Surface conditioning drag tools
US11483955B1 · kind B1 · utility
0Cited by
19References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2018 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/082
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A surface conditioning drag tool apparatus includes a plurality of fencing members each extending laterally along a width of the drag tool and spaced apart from one another at a plurality of locations between a front end and a rear end of the drag tool. The plurality of fencing members include a plurality of lower ground contacting extremities and a plurality of upper extremities spaced apart from one another in height and a frame coupled with and positioned above the plurality of ground working fencing members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.