ClassID:

159234

F25B2309/1408 - CPC Classification

Classification description:

Gas cycle refrigeration machines; Compression machines, plants or systems characterised by the cycle used  Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements

Recent Application in this class:
#1
20240263871
2024-08-08

A HYDROGEN OR HELIUM THROTTLING LIQUEFACTION SYSTEM USING DIRECT CURRENT FLOW FROM THE COLD AND HOT ENDS OF THE REGENERATIVE CRYOCOOLERS

#2
20210207853
2021-07-08

Pulse tube cryocooler and method of manufacturing pulse tube cryocooler

#3
20200378653
2020-12-03

Cryocooler

#4
20190078814
2019-03-14

Pulse tube cryocooler with axially-aligned components

#5
20160245553
2016-08-25

Multistage pulse tube coolers

#6
20150354861
2015-12-10

Stirling-type pulse tube refrigerator

#7
20150108980
2015-04-23

Apparatus for reducing vibrations in a pulse tube refrigerator such as for magnetic resonance imaging systems

#8
20140290276
2014-10-02

U-shaped pulse-tube refrigerator

#9
20140250920
2014-09-11

Pulse tube refrigerator

#10
20140196452
2014-07-17

Multi-stage double-acting traveling-wave thermoacoustic system

#11
20130291565
2013-11-07

Pulse tube refrigerator and regenerative refrigerator

#12
20130283823
2013-10-31

Multistage pulse tube coolers

#13
20130247592
2013-09-26

Regenerative refrigerator

#14
20130081411
2013-04-04

Cryogenic refrigerator

#15
20120304668
2012-12-06

Regenerator, GM type refrigerator and pulse tube refrigerator

#16
20120204579
2012-08-16

Regenerative refrigerator

#17
20110173995
2011-07-21

PULSE TUBE REFRIGERATOR

#18
20110100024
2011-05-05

Multistage pulse tube coolers

#19
20110100023
2011-05-05

Variable phase shift devices for pulse tube coolers

#20
20110100022
2011-05-05

Phase shift devices for pulse tube coolers

#21
20110000228
2011-01-06

HYBRID CRYOCOOLER WITH MULTIPLE PASSIVE STAGES

#22
20100298148
2010-11-25

Superconducting magnet system with refrigerator for re-liquifying cryogenic fluid in a tubular conduit

#23
20100257872
2010-10-14

Pulse tube refrigerator

#24
20090241556
2009-10-01

Pulse tube refrigerator and regenerative refrigerator

#25
20090173083
2009-07-09

Co-axial multi-stage pulse tube for helium recondensation

#26
20090151803
2009-06-18

Hybrid spool valve for multi-port pulse tube

#27
20090084116
2009-04-02

Gas phase shifting multistage displacer cryocooler

#28
20090084115
2009-04-02

Controlled and variable gas phase shifting cryocooler

#29
20090084114
2009-04-02

Gas phase shifting inertance gap pulse tube cryocooler

#30
20080314050
2008-12-25

NO-VENT LIQUID HYDROGEN STORAGE AND DELIVERY SYSTEM

#31
20080295525
2008-12-04

MULTIPLE ROTARY VALVE FOR PULSE TUBE REFRIGERATOR

#32
20080295524
2008-12-04

Pulse tube refrigerating machine

#33
20080276626
2008-11-13

Vibration-inhibiting reinforcement member for a cryocooler

#34
20080264071
2008-10-30

Pulse-tube refrigerating machine

#35
20080256958
2008-10-23

Pulse tube cryocooler

#36
20080245077
2008-10-09

Multiple Rotary Valve For Pulse Tube Refrigerator

#37
20080229760
2008-09-25

Multi-stage pulse tube cryocooler with acoustic impedance constructed to reduce transient cool down time and thermal loss

#38
20080173026
2008-07-24

Regenerative cryocooler, cylinder used for the regenerative cryocooler, cryopump, recondensing apparatus, superconducting magnet apparatus, and semiconductor detecting apparatus

#39
20080115520
2008-05-22

Rinsable cold head for a cryo refrigerator using the pulse tube principle

#40
20080115510
2008-05-22

Cryostats including current leads for electronically powered equipment

#41
20080098752
2008-05-01

Low Temperature Cryostat

#42
20080092588
2008-04-24

Reduced input power cryogenic refrigerator

#43
20080072608
2008-03-27

Control method for pulse tube cryocooler

#44
20070261416
2007-11-15

Hybrid cryocooler with multiple passive stages

#45
20070249682
2007-10-25

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

#46
20070163272
2007-07-19

Compact integrated buffer for pulse tube refrigerator

#47
20070157632
2007-07-12

Pulse tube cryogenic cooler

#48
20070130961
2007-06-14

Refrigerator with magnetic shield

#49
20070119191
2007-05-31

Pulse tube cryogenic cooler

#50
20070119190
2007-05-31

Pulse tube cryogenic cooler

#51
20070119189
2007-05-31

Three track valve for cryogenic refrigerator

#52
20070119188
2007-05-31

Reduced torque valve for cryogenic refrigerator

#53
20070107446
2007-05-17

Superconducting magnet system with refrigerator for re-liquifying cryogenic fluid in a tubular conduit

#54
20070107442
2007-05-17

Wearless valve for cryorefrigerator

#55
20070051116
2007-03-08

Device for loss-free cryogen cooling of a cryostat configuration

#56
20070051115
2007-03-08

Cryostat configuration with cryocooler and gas gap heat transfer device

#57
20070044484
2007-03-01

Pulse tube cooler having ¼ wavelength resonator tube instead of reservoir

#58
20070000257
2007-01-04

Pulse tube refrigerating machine

#59
20060254286
2006-11-16

Solid state cryocooler

#60
20060242968
2006-11-02

Cooling device

#61
20060174635
2006-08-10

Multi-stage pulse tube with matched temperature profiles

#62
20060156741
2006-07-20

Multi-stage cryocooler with concentric second stage

#63
20060144054
2006-07-06

Co-axial multi-stage pulse tube for helium recondensation

#64
20060090478
2006-05-04

Cryocooler operation with getter matrix

#65
20060086098
2006-04-27

Pulse tube cooler with internal MEMS flow controller

#66
20060021355
2006-02-02

Cryostat configuration

#67
20050274124
2005-12-15

Multi-stage pulse tube cryocooler

#68
20050257534
2005-11-24

Method for operating a cryocooler using on line contaminant monitoring

#69
20050229620
2005-10-20

Cooling apparatus

#70
20050210889
2005-09-29

Method for operating a cryocooler using temperature trending monitoring

#71
20050210888
2005-09-29

Cooling load enclosed in pulse tube cooler

#72
20050198970
2005-09-15

Low frequency pulse tube system with oil-free drive

#73
20050132745
2005-06-23

No-vent liquid hydrogen storage and delivery system

#74
20050115247
2005-06-02

Fast warm up pulse tube

#75
20050103025
2005-05-19

Pulse tube refrigerator sleeve

#76
20050050904
2005-03-10

Method for cooling an article using a cryocooler and cryocooler

#77
20050044860
2005-03-03

Pulse tube refrigerating machine

#78
20050028534
2005-02-10

Cryogenic refrigerator

#79
20050022539
2005-02-03

Stirling/pulse tube hybrid cryocooler with gas flow shunt

#80
20050011200
2005-01-20

Panels for pulse tube cryopump