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CPC
F04C2270/782

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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS F04C2270/00Control Monitoring or safety arrangements

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F04C2270/782Sound

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Patents Grantslast 30 patents

Information Patent Grant
Rotary blower with forced external air cooling
- Patent number 6,817,844
- Issue date Nov 16, 2004
- Hi-Bar Blowers, Inc.
- Qi Wang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
CONTROL OF LIQUID RING PUMP
- Publication number 20240133380
- Publication date Apr 25, 2024
- Edwards Technologies Vacuum Engineering (Qingdao) Co Ltd
- Xin Dai
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
METHOD FOR OPERATING A SCROLL VACUUM PUMP
- Publication number 20230392600
- Publication date Dec 7, 2023
- Leybold GmbH
- Alexander Kaiser
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...