Vacuum insulation panel with improved braze seal-off and method for manufacturing same
US5695844A · kind A · utility
14Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/234
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In the manufacture of vacuum insulation panels, it is necessary to prevent deformation and damage to the brazed seal-off provided to maintain internal vacuum. The invention provides seal-off port geometries which improve the integrity of the vacuum panel. Annular troughs are formed in the metal sheet around the seal-off port to provide improved strength and stability to the seal-off area and to permit movement to compensate for melt-back of the glass mat contained within the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.