Device for dispensing seeds singly
US9485902B2 · kind B2 · utility
1Cited by
0References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/0445
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device is provided for dispensing seeds singly. The device includes a drum, a dispensing disc, a vacuum chamber and a seal of the vacuum chamber, between the drum and the disc. The seal includes a friction insert mounted so as to be immobile in rotation relative to the drum against the periphery of the disc and an elastic seal mounted so as to be immobile in rotation between the drum and the friction insert. The elastic seal maintains the friction insert in a position of leaning against the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.