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.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Mar. 04, 2022
Cold Chain Technologies, Llc, Franklin, MA (US);
James R. Chasteen, Ann Arbor, MI (US);
Theodore Smith, Watertown, MA (US);
COLD CHAIN TECHNOLOGIES, LLC, Franklin, MA (US);
Abstract
Method and system are designed for storing and/or transporting temperature-sensitive materials. The system is designed to keep a payload within a desired temperature range of +2° C. to +8° C. for an extended time in a warm ambient environment. The system includes a thermally insulated container and first and second phase-change materials, each of the phase-change materials having a different solid/liquid phase-change temperature. Both phase-change materials are preconditioned to a solid state for pack-out. The first phase-change material has a solid/liquid phase-change temperature that is within the desired temperature range and that is at or below a hibernation temperature of about +5° C. to +6° C. The second phase-change material has a solid/liquid phase-change temperature that is above the hibernation temperature. When placed in the warm ambient environment, both phase-change materials move towards melting; however, when subsequently placed in hibernation, the second phase-change material reverses the direction of its phase change, becoming recharged.