Freeze-drying method and apparatus for the same
US9046303B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 29, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jul 22, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A freeze-drying method by a far infrared heater including the steps of: mounting the frozen objects to be dried prior to heating in the containers in which an absorption power of the radiant heat from the far infrared heater and a thermal conductivity are high, respectively; mounting the said objects which are contained in the containers into the reduced pressure tank under an atmospheric pressure; heating the containers by the radiant heat from the far infrared heater disposed in the reduced pressure tank; and sublimating the frozen water contents of the objects in a reduced pressure state where sublimation of the objects occurs in the reduced pressure tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.