Patents by Inventor James Dowdy

James Dowdy 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: 10920389
    Abstract: A first permissible operating range of the self-elevating vessel is determined based on a first structural analysis of the self-elevating vessel under a first set of conditions. A structural utilization ratio of the self-elevating vessel is determined based on a second structural analysis of the self-elevating vessel under first and second sets of conditions. Safety of lowering the self-elevating vessel from an elevated state to a first hull draft level is determined when the structural utilization ratio is less than a predetermined value. Safety of lowering the self-elevating vessel from the first hull draft level to a second hull draft level is indicated when positional displacement data obtained while the vessel is at the first hull draft level indicates that the positional displacement of the self-elevating vessel while at the first hull draft level is within the first permissible operating range.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 16, 2021
    Assignee: Rowan Companies, Inc.
    Inventors: Michael James Dowdy, Hong Yuan Hsu, Agung Atus Sundia, Jose H. Vazquez
  • Patent number: 10337258
    Abstract: A dual tower rig includes a hull supported by one or more legs and includes a cantilever assembly coupled to the hull. Dual towers are supported by a skidding system that is coupled to the cantilever assembly. The towers are configured to conduct independent operations and are movable relative to each other and to the hull by the skidding system and the cantilever assembly.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: July 2, 2019
    Assignee: Rowan Companies, Inc.
    Inventors: Michael James Dowdy, Frankie Derek Necaise
  • Publication number: 20170152713
    Abstract: A dual tower rig includes a hull supported by one or more legs and includes a cantilever assembly coupled to the hull. Dual towers are supported by a skidding system that is coupled to the cantilever assembly. The towers are configured to conduct independent operations and are movable relative to each other and to the hull by the skidding system and the cantilever assembly.
    Type: Application
    Filed: November 21, 2016
    Publication date: June 1, 2017
    Inventors: Michael James Dowdy, Frankie Derek Necaise
  • Publication number: 20060189326
    Abstract: A tracking system includes a call handler and a database containing information relating to items to be tracked. The database contains customer identification criteria that guide the call handler to determine whether to track a tracked item for a customer. Communication nodes communicate with the customer, send a signal to a tracking device, receive a signal from the tracking device, and involve a law enforcement official in the communicating with the customer when appropriate.
    Type: Application
    Filed: February 21, 2006
    Publication date: August 24, 2006
    Inventors: John Black, James Dowdy