Abstract: Apparatus includes a production tooling having a dispensing surface with a plurality of cavities and formed into an endless belt. An abrasive particle feeder dispenses shaped abrasive particles onto the dispensing surface and into the plurality of cavities. A resin coated backing receives shaped abrasive particles from the cavities of the production tooling at a deposit point. A detecting device detects a pattern transition zone as the production tooling moves in the direction of travel and provides pattern transition zone detection data to one or more controllers to control a speed of the production tooling and/or a speed of the resin coated backing as the detected pattern transition zone passes the deposit point to change a pattern density of the shaped abrasive particles in a portion of the resin coated backing corresponding to the pattern transition zone of the production tooling.
Type:
Grant
Filed:
December 10, 2019
Date of Patent:
May 28, 2024
Assignee:
3M Innovative Properties Company
Inventors:
Joseph B. Eckel, Thomas J. Nelson, Aaron K. Nienaber, Ann M. Hawkins, Amelia W. Koenig, Negus B. Adefris
Abstract: A composition comprises a cyanoacrylate polymer and a protected amine. A method comprises: providing a shaped model comprising a cyanoacrylate polymer; preparing an investment having a cavity that corresponds to the shaped model; and heating the shaped model to sufficient temperature that the cyanoacrylate polymer depolymerizes and volatilizes. A hardenable material may be cast in the investment to provide a replica of the shaped model. A curable composition comprises: a cyanoacrylate monomer; a free-radical photoinitiator; and a protected amine, wherein the curable composition is free of compounds that initiate anionic polymerization of the cyanoacrylate monomer at ambient temperature. A method of curing the curable composition is also disclosed.
Abstract: PROBLEM To provide a determining system, terminal device, and determining method that can automatically determine various types of indicators. RESOLUTION A determining system determines a status of an indicator where optical properties change under a specific environment, and is provided with: an image acquiring part that acquires an image containing the indicator; a type information acquiring part that acquires information indicating a type of the indicator; a color information acquiring part that acquires color information before change and after change of the indicator corresponding to the type; an extracting part that extracts a first region configured from a color after change of the indicator in the image based on the color information; and the status determining part that determines a shape of the first region extracted by the extracting part and status of the indicator based on a determination status corresponding to the type.
Abstract: The present description provides components that allow a respiratory protection device to be secured in a position of use by attachment with a headwear suspension. In some exemplary embodiments, a harness adapter is positioned along a strap of a headwear suspension and includes a harness attachment element that may releasably attach to a strap component of a respiratory harness assembly.
Type:
Grant
Filed:
March 24, 2017
Date of Patent:
May 28, 2024
Assignee:
3M Innovative Properties Company
Inventors:
David M. Castiglione, Michael J. Cowell, Nathan A. Abel, William A. Mittelstadt, Jill E. Gulliver, Ian Kelsall, August Michael, Oskar E. Juhlin, George J. Elliott
Abstract: An article includes a solid circuit die on a first major surface of a substrate, wherein the solid circuit die includes an arrangement of contact pads, and wherein at least a portion of the contact pads in the arrangement of contact pads are at least partially exposed on the first major surface of the substrate to provide an arrangement of exposed contact pads; a guide layer including an arrangement of microchannels, wherein the guide layer contacts the first major surface of the substrate such that at least some microchannels in the arrangement of microchannels overlie the at least some exposed contact pads in the arrangement of exposed contact pads; and a conductive particle-containing liquid in at least some of the microchannels. Other articles and methods of manufacturing the articles are described.
Type:
Grant
Filed:
December 23, 2019
Date of Patent:
May 28, 2024
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Ankit Mahajan, Saagar A. Shah, Daniel B. Taylor, Mikhail L. Pekurovsky, Kara A. Meyers, Kayla C. Niccum, David J. Rowe, Gino L. Pitera
Abstract: The present invention relates to a fluid delivery assembly for a spraying apparatus. The assembly comprises an outer cup, a lid having a fluid outlet adapted to couple the lid to the spraying apparatus, and a liner for holding paint. The fluid delivery assembly comprises an interlocking keyed geometry adapted to prevent rotation of at least one of the lid and the liner with respect to the cup. The interlocking keyed geometry comprises at least one of (a) at least one protrusion of the cup extending into at least one recess of the lid, and (b) at least one protrusion of the lid extending into at least one recess of the cup, wherein the liner is trapped between the protrusion and the recess. The invention also relates to liners for such fluid delivery assemblies, which may be provided as a set of liners having different inners volumes.
Abstract: Catalyst comprising an Ir layer having an outer layer with a layer comprising Pt directly thereon, wherein the Ir layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ir are present in an atomic ratio in a range from 0.01:1 to 10:1. Catalysts described herein are useful, for example, in fuel cell membrane electrode assemblies.
Type:
Grant
Filed:
April 11, 2019
Date of Patent:
May 21, 2024
Assignee:
3M Innovative Properties Company
Inventors:
Andrew J. L. Steinbach, Andrew T. Haug, Krzysztof A. Lewinski, Amy E. Hester, Grant M. Thoma, Cedric Bedoya
Abstract: A reflective polarizing imaging lens includes at least one optical film having an active area that is curved in two orthogonal directions. Edges of the optical film are arranged to form seams between segments of the optical film in the active area of the reflective polarizing imaging lens.
Type:
Grant
Filed:
September 7, 2022
Date of Patent:
May 21, 2024
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Robert M. Jennings, Jo A. Etter, Susan L. Kent, Erin A. McDowell, Timothy L. Wong, Zhisheng Yun
Abstract: Apparatus and method for joining two tubular elements (14, 22) at a joint using an adhesive that is non-flowable at ambient temperatures but flowable at an elevated temperature. A ring (12) of uncured, non-flowable adhesive is placed around the male end of a male (14)/female (22) pipe interface. Upon exposure to elevated temperatures, the ring (12) melts and flows down into the interface, and cures.
Abstract: Nanocomposite blends include metal oxide nanoparticles and at least two (meth)acrylic acid polymers where the nanoparticles are surface modified with a carboxylic acid silane and where the (meth)acrylic acid polymers are at least partially neutralized. The compositions are transparent, with high transmission and low haze up to very high nanoparticle loading. The compositions also exhibit improved mechanical properties of impact resistance and tensile modulus.
Abstract: A nose support for a pair of eyeglasses is disclosed. The nose support comprises an elongate main body comprising a flexing section which is reversibly deflectable between an unflexed state and a flexed state at a proximal end of the main body, a contact section at a distal end of the main body and a soft resilient organic polymeric shell which encases the main body.
Type:
Grant
Filed:
September 11, 2020
Date of Patent:
May 21, 2024
Assignee:
3M Innovative Properties Company
Inventors:
Laurent Froissard, Keith E. Fecteau, Gilbert R. Igo, Jimmy L. Wong
Abstract: Hollow fiber membranes, membrane contactors, and related production and use methods. The membranes include a substrate having a multiplicity of pores and a skin layer overlaying the porous substrate. The porous substrate includes a first semi-crystalline thermoplastic polyolefin (co)polymer resin and a nucleating agent in an amount effective to achieve nucleation. The skin layer includes a second semi-crystalline thermoplastic polyolefin (co)polymer resin derived by polymerizing at most 98 wt. % of 4-methyl-1-pentene monomer with at least 2 wt. % of linear or branched alpha olefin monomers. Preferably, the first thermoplastic polyolefin (co)polymer is different from the second thermoplastic polyolefin (co)polymer. The skin layer is less porous than the porous substrate and forms an outer surface of the hollow fiber with the porous substrate forming an inner surface. The hollow fibers are formed by co-extruding the porous substrate resin and the skin layer resin through an annular die.
Type:
Grant
Filed:
December 23, 2019
Date of Patent:
May 21, 2024
Assignee:
3M Innovative Properties Company
Inventors:
Kuan-Yin Lin, James C. DeLozier, Aurore Y. J. Mercelat, Mark McCormick, Jinsheng Zhou
Abstract: In general, a monitoring system includes one or more nodes that are capacitively coupled to a cable of a multiphase electric power line. In some examples, a node includes a coupling layer disposed over a jacket layer of the cable and capacitively coupled to a shield layer of the cable. In some examples, a node may include a first coupling layer capacitively coupled to a first cable, and a second coupling layer capacitively coupled to a second cable, such that the node is differentially coupled to the cable pair to generate a differential data signal and to perform at least one of: sensing a native signal within the cable pair; injecting an intentional signal into the cable pair; receiving an intentional signal from within the cable pair; or providing a channel characterization.
Type:
Grant
Filed:
December 31, 2020
Date of Patent:
May 21, 2024
Assignees:
3M Innovative Properties Company, Connected Intelligence Systems Ltd.
Inventors:
Douglas B. Gundel, Uri Bar-Ziv, Eyal Doron
Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are substituted heterocyclic thiols. The heterocyclic thiol has 2 nitrogen groups and a third group that may be an NH, N—NH2, O, or S group. The substituent group is an aromatic or heterocyclic aromatic group. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
Type:
Grant
Filed:
January 20, 2021
Date of Patent:
May 14, 2024
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Fuming B. Li, John M. Brandner, Nathan E. Schultz, John M. Sebastian