(19)
(11) EP 4 515 157 A1

(12)

(43) Date of publication:
05.03.2025 Bulletin 2025/10

(21) Application number: 23796981.1

(22) Date of filing: 28.02.2023
(51) International Patent Classification (IPC): 
F25B 9/14(2006.01)
F25D 19/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F25B 9/145; F25B 9/10; F25B 2309/1411
(86) International application number:
PCT/US2023/014047
(87) International publication number:
WO 2023/211563 (02.11.2023 Gazette 2023/44)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 25.04.2022 US 202263334463 P
26.04.2022 US 202263335112 P

(71) Applicant: The Regents of the University of Colorado, a body corporate
Denver, CO 80203 (US)

(72) Inventors:
  • BACKHAUS, Scott
    Boulder, Colorado 80302 (US)
  • SNODGRASS, Ryan
    Boulder, Colorado 80305 (US)
  • KOTSUBO, Vincent
    Superior, Colorado 80027 (US)

(74) Representative: Ernest Gutmann - Yves Plasseraud S.A.S. 
c/o Plasseraud IP CS92104 104 Rue de Richelieu
75080 Paris Cedex 02
75080 Paris Cedex 02 (FR)

   


(54) DYNAMIC ACOUSTIC IMPEDANCE MATCHING FOR CRYOCOOLERS