Cryogenic freezer
US6230500A · kind A · utility
6Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Sep 29, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C13/006
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rectangular double walled cryogenic freezer has a vacuum space filled with layers of a reflective material. The support material is an open-celled three dimensional geometric grid that provides structural support for the freezer walls to prevent wall deformation when a vacuum is drawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.