End trim plywood process
US3970497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1974 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Dec 30, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24066
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A plywood product utilizing a core panel produced from plywood strips salvaged from edge trim produced by conventional trimming operations during plywood production. The trim strips, having parallel side edges, are laid up side by side and edge glued to produce a flat core panel. Outer layers of veneer are glued at each side of the core panel to produce a resulting thick plywood structure suitable for building purposes. The method comprises the production of the strips, the composing of the strips into panels, and the final step of gluing veneers at each face of the core panel to produce a plywood product of greater thickness than most conventional plywood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.