Ventilation systems for glove boxes
US4584930A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1983 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Mar 23, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F7/041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ventilation system for a glove box (1) comprising first (4,5) and second (10,14) extract flow lines connected in parallel between a common outlet (15) from the box and a suction pump (6). Each extract line includes a vortex amplifier (3,9) and a filter (11,12). The vortex amplifiers are chosen such that under normal operating conditions the required depression within the box is maintained by flow along the first of the extract lines and a reverse flow from the vortex amplifier in the second extract line passes through the filter in that line and exits through the first extract line without passing into the glove box. The second extract line functions as an emergency extract capability in the event of a breach of the glove box and the reverse flow keeps the filter in the line in a clean and usable condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.