Sheetmetal container with attached end closures
US4905858A · kind A · utility
7Cited by
0References
18Claims
0Family size
Inventor
Key dates
| Filing date | Aug 29, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Aug 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container especially a drum, composed of sheetmetal has its end closures formed with cup-shaped depressions which are fitted snugly into the cylindrical ends of the drum body. A weld seam at an intermediate portion of the height of the wall of the depression seals each closure to the drum body, a flange of the wall abuts an end edge of the drum body and each end is additionally reinforced by an inwardly rolled rim on the flange of the closure. The ends of the body are not rolled or bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.