Vacuum-assisted rapid fabric dryer and method for rapidly drying fabrics
US5131169A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2103/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vacuum-assisted drying apparatus and method are provided for rapidly drying fabrics. A rotatable drum is enclosed in a nearly hermetic region. A valve is attached to an inlet of the region; a compressor is attached to an exit of the region. With the valve closed, the compressor reduces the pressure within the region to the saturated pressure of water at the temperature of the fabrics. At this point, free moisture in the fabrics evaporates. Continued operation of the compressor removes the vaporous moisture from the system. After most of the free water vapor has been depleted, the valve is opened to allow heated air to flow through the drum and to dry the remaining bound moisture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.