Granular material storage system
US4887400A · kind A · utility
Inventor
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G65/365
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A grain storage device is provided with an outer retaining wall which extends about a lower base. In the center of the retaining wall is a vertically-extending aeration tower which has a central, hollow interior through which air may be supplied for flow into grain which is piled in a generally conical pile beneath a vertically movable cover of flexible material which is raised and lifted along the tower as the pile beneath grows. To uniformly distribute the grain to have a symmetrically even pile, there is provided a distributor means on the tower which has the plurality of discharge ports which have valves for selectively controlling the size of the openings through the ports so as to control the amount of grain flowing about the tower and in different directions. Preferably, a deflecting means in the form of troughs are also used to deflect the streams at different angles so that to provide more uniform and symmetry for the pile being formed. The grain is delivered to the top of the distributor for falling downwardly between a filling skirt and the tower walls. The filling skirt prevents rain and other materials from entering into the aeration tower and prevent rain or other mat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.