Condensation chamber for freeze drying apparatus
US4178697A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1978 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Mar 28, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A condensation chamber for freeze drying apparatus is designed such that moisture containing air evacuated from a drying chamber passes substantially uniformly over the cooled interior surfaces of the condensation chamber thereby maximizing the available surface for moisture condensation and freezing. This desirable result is achieved by a tube which is connected to a vacuum pump and positioned through an end wall of the condensation chamber along the central axis of the chamber. One open end of the tube is positioned adjacent one end wall of the chamber and openings are provided through the wall of the tube adjacent the other end wall so that moisture containing air entering the chamber intermediate of the openings in the tube travel in both directions along the cooled interior surfaces of the chamber toward both openings in the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.