Concrete discharge hopper
US4278190A · kind A · utility
90Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1980 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Jan 7, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D90/587
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A very large hopper capable of discharging concrete of varying consistency onto a moving belt conveyor in a smooth continuous ribbon. The hopper will handle concrete which is predominately mortar, up to concrete having aggregate comprising 4 to 6 inch mean diameter rocks. In a preferred embodiment the hopper has a flat inclined wall containing a discharge opening closed by a sliding primary gate with a "W" shaped leading edge; the primary gate also having a discharge opening closed by a sliding secondary gate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.