Patents Assigned to Alley Friends
  • Inflatable element and system
    Patent number: 3994102
    Abstract: An elongated inflated or inflatable element including closed loops at each end. The element has certain broad dimensional relationships between its loop measurements and other measurements, and is intended to be used in connection with a plurality of other elements to make joints and form structures. A system comprising a plurality of inflated elements having joint means and capable of being joined and assembled into a large variety of different structures. The joint means are inherent in the inflated structure of the elements.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: November 30, 1976
    Assignee: Alley Friends
    Inventors: Alan C. Johnson, Richard C. Stange