ClassID:

159244

F25B2309/14181 - CPC Classification

Classification description:

Gas cycle refrigeration machines; Compression machines, plants or systems characterised by the cycle used ; Pulse-tube cycles with valves in gas supply and return lines the valves being of the rotary type

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

REGENERATIVE CRYOGENIC MACHINE

#2
20220065500
2022-03-03

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

#3
20210071767
2021-03-11

Rotary valve of cryocooler and cryocooler

#4
20200003466
2020-01-02

Pulse tube cryocooler and rotary valve unit for pulse tube cryocooler

#5
20190309994
2019-10-10

Heat station for cooling a circulating cryogen

#6
20190277541
2019-09-12

Cryocooler and control device of cryocooler

#7
20190017731
2019-01-17

Cryocooler and rotary valve mechanism

#8
20180172319
2018-06-21

Cryogenic cooling system and method

#9
20170241674
2017-08-24

Cryocooler and rotary valve mechanism

#10
20170211852
2017-07-27

ROTARY VALVE AND A PULSE TUBE REFRIGERATOR USING A ROTARY VALVE

#11
20170184328
2017-06-29

CRYOCOOLER AND ROTARY VALVE MECHANISM

#12
20150192331
2015-07-09

PULSE TUBE REFRIGERATOR

#13
20140041397
2014-02-13

Cryogenic refrigerator with scotch yoke driving unit

#14
20130081411
2013-04-04

Cryogenic refrigerator

#15
20110094244
2011-04-28

Rotary valve and a pulse tube refrigerator using a rotary valve

#16
20090151803
2009-06-18

Hybrid spool valve for multi-port pulse tube

#17
20080295525
2008-12-04

MULTIPLE ROTARY VALVE FOR PULSE TUBE REFRIGERATOR

#18
20080245077
2008-10-09

Multiple Rotary Valve For Pulse Tube Refrigerator

#19
20080115520
2008-05-22

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

#20
20070119189
2007-05-31

Three track valve for cryogenic refrigerator

#21
20070119188
2007-05-31

Reduced torque valve for cryogenic refrigerator

#22
20070107442
2007-05-17

Wearless valve for cryorefrigerator

#23
20060147318
2006-07-06

Oil carry-over prevention from helium gas compressor

#24
20050257534
2005-11-24

Method for operating a cryocooler using on line contaminant monitoring

#25
20050210889
2005-09-29

Method for operating a cryocooler using temperature trending monitoring

#26
20050198970
2005-09-15

Low frequency pulse tube system with oil-free drive

#27
20050126187
2005-06-16

Cryogenic cooling apparatus

#28
20050115247
2005-06-02

Fast warm up pulse tube