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Scott W Stieg, 721860 Arlington Pl, Milwaukee, WI 53202

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1860 Arlington Pl, Milwaukee, WI 53202    414-2787619   

Loveland, CO   

Claremont, CA   

1860 N Arlington Pl, Milwaukee, WI 53202    414-4035059   

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Position: Precision Production Occupations

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Scott Stieg

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Us Patents

Backpressure Regulating Flow Cell That May Be Utilized With Sensor

US Patent:
6117684, Sep 12, 2000
Filed:
Feb 9, 1999
Appl. No.:
9/247193
Inventors:
Scott W. Stieg - Milwaukee WI
James A. Dittmar - Waukesha WI
Karin L. Bogren - Milwaukee WI
Assignee:
Zellweger Analytics, Inc.
International Classification:
G01N 3508
C12Q 100
C12M 140
US Classification:
436 52
Abstract:
A flow cell for use in an analytical system of the type that may be used to test water samples for specific analytes. The flow cell reduces or eliminates the effects of backpressure on a liquid stream passing through the flow cell. This allows a sensor to be incorporated with the flow cell and enables the sensor to provide consistent output with respect to the analyte being tested without introducing signal error due to backpressure fluctuations.

Microdistillation Apparatus

US Patent:
5022967, Jun 11, 1991
Filed:
Sep 18, 1989
Appl. No.:
7/408681
Inventors:
Scott Stieg - Milwaukee WI
Assignee:
Lachat Instruments - Milwaukee WI
International Classification:
B01D 300
US Classification:
202197
Abstract:
A microdistillation column for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis involves volatilizing the water in the sample tube of the microdistillation column. The pressure which develops due to the water vapor forces all volatile compounds from the water sample, including the water itself, through a hydrophobic membrane and into the collector tube of the microdistillation column. The volatile compounds and the water vapor condense in the cooler collector tube and are quantitatively trapped and retained over the membrane. Relatively small samples may be distilled in the column.

Microdistillation Method

US Patent:
5304287, Apr 19, 1994
Filed:
Feb 7, 1991
Appl. No.:
7/652186
Inventors:
Scott Stieg - Milwaukee WI
Assignee:
Lachat Instruments - Milwaukee WI
International Classification:
B01D 300
US Classification:
203 1
Abstract:
A microdistillation method for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis involves volatilizing the water in the sample tube of a microdistillation column. The pressure which develops due to the water vapor forces all volatile compounds from the water sample, including the water itself, through a hydrophobic membrane and into the collector tube of the microdistillation column. The volatile compounds and the water vapor condense in the cooler collector tube and are quantitatively trapped and retained over the membrane. Relatively small samples may be distilled.

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