Apparatus and method for detecting a missing ejector in a sorting and conveying system
US5431273A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Feb 24, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2201/0211
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The conveyor system is comprised of a plurality of spools connected by chains at each end of the spool. The space between an adjacent pair of spools defines a pocket. An ejector is carried by the chain within each pocket to eject fruit from the pocket. The ejectors are selectively activated by solenoids lying underneath the chain and mounted on a conveyor channel across which the chain and spools are pulled. A photooptical detector is provided for detecting when an ejector is missing due to damage or other loss. A system control circuit detects the missing ejector and stops the conveyor at a predetermined position so that the missing ejector stops at a predetermined repair location on the conveyor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.