David Jerry Moll

US Patent:

7473369, Jan 6, 2009

Filed:

Jul 14, 2005

Appl. No.:

11/181681

Inventors:

Xiaoguang Meng - Highland Park NJ, US
Mazakhir Dadachov - Mahopac NY, US
George P. Korfiatis - Basking Ridge NJ, US
Christos Christodoulatos - Basking Ridge NJ, US
David J. Moll - Midland MI, US
Geofrey Paul Onifer - Sanford MI, US
Daniel B. Rice - Shepherd MI, US
Robert E. Reim - Midland MI, US
Fredrick W. Vance - Freeland MI, US
Harlan Robert Goltz - Midland MI, US
Chan Han - Midland MI, US
William I. Harris - Midland MI, US

Assignee:

The Trustees of the Stevens Institute of Technology - Hoboken NJ

International Classification:

C02F 1/28
C01G 23/047

US Classification:

210665, 210681, 423610

Abstract:

A method for removing dissolved contaminants from solution using a surface-activated crystalline titanium oxide product having a high adsorptive capacity and a high rate of adsorption with respect to dissolved contaminants, in particular, arsenate and arsenite. Preferably, the titanium oxide product includes crystalline anatase having primary crystallite diameters in the range of 1-30 nm. The surface-activated titanium oxide is combined with other filter media to further improve the removal of dissolved contaminants.

US Patent:

7497952, Mar 3, 2009

Filed:

Jul 7, 2005

Appl. No.:

11/176586

Inventors:

Xiaoguang Meng - Highland Park NJ, US
Mazakhir Dadachov - Mahopac NY, US
George P. Korfiatis - Basking Ridge NJ, US
Christos Christodoulatos - Basking Ridge NJ, US
David J. Moll - Midland MI, US
Geofrey Paul Onifer - Sanford MI, US
Daniel B. Rice - Shepherd MI, US
Robert E. Reim - Midland MI, US
Fredrick W. Vance - Freeland MI, US
Harlan Robert Goltz - Midland MI, US
Chan Han - Midland MI, US
William I. Harris - Midland MI, US

Assignee:

The Trustees of Stevens Institute of Technology - Hoboken NJ

International Classification:

C02F 1/28
C01G 23/047

US Classification:

210665, 210681, 423610

Abstract:

A method for removing dissolved contaminants from solution using a surface-activated crystalline titanium oxide product having a high adsorptive capacity and a high rate of adsorption with respect to dissolved contaminants, in particular, arsenate and arsenite. Preferably, the titanium oxide product includes crystalline anatase having primary crystallite diameters in the range of 1-30 nm. The surface-activated titanium oxide is combined with other filter media to further improve the removal of dissolved contaminants.

US Patent:

8114478, Feb 14, 2012

Filed:

Sep 17, 2010

Appl. No.:

12/884839

Inventors:

Michael S. Koreltz - Bloomington MN, US
David J. Moll - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B05D 5/00

US Classification:

427245, 427244, 42725512

Abstract:

A method for making dual-sided membrane sheet comprises the steps of: a) forming a microporous polymer sheet including a plurality of capillary channels and b) forming a semi-permeable discriminating layer upon at least a portion of the opposing outer surfaces of the sheet, wherein the sheet is advanced along a production pathway during at least a portion of: step a), step b), or while transferring the sheet from step a) to step b) by engaging the sheet along one or more of its edge sections.

US Patent:

8210042, Jul 3, 2012

Filed:

Feb 22, 2007

Appl. No.:

11/709528

Inventors:

William E. Mickols - Chanhassen MN, US
Michael S. Koreltz - Bloomington MN, US
David J. Moll - Midland MI, US
Donald B. Streeter - Waconia MN, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

G01D 7/00
B01D 35/00

US Classification:

73587, 73579, 73596, 73597, 73598, 73599, 73600, 73614, 73615, 73616, 73617, 73618, 73619, 73620, 73625, 73626, 73627, 73628, 73629, 210 85, 210411, 210650, 210651, 210785, 210791

Abstract:

A spiral wound module assembly comprising: a permeate collection tube, at least one membrane envelope wound about the permeate collection tube, an outer module housing, and at least one acoustic transducer located adjacent to the permeate collection tube. Several embodiments are disclosed including a stand-alone probe adapted for insertion into the permeate collection tube. In several other embodiments, one or more transducers are secured to the inner surface of the permeate collection tube. The invention further includes a method of measuring membrane fouling within a spiral wound module comprising the steps of: a) transmitting an acoustic signal from a location adjacent to the permeate collection tube; b) receiving an echo signal resulting from the transmitted acoustic signal reflecting from an interface within the module; c) providing a reference signal corresponding to a known state of membrane fouling; d) comparing the echo signal to the reference signal; and e) determining a state of membrane fouling based upon the comparison of the echo signal and reference signal.

US Patent:

8241495, Aug 14, 2012

Filed:

Aug 18, 2010

Appl. No.:

12/858805

Inventors:

Peter E. M. Aerts - Midland MI, US
David J. Moll - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B01D 33/21
B01D 24/00

US Classification:

21032184, 21050023, 2105101, 2102572, 21032189, 21032175

Abstract:

A filtration module comprising at least one membrane sheet comprising a plurality of capillary channels in parallel arrangement with each other and which are in fluid communication with a header.

US Patent:

8506808, Aug 13, 2013

Filed:

Sep 28, 2010

Appl. No.:

12/891968

Inventors:

Scott T. Burr - Midland MI, US
Peter E. M. Aerts - Hulst, NL
Gavin D. Vogel - Warren MI, US
David J. Moll - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B01D 63/04
B01D 63/06
B01D 69/08

US Classification:

21032189, 2103232, 21032161, 21050023, 21032188, 96 8

Abstract:

A tubesheet, modules incorporating tubesheets and methods for making and using the same. In one embodiment the invention includes a tubesheet comprising: i) a plurality of aligned semi-permeable hollow fiber membranes each comprising a cylindrical porous structure surrounding a lumen and extending between a first and second end and further comprising a first segment located adjacent the first end and a second segment located adjacent to the second end and ii) a block of potting material including an interfacial surface. The first segment of the hollow fiber membrane is embedded within the block of potting material and the second segment extends from the interfacial surface of the block. The tubesheet further comprises a penetrating extension of potting material within the porous structure of the second segment of the hollow fiber membrane that extends along a length from the interfacial surface of the block to a distal end.

US Patent:

20080269366, Oct 30, 2008

Filed:

Apr 25, 2008

Appl. No.:

12/110082

Inventors:

Edward O. Shaffer - Midland MI, US
Rajen M. Patel - Lake Jackson TX, US
Andon Samurkas - Shelby Twp MI, US
Michael T. Malanga - Clarkston MI, US
David J. Moll - Midland MI, US
Marie S. Winkler - Davisburg MI, US

Assignee:

Dow Global Technologies Inc. - Midland MI

International Classification:

C08J 9/00

US Classification:

521134

Abstract:

Disclosed herein are microporous films comprising polymer blends comprising at least two polymers and a compatibilizer. The films may also comprise at least one ethylene/α-olefin interpolymer and two different polyolefins which can be homopolymers. The ethylene/α-olefin interpolymers are block copolymers comprising at least a hard block and at least a soft block. In some embodiments, the ethylene/α-olefin interpolymer can function as a compatibilizer between the two polyolefins which may not be otherwise compatible. Methods of making the polymer blends and microporous films made from the polymer blends are also described.

US Patent:

20120097597, Apr 26, 2012

Filed:

Jul 1, 2010

Appl. No.:

13/320756

Inventors:

Gerald Billovits - Midland MI, US
Thomas E. Fisk - Green Valley AZ, US
Steven D. Jons - Eden Prairie MI, US
David J. Moll - Midland MI, US

International Classification:

B01D 63/10

US Classification:

21032183

Abstract:

The invention includes a spiral wound module comprising at least one membrane sheet wrapped about a permeate collection tube wherein the membrane sheet () comprises a plurality of capillary channels in parallel arrangement with each other and which are in fluid communication with the permeate collection tube (). Many additional embodiments are disclosed along with methods for making and using the module and corresponding components.