Enclosure
US4706551A · kind A · utility
40Cited by
11References
10Claims
0Family size
Inventor
Key dates
| Filing date | Sep 19, 1985 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Sep 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S135/90
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A controlled access enclosure comprises an external frame (1) within which is suspended a cover (15). Access is gained to and from the unit by means of a zipped opening (20) in one part of the enclosure and a flap door arrangement in another part of the enclosure, the flap door being surrounded by a flange (21) which may be sealed to a hazardous working area to prevent contamination escaping from the working area into the surrounding clean environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.