Three structure structural element with interlocking ribbing

Details Three structure structural element with interlocking ribbing Three structure structural element with interlocking ribbing

1993-12-27

1996-01-30

Loney, Donald J.

Stock material or miscellaneous articles

Three or more coplanar interfitted sections with securing means

428133, 428120, 428167, 428172, 428178, 428166, 5279311, 156 91, 156290, B32B 300

Patent

active

054879302

ABSTRACT:
A structural element comprising opposed first and second, laterally and longitudinally extended, generally planar surface structures each having a closed figure pattern of ribbing projecting therefrom toward the opposite surface structure, a third structure disposed between the first and second surface structures in ribbing-engaging relation therewith, the opposed ribbing being interlocked across the third structure in registered, mating relation.

REFERENCES:
patent: 4304821 (1981-12-01), Hayase et al.
patent: 4957788 (1990-09-01), Colonel
patent: 5273806 (1993-12-01), Lockshaw et al.

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