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    Fall arresting device event generation and monitoring
    61.
    发明授权
    Fall arresting device event generation and monitoring 有权

    公开(公告)号：US11541256B2

    公开(公告)日：2023-01-03

    申请号：US16633708

    申请日：2018-08-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Matthew J. Blackford ,  Zohaib Hameed ,  Ronald D. Jesme

    IPC: B21C47/14 ,  A62B35/00 ,  A62B1/10 ,  G08B21/04

    Abstract: A fall arresting device including a device housing, a shaft within the housing, a rotor assembly rotatably connected to the shaft that includes a drum and a disc having at least one region of a ferromagnetic material, an extendable lifeline connected to the drum, a magnetic sensor positioned stationary relative to the device housing and adjacent to the disc, and a that includes a hard-magnetic material. The magnet positioned stationary relative the device housing and the magnetic sensor, where the magnetic sensor is configured to detect a change in a magnetic field produced by the magnet when the disc rotates about the shaft, the change in the magnetic field induced by the at least one region of the ferromagnetic material being brought within close proximity to the magnet as the disc rotates.

    SHAPED ABRASIVE PARTICLES WITH CONCAVE VOID WITHIN ONE OF THE PLURALITY OF EDGES
    62.
    发明申请
    SHAPED ABRASIVE PARTICLES WITH CONCAVE VOID WITHIN ONE OF THE PLURALITY OF EDGES 有权

    公开(公告)号：US20220396722A1

    公开(公告)日：2022-12-15

    申请号：US17755014

    申请日：2020-10-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Joseph B. Eckel ,  Fay T. Salmon ,  Aaron K. Nienaber ,  Thomas J. Nelson ,  Cory M. Arthur ,  Alireza Ghaderi ,  Ronald D. Jesme ,  David T. Buckley

    IPC: C09K3/14 ,  B24D11/00

    Abstract: A shaped abrasive particle is presented. The shaped abrasive particle has a first and second surface. The first and second surfaces are substantially parallel to each other and separated by a thickness. Each of the first and second surfaces have a surface profile, which includes a plurality of corners and a plurality of edges connecting the plurality of corners. The shaped abrasive particle also includes a recess included wholly within one of the plurality of edges, wherein the recess is a concave void extending into the surface profile. The shaped abrasive particle also includes a magnetically responsive coating. The magnetically responsive coating causes the shaped abrasive particle to be responsive to a magnetic field. The shaped abrasive particle, when exposed to the magnetic field, experiences a net torque that causes the shaped abrasive particle to orient with respect to the magnetic field such that each of the first and second surfaces are substantially perpendicular to a backing.

    Wireless sensing system using sensing device with excitation element
    65.
    发明授权
    Wireless sensing system using sensing device with excitation element 有权

    公开(公告)号：US11346723B2

    公开(公告)日：2022-05-31

    申请号：US16949913

    申请日：2020-11-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andrew P. Bonifas ,  Nicholas T. Gabriel ,  Ronald D. Jesme

    IPC: G08B21/00 ,  G01K1/024 ,  G01N25/18 ,  G06K19/07 ,  G06K7/10

    Abstract: At least some aspects of the present disclosure feature a mobile sensing system comprising a sensing device for measuring a thermal property of an object, comprising an RF circuit and an antenna electronically coupled to the RF circuit, a sensor electronically coupled to the RF circuit, and a thermal source thermally coupled to the sensor and electronically coupled to the RF circuit, a mobile device having a processor, an RF reader connected to or integrated with the mobile device, wherein the RF reader is configured to interrogate the sensing device; wherein the sensing device receives power when the RF reader interrogates the sensing device and provides at least a portion of the power to the thermal source.

    Verifying structural integrity of materials
    69.
    发明授权
    Verifying structural integrity of materials 有权

    公开(公告)号：US11112374B2

    公开(公告)日：2021-09-07

    申请号：US16469900

    申请日：2017-12-15

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Christopher R. Yungers ,  Subhalakshmi M. Falknor ,  David H. Redinger ,  Ronald D. Jesme ,  Eric M. Chinnock

    IPC: G01N27/20

    Abstract: A method may include coupling a first electrical connector of an article to a second electrical connector of a measurement device. The article may include a tested material, the first electrical connector, and a plurality of electrical contacts electrically connected to the first electrical connector. The measurement device may include a power source and a user interface. The method also may include causing, by a controller, an electrical signal to be applied to a pair of drive electrical contacts from the plurality of electrical contacts. The method further may include receiving, by the controller, from an analog-to-digital converter, a measured voltage measured using a measurement electrical contact from the plurality of electrical contacts. The method also may include determining, by the controller, whether the tested material includes a crack or other defect based on the measured voltage.

    DEVICE WITH LIGHT CONTROL STRUCTURE HAVING MAGNETIZABLE PARTICLES
    70.
    发明申请
    DEVICE WITH LIGHT CONTROL STRUCTURE HAVING MAGNETIZABLE PARTICLES 有权

    公开(公告)号：US20210273126A1

    公开(公告)日：2021-09-02

    申请号：US17257878

    申请日：2019-07-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark B. O'Neill ,  Gary E. Gaides ,  Joseph B. Eckel ,  Aaron K. Nienaber ,  Ronald D. Jesme ,  Mark D. Weigel

    IPC: H01L31/054 ,  G02B5/00

    Abstract: According to one embodiment, a solar device, comprises one or more photovoltaic cells disposed in an encapsulant and a light control structure including a louver film having a series of louver structures, wherein each louver structure includes one or more groupings of a plurality magnetizable particles aligned at least in a first orientation dispersed in a binding matrix. The light control structure substantially transmits light incident at a first angle and substantially limits transmission of light incident at a second angle. Each louver structure is spaced apart from an adjacent louver structure, wherein each louver structure is substantially aligned in a plane substantially parallel to an adjacent louver structure.

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