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Andrew A. CHENG
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Wilmette, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Advanced real time graphic sensorless energy saving pump control sy...
Patent number
11,391,287
Issue date
Jul 19, 2022
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Automatic self-driving pumps
Patent number
11,339,777
Issue date
May 24, 2022
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump control design toolbox technique for variable speed pumping ap...
Patent number
11,035,368
Issue date
Jun 15, 2021
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Discrete valve flow rate converter
Patent number
11,022,985
Issue date
Jun 1, 2021
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Adaptive water level controls for water empty or fill applications
Patent number
10,895,881
Issue date
Jan 19, 2021
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Variable speed pumping control system with active temperature and v...
Patent number
10,823,176
Issue date
Nov 3, 2020
Fluid Handling LLC
James J. Gu
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Direct numeric 3D sensorless converter for pump flow and pressure
Patent number
10,670,010
Issue date
Jun 2, 2020
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Direct numeric affinity pumps sensorless converter
Patent number
10,670,024
Issue date
Jun 2, 2020
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Direct numeric affinity multistage pumps sensorless converter
Patent number
10,662,954
Issue date
May 26, 2020
Fluid Handling LLC
Andrew A. Cheng
G01 - MEASURING TESTING
Information
Patent Grant
No flow detection means for sensorless pumping control applications
Patent number
10,317,894
Issue date
Jun 11, 2019
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
3-D sensorless conversion method and apparatus for pump differentia...
Patent number
10,119,545
Issue date
Nov 6, 2018
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Dynamic linear control methods and apparatus for variable speed pum...
Patent number
10,048,701
Issue date
Aug 14, 2018
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Best-fit affinity sensorless conversion means or technique for pump...
Patent number
9,938,970
Issue date
Apr 10, 2018
Fluid Handling LLC
Andrew A. Cheng
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Sensorless adaptive pump control with self-calibration apparatus fo...
Patent number
9,897,084
Issue date
Feb 20, 2018
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
System and flow adaptive sensorless pumping control apparatus for e...
Patent number
9,846,416
Issue date
Dec 19, 2017
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Grant
Mixed theoretical and discrete sensorless converter for pump differ...
Patent number
9,611,856
Issue date
Apr 4, 2017
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Method and apparatus for pump control using varying equivalent syst...
Patent number
8,700,221
Issue date
Apr 15, 2014
Fluid Handling LLC
Andrew A. Cheng
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Ultrasonic water level gauge and control device
Patent number
8,630,814
Issue date
Jan 14, 2014
Xylem IP Holdings LLC.
Andrew A. Cheng
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
AUTOMATIC SELF-DRIVING PUMPS
Publication number
20200291932
Publication date
Sep 17, 2020
FLOW CONTROL LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
VARIABLE SPEED PUMPING CONTROL SYSTEM WITH ACTIVE TEMPERATURE AND V...
Publication number
20200049152
Publication date
Feb 13, 2020
Fluid Handling LLC
James J. GU
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
ADAPTIVE WATER LEVEL CONTROLS FOR WATER EMPTY OR FILL APPLICATIONS
Publication number
20180299909
Publication date
Oct 18, 2018
Fluid Handling LLC
Andrew A. Cheng
G05 - CONTROLLING REGULATING
Information
Patent Application
AUTOMATIC SELF-DRIVING PUMPS
Publication number
20180087496
Publication date
Mar 29, 2018
FLOW CONTROL LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DIRECT NUMERIC AFFINITY MULTISTAGE PUMPS SENSORLESS CONVERTER
Publication number
20170370362
Publication date
Dec 28, 2017
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DIRECT NUMERIC 3D SENSORLESS CONVERTER FOR PUMP FLOW AND PRESSURE
Publication number
20170363078
Publication date
Dec 21, 2017
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
PUMP CONTROL DESIGN TOOLBOX TECHNIQUE FOR VARIABLE SPEED PUMPING AP...
Publication number
20170356450
Publication date
Dec 14, 2017
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
ADVANCED REAL TIME GRAPHIC SENSORLESS ENERGY SAVING PUMP CONTROL SY...
Publication number
20170107992
Publication date
Apr 20, 2017
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DIRECT NUMERIC AFFINITY PUMPS SENSORLESS CONVERTER
Publication number
20160356276
Publication date
Dec 8, 2016
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
NO FLOW DETECTION MEANS FOR SENSORLESS PUMPING CONTROL APPLICATIONS
Publication number
20160246290
Publication date
Aug 25, 2016
Fluid Handling LLC
Andrew A. CHENG
G05 - CONTROLLING REGULATING
Information
Patent Application
Discrete Valve Flow Rate Converter
Publication number
20160186889
Publication date
Jun 30, 2016
Fluid Handling LLC
Andrew A. CHENG
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
SYSTEM AND FLOW ADAPTIVE SENSORLESS PUMPING CONTROL APPARATUS FOR E...
Publication number
20160017889
Publication date
Jan 21, 2016
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
BEST-FIT AFFINITY SENSORLESS CONVERSION MEANS OR TECHNIQUE FOR PUMP...
Publication number
20160010639
Publication date
Jan 14, 2016
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Sensorless Adaptive Pump Control with Self-Calibration Apparatus fo...
Publication number
20150032271
Publication date
Jan 29, 2015
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
MIXED THEORETICAL AND DISCRETE SENSORLESS CONVERTER FOR PUMP DIFFER...
Publication number
20140288716
Publication date
Sep 25, 2014
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
3-D Sensorless Conversion Method and Apparatus for Pump Differentia...
Publication number
20140249682
Publication date
Sep 4, 2014
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DYNAMIC LINEAR CONTROL METHODS AND APPARATUS FOR VARIABLE SPEED PUM...
Publication number
20140005841
Publication date
Jan 2, 2014
Fluid Handling LLC
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
ULTRASONIC WATER LEVEL GAUGE AND CONTROL DEVICE
Publication number
20120197555
Publication date
Aug 2, 2012
ITT Manufacturing Enterprises, Inc.
Andrew A. CHENG
G01 - MEASURING TESTING
Information
Patent Application
Method and Apparatus for Pump Control Using Varying Equivalent Syst...
Publication number
20120173027
Publication date
Jul 5, 2012
ITT Manufacturing Enterprises, Inc.
Andrew A. CHENG
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...