Method to create vacuum insulated cabinets for refrigerators
US9833942B2 · kind B2 · utility
44Cited by
181References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2201/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a vacuum insulated refrigerator cabinet, the method comprising providing first and second sheets of material. The first sheet of material is thermoformed over a first forming tool forming a first intermediate structure. The first intermediate structure is then thermoformed over a second forming mold to create a second intermediate structure. The second sheet of material is then sealing connected with the second intermediate structure forming an annular space. A vacuum is created in the annular space creating a vacuum insulated cabinet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.