Box beam and method for fabricating same
US6802170B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 7, 2003 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Jan 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49625
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A box beam is provided that may be fabricated to any desired size, having a box-like structure defined by a seam defined by spaced apart first and second allowance ends or other connection means configuration, first and second top portions, first and second side portions, and a bottom portion, the bottom portion having a raised ridge formed midway about its width and running substantially along the length of the box beam. A method is also provided for fabricating the various embodiments of the box beam described from sheet metal, namely, forming the ridge, turning up the allowance ends at about right angles to the sheet, turning up the top portions likewise, then turning up the side portions likewise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.