Conveyor belt monitor
US4577502A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Jun 13, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Flaws may be detected in conveyor belting in motion by transmitting ultrasound to the belting at one zone, detecting ultrasound propagated by the belting from the one zone to another zone spaced apart from the first and issuing a signal responsive to any ultrasound detected, whereby a signal is obtained which is indicative of discontinuities in the belting intermediate the zones. Preferably, a column of water extending between an ultrasonic transducer and the belt is used for ultrasonic coupling during motion of the belt, and tracking means are provided to maintain the column at constant length. With proper frequency selection, ultrasound can be transmitted a surprising distance through conveyor belting made of rubber-like material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.