Stephen P Larsen

US Patent:

7488422, Feb 10, 2009

Filed:

Sep 30, 2005

Appl. No.:

11/241482

Inventors:

Andrew W. Rabins - St. Paul MN, US
Kelly J. Gibbens - Vadnais Heights MN, US
Masayuki Nakamura - Woodbury MN, US
Kannan Seshadri - Woodbury MN, US
Larry J. Carson - Maplewood MN, US
Stephen M. Larsen - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B01D 15/08

US Classification:

210659, 2101982

Abstract:

A simulated moving bed apparatus and methods are described for continuously separating a target molecule from a liquid mixture, using a simulated moving bed system. The simulated moving bed system includes a plurality of filter cartridge modules in serial fluid communication. Each filter cartridge module includes a volume of stationary phase particulates adjacent a porous substrate layer. Each filter cartridge module also includes recirculation piping in fluid connection with a filter cartridge outlet and a filter cartridge inlet.

US Patent:

20110198280, Aug 18, 2011

Filed:

Feb 14, 2011

Appl. No.:

13/027119

Inventors:

Derek O. Jones - Andover MN, US
Keh B. Dema - Plymouth MN, US
Stephen M. Larsen - Inver Grove Heights MN, US
Mike J. Madsen - Chaska MN, US
Andrew J. Dallas - Lakeville MN, US
Yehya A. Elsayed - St. Paul MN, US
Chuanfang Yang - Eden Prairie MN, US

Assignee:

DONALDSON COMPANY, INC. - Minneapolis MN

International Classification:

B01D 39/20
B01D 39/18

US Classification:

210489, 210505

Abstract:

A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.

US Patent:

20130118773, May 16, 2013

Filed:

Oct 12, 2012

Appl. No.:

13/650987

Inventors:

Garry W. Lachmansingh - Plymouth MN, US
Cecil V. Francis - Austin TX, US
Rachel M. Lucking - Oakdale MN, US
Stephen H. Larsen - Woodbury MN, US
Badri Veeraraghavan - Woodbury MN, US
Ali Berker - St. Paul MN, US

Assignee:

3M INNOVATIVE PROPERTIES COMPANY - ST. PAUL MN

International Classification:

H01B 7/08
H01R 43/00

US Classification:

174117 F, 29825

Abstract:

A Z-axis conductive article includes an adhesive layer having a first major surface and a second major surface opposite the first major surface. The adhesive layer includes a dielectric pressure-sensitive adhesive and conductive magnetic particles aligned in mutually isolated conductive pathways extending from the first major surface to the second major surface of the adhesive layer. A method of making the same is also disclosed.

US Patent:

20190270040, Sep 5, 2019

Filed:

Mar 11, 2019

Appl. No.:

16/298000

Inventors:

- Minneapolis MN, US
Keh B. Dema - Minneapolis MN, US
Stephen M. Larsen - Minneapolis MN, US
Mike J. Madsen - Minneapolis MN, US
Andrew J. Dallas - Minneapolis MN, US
Yehya A. Elsayed - Minneapolis MN, US
Chuanfang Yang - Minneapolis MN, US

International Classification:

B01D 39/20
B01D 39/18

Abstract:

A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.