pasco, Paul S. Svec
  • Fabrication of shell investment molds
    Patent number: 4131475
    Abstract: Investment casting molds embody an alumina-silica composition for at least the primary coatings which comprises a flour mixture consisting of at least two different sizes of fused alumina. The grain sizes range from approximately 240 mesh to approximately 400 mesh, U.S. Standard or Tyler screen series.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: December 26, 1978
    Assignee: General Electric Company
    Inventor: Paul S. Svec
  • Composition for making an investment mold for casting and solidification of superalloys therein
    Patent number: 4128431
    Abstract: A composition for making shell investment molds for the casting and solidification of superalloys therein embodies preparing a primary slurry composition of a mixture of three different flour grain sizes of fused alumina and a silica binder. The flour grain sizes range from approximately 240 mesh to approximately 400 mesh, U.S. Standard or Tyler screen series.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: December 5, 1978
    Assignee: General Electric Company
    Inventor: Paul S. Svec
  • Process for making an investment mold for casting and solidification of superalloys therein
    Patent number: 4024300
    Abstract: A process for making shell investment molds for the casting and solidification of superalloys therein embodies preparing a primary slurry composition of a mixture of at least two different flour grain sizes of fused alumina and a silica binder. The flour grain sizes range from approximately 240 mesh to approximately 400 mesh, U.S. Standard or Tyler screen series.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: May 17, 1977
    Assignee: General Electric Company
    Inventor: Paul S. Svec