Refrigeration – Storage of solidified or liquified gas – With vapor discharged from storage receptacle
Patent
1990-05-11
1991-09-17
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
With vapor discharged from storage receptacle
62320, 83171, 839155, F17C 704
Patent
active
050483005
ABSTRACT:
A cooling chamber on a microtome has an internal space which is observable and accessible from above and which accommodates an object holder and a tool for processing the object. The cooling chamber structure also includes a supply tank for accommodating a liquid cryogenic agent, the tank communicating with the cooling chamber space by way of a downwardly leading feed conduit for evaporated gaseous cryogenic agent. The feed conduit is directly in the form of a heater which can produce a controllable heating action so that the gaseous cryogenic agent can be heated along its flow path from the tank into the cooling chamber space, to provide for uniform temperature distribution in the cooling chamber space.
REFERENCES:
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patent: 3233965 (1966-02-01), McCormick
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patent: 3608324 (1971-09-01), Singleton et al.
patent: 4447952 (1984-05-01), Elkins
patent: 4548051 (1985-10-01), Moessner
patent: 4657068 (1987-04-01), Peltz
Capossela Ronald C.
Reichert-Jung Optische Werke A.G.
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