The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 01, 2025

Filed:

Jun. 14, 2023
Applicant:

Tsubakimoto Chain Co., Osaka, JP;

Inventor:

Koichi Ishikawa, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 25/04 (2006.01); B01L 1/02 (2006.01); F25D 17/04 (2006.01); F25D 17/06 (2006.01);
U.S. Cl.
CPC ...
F25D 17/06 (2013.01); B01L 1/025 (2013.01); F25D 17/042 (2013.01); F25D 25/04 (2013.01); B01L 2300/10 (2013.01); B01L 2300/1894 (2013.01); F25D 2317/0411 (2013.01);
Abstract

An object of the present invention is to provide a low-temperature storage system that ensures minimal penetration of moisture into the low-temperature storage chamber from an external environment without involving an increase in size or complexity of the system configuration. The object is achieved by the configuration in this low-temperature storage system wherein a loading/unloading mechanism that carries storage objects into and out of the low-temperature storage chamber has an ancillary entry/exit preparation chamber. The entry/exit preparation chamber has a first anteroom with an interior space controlled to maintain a lower dew point than that of the external environment, and a second anteroom disposed between the first anteroom and the low-temperature storage chamber and having an interior space controlled to maintain a dew point that is between the dew point in the first anteroom and the dew point in the low-temperature storage chamber.


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