Earth auger for planting bulbs
US4807710A · kind A · utility
22Cited by
6References
19Claims
0Family size
Inventor
Key dates
| Filing date | Mar 9, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Mar 9, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C5/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The earth auger is provided with a clearing blade near the top of the flight for clearing loose soil from about the mouth of the drilled hole. A second blade is provided at the distal end of the auger within the contour of the flight for cutting of fibrous roots and to loosen the soil to encourage plant root growth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.