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公开(公告)号：US20230088568A1
公开(公告)日：2023-03-23
申请号：US17922680
申请日：2021-05-18
摘要： A screw including a shank, at least one screw thread, which is arranged on the shank, winds around the shank and protrudes from the shank, and a separate helix element, which is arranged non-monolithically on the shank, wherein the separate helix element winds around the shank, protrudes from the shank, and constitutes at least a section of the at least one screw thread. The screw further includes at least one first claw, which projects from the shank, and which has both radial and axial overlap with the separate helix element, wherein the shank and the at least one first claw are monolithic with respect to one another.
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公开(公告)号：US20210187631A1
公开(公告)日：2021-06-24
申请号：US16954088
申请日：2018-12-17
发明人： Florian SCHROEDER , Guenter DOMANI , Pingyan RONG
IPC分类号： B23B51/04
摘要： A cutting section (11) which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first closed tubular element (14) which is in the form of a first hollow cylinder having a first waved, trapezoidal or zigzag-shaped cross-sectional area, a second closed tubular element (15) which is in the form of a second hollow cylinder having a circular ring-shaped cross-sectional area, and one or more drill segments (16) which are connected to the first closed tubular element (14) and to the second closed tubular element (15).
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公开(公告)号：US20210078085A1
公开(公告)日：2021-03-18
申请号：US16954428
申请日：2018-12-17
发明人： Florian SCHROEDER , Guenter DOMANI , Pingyan RONG
IPC分类号： B23B51/04
摘要： A cutting section (11) which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first closed tubular element (14) which is in the form of a first hollow cylinder, a second closed tubular element (15) which is in the form of a second hollow cylinder, and one or more drill segments (16) which are connected to the first closed tubular element (14) and to the second closed tubular element (15).
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公开(公告)号：US20210078084A1
公开(公告)日：2021-03-18
申请号：US16954041
申请日：2018-12-17
发明人： Florian SCHROEDER , Guenter DOMANI , Pingyan RONG
IPC分类号： B23B51/04
摘要： A cutting section (11) which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first closed tubular element (14) which is in the form of a first hollow cylinder having a first waved, trapezoidal or zigzag-shaped cross-sectional area, a second closed tubular element (15) which is in the form of a second hollow cylinder having a circular ring-shaped cross-sectional area, and one or more drill segments (16) which are connected to the first closed tubular element (14).
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公开(公告)号：US20210107070A1
公开(公告)日：2021-04-15
申请号：US16954397
申请日：2018-12-11
发明人： Florian SCHROEDER , Guenter DOMANI , Pingyan RONG
IPC分类号： B23B51/04
摘要： A cutting section (11) which is connectable to a drill shaft section via a releasable connecting device. The cutting section includes a first open tubular element (14) which is in the form of a first hollow cylinder having a first waved, trapezoidal or zigzag-shaped cross-sectional area, a second closed tubular element (15) which is in the form of a second hollow cylinder having a circular ring-shaped cross-sectional area, and one or more drill segments (16) which are connected to the first open tubular element (14) and to the second closed tubular element (15).
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公开(公告)号：US20210078119A1
公开(公告)日：2021-03-18
申请号：US16954463
申请日：2018-12-13
发明人： Florian SCHROEDER , Guenter DOMANI , Pingyan RONG
摘要： A method for producing a cutting section from a closed tubular element (14) which is in the form of a hollow cylinder and from one or more drill segments (16) which are connected to the closed tubular element (14).
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7.发明申请公开(公告)号：US20190040894A1
公开(公告)日：2019-02-07
申请号：US16076609
申请日：2017-02-21
发明人： Guenter DOMANI , Hideki SHIMAHARA , Karl Haeussler
摘要： A method for manufacturing an expansion anchor is provided, in which a bolt is provided, which includes an expansion body for expanding an expansion sleeve surrounding the bolt, an annular sleeve blank having an opening is provided, the bolt is introduced into the opening of the annular sleeve blank, and the annular sleeve blank is reduced in diameter while the bolt is located in the opening of the annular sleeve blank. The invention also relates to expansion anchors, which may be obtained with the aid of the method according to the invention, in particular bolt-type anchors having closed annular expansion sleeves and, in particular, anchors having expansion sleeves with protruding noses, which are each situated on a closing fold of the expansion sleeve.
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公开(公告)号：US20190015892A1
公开(公告)日：2019-01-17
申请号：US16062537
申请日：2016-12-06
摘要： A method for producing a drill includes cold forming of a rod-shaped blank to form a semifinished product having three or more rectilinear longitudinal ribs extending along a longitudinal axis of the semifinished product, introducing the longitudinal ribs into a first die and a second die in a working direction, where the first die bears against the longitudinal ribs in a direction of rotation about the longitudinal axis and the second die bears against the longitudinal ribs counter to the direction of rotation, pivoting the first die in the direction of rotation in relation to the second die in order to twist the longitudinal ribs between the first and second dies, pulling the longitudinal ribs 31 through the pivoted first die and the second die counter to the working direction in order to twist the longitudinal ribs and apply a drill head to the rear end in the working direction.
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公开(公告)号：US20230166323A1
公开(公告)日：2023-06-01
申请号：US17922667
申请日：2021-05-18
摘要： Method for manufacturing a profiled rod from a rod-shaped metal blank including a first deformation step, in which the blank is embedded in a first die arrangement, and subsequently, the blank is axially compressed so as to radially displace blank material within the first die arrangement to form a first surface protrusion structure on the blank, and following the first deformation step, a second deformation step, in which the blank is embedded in a second die arrangement, and subsequently, the blank is axially compressed so as to radially displace blank material within the second die arrangement to form a second surface protrusion structure on the blank, wherein at least a section of the second surface protrusion structure is closer to the first end than the first surface protrusion structure is.
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公开(公告)号：US20210154728A1
公开(公告)日：2021-05-27
申请号：US17166932
申请日：2021-02-03
摘要： A drill bit includes a drill bit head, a multi-strand helix made up of three or more helix ribs, and a shank end along a drill bit axis. The multi-strand helix is made up of a conveyance area, a helix gradient, and a pitch. The helix ribs extend parallel to the drill bit axis in a first area adjacent to the drill bit head and a second area adjacent to the shank end.
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