Patents Assigned to 3M
-
Patent number: 11885999Abstract: An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs?2.5.Type: GrantFiled: May 4, 2021Date of Patent: January 30, 2024Assignee: 3M INNOVATION PROPERTIES COMPANYInventors: Bharat R. Acharya, Robert D. Taylor, Joseph P. Attard, Benjamin J. Forsythe, David T. Yust, Matthew E. Sousa, Jason S. Petaja, Anthony M. Renstrom, William Blake Kolb, Matthew S. Cole, Matthew S. Stay, Matthew R.D. Smith, Jeremy O. Swanson, Tri D. Pham, David A. Rosen, Qunyi Chen, Lisa A. DeNicola, Quinn D. Sanford, Carl A. Stover, Lin Zhao, Gilles J. Benoit
-
Patent number: 11883261Abstract: In some illustrative examples, a conduit interface may include a mounting surface and an exterior-facing surface positioned across from the mounting surface, an internal cavity, an inlet port, a vent, and a temporary plug. The internal cavity may include an opening positioned proximate to the mounting surface. The inlet port may be in in fluid communication with the internal cavity through the exterior-facing surface. The vent may be in fluid communication with the internal cavity through the exterior-facing surface. The temporary plug may be configured to temporarily preclude fluid communication through the vent. The conduit interface may be suitable for providing fluid communication with a dressing at a tissue site. Also provided are other examples, apparatus, systems, and methods.Type: GrantFiled: June 1, 2017Date of Patent: January 30, 2024Assignee: 3M Innovative Properties CompanyInventors: Richard Daniel John Coulthard, Christopher Brian Locke
-
Patent number: 11883692Abstract: A top bracket for supporting a safety cable of a vertical climbing fall protection system, the bracket including a base plate and a pivotally deflectable plate that is integrally and pivotally connected to the base plate by a neck. The top bracket may also include an abutment plate with a forward abutment surface that is separated from a rearward abutment surface of the pivotally deflectable plate by an elongate gap.Type: GrantFiled: January 28, 2021Date of Patent: January 30, 2024Assignee: 3M Innovative Properties CompanyInventors: Rick G. Miller, Keith G. Mattson
-
Patent number: 11885989Abstract: A light control film, comprises a light input surface and alight output surface opposite the light input surface. Alternating transmissive regions and absorptive regions are disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and the alternating transmissive region and absorptive regions have a relative transmission at a viewing angle of 0 degrees of at least 75%.Type: GrantFiled: December 13, 2018Date of Patent: January 30, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Daniel J. Schmidt, Caleb T. Nelson, Kevin W. Gotrik, Raymond J. Kenney, John A. Wheatley, Kenneth A. Epstein, Gary T. Boyd, Corey D. Balts
-
Patent number: 11887161Abstract: At least some aspects of the present disclosure feature systems and methods for delivering content to a mobile device. In one embodiment, the system receives location information of the mobile device and determines a response duration. The system selects a content piece to deliver to the mobile device based on information regarding content comparisons or experimental units.Type: GrantFiled: May 4, 2022Date of Patent: January 30, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Brian E. Brooks, Frederick J. Arsenault
-
Patent number: 11877911Abstract: Systems, apparatuses, and methods for providing negative pressure to a tissue site are disclosed. Illustrative embodiments may include an apparatus or system for delivering negative-pressure to a tissue site, which can be used in conjunction with low-profile distribution components for wound therapy. Such apparatus may include a low-profile dressing interface or connector comprising at least two fluid pathways fluidly coupled to a recessed space of the connector, one for providing negative pressure to a tissue interface or manifold and the other for sensing the negative pressure within the recessed space adjacent the tissue interface. In some embodiments, a pressure-offloading layer may be disposed against at least one of the fluid pathways.Type: GrantFiled: November 12, 2019Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: Christopher Brian Locke, Thomas Alan Edwards
-
Patent number: 11878106Abstract: In one example embodiment, a system for treating a tissue site is disclosed comprising a dressing adapted to contact the tissue site and provide a fluid seal between a therapeutic environment and a local external environment, and a solution source fluidly coupled to the dressing and adapted to deliver an antimicrobial solution comprising a peroxy ?-keto carboxylic acid, such as peroxy pyruvic acid, to the tissue interface. The system may further comprise a negative-pressure source fluidly coupled to the dressing and adapted to provide negative pressure to the therapeutic environment after delivery of the antimicrobial fluid to the therapeutic environment.Type: GrantFiled: March 18, 2020Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: Shannon C. Ingram, Christopher A. Carroll
-
Patent number: 11877604Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.Type: GrantFiled: October 6, 2020Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: John M. Facer, Christopher P. Henderson, Peter S. Leonard, Desmond T. Curran
-
Patent number: 11880104Abstract: A reflective polarizer has a transmittance for a first polarization state having a band edge separating a first wavelength range extending at least from about 450 nm to about 900 nm and a second wavelength range extending at least from about 1100 nm to about 1300 nm. For the first polarization state, the reflective polarizer has an average transmittance in the first wavelength range less than about 10% and an average transmittance in the second wavelength range greater than about 80%; and for a second polarization state, the reflective polarizer has an average transmittance in the first wavelength range greater than about 40% and an average transmittance in the second wavelength range greater than about 80%. A display system includes the reflective polarizer and an infrared light source configured to emit an infrared light having a wavelength W1. The band edge has a band edge wavelength W2>W1.Type: GrantFiled: September 10, 2021Date of Patent: January 23, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Carl A Stover, Robert D. Taylor, Bharat R. Acharya
-
Patent number: 11879078Abstract: The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a) a cationically self-polymerizable monomer; b) a polymerization initiator of the cationically self-polymerizable monomer which is initiated at a temperature T1; c) a curable monomer which is different from the cationically self-polymerizable monomer; and d) a curing initiator of the curable monomer which is initiated at a temperature T2 and which is different from the polymerization initiator of the cationically self-polymerizable monomer. According to another aspect, the present disclosure is directed to a partially cured precursor of a structural adhesive composition. According to still another aspect, the present disclosure relates to a method of bonding to parts. In yet another aspect, the disclosure relates to the use of a curable precursor or a partially cured precursor as described above, for industrial applications, in particular for body-in-white bonding applications for the automotive industry.Type: GrantFiled: October 3, 2019Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: Adrian T. Jung, Boris Tasch, Dirk Hasenberg, Olaf Ludewig, Elisabeth Cura
-
Patent number: 11880059Abstract: A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.Type: GrantFiled: August 26, 2020Date of Patent: January 23, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Yasuyuki Takeda
-
Patent number: 11879779Abstract: An optical system (150) is disclosed and includes an optical sensor (154), a plurality of photosensitive pixels (178) disposed on the optical sensor, a wavelength-selective optical filter (158) in optical communication with the photosensitive pixels, the wavelength-selective optical filter being disposed remotely from the optical sensor, and a plurality of spatially-variant areas (220, 224, 228, 232) disposed in the optical filter, at least one area of the plurality of spatially-variant areas including a downconverter (400, 500).Type: GrantFiled: June 23, 2020Date of Patent: January 23, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: John A. Wheatley, Mark A. Roehrig
-
Patent number: 11880072Abstract: An optical ferrule includes at least one light affecting element configured to affect one or more characteristics of light from an optical waveguide as the light propagates in the optical ferrule, the light affecting element having an input surface. At least one receiving element receives and secures the optical waveguide to the ferrule so that an output surface of the waveguide is optically coupled to the input surface of the light affecting element. A waveguide stop limits movement of the waveguide toward the input surface of the light affecting element when the optical waveguide is installed in the receiving element. A space between the output surface of the optical waveguide and the input surface of the light affecting element is inaccessible to the optical waveguide when the optical waveguide is installed in the receiving element.Type: GrantFiled: March 14, 2022Date of Patent: January 23, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael A. Haase, Terry L. Smith, Bing Hao, Changbao Ma
-
Patent number: 11877912Abstract: Provided herein is a system and method for coupling a wearable therapy system to a dressing and detaching the wearable therapy system from the dressing. One aspect provides a system including a drape with a switchable adhesive layer and a therapy system adhered to the drape via the switchable adhesive layer. The therapy system includes one or more radiation sources that can emit radiation wavelengths (e.g., light or electromagnetic waves) to impinge upon the adhesive and deactivate the adhesive when it is desired to remove the therapy system from the drape.Type: GrantFiled: January 3, 2019Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: Justin Alexander Long, Christopher Brian Locke, Richard Coulthard
-
Patent number: 11880176Abstract: A system and method of simulating and optimizing industrial and other processes includes a computer that performs multivariate analysis of input variables and output variables to generate a data model of the operation of the process. For industrial applications, the input variables include process variables and the output variables include result variables from the operation of the industrial process. The data model determines contributions to changes in the output or result variables by the respective input or process variables and is provided to a predictive algorithm to identify parameter values for input or process variables expected to have a most significant impact on the output or result variables during performance of the process. The outputs of the predictive algorithm are parameter values that are provided as input or process variables to the industrial process for simulation or performance optimization or product recommendations/optimizations.Type: GrantFiled: July 28, 2022Date of Patent: January 23, 2024Assignee: 3M Innovative Properties CompanyInventors: Maiken Givot, Mats E. Johansson, Lothar N. Tacke, Lars M. Wistrand, John N. Willcock
-
Patent number: 11873403Abstract: Electric field grading compositions comprise a particulate cupric oxide dispersed in a matrix material, wherein the electric field grading composition has a threshold voltage, a breakdown voltage, and exhibits a reversible electric field switchable current-voltage relationship that substantially follows the equation: I=kV? wherein: I is current in amperes; k is a constant greater than 0; V is applied voltage in volts, wherein V is between the threshold voltage and the breakdown voltage, inclusive; and ? is a real number greater than 1. The electric field grading composition is useful for reducing electric field stress at a joint or termination of a conductive substrate. Articles including the electric field grading disposed on a surface of a conductive substrate are also disclosed.Type: GrantFiled: May 14, 2019Date of Patent: January 16, 2024Assignee: 3M Innovative Properties CompanyInventor: Dipankar Ghosh
-
Patent number: 11874510Abstract: An optical cable subassembly includes one or more optical waveguides, at least light coupling unit comprising a first attachment area permanently attached to the optical waveguides, and at least one cable retainer comprising a second attachment area permanently attached to the optical waveguides and adapted to be installed in a housing. A length of the optical waveguides between the first attachment area and the second attachment area allows a bend in the optical waveguides that provides a predetermined mating spring force at a predetermined angle of the light coupling unit when installed in the housing.Type: GrantFiled: June 21, 2022Date of Patent: January 16, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael A. Haase, Terry L. Smith, Alexander R. Mathews, James M. Nelson
-
Patent number: 11875919Abstract: A multilayer electric field grading article comprises first and second layers forming a discrete interface. The first layer comprises a first electric field grading composition comprising first particles dispersed in a first matrix material. The second layer comprises a second electric field grading composition comprising second particles, compositionally different than the first particles, dispersed in a second matrix material. The first and second layers have respective first and second degrees of nonlinearity between respective first and second onset voltages and corresponding first and second breakdown voltages. The first and second layers taken together have a combined onset voltage that is higher than the first and second onset voltages, and the first and second layers taken together have a greater combined degree of nonlinearity than each of the first and second degrees of nonlinearity taken individually.Type: GrantFiled: February 19, 2020Date of Patent: January 16, 2024Assignee: 3M Innovative Properties CompanyInventors: Dipankar Ghosh, John Phan
-
Patent number: 11874508Abstract: A unitary optical ferrule is molded to include one or more elements for receiving and securing one or more optical waveguides one or more elements for affecting one or more characteristics of light from the optical waveguide while propagating the light within the ferrule. The optical ferrule also includes one or more first alignment features and one or more second alignment features that, when the ferrule is mated with a mating ferrule, each controls alignment of the ferrule with the mating ferrule along three mechanical degrees of freedom. The surface of the optical ferrule can be divided along the thickness axis into a first section and an opposing second section, wherein the first section of the surface includes the receiving and securing elements, the light affecting elements, and the first alignment features and the second section of the surface includes the second alignment features.Type: GrantFiled: January 6, 2023Date of Patent: January 16, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael A Haase, Alexander R. Mathews, Terry L. Smith, James M. Nelson
-
Patent number: D1011321Type: GrantFiled: March 3, 2023Date of Patent: January 16, 2024Assignee: 3M Innovative Properties CompanyInventors: William Atwood, Yi-Chi Huang, Jeffrey L Hamer, Paul D. Henry