Bamboo flooring planks with glueless locking system
US7836655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24066
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a 100% bamboo plank with an interlocking system and associated manufacturing methods. In one embodiment, the 100% bamboo plank comprises first, second, and third layers of 100% bamboo, wherein the layers are laminated together. The layers are independently preconditioned to control moisture content therein. Each layer can be preconditioned by alternately elevating and lowering the moisture content in a plurality of sequential cycles before the layers are laminated together. The middle layer is oriented so its grain is substantially perpendicular to the edges of the plank. The plank had joinery portions formed along the edges, and joinery includes an asymmetric upper joinery member and lower joinery member arrangement for, and at least a portion of the upper joinery member and lower joinery member portions are formed in the second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.