Air flow control apparatus
US4030518A · kind A · utility
21Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1976 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Jul 30, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86734
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A sliding plate air flow control valve adapted for use in a high efficiency air filter system of the type used in clean rooms and the like. The sliding plate valve is preferably positioned on the downstream side of each filter, and includes a highly viscous, non-evaporating fluid positioned between the plates to thereby prevent the air from flowing laterally between the plates, whereby the volume of air flow may be accurately controlled over the full area of the clean room as well as the full area of each filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.