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Donald N. Ruehrwein
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Batavia, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of mixing a fluid in a tank with a draft tube mixing system
Patent number
8,157,432
Issue date
Apr 17, 2012
Chicago Bridge & Iron Company
James B. Tysse
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Liquid storage tank with draft tube mixing system
Patent number
7,748,891
Issue date
Jul 6, 2010
Chicago Bridge & Iron Company
James B. Tysse
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Claricone sludge level control system
Patent number
6,814,874
Issue date
Nov 9, 2004
Chicago Bridge & Iron Company
Donald Neil Ruehrwein
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Feed control system for liquid clarification tanks
Patent number
6,673,240
Issue date
Jan 6, 2004
John J. Fassbender
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Liquid clarification tank
Patent number
6,321,916
Issue date
Nov 27, 2001
Chicago Bridge & Iron Company
Henry E. Rickelm
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Liquid clarification tank
Patent number
6,092,671
Issue date
Jul 25, 2000
Chicago Bridge & Iron Company
Donald N. Ruehrwein
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for withdrawing effluent from a solids-contact...
Patent number
5,958,249
Issue date
Sep 28, 1999
Chicago Bridge & Iron Company
John J. Fassbender
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for automatically mixing drinking water in a r...
Patent number
5,735,600
Issue date
Apr 7, 1998
Chicago Bridge and Iron Technical Services Company
David K. Wyness
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Apparatus for discharging fluid additives into a water treatment ve...
Patent number
5,716,519
Issue date
Feb 10, 1998
Chicago Bridge and Iron Technical Services Company
James M. Schleife
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method and apparatus for withdrawing effluent from a solids-contact...
Patent number
5,695,648
Issue date
Dec 9, 1997
Chicago Bridge and Iron Technical Services Company
John J. Fassbender
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
LIQUID STORAGE TANK WITH DRAFT TUBE MIXING SYSTEM
Publication number
20100232254
Publication date
Sep 16, 2010
CHICAGO BRIDGE & IRON COMPANY
James B. Tysse
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Reservoir mixing system
Publication number
20080203098
Publication date
Aug 28, 2008
CHICAGO BRIDGE & IRON COMPANY
James B. Tysse
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Claricone sludge level control system
Publication number
20040026333
Publication date
Feb 12, 2004
Donald Neil Ruehrwein
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Feed control system for liquid clarification tanks
Publication number
20020130068
Publication date
Sep 19, 2002
John J. Fassbender
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL