Method of cleaning greenhouse roofs
US7540925B2 · kind B2 · utility
1Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2006 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jan 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/25
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a method of cleaning greenhouse roofs mechanically to remove the accumulation of dust and grit. The method comprises at least one dust cleaning device moving over a soft roof The cleaning device is controlled to follow the irregular surface of the soft roof with limited pressure to avoid damage. The invention also provides a dust-cleaning system to remove dust and grit from the soft roof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.