Thomas I Insley

US Patent:

6454839, Sep 24, 2002

Filed:

Oct 19, 1999

Appl. No.:

09/420701

Inventors:

Joel K. Hagglund - Oakdale MN
Thomas I. Insley - Lake Elmo MN
Todd W. Johnson - Minneapolis MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B03C 345

US Classification:

96 67, 55521, 95 78, 95 79, 96 69, 96 77, 96100

Abstract:

An electrofiltration apparatus is provided having at least one electrostatically charged polymeric film layer having surface structures. The film layers may be configured as a collection cell that has the structured film layer defining a plurality of ordered inlet openings through a face of the collection cell and corresponding air pathways, thereby forming an open, porous volume. The air pathways are defined by a plurality of flow channels formed by the structured film layers. The electrofiltration apparatus is coupled with an ionizer which actively induces charges onto the particles to be removed by the collection cell.

US Patent:

6471746, Oct 29, 2002

Filed:

Apr 2, 2001

Appl. No.:

09/824199

Inventors:

Joel K. Hagglund - Oakdale MN
Thomas I. Insley - Lake Elmo MN
Todd W. Johnson - Minneapolis MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B03C 345

US Classification:

95 78, 55521, 55DIG 39, 95 79

Abstract:

An electrofiltration process is provided having at least one electrostatically charged polymeric film layer having surface structures. The film layers may be configured as a collection cell that has the structured film layer defining a plurality of ordered inlet openings through a face of the collection cell and corresponding air pathways, thereby forming an open, porous volume. The air pathways are defined by a plurality of flow channels formed by the structured film layers. The electrofiltration process is coupled with an ionizer which actively induces charges onto the particles to be removed by the collection cell.

US Patent:

6575165, Jun 10, 2003

Filed:

Aug 3, 2000

Appl. No.:

09/632142

Inventors:

David Cook - Bracknell, GB
Raymond Odell - Brookmans Park, GB
Ian T. Petherbridge - Bognor Regis, GB
Pierre Legare - Addison, CA
Robert P. Lapointe - Nepean, CA
Kenneth J. Krepel - North St. Paul MN
David M. Blomberg - Lino Lakes MN
Derek S. Baker - Lake Elmo MN
James R. Betz - Hudson WI
Thomas I. Insley - Lake Elmo MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

A62B 1808

US Classification:

12820617, 12820512, 12820527, 12820529

Abstract:

The present invention relates to a fan-forced positive pressure breathing apparatus commonly known as a Powered Air Purifying Respirators (PAPR) system, and specifically concerns the connecting of the breathing components of such equipment. The invention is a method and apparatus for rapid engagement of PAPR breathing components (such as air supply lines and filter elements to a blower housing). The invention also provides for indicating and/or monitoring whether the relative components have been aligned and coupled in sealed engagement.

US Patent:

6923182, Aug 2, 2005

Filed:

Jul 18, 2002

Appl. No.:

10/198563

Inventors:

Seyed Abolhassan Angadjivand - Woodbury MN, US
James E. Springett - Hudson WI, US
Thomas I. Insley - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

A62B007/10

US Classification:

12820619, 12820616, 12820527, 12820529

Abstract:

A filtering face mask that includes a mask body that is adapted to fit over the nose and mouth of a person and a harness that is attached to the mask body. The mask body comprises i) a first shaping layer that has been molded; ii) a second shaping layer that has been molded; iii) a filtration layer that is disposed between the first and second shaping layers; iv) a first adhesive layer that adheres the first shaping layer to the filtration layer; and v) a second adhesive layer that adheres the second shaping layer to the filtration layer.

US Patent:

7444687, Nov 4, 2008

Filed:

Aug 29, 2005

Appl. No.:

11/215588

Inventors:

Luciana M. Sato - Campinas, BR
Glaucia C. Gabas - Campinas, BR
Dean M. Remer - Woodbury MN, US
Thomas I. Insley - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

A42B 1/06

US Classification:

2209, 128857

Abstract:

A hearing protective device that includes a headpiece, a first earmuff affixed to the headband, and a second earmuff affixed to the headband, each earmuff including an ear cup that includes a cellular material and that has a distal exterior surface that includes exposed cellular material, and a proximal exterior surface.

US Patent:

7703179, Apr 27, 2010

Filed:

Nov 9, 2001

Appl. No.:

10/007608

Inventors:

Dennis E. Ferguson - Mahtomedi MN, US
Thomas I. Insley - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B25G 1/10

US Classification:

16431, 16DIG 12

Abstract:

This disclosure relates to a method for making a polymeric article mold, a method for making a polymeric article with that mold, and improved surface topography features for a polymeric article. A prototype article is formed and then coated with a thin conductive layer. The coated prototype article is then electroformed until nickel plated to a sufficient depth to define a nickel plating tool. After the prototype article has been removed from the mold face of the nickel tool, the tool can be used as a mold for forming finished polymeric articles which replicate the original prototype article. The use of fine topography features such as a dense upstanding stem array on the surface of the prototype article facilitates accurate and complete electroforming by increased surface area presentation. The disclosure also presents improvements to microreplicated surface structures such as stem arrays. The improvements include the formation on a stem array having separate zones of stems of differing heights, and the formation of directional microreplicated features (e. g.

US Patent:

7849856, Dec 14, 2010

Filed:

Jun 25, 2001

Appl. No.:

09/888943

Inventors:

William A. Mittelstadt - Woodbury MN, US
David M. Castiglione - Hudson WI, US
Thomas I. Insley - West Lakeland MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

A61M 16/00
A62B 18/02
A62B 7/10
A62B 9/02
A62B 18/10
F16K 21/04

US Classification:

12820615, 12820515, 12820525, 12820527, 12820529, 12820524, 12820612, 12820613, 12820621, 12820628, 12820712

Abstract:

A unidirectional valve, wherein the valve comprises a valve body including a frame, a valve opening through the frame, and a valve seat extending from the frame and at least partially surrounding the valve opening. The valve further includes a valve flap having a first portion attached to the frame and an adjacent second portion free to move from a first position where the second portion is in contact with at least a part of the valve seat to a second position where at least part of the second portion is spaced from the valve seat, wherein the valve flap has a contour profile. The contoured profile may be along the length of the valve flap, between the point of attachment of the flap to the frame and the flap end, or from one flap side edge to a second side edge.

US Patent:

7955570, Jun 7, 2011

Filed:

Feb 28, 2007

Appl. No.:

12/279768

Inventors:

Thomas I. Insley - Lake Elmo MN, US
Larry A. Brey - Woodbury MN, US
Gina M. Buccellato - Eagan MN, US
Duane D. Fansler - Dresser WI, US
Marvin E. Jones - Grant MN, US
Badri Veeraraghavan - Woodbury MN, US
Thomas E. Wood - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B01J 8/02
B01D 50/00
B01J 23/02

US Classification:

422222, 422211, 422177, 422180, 502344, 502330, 423246, 423247

Abstract:

Highly active, low pressure drop catalyst systems. Catalytically active material is provided on at least a portion of the channel sidewalls of a body comprising one or more flow-through channels. The channel sidewalls preferably bear a charge, e. g. , an electrostatic or electret charge, to help adhere the catalytically active material to the sidewall. The catalytically active material preferably includes gold provided on a particulate support, and PVD techniques are used to deposit catalytically active gold onto the support. Optionally, the gold-bearing particulates may be charged as well in a manner to facilitate attraction between the particulates and the sidewalls.