Patents by Inventor Hartmut B. Schwarz

Hartmut B. Schwarz 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).

  • Sailing ship
    Patent number: 4546718
    Abstract: A sailing ship (1) has at least one mast (2,3,4) rigidly attached thereto, to which the yards (5 to 9) are rotatably attached. By an actuating shaft (21), the sail (22, 22a, 22b) can be reefed and, with the aid of a corresponding rope (24), it can be erected or stretched. The sail (22, 22a, 22b) is narrower in the middle than at the edges and has upper and lower boltropes (48, 49) that are guided in grooves (27) to the yards (5-9). Erecting and reefing of the sail (22, 22a, 22b) and bracing can be accomplished by remote control. Because of the high speed that can be attained, energy recovery is possible with a propeller.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: October 15, 1985
    Assignee: Bremer Vulkan AG Schiffbau Und Maschinenfabrik
    Inventor: Hartmut B. Schwarz