Microtome cooling chamber and method of adjusting the cooling chamber temperature
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United States of America Patent
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Sep 17, 1991
Grant Date -
N/A
app pub date -
May 11, 1990
filing date -
May 26, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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