Stability-kerfing of green lumber to obtain improvements in drying and future utilization
US7337554B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 17, 2005 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Dec 11, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B2210/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.