Patents by Inventor George Siappas

George Siappas 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).

  • Apparatus and method for providing a controllable supply of fluid to subsea well equipment
    Patent number: 8955595
    Abstract: An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: February 17, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Chukwuemeka U. Emecheta, Thomas E. O'Donnell, Omid Oujani, Hailing An, Baha T. Tanju, George Siappas
  • APPARATUS AND METHOD FOR PROVIDING A CONTROLLABLE SUPPLY OF FLUID TO SUBSEA WELL EQUIPMENT
    Publication number: 20110114329
    Abstract: An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 19, 2011
    Inventors: Chukwuemeka U. Emecheta, Thomas E. O'Donnell, Omid Oujani, Hailing An, Baha T. Tanju, George Siappas
  • Shackle and method for releasing or installing a shackle subsea with an ROV
    Patent number: 7134268
    Abstract: The present inventions relate generally to a shackle assembly and a method for installing and/or releasing the shackle assembly subsea. The shackle assembly of the present invention comprises first and second plates mounted on either side of a shackle body eyelet and a shackle pin mounting assembly for use in mounting a shackle pin using a shackle pin pulling tool.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: November 14, 2006
    Assignee: Oceaneering International, Inc.
    Inventor: George Siappas
  • Shackle and method for releasing or installing a shackle subsea with an ROV
    Publication number: 20060101799
    Abstract: The present inventions relate generally to a shackle assembly and a method for installing and/or releasing the shackle assembly subsea. The shackle assembly of the present invention comprises first and second plates mounted on either side of a shackle body eyelet and a shackle pin mounting assembly for use in mounting a shackle pin using a shackle pin pulling tool.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventor: George Siappas