Laboratory fume hood controller utilizing object detection
US5882254A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Jun 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fume hood controller includes detection apparatus for detecting the presence of objects within the fume hood and reduces the flow through the fume hood if there are no objects within the hood, thereby conserving energy costs associated with conditioning supply air to the room where the fume hood is located. The controller also adjusts flow as a function of the presence and also the location of objects that are detected within the fume hood. Since there is a smaller likelihood of fume spillage when the objects are located more deeply within the fume hood, the flow can be reduced in such a situation compared to that which would be required if the objects are located closer to the sash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.