Highly insulating connectors used in making highly insulative composite wall structures. At least a substantial portion of the connector is injection molded in a single step from an appropriate resinous material or moldable plastic. The connector has a substantially pointed end in a penetrating segment...http://www.google.com/patents/US5606832?utm_source=gb-gplus-sharePatent US5606832 - Connectors used in making highly insulated composite wall structures
