Service recording device for a filter of an extraction hood
US7306661B2 · kind B2 · utility
0Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/36
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A service recording device for a filter is particularly suited for an extraction hood with an air flow device with a variable volumetric flow. The service recording device has a counter device with a variable counting speed. The counting speed of the air flow device is thus a function of the volumetric flow of the air flow device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.