Isolation structure for contamination sensitive items
US5271516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/80
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A reusable isolation structure features an easily cleanable shell having viewing windows formed therein, each protected by a framing ridge or a recess integrally formed in the shell provides protection of contents from contamination, impact, vibration and tampering. Framing ridges or recesses also facilitate stacking of shells. The closure member opening of the shell includes a groove formed around the periphery thereof and is preferably not more than slightly smaller than an interior cross-section of the shell. A door of the isolation structure is dimensioned to fit within the closure member opening and has a resilient seal clamped to the periphery of a backbone by front and rear plates. The front and rear plates cooperate with grooves formed in the backbone to define a preferred form of manifold for coupling pressure or a vacuum to the interior of the resilient seal whereby the resilient seal may be collapsed to allow removal of the door or allowed to expand or pressurized to provide secure closure. Filters and vapor and moisture drains are carried by the door structure. The door also provides a smooth interior surface of the isolation structure of closely controlled and accurate…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.