Laminated veneer lumber (LVL)

Details Laminated veneer lumber (LVL) Laminated veneer lumber (LVL)

1986-02-05

1988-05-10

Kittle, John E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428114, 428529, B32B 512

Patent

active

047434848

ABSTRACT:
A dimensionally stable composite wood panel having wood veneer sheets with their grains disposed in the same direction, and a core of adhesively-bonded biomass particles is improved by including a third wood veneer sheet having its grain substantially perpendicular to the grains of the surface veneer sheets. Additional veneer sheets may lie intermediate the surface sheets and the intermediate sheet, with its grain structure oriented parallel to the surface sheets. The panel produced may be ripped or sawed to form laminated veneer lumber of such dimensions that it may be substituted for structural lumber. The laminated veneer lumber of the present invention has improved dimensional stability and may be nailed without splitting or cracking. A process of manufacturing continuous or indefinite lengths of the composite wood panel is disclosed.

REFERENCES:
patent: 1387011 (1921-08-01), Ratcliff
patent: 2356625 (1944-08-01), Schumann
patent: 2744044 (1956-05-01), Toulmin, Jr.
patent: 3616128 (1971-10-01), Pacourek
patent: 3715257 (1973-02-01), Dunaway et al.
patent: 4086382 (1978-04-01), Hites
patent: 4204421 (1980-05-01), Rogers
patent: 4364984 (1982-12-01), Wentworth
Bulletin, Parallam Division, "Parallam", .COPYRGT.1985 Bulletin, Raute News.

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