ClassID:

159236

F25B2309/1411 - CPC Classification

Classification description:

Gas cycle refrigeration machines; Compression machines, plants or systems characterised by the cycle used  Pulse-tube cycles characterised by control details, e.g. tuning, phase shifting or general control

Recent Application in this class:
#1
20250207824
2025-06-26

CRYOCOOLING SYSTEM

#2
20240271834
2024-08-15

DYNAMIC ACOUSTIC IMPEDANCE MATCHING FOR CRYOCOOLERS

#3
20220397322
2022-12-15

Cryogenic Cooling System

#4
20220221198
2022-07-14

Asynchronous drive of cryocooling systems for low temperature applications

#5
20220065500
2022-03-03

Co-axtal, double-inlet valve for pulse tube cryocooler

#6
20200263907
2020-08-20

Cryocooler, cryocooler diagnosis device, and cryocooler diagnosis method

#7
20200124325
2020-04-23

Cryocooler with heat transfer blocks having fins

#8
20200003459
2020-01-02

GM cryocooler with buffer volume communicating with drive chamber

#9
20190003745
2019-01-03

Cryocooler with concentric moving mechanisms

#10
20180266733
2018-09-20

Thermo-acoustic heat pump

#11
20170051952
2017-02-23

Cryocooler

#12
20150362221
2015-12-17

Frequency-matched cryocooler scaling for low-cost, minimal disturbance space cooling

#13
20150192331
2015-07-09

PULSE TUBE REFRIGERATOR

#14
20150047377
2015-02-19

Monitoring method and cooling system

#15
20140238047
2014-08-28

Cryogenic refrigerator

#16
20140069115
2014-03-13

Cryocooler having variable-length inertance channel for tuning resonance of pulse tube

#17
20120151941
2012-06-21

Secondary pulse tubes and regenerators for coupling to room temperature phase shifters in multistage pulse tube cryocoolers

#18
20110100022
2011-05-05

Phase shift devices for pulse tube coolers

#19
20090151803
2009-06-18

Hybrid spool valve for multi-port pulse tube

#20
20080092588
2008-04-24

Reduced input power cryogenic refrigerator

#21
20080072608
2008-03-27

Control method for pulse tube cryocooler

#22
20080072607
2008-03-27

Densifier for simultaneous conditioning of two cryogenic liquids

#23
20070249682
2007-10-25

Novel CD40:CD154 binding interruptor compounds and use thereof to treat immunological complications

#24
20070220903
2007-09-27

Thermoacoustic apparatus

#25
20070119189
2007-05-31

Three track valve for cryogenic refrigerator

#26
20070068175
2007-03-29

Control system for actively cooled cryogenic biological preservation unit

#27
20070056297
2007-03-15

Low vibration cryocooler

#28
20070044484
2007-03-01

Pulse tube cooler having ¼ wavelength resonator tube instead of reservoir

#29
20060288710
2006-12-28

Apparatus and method for controlling a cryocooler by adjusting cooler gas flow oscillating frequency

#30
20060277925
2006-12-14

Pulse tube refrigerator

#31
20060086098
2006-04-27

Pulse tube cooler with internal MEMS flow controller

#32
20050223705
2005-10-13

Pressure vibration generator

#33
20050210889
2005-09-29

Method for operating a cryocooler using temperature trending monitoring

#34
20050210887
2005-09-29

Resonant linear motor driven cryocooler system

#35
20050210886
2005-09-29

Methods for operating a pulse tube cryocooler system with mean pressure variations

#36
20050115247
2005-06-02

Fast warm up pulse tube

#37
20050000232
2005-01-06

Pulse tube cooling by circulation of buffer gas