Microwave vacuum-drying of organic materials
US9267734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/048
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method for microwave vacuum-drying of organic materials such as food products. The dehydration apparatus (20) has a vacuum chamber (24) with an input module (28) at one end and a discharge module (32) at the other. The vacuum chamber has access doors (80) spaced between the input end (30) and the discharge end (34) which provide operator and maintenance access. Microwave generators (86) are mounted on each access door and arranged to radiate through a microwave chamber and microwave-transparent window on the access door into the vacuum chamber. A pair of rollers (60) in the vacuum chamber rotates the container of organic material (112) about a horizontal axis, and a chain drive (64) pulls the containers along the rollers through the vacuum chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.