Patents-Review.com
ClassID:

136734 ⎘

F01C21/104 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in groups  - ; Outer members for co-operation with rotary pistons; Casings Stators; Members defining the outer boundaries of the working chamber

Sub-classes:
Recent Application in this class:
#1
20250369356
2025-12-04

SHELL STATOR FOR A VACUUM PUMP

 #2
20250304752
2025-10-02

STATOR COMPOUND HAVING AN AZIDE CURED ELASTOMERIC BASE AND STATORS AND DOWNHOLE MOTORS USING THE SAME

 #3
20250116223
2025-04-10

ROTARY PISTON MACHINE

 #4
20210180593
2021-06-17

Semi-rigid stator

 #5
20210171724
2021-06-10

Stator Compound Having an Azide Cured Elastomeric Base and Stators and Downhole Motors Using the Same

 #6
20200284262
2020-09-10

Progressing cavity device with cutter disks

 #7
20200123970
2020-04-23

Rotary internal combustion engine with unequal volumetric ratios

 #8
20200123902
2020-04-23

Hybrid elastomer/metal on metal motor

 #9
20190234215
2019-08-01

Rotary piston and cylinder device with single stator side

 #10
20190178084
2019-06-13

Rotary energy converter with retractable barrier

 #11
20190023878
2019-01-24

Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the same

 #12
20180347362
2018-12-06

GEROTOR APPARATUS

 #13
20180128269
2018-05-10

Scroll compressor

 #14
20180119697
2018-05-03

Progressing cavity device with cutter disks

 #15
20180106152
2018-04-19

Hydraulic machine

 #16
20170306760
2017-10-26

Eccentric screw pump

 #17
20170284398
2017-10-05

Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine

 #18
20170198582
2017-07-13

WELL SITE PUMP WITH INTEGRATED DRIVER AND HYDRAULIC MOTOR AND METHOD OF USING SAME

 #19
20170145748
2017-05-25

Positive displacement motor with radially constrained rotor catch

 #20
20170130039
2017-05-11

Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the same

 #21
20170130025
2017-05-11

Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the same

 #22
20170101927
2017-04-13

Internal combustion engine

 #23
20170101904
2017-04-13

Camshaft adjuster

 #24
20170074100
2017-03-16

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

 #25
20170058673
2017-03-02

Rotary machine

 #26
20170009583
2017-01-12

Actuator of a rotary positive displacement machine

 #27
20160348508
2016-12-01

Hybrid elastomer/metal on metal motor

 #28
20160326875
2016-11-10

Rotary energy converter with retractable barrier

 #29
20160245084
2016-08-25

Distributer phase shifter for a hydraulic pump motor

 #30
20160238007
2016-08-18

Scroll member and scroll-type fluid machine

 #31
20160201675
2016-07-14

Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine

 #32
20150204326
2015-07-23

Vane pump unit

 #33
20150040608
2015-02-12

Compressor and air conditioner including the same

 #34
20140294639
2014-10-02

Rotary compressor

 #35
20140219845
2014-08-07

Rotary systems lubricated by fluid being processed

 #36
20140134029
2014-05-15

Metal disk stacked stator with circular rigid support rings

 #37
20140102402
2014-04-17

Rotary energy converter with retractable barrier

 #38
20130255621
2013-10-03

Rotary internal combustion diesel engine

 #39
20130129547
2013-05-23

Rotary engine exhaust apparatus and method of operation therefor

 #40
20130108484
2013-05-02

UREA SOLUTION PUMP STRUCTURE

 #41
20130101412
2013-04-25

Vacuum pump having rotary compressing elements

 #42
20110194961
2011-08-11

Multiple stage dry pump

 #43
20110135516
2011-06-09

ELECTRIC PUMP

 #44
20110058970
2011-03-10

ROTARY COMPRESSOR AND METHOD

 #45
20100319394
2010-12-23

Compressor and refrigeration apparatus

 #46
20100202913
2010-08-12

GEAR PUMP

 #47
20100170469
2010-07-08

Rotary energy converter with retractable barrier

 #48
20100119399
2010-05-13

Vacuum pump

 #49
20100047087
2010-02-25

Rotary compressor having a muffler with a discharge region to discharge compressed gas toward an outer surface of the crankshaft

 #50
20100008809
2010-01-14

Pumping unit with reinforcing ribs

 #51
20090038581
2009-02-12

Oscillating piston engine

 #52
20080232993
2008-09-25

Fastener member and gas compressor using the same

 #53
20080219873
2008-09-11

Vane pump having a labyrinth seal and gap between a top surface of a rotor and a ceiling surface of a rotor chamber that is formed between upper and lower cases

 #54
20070261237
2007-11-15

Methods for hardening pump casings

 #55
20070217940
2007-09-20

PNEUMATIC TOOL WITH PRESSURE-STABILIZING CYLINDER

 #56
20070217937
2007-09-20

Oilless rotary vane pump having open ends of vane grooves being inclined rearward in the rotation direction

 #57
20070209632
2007-09-13

Rotary-piston engine and vehicle comprising an engine of this type

 #58
20070148027
2007-06-28

Rotary pump provided with an axially movable blade

 #59
20060171829
2006-08-03

Chamber for Compressor and Compressor Using the Same

 #60
20060120894
2006-06-08

Hermetic compressor

 #61
20050129559
2005-06-16

Horizontal rotary compressor

 #62
20050047937
2005-03-03

Vane pump and fuel vapor leakage check module having the same

 #63
20050042126
2005-02-24

Vane type rotary machine

 #64
18103466
2024-02-06

Moving wall positive displacement turbine system

 #65
17209504
2022-05-17

Side wall for rotary engine housing