Multi-pass lumber kilns
US9964359B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments provide a multi-pass kiln with two or more chambers, an entrance and an exit at a proximal end of the kiln, and a reciprocal flow path extending through the kiln from the entrance to the exit. Lumber charges traveling along the reciprocal flow path may travel in a first direction along one side of the heated second chamber before traveling in a substantially opposite second direction along the opposite side of the second chamber. The distal end of the kiln may be substantially sealed, and a pressure differential between the distal end and the proximal end may draw moist heated air from the heated chamber toward the exit and entry to preheat and/or condition lumber charges traveling through the first chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.