Method and apparatus for controlling fume hood face velocity using variable by-pass resistance
US5470275A · kind A · utility
12Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Apr 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D7/0688
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fume hood controller and method which compensates for resistance to air flow through a by-pass opening that exists due to a grille or louvre overlying the by-pass opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.