Brent J Steffensmeier
age ~43
from White Bear Lake, MN
- Also known as:
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- Brent Brent Steffensmeier
- Phone and address:
- 2527 Lake Ave, Saint Paul, MN 55110
Brent Steffensmeier Phones & Addresses
- 2527 Lake Ave, Saint Paul, MN 55110
- 722 Hiawatha Ave, Saint Paul, MN 55127
- White Bear Lake, MN
- Hugo, MN
Us Patents
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Membrane Module
view source -
US Patent:20080072754, Mar 27, 2008
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Filed:Sep 21, 2007
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Appl. No.:11/903337
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Inventors:John Henry Burban - Lake Elmo MN, US
Jeffrey William Berg - Lino Lakes MN, US
Brent Joseph Steffensmeier - Vadnais Heights MN, US
Joseph Charles Tuma - Forest Lake MN, US
Carl Matthew Geisz - St. Paul MN, US
Craig Jonathan Cuta - Stillwater MN, US -
International Classification:B01D 53/22
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US Classification:96 8
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Abstract:A helically wound hollow membrane module having a core with a plurality of helically wound layers of semi-permeable hollow fibers wound on the core. The fiber wind angle with respect to any one layer of fibers may be essentially constant along the axial length of the module, except in one or both end or tubesheet regions, where the wind angle may be increased, in at least some of the layers relative to the essentially constant wind angle, to produce an area of decreasing diameter.
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