Feed system for asphalt recycling drum mixers
US4395129A · kind A · utility
16Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1982 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Feb 4, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2019/1095
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drum mixer for recycling old asphalt pavement features a stationary shroud enveloping a series of circumferentially spaced feed ports medially of the drum. The old pavement is introduced tangentially into the shroud and then into a series of "hoppers" within the shroud formed about the feed ports and revolving with the drum. The old pavement falls through the feed ports onto the exterior of a conical inner drum and is directed to the downstream end of the latter by flighting thereon where it joins virgin aggregate emerging from the interior of the inner drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.