Vacuum insulated refrigerator structure with feature for controlling deformation and improved air withdrawal
US11448355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2021 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jan 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2201/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vacuum insulated structure includes a first cover member of a stamped unitary sheet defining a perimeter portion positioned at a first planar level and a reinforcing member formed in the interior sheet extending to a second planar level spaced axially outward and disposed radially inward of the perimeter portion. The vacuum insulated structure also includes a second cover member and a thermal bridge interconnecting the first cover member and the second cover member at the perimeter portions thereof to define an insulating cavity therebetween. The insulating cavity is a sealed cavity having a vacuum drawn therefrom, and the first reinforcing member is configured to reduce deformation of the first cover member in at least an area adjacent the reinforcing member and to define a portion of a path for air flow out of the sealed cavity during a vacuum draw process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.