Self propelled backfilling apparatus with controllable steering of material stream
US6302257A · kind A · utility
Inventor
Key dates
| Filing date | Feb 7, 2000 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Feb 7, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F7/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self propelled vehicle for transport and placement of an onboard supply of fill material in an onboard hopper. The hopper is connected to said vehicle at a point operatively positioned to discharge fill material placed therein on a conveyor belt mounted to a support structure. At the distal end of the conveyor where the material is discharged a flow director is operatively attached to the support structure to receive the flow of fill material carried by said conveyor from the hopper. The flow director bifurcates the stream of fill material allowing the operator to place more or less of the fill in two streams using a plurality of independently adjustable channeling ramps. The hopper is optionally adjustable from an angle normal to the vehicle to allow for adjustment in the vehicle center of gravity on grades. The flow director can also be configured for attachment to existing conveyors to increase their utility or used as part of the entire self propelled device in a single unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.