Steven W Swanson

US Patent:

20110179779, Jul 28, 2011

Filed:

Jan 28, 2010

Appl. No.:

12/695458

Inventors:

David T. Falkowski - Blaine MN, US
Deborah A. Klinkert - Plymouth MN, US
Luke R. Staples - St. Louis Park MN, US
Jeffrey D. Peterson - St. Paul MN, US
Steven M. Swanson - East Bethel MN, US
Shimkiri S. Syiem - Seattle WA, US
Michael J. Turbak - St. Paul MN, US
Aaron C. Johnson - Champlin MN, US

Assignee:

CUMMINS POWER GENERATION, INC. - Minneapolis MN

International Classification:

F01N 3/10
F01N 3/02

US Classification:

60299, 60307, 60317

Abstract:

An exhaust system that can improve emissions treatment by reducing certain emissions species. The exhaust system draws air into the exhaust system from an air source, when exhaust pressure decreases to a threshold so that air can enter the exhaust system. The exhaust system is in a genset engine. The air source is a pressurized air source, such as an existing fan of the genset engine. A portion of the air generated by the air source is pulled off so that it flows directly toward the exhaust system, using a one-way valve and conduit that fluidly connects the air source to the exhaust system.

US Patent:

20130316393, Nov 28, 2013

Filed:

Dec 27, 2011

Appl. No.:

13/809214

Inventors:

Steven P. Swanson - Blaine MN, US
Jesse D. Miller - Hudson WI, US
Neil Percy - St. Paul MN, US
Jeffrey A. Lucas - Clinton CT, US
Kannan Seshadri - Woodbury MN, US
Jerald K. Rasmussen - Woodville WI, US
Douglas E. Weiss - Overland Park KS, US
James E. Aysta - Stillwater MN, US

Assignee:

3M INNOVATIVE PROPERTIES COMPANY - ST. PAUL MN

International Classification:

C12Q 1/04

US Classification:

435 34, 210236, 4352871

Abstract:

A microbial detection article and methods of using the same, the article comprising: a base member comprising a self-supporting water impervious substrate with first and second generally opposed major surfaces; a filter assembly defining a filter assembly aperture therein, and having a composite filter body mounted across the filter assembly aperture; wherein the composite filter body comprises: a microporous membrane, and a water-absorbent layer in fluid communication with the microporous membrane; and a cover sheet.

US Patent:

20220268685, Aug 25, 2022

Filed:

Jul 24, 2020

Appl. No.:

17/628735

Inventors:

- St. Paul MN, US
William B. Kolb - Stillwater MN, US
Audrey A. Sherman - Woodbury MN, US
Mark A. Koehrig - Stillwater MN, US
Alan R. Dombrowski - Woodbury MN, US
Kurt J. Halverson - Lake Elmo MN, US
Steven P. Swanson - Blaine MN, US
Del R. Lawson - Cottage Grove MN, US
Coey M. Arthur - Eagan MN, US

International Classification:

G01N 15/08

Abstract:

An optical element includes a porous layer with a network of a plurality of interconnected voids. The porous layer is optically diffusive to at least one wavelength of light when the network of interconnected voids is substantially free of fluid. The porous layer of the optical element undergoes a detectable optical change upon fluid ingress into the network or egress from the network of interconnected voids.

US Patent:

20220212186, Jul 7, 2022

Filed:

Jun 22, 2020

Appl. No.:

17/611239

Inventors:

- St. Paul MN, US
Steven P. Swanson - Blaine MN, US
Raymond P. Johnston - Lake Elmo MN, US

International Classification:

B01L 3/00
B32B 3/26
B32B 27/08

Abstract:

The present disclosure provides articles having conformal layers and methods of making such articles. An article includes a first polymeric layer having a substantially planar major surface and an opposing major surface bonded to a second polymeric layer. One major surface of the second polymeric layer is conformal to the first polymeric layer while the opposing major surface defines a cavity having at least one wall. The second polymeric layer also has a channel connecting the cavity to at least one edge of the second polymeric layer or to the planar surface of the first polymeric layer. A surface of the cavity exhibits an advancing contact angle with water of less than 90 degrees. A method includes obtaining a tool having protruding features; disposing a first polymer on the protruding features; disposing a second polymer on the first polymer; and applying compression to the polymeric tooling, the first polymer, and the second polymer at an elevated temperature to form the article. The articles can be formed to have small cavities for use as precision fluidic devices, such as blood glucose testing strips.

US Patent:

20220213421, Jul 7, 2022

Filed:

May 29, 2020

Appl. No.:

17/610670

Inventors:

- St. Paul MN, US
Kurt J. Halverson - Lake Elmo MN, US
Steven P. Swanson - Blaine MN, US
Evan D. Brutinel - Inver Grove Heights MN, US
Caleb T. Nelson - McKinney TX, US

International Classification:

C12M 3/06
C12Q 1/10
C12N 1/20
C12M 1/00
C12M 1/12
C12M 1/34

Abstract:

A device for growing microorganisms. The device includes a body member comprising a self-supporting, water-proof substrate having upper and lower surfaces; a hydrophobic spacer element adhered to the upper surface of the substrate forming side walls to retain a predetermined amount of liquid in contact with the substrate, wherein the hydrophobic spacer element has a hole therein; a fluid control film in the hole of the hydrophobic spacer element; a cover sheet having an inner-facing surface and an outer-facing surface, the cover sheet adhered to at least a portion of the body member; and a substantially dry, first microbial growth nutrient composition disposed on a portion of the inner surface of the cover sheet; a first adhesive composition adhered to the first microbial growth nutrient composition; and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition.

US Patent:

20230110368, Apr 13, 2023

Filed:

Sep 20, 2022

Appl. No.:

17/948642

Inventors:

- St. Paul MN, US
Steven P. Swanson - Blaine MN, US
Paul R. Klaiber - Mahtomedi MN, US

International Classification:

A61K 8/66
C12N 9/08
A61K 8/22
A61Q 11/00

Abstract:

A method of removing calculus from a tooth is described comprising: applying aqueous compositions A and B to the tooth surface, wherein the composition A comprises hydrogen peroxide or a precursor thereto and composition B comprises catalase and a stabilizer comprising hydroxyl groups; and removing at least a part of the calculus from the tooth surface. Preferred stabilizers include dipropylene glycol and 1,3 propane diol. Also described are aqueous compositions and kits.

US Patent:

20200326118, Oct 15, 2020

Filed:

Dec 21, 2018

Appl. No.:

16/957643

Inventors:

- St. Paul MN, US
Steven P. Swanson - Blaine MN, US
Garth V. Antila - Hudson WI, US
Daniel R. Fronek - Woodbury MN, US
Caleb T. Nelson - Woodbury MN, US
David F. Slama - City of Grant MN, US

International Classification:

F25D 21/04
B32B 3/30
F28F 17/00
B08B 17/06

Abstract:

A condensation management apparatus comprises a first microstructured film arranged to condense water vapor on a substantially vertical surface of a component. The first film comprises channels disposed on first and second major surfaces of the first film and dimensioned to support capillary movement of condensate. The channels have a channel axis substantially parallel with a longitudinal axis of the first film. The longitudinal axis of the first film is tilted at a tilt angle of at least 4 degrees with respect to an axis normal to a direction of gravity. Openings in the channels are disposed at one or both end edges of the first film. The openings provide condensate release locations of the first film. A second film is disposed over a portion of the first film. The second film attaches the first film to the substantially vertical surface of the component.

US Patent:

20200124319, Apr 23, 2020

Filed:

Nov 29, 2017

Appl. No.:

16/466179

Inventors:

- St. Paul MN, US
Steven P. Swanson - Blaine MN, US

International Classification:

F24F 13/22

Abstract:

A condensation management system includes an elongated flexible film configured to be stretched under tension between a first film support and a second film support. The film includes first and second ends that extend laterally across a width of the film. The film includes first and second sides that extend longitudinally between the first and second film ends. The film has a concave surface and an opposing convex surface extending between the first and second sides of the film. Microchannels are disposed in at least one of the concave surface and the convex surface. The microchannels induce a predetermined radius of curvature in the concave and convex surfaces of the film when the film is stretched longitudinally between the first and second film supports.