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    VARIABLE HOOD APPARATUS
    1.
    发明申请
    VARIABLE HOOD APPARATUS 有权

    公开(公告)号：US20220290880A1

    公开(公告)日：2022-09-15

    申请号：US17586830

    申请日：2022-01-28

    申请人： Andong National University Industry-Academic Cooperation Foundation

    发明人： Hee Keun Cho

    IPC分类号： F24F7/06 ,  F24C15/20

    摘要： Proposed is a variable hood apparatus. The variable hood apparatus includes a support holder fixed to a wall, a rotation holder configured to be rotatable around a vertical axis of rotation while being supported by the support holder, an arm portion supported by the rotation holder and configured to be capable of performing a three-dimensional movement, a foldable hood mounted on an end portion of the arm portion, the foldable hood being configured to be unfolded while being used and to be folded while being not used, an exhaust pipe which is connected to the foldable hood and which extends to an outside, and an exhaust mechanism configured to generate an airflow which is formed inside the exhaust pipe and which is in a direction toward the outside, thereby inducing a negative pressure in the foldable hood.

    Wire rod rolling roller and gap adjustment device thereof
    2.
    发明授权
    Wire rod rolling roller and gap adjustment device thereof 有权

    公开(公告)号：US11260438B2

    公开(公告)日：2022-03-01

    申请号：US16796647

    申请日：2020-02-20

    申请人： ANDONG NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

    发明人： Hee Keun Cho

    IPC分类号： B21B1/16

    摘要： A wire rod rolling roller is disclosed. In one aspect, the wire rod rolling roller includes upper and lower rollers spaced apart from each other and configured to roll a wire rod passing therebetween and upper and lower drive shafts fixedly extending through the centers of the upper and lower rollers, respectively, and configured to rotate the upper and lower rollers. The wire rod rolling roller also includes upper and lower bearing housings respectively disposed on one side of the upper drive shaft and one side of the lower drive shaft, and configured to support the upper and lower drive shafts. The wire rod rolling roller further includes a journal bearing inserted into the upper and lower bearing housings and in surface contact with the upper and lower drive shafts to minimize fiction and a gap adjustment device configured to adjust a gap between the upper and lower rollers.