Isolation chamber air curtain apparatus
US5997399A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2011/0005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for providing a clean working environment includes an isolation booth, a worker booth, and an access device arranged to enable a worker in the worker booth to handle material in an isolation chamber formed in the isolation booth. A pressure generator is positioned to communicate with the isolation chamber to generate an air pressure therein that is less than the air pressure of an air curtain passing through the worker booth so that air is drawn from the air curtain in the worker booth into the isolation chamber through any air leak opening that develops in and around the access device so as to block outflow of air in the isolation chamber to the worker booth through the air leak opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.