Triangular cross section trenching apparatus for edging
US5794708A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Apr 19, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G20/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sod cutting machine in combination with turf cutting mechanism for cutting a longitudinally elongated trench in turf that has a trench bottom transversely inclined relative to the slope of the soil transverse to the direction of the trench elongation. The sod cutting machine has mounting arms mounted to the machine frame to extend vertically downwardly in a turf cutting position the same distance. The turf cutting mechanism includes first and second vertical knives that each has a rear shank portion joined to the lower end of the respective arm, a generally horizontal bottom edge portion and a front inclined sharpened edge that intersects with the bottom edge portion. A transverse bottom cutting knife extends between and is joined to the first and second vertical knives with one end portion vertically more remote from one of the arms than the other cutting knife end portion from the other one of the arms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.