F04B45/033 - CPC Classification Index

ClassID:

143081 ⎘

F04B45/033 - CPC Classification

Classification description:

Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows having fluid drive

Sub-classes:

F04B45/0333 » {the fluid being actuated directly by a piston} 2
F04B45/0336 » {the actuating fluid being controlled by one or more valves} 12

Recent Application in this class:

20260153079

2026-06-04

BELLOWS PUMP DEVICE

20240271611

2024-08-15

PUMP UNIT, STORAGE DEVICE EQUIPPED THEREWITH, AND METHOD FOR OPERATING THE STORAGE DEVICE

20240044325

2024-02-08

BELLOWS PUMP DEVICE

20220252061

2022-08-11

Contractile device for use as an actuator, pump or compressor

20220000672

2022-01-06

Heat-assisted pumping systems for use in negative pressure wound therapy

20200132058

2020-04-30

Pressure transfer device and associated system, fleet and use, for pumping high volumes of fluids with particles at high pressures

20180140467

2018-05-24

Heat-assisted pumping systems for use in negative pressure wound therapy

20170254324

2017-09-07

Gravitational inversion pump

20170175729

2017-06-22

Cooling device equipped with a compressor device

#10

20150128616

2015-05-14

Compressor for a cooling device and a refrigeration machine

#11

20150004005

2015-01-01

Membrane Pump and Method for Adjusting Same

#12

20140147292

2014-05-29

Membrane Pump and Method for Adjusting Same

#13

20110189029

2011-08-04

Hydraulic fluid control system for a diaphragm pump

#14

20110008188

2011-01-13

Pneumatically operated reciprocating pump