Speed of laboratory fume hood sash opening monitor and indicator
US5733188A · kind A · utility
19Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Aug 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for monitoring the speed of movement of at least one sash door of a laboratory fume hood is disclosed. The speed of movement of a sash door is detected and an alarm signal is generated if the speed of movement exceeds a predetermined value while increasing the size of the uncovered opening of the fume hood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.