Patents-Review.com
ClassID:

143550 ⎘

F04C18/00 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids

Sub-classes:
Recent Application in this class:
#1
20260043389
2026-02-12

HEAT EXCHANGER COUPLING WITH ELECTROCHEMICAL HYDROGEN PUMPS USING FORCED CONVECTION OPERATION

 #2
20230003220
2023-01-05

MEDICAL FLUID PUMP HAVING AN ENERGY STORAGE COMPARTMENT

 #3
20200393083
2020-12-17

PUMP WITH ANGLED DRAIN SYSTEM

 #4
20190316586
2019-10-17

ROTARY CYLINDER PISTON COMPRESSOR PUMP AND COMPRESSOR WITH ROTARY CYLINDER PISTON COMPRESSOR PUMP

 #5
20180291906
2018-10-11

MOTOR VEHICLE VACUUM PUMP

 #6
20180106255
2018-04-19

Compressor with liquid injection cooling

 #7
20180045368
2018-02-15

Pump with angled drain system

 #8
20180023871
2018-01-25

Temperature control method

 #9
20170343261
2017-11-30

Screw compressor drive control

 #10
20170067468
2017-03-09

Compressor

 #11
20170037726
2017-02-09

Intake device, power generator, external combustion system using intake device and power generator, internal combustion system using intake device and power generator, and air hybrid power generation system using intake device and power generator

 #12
20160315517
2016-10-27

Compressor

 #13
20160172913
2016-06-16

Electric motor with embedded permanent magnet, compressor, and refrigeration/air-conditioning device

 #14
20160131138
2016-05-12

Compressor with liquid injection cooling

 #15
20150354568
2015-12-10

Compressor having a lower frame and a method of manufacturing the same

 #16
20150192129
2015-07-09

Rotary compressor, method of manufacturing a rotary compressor, and apparatus for manufacturing a rotary compressor

 #17
20150114289
2015-04-30

Coating equipment for a composite membrane without a diffusion pump and its thickness gauge for both thick and thin coatings

 #18
20150052921
2015-02-26

Screw compressor drive control

 #19
20140345317
2014-11-27

Temperature control apparatus, processing apparatus, and temperature control method

 #20
20140178236
2014-06-26

ROTARY PUMP AND BRAKE DEVICE HAVING THE SAME

 #21
20140134035
2014-05-15

Trochoidal rotary device

 #22
20140037488
2014-02-06

Vane-type Compressors and Expanders with Minimal Internal Energy Losses

 #23
20140037486
2014-02-06

Compressor having capacity modulation or fluid injection systems

 #24
20140030130
2014-01-30

Sliding vane pump

 #25
20130315768
2013-11-28

Scroll refrigeration compressor with improved retaining means and bypass valves

 #26
20130315767
2013-11-28

Scroll expander with adiabatic layer

 #27
20130309117
2013-11-21

Compressor having a lower frame and a method of manufacturing the same

 #28
20130309116
2013-11-21

Double rotation type scroll expander and power generation apparatus including same

 #29
20130302199
2013-11-14

Scroll expander

 #30
20130294906
2013-11-07

Production tubing and pump driver control lines combination for suspending progressive cavity pump and pump driver in a production assembly

 #31
20130280117
2013-10-24

Compressor with different resin hardness layers

 #32
20130280116
2013-10-24

Compressor with sliding member resin layer

 #33
20130280115
2013-10-24

Scroll Type Compressor

 #34
20130272911
2013-10-17

Screw Compressor Having Slide Valve With Flexible Volume Ratio

 #35
20130272910
2013-10-17

Scroll compressor

 #36
20130259730
2013-10-03

Rotary pump with a vane provided in each pump outlet

 #37
20130259728
2013-10-03

Scroll compressor with control valve for controlling cooling capacity based on speed and centrifugal force

 #38
20130259727
2013-10-03

SCROLL TYPE COMPRESSOR

 #39
20130259726
2013-10-03

Motor-driven compressor with intermittent communication between back pressure region and suction pressure region

 #40
20130259725
2013-10-03

Rotary compressor with oiling mechanism

 #41
20130251576
2013-09-26

Scroll compressor and processing method of scroll including a projection on a tip seal and a hole in a tip seal groove

 #42
20130251566
2013-09-26

ROTARY COMPRESSOR WITH AN INSTALLED CIRCULATION CONTROL UNIT

 #43
20130224055
2013-08-29

Vacuum pump

 #44
20130224054
2013-08-29

Scroll compressor

 #45
20130216415
2013-08-22

Scroll compressor with shaft inserting portion and manufacturing method thereof

 #46
20130195707
2013-08-01

Refrigerant Compressor

 #47
20130171018
2013-07-04

Screw compressor with slide valve including a sealing projection

 #48
20130156623
2013-06-20

Variable-speed scroll refrigeration compressor

 #49
20130149178
2013-06-13

Vane compressor with vane aligners

 #50
20130145787
2013-06-13

Screw compressor drive control

 #51
20130136640
2013-05-30

POSITIVE DISPLACEMENT COMPRESSOR

 #52
20130129552
2013-05-23

ROTARY COMPRESSOR

 #53
20130129549
2013-05-23

Compressor with oil separating mechanism

 #54
20130121866
2013-05-16

SCROLL COMPRESSOR

 #55
20130121865
2013-05-16

Scroll compressor including communication hole with improved back pressure chamber and back pressure hole locations

 #56
20130121864
2013-05-16

SCROLL COMPRESSOR

 #57
20110084638
2011-04-14

Methods, systems and apparatus for dynamically controlling an electric motor that drives an oil pump

 #58
20110041533
2011-02-24

Screw compressor drive control

 #59
20100300659
2010-12-02

Compressor having capacity modulation or fluid injection systems

 #60
20100141066
2010-06-10

Inverter connection terminal with cables attached to parts of the terminal projecting from upper and lower surfaces of a plate