Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Components adjustably or collapsibly connected
Patent
1984-10-02
1988-08-09
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Components adjustably or collapsibly connected
52 81, E04H 1214
Patent
active
047619295
ABSTRACT:
A plurality of struts are joined by hubs so as to be movable between a bundled, collapsed condition and an expanded condition in which the struts define at least one generally polyhedral or polygonal body. Pairs of the hubs are superposed to define split hub assemblies to hold the framework in expanded condition when joined.
REFERENCES:
patent: 2140283 (1938-12-01), Faber
patent: 3220152 (1965-11-01), Sturm
patent: 3364633 (1968-01-01), Polo
patent: 3407560 (1968-10-01), Baumann
patent: 3521421 (1970-07-01), Schroeder
patent: 3557500 (1968-07-01), Schmidt
patent: 4381636 (1983-05-01), Sapp
patent: 4473986 (1984-10-01), Zeigler
patent: 4479340 (1984-10-01), Alphonse et al.
Space Grid Structures, John Borrego, MIT Press, 1968, pp. 32-33.
Friedman Carl D.
Snyder John P.
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