公开(公告)号：US20210210296A1

公开(公告)日：2021-07-08

申请号：US17130868

申请日：2020-12-22

Applicant: Magswitch Technology Worldwide Pty Ltd.

Inventor： David H. Morton ,  Cengiz Kizilkan ,  Paul J. Karp

IPC: H01H36/00 ,  H01F7/02 ,  H01F7/04

Abstract: Magnetic coupling devices are disclosed which may be configured in at least three states. The various states may be provided through one or more of altering a position of a permanent magnet relative to another permanent magnet and altering a current level in a coil surrounding a permanent magnet.

公开(公告)号：US11031166B2

公开(公告)日：2021-06-08

申请号：US16618690

申请日：2018-06-08

Applicant: Magswitch Technology Worldwide PTY LTD

Inventor： David H. Morton ,  Thomas R. Whitt ,  Michael H. Reed ,  Michael C. Blanchard

IPC: H01F7/20 ,  H01F7/02 ,  H01F7/04 ,  H01F7/17

Abstract: A switchable permanent magnetic unit is disclosed. The unit comprises: a housing, first and second permanent magnets, and a conductive coil. The first magnet is mounted within the housing and the second magnet is rotatable between first and second positions and mounted within the housing in a stacked relationship with the first magnet. The unit generates a first level of magnetic flux at a workpiece contact interface when the second magnet is in the first position and a second level of magnetic flux at the interface when the second magnet is in the second position, the second level being greater than the first level. The conductive coil is arranged about the second magnet and generates a magnetic field. A component of the conductive coil's magnetic field is directed from S to N along the second magnet's N-S pole pair when the second magnet is in the first position.

公开(公告)号：US20210154881A1

公开(公告)日：2021-05-27

申请号：US17102580

申请日：2020-11-24

Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD

Inventor： Andrew Klein ,  David Long

IPC: B27C5/06 ,  B27B25/10 ,  B23D47/04

Abstract: The present invention relates to improvements in a magnetic featherboard, the featherboard having an elongate main body with opposite lateral faces, a bottom face and front and rear faces; a plurality of resiliently deformable feathers arranged at one or both lateral faces of the main body, and at least two, on-off switchable permanent magnets respectively received in one of at least two spaced apart recesses of the main body such that a working face of the respective switchable permanent magnet is present at the bottom face of the main body. One improvement comprises (i) providing a resiliently deformable friction gasket adjacent the working face of each of the switchable permanent magnets and protruding, in an non-deformed state, a predetermined amount from the bottom face of the main body and the working faces, the gaskets deformable through magnetic clamping of the featherboard to a table. The other improvement resides in providing at least two adjustable stops at one or both of the front and the rear face of the main body, each said stop comprising an abutment piece displaceable in longitudinal direction relative to the front/rear face, wherein a distance of each of the abutment pieces from the front/rear face is settable independently of each other, the stops operational to provide at least two abutments against which stock material to be machined can be placed when the featherboard is magnetically secured to the table.

公开(公告)号：US10903030B2

公开(公告)日：2021-01-26

申请号：US15965582

申请日：2018-04-27

Applicant: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD.

Inventor： David H. Morton ,  Cengiz Kizilkan ,  Paul J. Karp

IPC: H01H36/00 ,  H01F7/02 ,  H01F7/04

Abstract: Magnetic coupling devices are disclosed which may be configured in at least three states. The various states may be provided through one or more of altering a position of a permanent magnet relative to another permanent magnet and altering a current level in a coil surrounding a permanent magnet.

公开(公告)号：US20120200380A1

公开(公告)日：2012-08-09

申请号：US13444757

申请日：2012-04-11

Applicant: Franz KOCIJAN

Inventor： Franz KOCIJAN

IPC: H01F7/02

CPC classification number: B60L13/04 ,  B60L2200/26 ,  B66C1/04 ,  B66C1/06 ,  B66C1/08 ,  B66C7/02

Abstract: Magnetic circuit that has (a) a source of magnetic flux which includes an electromagnet or one or more permanent magnets, (b) at least two oppositely polarisable pole extension bodies associated with the magnetic flux source, the bodies being disc, wheel, roller or similarly shaped with an outer circumferential surface and held rotatable about respective axes of rotation, and (c) a ferromagnetic counter body which is arranged to cooperate with the pole extension bodies such as to provide an external flux path for the magnetic flux when in magnetic proximity or contact with the circumferential surface of the pole extension bodies, which is characterised in that the magnetic flux source is held stationary relative to the rotatable pole extension bodies.

Abstract translation: 具有（a）包括电磁体或一个或多个永磁体的磁通源的磁路，（b）与磁通源相关联的至少两个相对极化的极扩展体，所述主体是盘，轮，辊或 类似地形成有外圆周表面并且可围绕各自的旋转轴线保持旋转，以及（c）铁磁计数器主体，其布置成与极延伸体协作，以便在磁接近时为磁通量提供外部磁通路径 或与极延伸体的圆周表面接触，其特征在于，磁通源相对于可旋转的杆延伸体保持静止。