Patents Assigned to CBTF Co.
  • CBTF sailing yacht appendage retraction system
    Patent number: 7128010
    Abstract: A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a laterally moveable ballast suspended beneath the hull that provides a counter heeling force when the yacht is underway, and fore and aft foils that provide improved leeway control and ballast. Components are included for at least partially retracting into the hull at least one of the ballast-supporting strut, the fore foil, and the aft foil.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: October 31, 2006
    Assignee: CBTF Co.
    Inventors: Charles W. Robinson, William F. Burns, III
  • CBTF sailing yacht main engine drive system
    Patent number: 6951180
    Abstract: A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a ballast, a ballast-supporting structure, and an onboard ballast drive system. The ballast drive system moves the ballast in order to vary the counter-heeling force it produces underway. Twin foils that depend downwardly from the hull in positions fore and aft of the ballast provide leeway and steering control. An onboard main engine drive system provides power, either directly by suitable mechanical coupling or indirectly through charging of the battery/electric system, for one or more of a canting system, a leeway, and/or steering control system. The onboard main engine drive system may also power a yacht-propelling propeller.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: October 4, 2005
    Assignee: CBTF Co.
    Inventors: Charles W. Robinson, William F. Burns, III
  • CBTF SAILING YACHT MAIN ENGINE DRIVE SYSTEM
    Publication number: 20050145152
    Abstract: A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a ballast, a ballast-supporting structure, and an onboard ballast drive system. The ballast drive system moves the ballast in order to vary the counter-heeling force it produces underway. Twin foils that depend downwardly from the hull in positions fore and aft of the ballast provide leeway and steering control. An onboard main engine drive system provides power, either directly by suitable mechanical coupling or indirectly through charging of the battery/electric system, for one or more of a canting system, a leeway, and/or steering control system. The onboard main engine drive system may also power a yacht-propelling propeller.
    Type: Application
    Filed: March 4, 2004
    Publication date: July 7, 2005
    Applicant: CBTF CO.
    Inventors: Charles Robinson, William Burns
  • CBTF sailing yacht appendage retraction system
    Publication number: 20040206287
    Abstract: A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a laterally moveable ballast suspended beneath the hull that provides a counter heeling force when the yacht is underway, and fore and aft foils that provide improved leeway control and ballast. Components are included for at least partially retracting into the hull at least one of the ballast-supporting strut, the fore foil, and the aft foil.
    Type: Application
    Filed: May 7, 2004
    Publication date: October 21, 2004
    Applicant: CBTF Co.
    Inventors: Charles W. Robinson, William F. Burns