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    COATED ABRASIVE BELT AND METHODS OF MAKING AND USING THE SAME
    1.
    发明申请
    COATED ABRASIVE BELT AND METHODS OF MAKING AND USING THE SAME 审中-公开

    公开(公告)号：WO2020099969A1

    公开(公告)日：2020-05-22

    申请号：PCT/IB2019/059280

    申请日：2019-10-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ECKEL, Joseph B. ,  NIENABER, Aaron K. ,  SPRING, Erin D. ,  MOEGENBURG, Brant A. ,  MOORE, Eric M. ,  NELSON, Thomas J. ,  HANSCHEN, Thomas P. ,  KEIPERT, Steven J.

    IPC: B24D11/00 ,  B24D18/00 ,  C09K3/14 ,  B24D7/06

    Abstract: A coated abrasive belt includes an endless belt backing and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements secured to at least a portion of a major surface of the belt backing by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal and vertical lines of a rectangular grid pattern. At least 70 percent of the intersections have one of the abrasive elements disposed thereat. Each of the abrasive elements has at least two triangular abrasive platelets. Each one of the triangular abrasive platelets has respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of at least 90 percent of the triangular abrasive platelets is disposed facing and proximate to the belt backing. The abrasive elements are arranged such that the triangular abrasive platelets in orthogonally adjacent abrasive elements have a Z-axis rotational orientation within 10 degrees of perpendicular to each other. Methods of making and using the coated abrasive belt are also disclosed.

    SANDING SYSTEM WITH DAMPING FEATURE
    2.
    发明申请
    SANDING SYSTEM WITH DAMPING FEATURE 审中-公开

    公开(公告)号：WO2022130129A1

    公开(公告)日：2022-06-23

    申请号：PCT/IB2021/061470

    申请日：2021-12-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ECKEL, Joseph B. ,  KNUDSON, Orlin B. ,  SPRING, Erin D. ,  HERBST, Nathan J. ,  SANDERS, Rufus C.

    IPC: B24B23/03 ,  B24B41/00 ,  B24B27/00 ,  B24B49/12

    Abstract: A sanding system is presented that includes a tool with a motor which, when actuated, drives movement of a drive shaft. The system also includes a backup pad coupled to the drive shaft. The backup pad is configured to receive an abrasive article. Movement of the drive shaft causes movement of the abrasive article. The system also includes a compliant damping unit configured to provide variable compliance for the tool when the abrasive article contacting a worksurface. The system also includes an electronic controller that receives a system operating condition and sends a signal to the compliant damping unit based on the system operating condition.

    ACCESSORY ATTACHMENT FOR RANDOM-ORBITAL SANDER
    3.
    发明申请
    ACCESSORY ATTACHMENT FOR RANDOM-ORBITAL SANDER 审中-公开

    公开(公告)号：WO2020234704A1

    公开(公告)日：2020-11-26

    申请号：PCT/IB2020/054583

    申请日：2020-05-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SPRING, Erin D.

    IPC: B24B23/03 ,  B24B23/04 ,  B24D9/08 ,  B24B45/00 ,  F16F15/20 ,  F16F15/10

    Abstract: An assembly for attachment of an accessory to a random-orbital sander is disclosed comprising a drive spindle, a support plate, one or more drive members located on and protruding from either of both of the drive spindle and/or the support plate, and one or more drive sockets corresponding to the one or more drive members. The one or more drive sockets are located on either or both of the drive spindle and/or the support plate. An attachment member adapted to protrude through an attachment aperture to fix the support plate and drive spindle against axial movement. One or more of the drive members seats within a corresponding drive socket to fix the drive spindle and support plate against relative rotational movement. One or more tuning members are positioned between the drive spindle and the support plate to space the support plate from the drive spindle a predetermined distance. A method of assembling a corresponding accessory to a random orbital sander and a method of balancing vibration in a random orbital sander by means of one or more tuning members are also disclosed.

    COATED ABRASIVE BELT AND METHODS OF MAKING AND USING THE SAME
    4.
    发明申请
    COATED ABRASIVE BELT AND METHODS OF MAKING AND USING THE SAME 审中-公开

    公开(公告)号：WO2020100084A1

    公开(公告)日：2020-05-22

    申请号：PCT/IB2019/059796

    申请日：2019-11-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ECKEL, Joseph B. ,  NIENABER, Aaron K. ,  SPRING, Erin D. ,  MOEGENBURG, Brant A. ,  MOORE, Eric M. ,  NELSON, Thomas J. ,  HANSCHEN, Thomas P. ,  KEIPERT, Steven J.

    IPC: B24D11/00

    Abstract: A coated abrasive belt (100) includes a belt backing (110) and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements (160) secured to at least a portion of a major surface of the belt backing (110) by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal (192) and vertical lines (194) of a rectangular grid pattern. Each abrasive element has at least two triangular abrasive platelets (130), each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the belt backing. A first portion of the abrasive elements is arranged in alternating first rows (16) wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines (194). A second portion of the abrasive elements is arranged in alternating second rows (168) wherein the triangular abrasive platelets (130) are disposed lengthwise aligned with the horizontal lines (194). The first and second rows repeatedly alternate along the vertical lines. Methods of making and using the coated abrasive belt are also disclosed.

    REPOSITIONABLE ABRASIVE DISC MOUNTING ASSEMBLY AND METHOD OF USING THE SAME
    6.
    发明申请
    REPOSITIONABLE ABRASIVE DISC MOUNTING ASSEMBLY AND METHOD OF USING THE SAME 审中-公开

    公开(公告)号：WO2022013670A1

    公开(公告)日：2022-01-20

    申请号：PCT/IB2021/055925

    申请日：2021-07-01

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ECKEL, Joseph B. ,  SPRING, Erin D. ,  NELSON, Thomas J. ,  SALMON, Fay T. ,  TRIANA, Dominic J. ,  O'HARE, Jonathan J. ,  CORRIGAN, Thomas R.J. ,  BUCKLEY, David T. ,  ARTHUR, Cory M. ,  GHADERI, Alireza

    IPC: B24D9/08

    Abstract: A method for repositioning an abrasive disc within a repositionable abrasive disc mounting assembly is presented. The method includes mounting the abrasive disc to a repositionable abrasive disc mounting assembly in a first position. The mounting disc assembly includes the abrasive disc coupled to the back-up pad assembly such that the abrasive disc is in contact with a pressure feature of the back-up pad assembly, a drive shaft of a grinding tool, and a fastener that maintains the position of the abrasive disc and the back-up pad coupled to the drive shaft. The method also includes conducting an abrasive operation by activating the grinding tool. The method also includes re-positioning the abrasive disc, with respect to the repositionable abrasive disc mounting assembly, in a second position. The first position includes the abrasive disc in a first position relative to the pressure feature. The second position includes the abrasive disc in a second position relative to the pressure feature assembly. Re-positioning includes an adjustment between the first and second position while the abrasive disc is still positioned on the drive shaft between the fastener and the back-up pad assembly.

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