Flow through type drying apparatus
USRE28965E · kind E · reissue
3Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 29, 1968 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | Feb 29, 1988 |
Classification
- Technology area (CPC —)General
Abstract
.Iadd.Apparatus for method of vacuum freeze-drying frozen granular material in spaced, substantially vertical product beds is provided by vertical cell units designed for this purpose. Sublimed water vapors are conveyed from the product beds to the condensing area by open spaces between said product beds. The open spaces contain heating means for supplying heat of sublimation to the frozen material within the product beds..Iaddend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.