Drag box apparatus
US10662593B1 · kind B1 · utility
1Cited by
25References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jan 7, 2019 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Jan 7, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/50
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drag box or box scraper for scraping and moving loose materials on a surface uses a three point hitch having a pivotally mounted blade box holding a scraping blade attached thereto to allow the scraping blade to pivot to ride over rigid objects, such as man hole covers during road preparations. Attached water tanks add weight to the drag box and feeds a water sprayer used for dust suppression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.