Method for making a closed container, said closed container and its components
US7743962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Jan 30, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A closed container with a tight and mechanically strong seal having two fastened-together metal elements including a body and a cover. The body is essentially a cylindrical or prismatic shape having a base with one or more axial walls and an open top axial end. The cover has a more or less complex shape having one or more walls to be positioned at the top axial end of the body facing the axial wall(s) of the body. The fastening of the metal elements is via a butt weld, advantageously with no filler metal. The internal structure at the weld line includes a docking guide having a groove provided with at least one degassing chimney, and a chamfered end above or below the weld line, on the wall. The body and/or the cover include(s) at least one blanked off degassing vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.