1
William A Mittelstadt, David M Castiglione: Unidirectional respirator valve. 3M Innovative Properties Company, Michaele A Hakamaki, Karl G Hanson, Kevin W Raasch, April 26, 2005: US06883518 (42 worldwide citation)

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 ...


2
James A Burns, Frank J Fabin, Floyd L Foslien, William A Mittelstadt: Protective helmet system. 3M Innovative Properties Company, Michaele A Hakamaki, October 9, 2001: US06298498 (38 worldwide citation)

A jaw piece is attachable to a base edge of the helmet. The jaw piece and a portion of the base edge of the helmet define a user viewing window. A first face shield is pivotable between an open position and a closed position extending across the viewing window. A seal is provided to engage with a pe ...


3
Brian D Goers, Troy W Heuermann, Gary M Palmgren: Apparatus for rotative abrading applications. Minnesota Mining and Manufacturing Company, Michaele A Hakamaki, March 10, 1998: US05725421 (34 worldwide citation)

A support shoe for supporting an abrasive tape having an abrasive face and an opposed back face, wherein the support shoe comprises a pressure face including a frictional engagement material for frictionally engaging the back face of the abrasive tape. The frictional engagement material comprises a ...


4
Alden R Miles, Timothy A Mertens: Method and apparatus for adhering linerless repositionable sheets onto articles. 3M Innovative Properties Company, Michaele A Hakamaki, March 5, 2002: US06352751 (30 worldwide citation)

A method and apparatus for sequentially and precisely registering cut sheets for application onto advertising signatures at high speeds employs an initial roll of sheeting material. The sheeting material is unwound to track a process path, where eyemarks on the sheeting material are detected for use ...


5
Augustine Liu: Aqueous cleaning composition including a nonionic surfactant and a very slightly water-soluble organic solvent suitable for hydrophobic soil removal. Minnesota Mining and Manufacturing Company, Michaele A Hakamaki, July 13, 1999: US05922665 (28 worldwide citation)

A composition capable of removing hydrophobic soils is provided that includes a nonionic surfactant; a very slightly water soluble organic solvent; water; and an optional additive. Improved hydrophobic soil removal is achieved wherein an amount of the slightly water soluble solvent with respect to a ...


6
Joseph P Callahan Jr, Kevin M Hamer, Patricia R Konsti, David C Windorski: Attachment strips. Minnesota Mining and Manufacturing Company, Michaele A Hakamaki, July 28, 1998: US05786062 (28 worldwide citation)

Attachment strips that can be withdrawn from an enclosure, each comprising a flexible backing layer, a field of hooks along and projecting from one of its surfaces; and a first layer of pressure sensitive adhesive along one of its surfaces. The strips can be releasably adhered to each other by their ...


7
Keith R Lyon, Michael M Rock Jr: Method for the manufacture of anti-microbial articles. 3M Innovative Properties Company, Michaele A Hakamaki, March 28, 2000: US06042877 (28 worldwide citation)

A method for making an anti-microbial article is described, the method comprising: providing a substrate; forming a solution comprising a chelating polymer and a metal ion; depositing the solution on the substrate; drying the substrate to form a coated substrate; and adding a potentiator to the coat ...


8
Philip G Martin, Gary L Olson, Dennis G Welygan: Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments. 3M Innovative Properties Company, Michaele A Hakamaki, October 26, 1999: US05972463 (27 worldwide citation)

Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments, such as sheath-core and side-by-side filaments, comprising a first plastic component and a second lower-melting component defining all or at least part of the material-air boundary of the filaments. The fila ...


9
Steven J Hamrock, Fidelis C Onwumere, Bradford B Wright, Michael A Yandrasits: Floor finish compositions. 3M Innovative Properties Company, Michaele A Hakamaki, March 6, 2001: US06197844 (27 worldwide citation)

A monomer useful in the formulation of a radiation curable coatable composition comprises (a) polyfunctional isocyanurate having at least three terminal reactive groups reacted with (b) hydroxyalkyl acrylate and (c) tertiary amine alcohol in a molar ratio of a:b:c of about 1:1-2.5:0.5-2, wherein b&p ...


10
Brett R Johnson, William J Swanson: Breathing tube connection for respiratory protective headgear. 3M Innovative Properties Company, Michaele A Hakamaki, August 28, 2001: US06279573 (25 worldwide citation)

A connector for attachment of a breathing tube to a respirator. The connector includes a first conduit and a transition conduit that form a connector body. A cantilevered snap latch extends from the connector body. A connector assembly including a recessed receiving structure on a respirator helmet ...