Patents by Inventor Donald Paul Howard

Donald Paul Howard 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).

  • Riser floatation with anti-vibration strakes
    Patent number: 9845644
    Abstract: A method of manufacturing marine riser buoyancy elements includes providing a master mold and mold inserts such that a range of buoyancy elements may be manufactured from one master mold and providing the mold inserts such that an annular space between the riser main conduit and the buoyancy elements, or a groove width between the buoyancy elements may be varied during manufacture.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 19, 2017
    Assignee: DIAMOND OFFSHORE COMPANY
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris Allen Reynolds, Jr., Kati Rachelle Andrus
  • POWER SYSTEM FOR MARINE VESSELS
    Publication number: 20170101167
    Abstract: A system for dynamic positioning of a vessel includes a number of generators that generate electrical power. The system also includes a power distribution system having a first bus that obtains a first portion of the electrical power from a first portion of the plurality of generators and a second bus that obtains a second portion of the electrical power from a second portion of the plurality of generators. The system further includes a thruster that generates thrust using the first portion of the electrical power and the second portion of the electrical power.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 13, 2017
    Applicant: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, William Lee Dean
  • RISER FLOATATION WITH ANTI-VIBRATION STRAKES
    Publication number: 20160230476
    Abstract: A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane.
    Type: Application
    Filed: April 21, 2016
    Publication date: August 11, 2016
    Applicant: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris Allen Reynolds, JR., Kati Rachelle Andrus
  • Riser floatation with anti-vibration strakes
    Patent number: 9322221
    Abstract: A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 26, 2016
    Assignee: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris A. Reynolds, Jr., Kati Rachelle Andrus
  • Riser floatation with anti-vibration strakes
    Patent number: 8443896
    Abstract: A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: May 21, 2013
    Assignee: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris A. Reynolds, Kati Rachelle Andrus
  • RISER FLOATATION WITH ANTI-VIBRATION STRAKES
    Publication number: 20130095712
    Abstract: A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 18, 2013
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris A. Reynolds, JR., Kati Rachelle Andrus
  • Cathodic protection method and apparatus
    Patent number: 7967959
    Abstract: A cathodic protection system for use in an electrolyte includes a protected structure to be at least partially immersed in the electrolyte, at least one sacrificial anode to be at least partially immersed in the electrolyte and electrically connected to the protected structure, and a substantially impermeable barrier disposed between the at least one sacrificial anode and the electrolyte.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: June 28, 2011
    Assignee: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, Harris A. Reynolds, Jr.
  • RISER FLOATATION WITH ANTI-VIBRATION STRAKES
    Publication number: 20100307762
    Abstract: A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 9, 2010
    Applicant: Diamond Offshore Drilling, Inc.
    Inventors: Donald Paul Howard, Alan Hugh Summers, Harris A. Reynolds, Kati Rachelle Andrus
  • CATHODIC PROTECTION METHOD AND APPARATUS
    Publication number: 20100270169
    Abstract: A cathodic protection system for use in an electrolyte includes a protected structure to be at least partially immersed in the electrolyte, at least one sacrificial anode to be at least partially immersed in the electrolyte and electrically connected to the protected structure, and a substantially impermeable barrier disposed between the at least one sacrificial anode and the electrolyte.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: DIAMOND OFFSHORE DRILLING, INC.
    Inventors: Donald Paul Howard, Harris A. Reynolds, JR.