Patents Assigned to Rotork Marine Limited
  • Design and construction of hulls
    Patent number: 3953904
    Abstract: This invention relates to a hull construction more particularly for marine craft provided with power propulsion. The hull includes at least one layer of tube-like members which extend longitudinally of the hull and are interconnected to form an integral structure. Winches are positioned on the hull and are operable to impart a predetermined upward bending or shaping to one or both end portions of the tube-like members which are preferably formed of a plastics material such as polyethylene.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: May 4, 1976
    Assignee: Rotork Marine Limited
    Inventor: Jeremy Joseph Fry
  • Hull of a boat
    Patent number: D242993
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: January 11, 1977
    Assignee: Rotork Marine Limited
    Inventor: Charles Michael Corbett Ross