ClassID:

143158

F04B53/008 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  -  Spacing or clearance between cylinder and piston

Recent Application in this class:
#1
20240337259
2024-10-10

ASYMMETRIC GAS BEARING BUSHING FOR THERMO-PUMP

#2
20240240625
2024-07-18

SYSTEM FOR DISPENSING ABRASIVE MATERIAL

#3
20220341410
2022-10-27

Air stop sheet of piston of cylinder

#4
20220299017
2022-09-22

System for dispensing abrasive material

#5
20220282719
2022-09-08

Reciprocating pump fluid cylinder sleeve assembly

#6
20220178361
2022-06-09

Linear compressor

#7
20210148319
2021-05-20

Piston pump

#8
20210102533
2021-04-08

Linear compressor

#9
20210095655
2021-04-01

Linear compressor

#10
20190359180
2019-11-28

Foreign material removal device

#11
20190226464
2019-07-25

Hydraulic device

#12
20190186671
2019-06-20

FLOW RESTRICTOR AND GAS COMPRESSOR

#13
20180320678
2018-11-08

Reciprocating compressor having a gas bearing

#14
20180306177
2018-10-25

Pump unit for reducing agents in an exhaust gas purification system

#15
20180264190
2018-09-20

AIR TOLERANT IMPLANTABLE PISTON PUMP

#16
20180258744
2018-09-13

Systems and methods for operating a linear motor to prevent impacts with hard stops

#17
20180230982
2018-08-16

Linear compressor

#18
20180195504
2018-07-12

Linear compressor

#19
20180195502
2018-07-12

Linear compressor

#20
20180187674
2018-07-05

Method for operating a linear compressor

#21
20180163719
2018-06-14

Reciprocating pump

#22
20180135618
2018-05-17

Piston arrangement for pumping a liquid

#23
20180045597
2018-02-15

Detecting fluid leaks in pressurized systems of waterjet cutting systems

#24
20170354432
2017-12-14

Pump module

#25
20170314550
2017-11-02

Piston pump comprising a piston with a profiled front face

#26
20170292342
2017-10-12

Bidirectional piston seals with pressure compensation

#27
20170074259
2017-03-16

Compressor piston shape to reduce clearance volume

#28
20160377042
2016-12-29

High pressure pump

#29
20160341194
2016-11-24

High pressure fuel pump

#30
20160298622
2016-10-13

Pump piston having variable diameter

#31
20160208790
2016-07-21

Compressor

#32
20160186742
2016-06-30

High pressure pump

#33
20150369237
2015-12-24

Linear compressor

#34
20150369225
2015-12-24

Linear compressor

#35
20150369224
2015-12-24

Linear compressor

#36
20150362112
2015-12-17

Flow restrictor and gas compressor

#37
20150078925
2015-03-19

Reciprocating compressor having a gas bearing

#38
20140326128
2014-11-06

FLOW RESTRICTOR AND GAS COMPRESSOR

#39
20140308140
2014-10-16

Hermetic compressor

#40
20140283679
2014-09-25

Flow restrictor and gas compressor

#41
20140000451
2014-01-02

Reciprocating compressor

#42
20130337221
2013-12-19

COATED MEMBER FOR MOVEMENT RELATIVE TO A SURFACE AND METHOD FOR MAKING THE COATED MEMBER

#43
20130108491
2013-05-02

Method for making a pump system with enhanced dynamic seal reliability

#44
20130074524
2013-03-28

Cryogenic refrigerator

#45
20120087806
2012-04-12

Fluid sealing elements and related methods

#46
20110027111
2011-02-03

Hermetic compressor

#47
20100326271
2010-12-30

RECIPROCATING PUMP AND METHOD FOR MAKING A SYSTEM WITH ENHANCED DYNAMIC SEAL RELIABILITY

#48
20100186585
2010-07-29

Piston-and-cylinder assembly with a variable diametral clearance, and a cylinder for use in a piston-and-cylinder assembly with a variable diametral clearance

#49
20100152714
2010-06-17

Air tolerant implantable piston pump

#50
20100078500
2010-04-01

Fuel injection pump having a barrel expansion control sleeve

#51
20100047084
2010-02-25

Fuel pump device

#52
20100046866
2010-02-25

GAS THRUST BEARING AND BEARING BUSH THEREFOR

#53
20100046862
2010-02-25

LINEAR COMPRESSOR AND GAS THRUST BEARING THEREFOR

#54
20080226468
2008-09-18

Disposable positive displacement dosing pump

#55
20080008610
2008-01-10

Piston/cylinder unit

#56
20070157801
2007-07-12

Method of fabricating planar spring clearance seal compressors

#57
20070009367
2007-01-11

Close fit cylinder and plunger

#58
20050276705
2005-12-15

Positive displacement pump having piston and/or liner with vapor deposited polymer surface

#59
20050238508
2005-10-27

Air displacement apparatus for use with a fluid transfer device