Method of manufacturing metallic vacuum double-walled container
US5588197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1995 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | May 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49879
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metallic vacuum double-walled container and manufacturing method therein is provided in which an inner container and outer container are both formed from a metal. From among the aforementioned, at least the outer container possesses a body which is formed by rolling a steel plate with a Vickers hardness of 250.about.600. The outer container is then shaped into a cylindrical body, and joined to a processed inner container at their mouth portions to form a metallic double-walled container. This metallic double-walled container is then heat treated at a temperature of 200.degree..about.600.degree. C. under a vacuum, and the space between the two walls of the metallic double-walled container is vacuum sealed to form the final product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.