Dielectric dryer drum
US8943705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Feb 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B11/0495
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for heating an object having a variable weight that includes a medium is provided. The method comprises: (A) placing the object having the variable weight including medium into an enclosure; (B) initiating a heating process by subjecting medium including the object having the variable weight to a variable AC electrical field; and (C) controlling the heating process. The object has substantially absorbed medium in a first “cool” state and therefore includes a maximum weight in the first “cool” state due to absorption of medium. The object is substantially free from medium in a second “heated” state due to substantial release of medium from the object, wherein the released medium is evaporated during the heating process. The heating process is completed when the object is substantially transitioned into the second “heated” state. The method further comprises using an air flow having an ambient temperature inside the enclosure to carry away the evaporated medium from the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.