Stability-kerfing of green lumber to obtain improvements in...

Details Stability-kerfing of green lumber to obtain improvements in... Stability-kerfing of green lumber to obtain improvements in...

2008-03-04

2008-03-04

Gravini, S. (Department: 3749)

Drying and gas or vapor contact with solids

Process

With nondrying treating of material

Reexamination Certificate

active

11251714

ABSTRACT:
A technique for end-grain creation is employed for obtaining rapid and uniform drying of lumber while simultaneously reducing warp. The stability-kerfing responsible for the improved drying of the lumber decreases the edgewise bending strength by less than ten percent, a loss readily recovered due to the ability of stability-kerfing to achieve lower and more uniform moisture contents than those realized in the contemporary drying of lumber.The improved moisture condition provided by the stability-kerfing also fosters future dimensional stability at the time of entry into the marketing stream compared to that for contemporary lumber. The required stability-kerfing is easily accomplished by the specialized implementation of existing saw equipment and associated technology into the contemporary processing lines.

REFERENCES:
patent: 3961654 (1976-06-01), Hasenwinkle
patent: 3986268 (1976-10-01), Koppelman
patent: 2003/0010434 (2003-01-01), Grenier
patent: 2006/0054267 (2006-03-01), Bosson

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