Static structures (e.g. – buildings) – Machine or implement
Patent
1993-12-23
1995-08-08
Friedman, Carl D.
Static structures (e.g., buildings)
Machine or implement
527264, 52DIG8, 52233, E04C 336
Patent
active
054388120
ABSTRACT:
A hollow light weight pole like structure suitable for use as a utility pole, column or log building member is made of a plurality of wood strips glued edge to edge forming a hollow interior core, with at least one layer of high strength veneer material glued to the exterior of the wood strips with the veneer grain running parallel to the length. The layer of veneer increases the strength, distributes bending stresses uniformly, provides greater decay resistance than ordinary glued hollow poles, and increases the service life. The veneer can be made in several layers forming a continuous overwrap without longitudinally extending gaps that expose the interior wood strips to weather or splitting.
REFERENCES:
patent: 3200554 (1965-08-01), Goodman et al.
patent: 4387546 (1983-06-01), Kurita et al.
patent: 4428792 (1984-01-01), Kurita et al.
patent: 4468273 (1984-08-01), Eklund et al.
patent: 4522006 (1985-06-01), Plikuhn
patent: 4897140 (1990-01-01), Opsvik
patent: 5150557 (1992-09-01), Gregory
Friedman Carl D.
Kent Christopher T.
Regents of the University of Minnesota
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