Portable refrigerating unit for freeze drying apparatus
US3950963A · kind A · utility
14Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Aug 5, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable refrigerating unit has a condenser coil which may be inserted directly into the drying chamber of a freeze drying apparatus. A flexible tube is utilized to convey refrigerant to and from the condenser coil. The flexible tube and the condenser coil are connected through a closure member, which provides a vacuum tight seal for the drying chamber of the freeze drying apparatus. The closure member may be removed from the condenser coil, so that various closure sizes may be utilized and so that the condenser coil may be utilized as an immersible refrigerating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.