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Structural Frame


United States Patent 5,660,003
issued August 26, 1997
Inventors:  Owens; Charles R.
Appl. No.: 399,048
Filed: March 8, 1995

 Related U.S. Application Data
Continuation-in-part of Ser. No. 338,408, Nov. 14, 1994

Intl. Cl.: E04B 7/08, E04B 1/18
Current U.S. Cl.: 52/81.1; 52/311.1; 52/638; 52/648.1; 52/741.1; 52/745.2; 52/DIG. 0
Field of Search: 52/81.1, 311.1, DIG. 10, 741.1, 745.2, 82.2, 638, 648.1

Primary Examiner: Kent; Christopher T.
Attorney: McAulay Fisher Nissen Goldberg & Kiel, LLP



Abstract
A structural frame is composed of a series of struts which are arranged in a particular fashion that steers the stress applied to the frame so as to minimize development of tension and maximize the resolution of the stress in terms of compression. The frame is composed of a plurality of unicubes which are twelve equal length struts arranged to form the edges of a cube and eight additional equal length struts extending out from each corner of the cube. Each of the eight outwardly extending struts forming an equal angle with each of the three cube edge struts to which it is connected. The outboard ends of these outwardly extending struts are connected together so that sets of four such outboard strut ends are connected to form a network of these unicubes, which network constitutes the structural frame.

19 Claims, 7 Drawing Figures

References Cited

U.S. Patent Documents
2,881,717 Apr., 1959 Fuller
2,905,113 Sept., 1959 Fuller
2,914,074 Nov., 1959 Fuller
2,986,241 May, 1961 Fuller
3,063,521 Nov., 1962 Fuller
3,139,959 Jul., 1964 Kraft
3,354,591 Nov., 1967 Fuller
3,810,336 May, 1974 Sadao
3,897,164 Jul., 1975 Dodino 52/574 X
3,970,301 Jul., 1976 Lehmann 52/DIG.10 X
4,059,932 Nov., 1977 Resch
4,156,997 Jun., 1979 Decker
4,207,715 Jun., 1980 Kitrick
4,238,905 Dec., 1980 MacGraw, II 52/DIG.10 X
4,679,361 Jul., 1987 Yacoe
4,711,062 Dec., 1987 Gwilliam et al.
4,723,382 Feb., 1988 Lalvani 52/DIG.10 X
4,796,394 Jan., 1989 Chastain
5,070,673 Dec., 1991 Weisse
5,230,196 Jul., 1993 Ziegler
5,261,194 Nov., 1993 Roberts
5,329,737 Jul., 1994 Roberts et al.
5,331,779 Jul., 1994 Hing
5,448,868 Sept., 1995 Lalvani 52/DIG.10 X

Foreign Patent Documents

2159969 Jun., 1972 DE
WO81/00130 Jan., 1981 WO
WO89/04902 Jun., 1989 WO

Other References

Gasson, Geometry of Spatial Forms, pp. 252 and 253. Nov. 1983.


A complete copy of the patent summarized above can be viewed and obtained at the

U.S. Patent & Trademark Office


 

 

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