Patents Assigned to Kelsysus, LLC
  • Collapsible flotation device
    Patent number: 6793550
    Abstract: A device comprises a spring and a sleeve. The spring is configured to form a closed loop. The spring is moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded. The spring defines a circumference while in the uncoiled configuration. The spring is disposed within the sleeve. The sleeve includes an inflatable portion disposed about at least a portion of the circumference.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: September 21, 2004
    Assignee: Kelsysus, LLC
    Inventor: David Arias