Abstract: Provided is a system for directly sensing, measuring, or monitoring the temperature of an electrical conductor (31) of a power cable (10). A temperature sensitive capacitor (21C) is disposed in direct thermal contact with the electrical conductor (31). The temperature sensitive capacitor (21C) includes a dielectric material that has a dielectric constant variable with the temperature of the electrical conductor (31). The temperature of the electrical conductor (31) can be sensed, measured, or monitored by measuring the capacitance of the temperature sensitive capacitor (21C).
Type:
Grant
Filed:
October 30, 2014
Date of Patent:
October 29, 2019
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Zhiguo Wen, Jaewon Kim, Justin M. Johnson, Xeutao Yu, David V. Mahoney, Michael D. Benson, Christopher D. Sebesta, Myungchan Kang
Abstract: Adhesive articles suitable for use in medical applications include a siloxane-based pressure sensitive adhesive layer, and a breathable conformable backing having a first surface and a second surface. The siloxane-based pressure sensitive adhesive layer is coated on the first surface of the breathable conformable backing, and the second surface of the breathable conformable backing comprises a treated surface. The siloxane-based pressure sensitive adhesive layer can be attached to skin and other adhesive articles can be releasably adhered to the treated surface to form adhesive constructions.
Type:
Grant
Filed:
May 16, 2013
Date of Patent:
October 29, 2019
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Simon S. Fung, David T. Amos, Junkang J. Liu, Timothy M. Dietz, Jing Ma, Charles W. Opp
Abstract: An (meth)acrylate pressure-sensitive adhesive copolymer is described prepared by crosslinking with a (meth)acrylic crosslinking monomer containing an allyl group.
Type:
Grant
Filed:
September 11, 2015
Date of Patent:
October 29, 2019
Assignee:
3M Innovative Properties Company
Inventors:
Corinne E. Lipscomb, Kevin M. Lewandowski
Abstract: A method of making a mechanical fastening strip and a reticulated mechanical fastening strip are disclosed. The method includes providing a backing having upstanding posts; providing interrupted slits through the backing, the interrupted slits being interrupted by at least one intact bridging region; spreading the slit backing to provide multiple strands separated from each other between at least some of the bridging regions to provide at least one opening; and fixing the multiple strands of the backing in a spread configuration. The reticulated mechanical fastening strip includes multiple strands of a backing attached to each other at bridging regions in the backing and separated from each other between the bridging regions to provide openings. Upstanding posts on each of the multiple strands have bases attached to the backing, and each of the multiple strands has a width that is greater than that of the bases of its attached upstanding posts.
Type:
Grant
Filed:
September 21, 2015
Date of Patent:
October 29, 2019
Assignee:
3M Innovative Properties Company
Inventors:
Leigh E. Wood, Thomas J. Gilbert, Mark A. Peltier, Peter Kitzer, Volker Hauschildt, Andreas Urban, William C. Unruh, Kristopher K. Biegler
Abstract: An orthodontic bracket is provided, comprising a bracket body configured to couple to an arch member and a first bracket footing disposed adjacent the bracket body. The first bracket footing has at least one major surface that is configured to mate with a receptacle formed from a bracket base, and extends beyond a plane formed by a major surface of the bracket body. In an embodiment, the base can be configured as a polymeric shell portion that is part of a removable dental appliance, wherein the polymeric shell portion can have one or more cavities shaped to receive one or more teeth.
Abstract: A nanocomposite is provided including spherical pyrogenic silica nanoparticles dispersed in a curable resin or a curing agent. The nanocomposite contains less than 2% by weight solvent and less than 0.5% by weight dispersant based on the nanoparticle weight. A composite is also provided including from about 4 to 70 weight percent of spherical pyrogenic silica nanoparticles dispersed in a cured resin, and a filler embedded in the cured resin. Optionally, the composite further contains a curing agent. Further, a method of preparing a nanoparticle-containing curable resin system is provided including mixing from 10 to 70 weight percent of aggregated spherical pyrogenic silica nanoparticles with a curable resin to form a mixture. The mixture contains less than 2% by weight solvent and less than 0.5% by weight dispersant based on the nanoparticle weight.
Type:
Grant
Filed:
May 17, 2018
Date of Patent:
October 22, 2019
Assignee:
3M Innovative Properties Company
Inventors:
Peter D. Condo, James E. Thorson, Jeremy O. Swanson, Kristin L. Thunhorst
Abstract: Compounds having hindered amine and oxyalkyl amine light stabilizers can mitigate the adverse effects of actinic radiation, such as visible and ultraviolet light, in particular on substrates such as glass or ceramic substrates. Polymers derived from such compounds. Nanoparticles, substrates, such as glass or ceramic substrates, or both nanoparticles and substrates, having such compounds affixed thereto. Articles containing at least one of such polymers, nanoparticles, substrates, or compounds.
Type:
Grant
Filed:
August 28, 2018
Date of Patent:
October 22, 2019
Assignee:
3M Innovative Properties Company
Inventors:
Thomas P. Klun, Mark A. Roehrig, Joseph C. Spagnola, Alan K. Nachtigal, Charles J. Hoy, Richard J. Pokorny, William J. Hunt, Jason T. Petrin, Paul B. Armstrong, Suresh S. Iyer
Abstract: Techniques are described for a lens containing high dielectric resonators. In one example, a lens comprises a substrate for propagating an electromagnetic wave and a plurality of resonators dispersed throughout the substrate. Each of the plurality of resonators has a diameter selected based at least in part on a wavelength of the electromagnetic wave and is formed of a dielectric material having a resonance frequency selected based at least in part on a frequency of the electromagnetic wave. Each of the plurality of resonators also has a relative permittivity that is greater than a relative permittivity of the substrate. At least two of the plurality of resonators are spaced within the substrate according to a lattice constant that defines a distance between a center of a first one of the resonators and a center of a neighboring second one of the resonators.
Type:
Grant
Filed:
January 13, 2015
Date of Patent:
October 22, 2019
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Jaewon Kim, Douglas B. Gundel, Ronald D. Jesme, Justin M. Johnson
Abstract: Electrochemical device (e.g., a capacitive device, a battery, or hybrid device) comprising a configuration of layers comprising at least one combination, wherein each combination comprises a porous particulate separator layer disposed between a first porous electrode layer and a second porous electrode layer, and optionally at least one particulate current collector layer, and a liquid electrolyte, wherein all the combinations, optional particulate current collector layers, and liquid electrolyte are encased in a package, and wherein essentially all the liquid electrolyte is confined within the configuration of layers. Capacitive electrochemical device comprising a first combination comprising a porous particulate separator layer disposed between a first porous electrode layer and a second porous electrode layer, optionally at least one particulate current collector layer, and a liquid electrolyte.
Abstract: Provided is a retroreflective article comprising a fibrous material and a perforated retroreflective material attached to said fibrous material. Embodiments of the article achieve desirable values under the ASTM F2731-11 Transmitted and Stored Energy Test, the E96/E96M-12 Moisture Vapor Transmission Rate Test, and ASTM E810-03 (2013) Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry.
Type:
Grant
Filed:
December 12, 2013
Date of Patent:
October 22, 2019
Assignee:
3M Innovative Properties Company
Inventors:
David B. Running, Shri Niwas, Matthew R. Lehmann, Douglas J. Hall, Kenneth L. Hanzalik, Denise A. Barrera, Alyson C. Phillips, Loretta L. Lucas
Abstract: Magneto-Mechanical Resonator Sensor with Mass Distribution Channel Some aspects of the present disclosure feature a sensing device (e.g. for temperature, moisture or detection of substances) comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The spacer is disposed between the magnetic bias layer and the resonator. At least one of the resonator surfaces has a predefined channel. The environmental change receptor is disposed proximate to the predefined channel. In response to a change in environment, the environmental change receptor distributes along a part of the channel.
Type:
Grant
Filed:
August 25, 2015
Date of Patent:
October 22, 2019
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Orlin B. Knudson, Jia Hu, Chaodi Li, Richard L. Rylander, Cheryl Lee Senger Elsbernd, Stephen J. Willett, Andrew P. Bonifas
Abstract: A component of an exhaust system for an internal combustion engine. The component comprises an exhaust system structure (20) having an interior (22) through which exhaust gases flow and an exterior (21), and a thermal insulating wrap (10) for thermally insulating at least a portion of the exterior (21) of the exhaust system structure (20). The thermal insulating wrap (10) comprises an aqueous mixture comprising an inorganic binder and inorganic filler particles, and a fabric comprising inorganic fibers. The fabric is impregnated with the aqueous mixture so as to form a pliable binder wrap (11). The pliable binder wrap (11) is wound completely around at least a portion of the exhaust system structure (20). It can be desirable for the component to further comprise at least one thermal insulator comprising inorganic fibers, where the thermal insulator is disposed between the pliable binder wrap (11) and the exterior 21 of the exhaust system structure (20).
Abstract: A looped pile static reduction blanket or cloth, an apparatus including the looped pile static reduction blanket, and a technique to neutralize static and static patterns from a polymeric film surface during processing, to enable higher speeds and fewer defects during web transport and subsequent processing of wound film rolls, an apparatus including the looped pile static reduction cloth, and a technique to neutralize static from a polymeric shaped part during processing, to enable fewer defects. The looped pile static reduction blanket includes a static reduction engagement cloth that is resilient and can facilitate discharge of static from a web to ground before, during, and after contact with a charged web.
Type:
Grant
Filed:
December 18, 2014
Date of Patent:
October 22, 2019
Assignee:
3M Innovative Properties Company
Inventors:
Joshua M. Retterath, Bruce E. Tait, Chris J. Tanley, Fred J. Roska, Terence A. Lee, Kevin B. Newhouse
Abstract: Polymeric layer having first and second, generally opposed major surfaces, comprising an array of openings extending between the first and second major surfaces. The polymeric layers are useful, for example, as components in personal care garments such as diapers and feminine hygiene products. They can also be useful for filtering (including liquid filtering) and acoustic applications.
Type:
Grant
Filed:
September 19, 2016
Date of Patent:
October 22, 2019
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Ronald W. Ausen, Thomas P. Hanschen, William J. Kopecky, Thomas L. Wood, Wei Zhang
Abstract: In some examples, a system includes a plurality of articles of personal protected equipment (PPE) that are each assigned to a particular worker. The system may also include a data hub that detects an input that initiates a broadcast of diagnostic self-check messages; identifies, in response to the input, each article of PPE of the plurality of articles of PPE; broadcasts, based on identifying each article of PPE, the diagnostic self-check messages to the respective articles of PPE, wherein each article of PPE receives its respective self-check message at its communication component; in response to receiving a set of diagnostic acknowledgement messages from one or more of the plurality of articles of PPE that have performed a diagnostic self-check, determines whether the set of diagnostic acknowledge messages satisfy one or more self-check criteria; and performs one or more operations based on whether the self-check criteria are satisfied.
Type:
Application
Filed:
October 11, 2017
Publication date:
October 17, 2019
Applicant:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Kiran S. Kanukurthy, Steven T. Awiszus, Eric C. Lobner, Michael G. Wurm
Inventors:
Thomas C. Meier, Mark W. Baldwin, Mario A. Davenport, Zachary A. Schaefer, Daniel J. Rebecca, Dennis G. Johnson, Lac V. Nguyen, George H. Kormanos