Method for detecting roller breakdowns in roller hearth kiln systems
US5065009A · kind A · utility
3Cited by
2References
14Claims
0Family size
Inventor
Key dates
| Filing date | Jul 18, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Jul 18, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2021/0092
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for detecting roller breakdowns in a roller hearth kiln is provided, wherein: a light shielder is provided at the follower end of each roller in said roller hearth kiln, and two sets of light transmitters and two sets of light receivers are provided on two straight lines between which the axis of rotation of each shielder is positioned, whereby whenever light rays transmitted from said two sets of light transmitters to said two sets of light receivers are not periodically put on and off, at least one of said rollers is taken as breaking down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.