Cart system for securing and transporting a portable tool

    公开(公告)号:US11001287B2

    公开(公告)日:2021-05-11

    申请号:US16743238

    申请日:2020-01-15

    Abstract: A cart system may include a mounting bracket removably attachable to a cart and configured to receive a portable tool. The mounting bracket can include retainers to engage a front portion of the portable tool, and a clamp assembly rotationally attached to the mounting bracket that can engage a rear portion of the portable tool when the clamp assembly is in a locked position, thereby securing the portable tool to the mounting bracket. A cart system may include a rotatable arm with a wheel on a first end and rotationally attached to a cart at a second end. A circular disk having a first pattern fixed to the arm and a moveable plate with a recess having a second pattern that mates with the first pattern, the plate being moveably attached to the cart. The disk can selectively engage the recess to selectively restrict rotation of the arm.

    Grinding wheel assembly
    22.
    发明授权

    公开(公告)号:US10898989B2

    公开(公告)日:2021-01-26

    申请号:US15940453

    申请日:2018-03-29

    Inventor: Jiashu Li

    Abstract: A grinding wheel assembly is disclosed and includes an arbor in which a pull stud may be installed. Further, the arbor can include a head assembly that includes a mounting plate, a cover plate, and an abrasive body disposed there between. The abrasive is removably engaged with the mounting plate and the cover plate.

    ABRASIVE PARTICLES HAVING PARTICULAR SHAPES AND METHODS OF FORMING SUCH PARTICLES

    公开(公告)号:US20200262031A1

    公开(公告)日:2020-08-20

    申请号:US16859336

    申请日:2020-04-27

    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.

    METHOD AND SYSTEM FOR OBTAINING AT LEAST ONE ACOUSTIC PARAMETER OF AN ENVIRONMENT

    公开(公告)号:US20190250028A1

    公开(公告)日:2019-08-15

    申请号:US15757797

    申请日:2016-08-30

    Abstract: At least one acoustic parameter of an environment is obtained by emitting a sound signal emitted, receiving a sound signal received, estimating a sampling frequency shift and of a temporal shift between the emission and reception devices on the basis of impulse responses obtained on the basis of portions of the sound signal received and of corresponding portions of the sound signal emitted, obtaining a corrected sound signal received by applying to the sound signal received a sampling frequency shift correction and a temporal shift correction on the basis of the estimating, determining the impulse response of the environment on the basis of portions of the corrected sound signal received and of corresponding portions of the sound signal emitted, and obtaining acoustic parameters of the environment on the basis of the impulse response.

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