A form tie for interlocking parallel and spaced foam panels. The tie is formed of an elongate planar strap having a lattice arrangement of openings for flow of concrete. Each of the opposite ends of the strap have an end plate and an inside plate spaced to bracket a corner of a foam form panel...http://www.google.com/patents/US5852907?utm_source=gb-gplus-sharePatent US5852907 - Tie for foam forms
