ClassID:

136613

F01C1/18 - CPC Classification

Classification description:

Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms

Recent Application in this class:
#1
20210277893
2021-09-09

System to pump fluid and control thereof

#2
20210131285
2021-05-06

EXTERNAL GEAR MACHINE

#3
20190277283
2019-09-12

Magnetically engaged pump

#4
20190024660
2019-01-24

Magnetically engaged pump

#5
20180313352
2018-11-01

Magnetically engaged pump

#6
20180291895
2018-10-11

System to pump fluid and control thereof

#7
20180100505
2018-04-12

Toy fluid pumping gun

#8
20180100276
2018-04-12

Rotating hydraulic gear motor

#9
20180023561
2018-01-25

Bi-helical toothed wheel with variable helix angle and non-encapsulated profile for a hydraulic gear apparatus

#10
20170167303
2017-06-15

Drive unit with its drive transmission system and connected operating heat cycles and functional configurations

#11
20160369795
2016-12-22

Variable delivery external gear machine

#12
20160108733
2016-04-21

Silent gear pump or motor suppressing troubles of trapping fluid

#13
20150330387
2015-11-19

Geared hydraulic machine and relative gear wheel

#14
20150308272
2015-10-29

ROTARY PISTON ENGINE, IN PARTICULAR WITH ROTARY PISTONS CIRCULATING ABOUT THE IGNITION CHAMBER

#15
20150247499
2015-09-03

Toy fluid pumping gun

#16
20150071804
2015-03-12

Variable flow hydraulic machine

#17
20140322060
2014-10-30

Fluid-pressure apparatus with gears having tooth profiles

#18
20140134034
2014-05-15

Fluid machine

#19
20130055884
2013-03-07

MULTISTAGE PNEUMATIC MOTOR

#20
20120145119
2012-06-14

Rotary device

#21
20120039733
2012-02-16

Rotary piston steam engine with rotary variable inlet-cut-off valve

#22
20110036653
2011-02-17

Internal combustion rotary engine with intermeshing rotors

#23
20100269617
2010-10-28

METHOD OF PRODUCING A POLYMER COATING

#24
20100209281
2010-08-19

Toy fluid pumping gun

#25
20100154420
2010-06-24

Rotary displacement steam engine

#26
20090297385
2009-12-03

Rotary Motor With Intermittent Movements of the Rotors

#27
20070041859
2007-02-22

Rotary fluid-driven motor with sealing elements