Patents Assigned to ADL Partners
  • Chainable building blocks
    Patent number: 5172534
    Abstract: A construction set is made up of a plurality of detachably chainable links capable of being pivotally attached to one another to form stable geometric structures. Detents are provided at a plurality of pivot positions so as to preferentially hold the engaged links in stable and precise positions relative one to another.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: December 22, 1992
    Assignee: ADL Partners
    Inventors: Ronald E. Milner, Eric D. Plambeck