Laboratory freeze dryer

A vacuum trap useful as a laboratory freeze dryer in which the condensing surface is formed by an aluminum container. The surface is cooled by the snow formed when high pressure carbon dioxide gas is expanded into the container. A piston in the container rises and falls in response to the level of t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BROADWIN, SAMUEL M
Format: Patent
Sprache:eng
Schlagworte:
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