Load carrying member constructed of oriented wood strands and process for making same
US3956555A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Sep 23, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/253
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An elongated structural member formed of bonded directionally-oriented wood strands. The member is rectangular in cross section, having a width between longitudinal side edges and thickness between parallel longitudinal faces joining the side edges. Oriented wood strands are utilized to form the member, with flange sections extending inwardly from the side edges and a web section extending between the flanges. Strands within the flange sections are longitudinally oriented parallel to one another and to the face and edges of the member. Strands within the web section are skewed relative to the strands within the flanges. At the interfaces between the flange sections and web sections, strands are disposed with angular components complementary to strands found in both the flanges and web section. The rectangular configuration of the member facilitates its construction by conventional pressing equipment and techniques. In the present process, a rectangular panel is produced with a plurality of elongated strips of longitudinally oriented strands and a plurality of interspersed web sections alternating across the panel width. Openings may be formed through the web sections along the leng…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.