Heating device for rotary drum freeze-dryer
US10451345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2012 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Oct 4, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B11/026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A heating device (124) for heating particles to be freeze-dried in a rotary drum (102) of a freeze-dryer (100) is provided, the device comprising at least one radiation emitter (202) for applying radiation heat to the particles, and a tube-shaped separator (204) for separating the particles from the at least one emitter (202). The separator (202) being integrally closed at one end and separating an emitter volume (206) encompassing the at least one emitter (202) from a drum process volume (126) inside the drum (102), wherein the heating device (124) protrudes into the drum process volume (126) such that said integrally closed end of the separator (204) is arranged inside the drum (102) as a free end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.