Continuous microwave freeze-drying device
US9568243B2 · kind B2 · utility
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5References
9Claims
0Family size
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Key dates
| Filing date | Jun 15, 2011 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Oct 19, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A continuous microwave freeze-drying device comprises a vacuum water-trapping system (1), a microwave shield plate (2), a microwave bin (6) and a freeze-drying bin (5) located in the microwave bin (6), wherein the freeze-drying bin (5) comprises an upper bin opening, a left bin wall, a right bin wall and a bottom bin wall, and the left, right and bottom bin walls are all made from nonmetal wave transmitting materials, such as polyfluortetraethylene, polyethylene, polypropylene or quartz glass. The device solves the technical problem of freeze-drying failure caused by glow discharge of microwave under freeze-drying environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.