Vacuum insulated refrigerator structure with feature for controlling deformation and improved air withdrawal
US11708935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2022 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2201/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vacuum insulated structure including a first cover member of a stamped unitary sheet defining a perimeter portion positioned at a first planar level and first rib formed in the unitary sheet extending to a second planar level spaced axially outward and disposed radially inward of the perimeter portion, a second cover member, and 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 rib defines a first 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.