Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-10-24
2010-12-07
Le, Dang D (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
07847455
ABSTRACT:
The invention concerns an isolation chamber for isolating substances from the ambient. The isolation chamber comprises a first container surrounding and defining an isolation space for holding the substances and a second container surrounding the first container. A barrier space is positioned between the first and the second containers. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space.
REFERENCES:
patent: 280322 (1883-06-01), Nash
patent: 3238883 (1966-03-01), Martin
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