Charles A Clement

US Patent:

52148939, Jun 1, 1993

Filed:

Jun 6, 1990

Appl. No.:

7/533859

Inventors:

Charles E. Clement - Takoma Park MD

Assignee:

Lumaka Corporation - Takoma Park MD

International Classification:

E04C 326

US Classification:

522236

Abstract:

A modular system of structural framing in which a multiplicity of pre-stressed compression frame modules are combined into frameworks of any required size by use of common connecting means such as plates and brackets. Each compression frame module comprises a plurality of framing members forming a polygonal frame, and a loop means longitudinally encircling the frame. Tension is applied to the loop. The ends of the framing members are shaped to provide a non-invasive means of engaging and joining abutting framing members. The tensioned loop serves as the single fastener holding the module together while simultaneously pre-stressing the module by putting it into compression, thereby achieving a synergistic strength. Additionally, separate non-invasive joints and a removable double-cam clamping device are provided to improve the functionality of the system and to facilitate use of interchangeable parts.