Patents by Inventor Ivan Semyanko

Ivan Semyanko 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).

  • Reduced wear and self cleaning stoker seal
    Patent number: 9163833
    Abstract: A sealing apparatus (22) for use with a traveling grate (18) including a base (44) and one or more legs (42) extending upwardly from the base (44). The sealing apparatus (22) includes at least one flange (52) extending outwardly from one or more of the legs (42). The flange (52) includes a surface (53) extending between the leg (52) and one or more edges (52A, 52B, 52L) of the flange (52). The surface (53) includes a sealing portion (55) adjacent to the leg (52) and one or more discharge portions (56) sloped downwardly from the sealing portion (55) to one or more of the edges (52A, 52B, 52L), for discharge of wear materials therefrom. The sealing portion (55) is positioned proximate to a portion of the traveling grate (18) and defines a gap (G2) therebetween. The gap (G2) is configured to mitigate flow therethrough.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: October 20, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Steven R. Gibowski, Ivan Semyanko, Israel Caban, Jeffrey Zak
  • REDUCED WEAR AND SELF CLEANING STOKER SEAL
    Publication number: 20120103236
    Abstract: A sealing apparatus (22) for use with a traveling grate (18) including a base (44) and one or more legs (42) extending upwardly from the base (44). The sealing apparatus (22) includes at least one flange (52) extending outwardly from one or more of the legs (42). The flange (52) includes a surface (53) extending between the leg (52) and one or more edges (52A, 52B, 52L) of the flange (52). The surface (53) includes a sealing portion (55) adjacent to the leg (52) and one or more discharge portions (56) sloped downwardly from the sealing portion (55) to one or more of the edges (52A, 52B, 52L), for discharge of wear materials therefrom. The sealing portion (55) is positioned proximate to a portion of the traveling grate (18) and defines a gap (G2) therebetween. The gap (G2) is configured to mitigate flow therethrough.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Steven R. Gibowski, Ivan Semyanko
  • Grate bar key for stokers feeding steam generator furnaces
    Patent number: D390949
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: February 17, 1998
    Assignee: Combustion Engineering, Inc.
    Inventors: Milton A. Fong, Mark R. Hapgood, Ivan Semyanko
  • Multi-piece wide stoker key for stokers feeding steam generator furnaces
    Patent number: D391633
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: March 3, 1998
    Assignee: Combustion Engineering, Inc.
    Inventors: Milton A. Fong, Mark R. Hapgood, Ivan Semyanko
  • One piece wide stoker key for stokers feeding steam generator furnaces
    Patent number: D391634
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: March 3, 1998
    Assignee: Combustion Engineering, Inc.
    Inventors: Milton A. Fong, Mark R. Hapgood, Ivan Semyanko
  • Single-piece grate bar key for stokers feeding steam generator furnaces
    Patent number: D414859
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: October 5, 1999
    Inventors: Mark R. Hapgood, Jeffrey S. Mann, Ivan Semyanko