Hopper device for material spreader having a multi-positionable cover
US4261520A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1979 |
| Grant date | Apr 14, 1981 |
| Priority date | — |
| Expiry date | Nov 9, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/203
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for spreading particulate material from a vehicle mounted dump bed includes a hopper device mounted transversely across a material discharge end of the dump bed and a broadcast spreader beneath one end of the hopper device. The hopper device includes first and second spaced end walls, a fixed back wall between the end walls, and an elongated auger extending between the end walls arranged to be rotated about an axis parallel to the back wall. Rotation of the auger causes particulate material entering the hopper device to be moved toward one end wall beneath which the broadcast spreader is located. Spreading through, dumping over, and cleaning of the hopper device are possible as a result of an independent cover member extending between the end walls and movable between three corresponding positions. Support of the cover member relative to the hopper device is provided by a series of latching pins through each of the end walls and into portions of the cover member with one pin connection allowing movement of the cover member into a generally upstanding position for cleaning of the hopper device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.