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US 12,239,127 B2Granted
Thermal capacitors, systems, and methods for rapid freezing or heating of biological materials
AssigneeSartorius Stedim North America Inc.
InventorsJonathan Cutting, Alexander Kaiser
Life of this patent
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Abstract
A thermal capacitor includes a shell and a PCM. The shell includes a first major surface that is configured to contact a container including media to be frozen. The shell defines a cavity in which the PCM is disposed. The PCM has a transition temperature in a range of −80 degrees Celsius to −50 degrees Celsius and is configured to rapidly freeze media from room temperature to −60 degrees Celsius with the container including the media in contact with the shell in an enclosed space.
Claims19
A rapid freezing system comprising:
- a rack;
- and
- a plurality of thermal capacitors, each one of said thermal capacitors slidably mounted within the rack such that media to be frozen is receivable between adjacent thermal capacitors, each thermal capacitor comprising:
- a shell including a first major surface configured to contact a container including media to be frozen, defining a cavity;
- and
- a phase-change material (PCM) disposed within the cavity, the PCM having a transition temperature in a range of −80 degrees Celsius to −50 degrees Celsius, each thermal capacitor configured to rapidly freeze media from room temperature to at least −50 degrees Celsius at a rate of at least 1 degree Celsius per minute with the container in contact with the shell.
3 more elements
Dependencies are inferred from the claim text.