Patents Assigned to St. Croix Marine Products, Inc.
  • Watercraft roll-on system
    Patent number: 6883454
    Abstract: An auxiliary watercraft roll-on, roll-off cradle system removably attachable to an aft platform of a boat consists of a first set of rollers tiltably attached to the platform and a second set of supporting rollers removably attachable to the platform.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: April 26, 2005
    Assignee: St. Croix Marine Products, Inc.
    Inventor: William R. Blackmore
  • Boating lift
    Patent number: 6591770
    Abstract: A boat lift for attachment to the aft transom of a larger boat for lifting and lowering smaller water craft, utilizes a single double acting hydraulic cylinder to move a truck horizontally within an enclosure. Cables fixed to the truck cause movement of vertically disposed connectors attached to a intermediate vertically moveable members which in turn include cables attached to vertically moveable support posts which carry water craft support arms.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: July 15, 2003
    Assignee: St. Croix Marine Products, Inc.
    Inventor: William R. Blackmore