发明名称 |
MAGNETIC DEVICE FOR CONTROLLING DOOR MOVEMENT AND METHOD THEREOF |
摘要 |
An exemplary locking or coupling device includes a plurality of magnets each having a direction of magnetization. A plurality of pole shoe members are positioned between selected ones of the magnets. A moveable support supports some of the magnets and some of the pole shoe members. The moveable support is moveable to selectively change a relative orientation of the directions of magnetization. One relative orientation primarily directs a flow of magnetic flux between the magnets through the pole shoe members and the magnetic flux remains essentially in a plane containing the magnets and the pole shoe members. A second, different relative orientation primarily directs the flow of magnetic flux from the pole shoe members in a transverse direction away from the plane. |
申请公布号 |
US2012205505(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
US200913503472 |
申请日期 |
2009.12.18 |
申请人 |
PIECH ZBIGNIEW;HU GUOHONG |
发明人 |
PIECH ZBIGNIEW;HU GUOHONG |
分类号 |
B66B13/30;B23P11/00;E05C19/16;H01F7/02 |
主分类号 |
B66B13/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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