Method and means for effecting discharge of dry bulk material from hopper-type vessel
US4722641A · kind A · utility
2Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Dec 3, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D88/70
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Describes a device for facilitating the removal of pulverulent material from a hopper-type vessel and a method utilizing the device. The device comprises an elongated hollow member closed at one end, which is adapted for insertion into the discharge channel below the hopper. The device contains an orifice for selectively directing the flow of a gas, e.g., air, in the direction of the opening in the bottom of the hopper and apparatus for introducing pressurized gas into the discharge channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.