Aggregate storage apparatus for use in producing asphaltic mix
US5215372A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An asphaltic mix batch apparatus which comprises a tower which mounts a number of aggregate storage bins, a weigh hopper underlying the storage bins, and a pugmill underlying the weigh hopper. Also, a screen assembly is positioned above the bins for segregating the aggregate by size, and such that the initial bin receives the more fine aggregate and the subsequent bins receive the more coarse aggregate. The initial bin has a relatively wide open top, and it receives a relatively broad gradation of the aggregate from its front to its back, with the front being disproportionately fine and the back being disproportionately coarse. A divider plate is positioned in the initial bin to prevent the gradation from interfering with the free discharge of the aggregate when the associated discharge port is opened, and to thereby provide a more uniform gradation being withdrawn through the discharge port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.