Horizontal belt conveyor airlock
US5049007A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/44
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An airlock for the batch or continuous feeding of a material while obstructing the free flow of a gas. The airlock comprises a continuous belt having a substantially horizontal upper surface and a plurality of non-porous flights projecting out from the belt. Each flight has a free edge located outwardly from the belt. The free edges of the flights seal against a planar sealing surface located above and parallel to the belt. Particulates are transported on the upper surface of belt below and away from any potential grinding action between the moving free edges of the flights and the stationary sealing surface. The flights, located between the sealing surface and the belt, inhibit the flow of air through the airlock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.