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:
May. 19, 2026
Filed:
Aug. 01, 2023
L3harris Technologies, Inc., Melbourne, FL (US);
Stephen Max Styonavich, Loveland, OH (US);
Christopher Barton, Cincinnati, OH (US);
Vincent Lieu, Maineville, OH (US);
Uri Bin-Nun, Westford, MA (US);
L3Harris Technologies, Inc., Melbourne, FL (US);
Abstract
Thermal energy transmission from a cryocooler cold finger is enhanced by means of a high thermal conductivity material used for or placed adjacent the cold finger end cap. In addition, the actual or effective surface area contacted by the working gas proximate the endcap is increased, thereby increasing the convective heat transfer coefficient. These features permit the coolest gas expansion space in the cold finger to be provided within the highly thermally conductive end cap, unlike many conventional designs in which the cold finger of low thermally conductive metal forms the expansion space side walls and the endcap forms only the axially facing outer surface in contact with the cooled equipment. Having the expansion space built into the high thermally conductive end cap reduces the temperature drop between the load to be cooled and the gas (e.g., helium), thus increasing the thermodynamic cycle efficiency.