Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Patent
1991-01-16
1992-03-24
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
52653, 52734, 52736, B04H 1200, B04H 1210, E04C 330
Patent
active
050976460
ABSTRACT:
A compound building member for use in fabricating structures. The member in a first form includes a plurality of elements having a rotationally asymmetric closed plane cross section, the rotational asymmetric elements are helically wound in complementary fashion and intertwined to form a cylindrical lattice body that extends in the members longitudinal direction. In addition, the rotationally asymmetrical elements are twisted about their longitudinal axis to form peaks and valleys in the elements. Further, the elements are aligned when intertwined such that the twist valleys are located at element cross points and the twist peaks located between successive element cross points so that the elements nest with one another at the cross points. Additionally, the slope between the twist valley and peak form shoulders that restrain movement of the member elements. In one of several other forms of the invention, linear, elements are located at the members perimeter extending in the longitudinal direction of the cylindrical body of the first form in contact with the element cross points to further support the member. In yet another form, annular, radially extending elements are added to the first form to contact the element cross points at locations along the cylindrical body' s length to provide added support to the member. In still another form, the linear element and the radial elements are added to the first form of the member. Finally, in yet another form, any of the various forms of the member is encased in a matrix of concrete or a polymeric material.
REFERENCES:
patent: 373177 (1888-11-01), Einbigler et al.
patent: 388108 (1888-08-01), Bataille
patent: 762280 (1904-08-01), O'Shea
patent: 821725 (1906-05-01), Moltrup
patent: 887863 (1908-05-01), Spaulding et al.
patent: 918678 (1909-03-01), Keenan et al.
patent: 1008209 (1911-11-01), Skinner
patent: 1332387 (1920-03-01), Easterday
patent: 1485562 (1924-03-01), Lumley
patent: 1617262 (1927-02-01), Malone
patent: 1637259 (1927-07-01), Malone
patent: 1975281 (1934-10-01), Lumb
patent: 1994930 (1935-03-01), Tommerup
patent: 2078485 (1937-04-01), Dunham
patent: 2115667 (1938-04-01), Ellis
patent: 2139816 (1938-12-01), Fordyce
patent: 2870793 (1959-01-01), Bailey
patent: 3084481 (1963-04-01), Silberkuhl et al.
patent: 3436890 (1969-04-01), Dismukes
patent: 3916592 (1975-11-01), Morohashi et al.
patent: 4309124 (1982-01-01), Bertels
patent: 4704754 (1991-11-01), Bonasso
Ridgill, Jr. James L.
Scifo Paul C.
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