Galvanized multi-tubular beam and method of continuously forming the same
US11427144B2 · kind B2 · utility
1Cited by
18References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Sep 5, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A galvanized reinforcement beam is continuously formed by uncoiling a roll of galvanized sheet stock in a generally horizontal plane. Protrusions are formed at an upper surface of the sheet stock, which is then roll formed to form a tubular shape with the protrusions abutting a surface of the sheet stock to form venting gaps. The sheet stock is laser welded at the protrusions to continuously form a weld joint, where zinc oxide gas generated from the welding is permitted to escape an interior of the tubular shape through the venting gaps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.