Cryo-slammer
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United States of America Patent
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-
Sep 3, 1991
Issued Date -
N/A
app pub date -
Dec 15, 1988
filing date -
Dec 3, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for ultrarapid cooling of tissue samples against a chilled cryogenic surface. The cryogenic surface is enclosed in a high vacuum chamber during cooling of the cryogenic surface. Dry non-condensable room temperature gas is introduced from an external source to raise the chamber pressure just prior to slamming or plunging a sample against the cryogenic surface. The cryogenic surface is heated for regeneration or cleaning purposes between each successive sample.
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