ClassID:

159233

F25B2309/1407 - 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 in-line geometrical arrangements

Recent Application in this class:
#1
20220325922
2022-10-13

REGENERATIVE CRYOGENIC MACHINE

#2
20220275978
2022-09-01

Double-ended thermoacoustic heat exchanger

#3
20200166247
2020-05-28

Cryogenic refrigerator and heating method for pulse tube cryocooler

#4
20190078814
2019-03-14

Pulse tube cryocooler with axially-aligned components

#5
20180266733
2018-09-20

Thermo-acoustic heat pump

#6
20180031283
2018-02-01

Pulse-tube refrigerator

#7
20170307261
2017-10-26

Thermoacoustic refrigerator

#8
20170045274
2017-02-16

Cryogenic regenerator and cryogenic refrigerator

#9
20150253043
2015-09-10

Thermoacoustic energy converting element part and thermoacoustic energy converter

#10
20150013348
2015-01-15

System, apparatus and method for pulse tube cryocooler

#11
20120151941
2012-06-21

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

#12
20120102976
2012-05-03

Pulse tube cryocooler modulating phase via inertance tube and acoustic power amplifier thereof

#13
20110252810
2011-10-20

STANDING WAVE THERMOACOUSTIC PIEZOELECTRIC REFRIGERATOR

#14
20110146302
2011-06-23

CRYOGENIC HEAT EXCHANGER FOR THERMOACOUSTIC REFRIGERATION SYSTEM

#15
20090249797
2009-10-08

Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units

#16
20090126371
2009-05-21

Heat Pump

#17
20080223579
2008-09-18

Cooling Systems for Downhole Tools

#18
20080173025
2008-07-24

Reduced volume gas spring or surge tank for cryocooler

#19
20080072608
2008-03-27

Control method for pulse tube cryocooler

#20
20060277925
2006-12-14

Pulse tube refrigerator

#21
20060097146
2006-05-11

NMR spectrometer with a common refrigerator for cooling an NMR probe head and cryostat

#22
20060090478
2006-05-04

Cryocooler operation with getter matrix

#23
20060059921
2006-03-23

Miniature thermoacoustic cooler

#24
20060026968
2006-02-09

Cryopump with two-stage pulse tube refrigerator

#25
20050274123
2005-12-15

Thermoacoustic device

#26
20050210888
2005-09-29

Cooling load enclosed in pulse tube cooler

#27
20050210886
2005-09-29

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

#28
20050028535
2005-02-10

Compliant enclosure for thermoacoustic device

#29
20050022540
2005-02-03

Heat driven acoustic orifice type pulse tube cryocooler

#30
20050011200
2005-01-20

Panels for pulse tube cryopump

#31
20050000233
2005-01-06

Miniature thermoacoustic cooler

#32
20050000232
2005-01-06

Pulse tube cooling by circulation of buffer gas