Patents Assigned to PDI
  • Boom for a sailing device
    Patent number: 4922845
    Abstract: A multi-level boom adapted for use on a sailing device such as a sailboard. The boom comprises a lower portion in a wishbone type shape having a forward end adapted to be secured to a mast and an aft end adapted for securing the clew of a sail to the boom. The boom further includes at least one elongated tubular member pivotally and slidably secured at one end to the wishbone near the midpoint of one side of the boom and having a clamp at the other end for releasably securing the elongated tubular member to a mast.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: May 8, 1990
    Assignee: PDI
    Inventor: Peter Boyd