Dryer moisture indicator
US6655043B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B2200/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A moisture indicator in an air flow drying process where hot gas is circulated over and around a granular material having an undesirable amount of moisture includes a detector located in the path of the exhaust gas to determine exhaust flow temperature, a valve control device associated with the temperature detector to control the percentage of hydrocarbon gas in the hot gas intake and an indicator connected to the valve control device. A display is associated with the indicator to display the percentage of hydrocarbon gas in the gas intake which indicates the amount of moisture in the granular material. The percentage of hydrocarbon gas needed in the intake is inversely proportional to the amount of moisture in the granular material. The percentage signals the loader operator whether the granular material loaded has an acceptable amount of moisture for successful operation of the drying process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.