Load reliever for plow moldboard
US6892480B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H5/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention alleviates wear on a plow moldboard by achieving a reduction in the effective weight of the moldboard on the roadway. One or more elastic links are interposed between the moldboard and the lifting arm which elevates and lowers the moldboard. The elastic links may be tensioned to such a degree that they serve as a counterweight for the moldboard, transmitting all or most of its weight to the lift arm and the plowing vehicle. The effective weight of the moldboard is thus reduced to such a degree that the lower edge of the moldboard bears against the roadway with little or no force, and it skids or slides along the roadway rather than grinding against it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.