High-density pneumatic transport method for use in powder or granular material and system for practising the method
US4904128A · kind A · utility
3Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Oct 20, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Oct 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/525
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved and the related system for pneumatically transporting a powder or granular material placed in an airtight storage container through a transport pipe in high density. The material is formed into a long column in a horizontal upper pipe of the transport pipe and is transported at very slow speed and in high density by being performed such operation that the material is first increased and then reduced in speed and again accelerated while being moved up through a vertical riser pipe connected to the horizontal pipe and is once more reduced in speed when the material enters the horizontal upper pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.