EP 0031378 B1 19840328 - STRUCTURAL ELEMENT, TETRAHEDRAL TRUSS CONSTRUCTED THEREFROM AND METHOD OF CONSTRUCTION
Title (en)
STRUCTURAL ELEMENT, TETRAHEDRAL TRUSS CONSTRUCTED THEREFROM AND METHOD OF CONSTRUCTION
Publication
Application
Priority
US 5449779 A 19790703
Abstract (en)
[origin: WO8100130A1] A three-dimensional, tetrahedral truss and its method of construction are provided. The truss comprises a three-dimensionally periodic skeletal array of an interconnected plurality of skeletal-tetrahedric units, the array being in the pattern of the cubic-diamond crystallographic structure (FIG. 7). In one embodiment, each of the skeletal-tetrahedric units is an articulated arrangement of struts (44) joined in the pattern of an equilateral skeletal-tetrahedron (FIG. 4). In another, more preferred embodiment, each of the skeletal-tetrahedric units is a skeletal arrangement of elongate members (80) joined in the pattern formed by the face members of a cubic-diamond unit-cell (FIG. 10), and is preferably assembled from four hexagonic triplanar-rings (FIG. 10A) being of the form created by joining six bilateral-elements (80) in a closed ring, triplanar pattern (FIG. 9), the bilateral-elements (80) each having equal sides and having an included angle of about 109` 28' (FIG.8).
IPC 1-7
IPC 8 full level
CPC (source: EP)
E04B 1/18 (2013.01); E04B 1/19 (2013.01); E04B 1/1906 (2013.01); E04B 2001/1927 (2013.01); E04B 2001/1957 (2013.01); E04B 2001/1972 (2013.01); E04B 2001/1981 (2013.01); E04B 2001/1984 (2013.01)
Citation (examination)
US 3333349 A 19670801 - BRUMLIK GEORGE C
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 8100130 A1 19810122; CA 1157219 A 19831122; DE 3067251 D1 19840503; EP 0031378 A1 19810708; EP 0031378 A4 19810716; EP 0031378 B1 19840328; IT 1193541 B 19880708; IT 8023203 A0 19800702; IT 8023203 A1 19820102
DOCDB simple family (application)
US 8000809 W 19800625; CA 355252 A 19800702; DE 3067251 T 19800625; EP 80901524 A 19810126; IT 2320380 A 19800702