Pipeline air pocket detection system
US6375432B1 · kind B1 · utility
12Cited by
17References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of detecting an air pocket in a concrete pump and minimizing the effect of the nozzle and boom reaction as the air pocket reaches the end of the boom. The hydraulic pressure of the pump is monitored to determine when a pump stroke contains air. Upon detection of air in a pump stroke, an alarm is sounded and the pump is slowed to minimize the effect of the air pocket when it reaches the nozzle of the boom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.