Patents by Inventor Siegfried Pertramer

Siegfried Pertramer 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: 4740182
    Abstract: In a mast base arrangement for a surfboard having a mast base lower part which is disposed beneath a universal joint (5) and which engages in an opening of a connecting member on the surfboard side, the mast base lower part is provided with a lever (59) in order to facilitate the insertion of the mast base lower part into the opening of the connecting member.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: April 26, 1988
    Inventor: Siegfried Pertramer
  • Patent number: 4462327
    Abstract: A mast foot for sail boards having a universal joint for connection of the mast through the mast foot, with the sail board hull. The universal joint is joined up by way of a middle pin forming part of a bearing unit, which is designed to be fixedly joined to the hull. The middle pin is furthermore able to be moved, together with the universal joint, in relation to the rest of the bearing unit against the force of a spring in a direction generally normal to the deck of the sail board. The spring may be adjusted with respect to the force produced by it acting against upward motion of the middle pin. The bearing unit can be joined with the sail board hull in a sleeve by way of a turning joint like a bayonet connection.
    Type: Grant
    Filed: February 2, 1982
    Date of Patent: July 31, 1984
    Assignee: Mistral Windsurfing AG of Grindelstrasse
    Inventors: Siegfried Pertramer, Joachim Adamek, Ernstfried Prade