Method and apparatus for unblocking conveying pipes for particulate material
US4515503A · kind A · utility
41Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1982 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Nov 5, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/525
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of unblocking conveying pipes (3) for particulate material comprises feeding air to the pipe at spaced apart positions therealong in order to reduce the length of the blocking material. The air is injected into the pipe at positions which are preferably spaced apart by a distance less than the critical particulate material plug length to conveying pipe diameter ratio that will result in a pipe blockage that cannot be moved by application of pressure applied to one end of the particulate material plug. Apparatus for carrying out the method is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.