Seeding device
US8910890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Feb 7, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B14/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Tracer particles together with air are jetted from a nozzle of a seeder into a hood, the air is guided by a collision surface of the hood, deflected to a downstream side in an airflow direction in a wind tunnel, and flows out into the wind tunnel through an opening of the hood. Tracer particles having a large diameter fly straightly without being drifted by the deflected air and collide with the collision surface and are trapped thereon and are prevented from being supplied into the wind tunnel. Tracer particles having a small diameter are drifted by the deflected air, thereby deflected, and supplied into the wind tunnel without collision with and adhesion to the collision surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.