Method and means for coupling an elongated magnetic device

A coupling means for conducting and subjecting an elongated magnetic device to magnetic flux comprising a flux conductive means providing a pair of end portions of respective first and second members of high permeability and low coercivity each having a region for engaging a respective end of an elongated magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, and means positioning and spacing said members.

In combination, an elongated magnetic device, and a coupling means for subjecting said magnetic device to magnetic flux comprising a flux conductive means having a high permeability and low coercivity providing a pair of spaced end portions of first and second members each having a region connected with a respective end of said magnetic device to provide a magnetic path through said conductive means and magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, and means positioning and spacing said members.

A method for coupling an elongated magnetic device to a magnetic circuit comprising the steps of

• shaping by compressing the ends of an elongated magnetic device to provide a high ratio of surface area to volume and to form flat surfaces on opposite sides including a contact surface, and
• connecting the contact surface of each end of said magnetic device to a conforming portion of a respective one of a pair of spaced ends of first and second members of a flux conductive means made of material providing high permeability and low coercivity to provide a magnetic path through said conductive means and magnetic device,
• the members of the conductive means being formed to provide tapered portions extending toward each other having a region of reduced thickness and a flat contacting area to which the ends of said magnetic device are respectively connected, and the flat contacting areas of said members being coplanar.

A method for coupling an elongated magnetic device to a magnetic circuit comprising the steps of

• shaping by compressing the ends of an elongated magnetic device to provide a high ratio of surface area to volume and to form flat surfaces on opposite sides including a contact surface,
• connecting the contact surface of each end of said magnetic device to a conforming portion of a respective one of a pair of spaced ends of first and second members of a flux conductive means to provide a magnetic path through said conductive means and magnetic device, the members being formed to provide tapered portions extending toward each other having a region of reduced thickness and a flat contacting area to which the ends of said magnetic device are respectively connected, and
• positioning and spacing said members with respect to each other and securing them with a supporting means prior to the step of connecting said magnetic device to said flux conductive means.

A method for coupling an elongated magnetic device to a magnetic circuit comprising the steps of

• shaping the ends of an elongated magnetic device to provide a high ratio of surface area to volume and a contact surface at each end,
• connecting by soldering the contact surface of each end of said magnetic device to a conforming portion of a respective one of a pair of spaced ends of a flux conductive means to provide a magnetic path through said conductive means and magnetic device, and
• cooling the portion of said magnetic device intermediate its ends during the connecting step.

A coupling means for conducting and subjecting an elongated magnetic device to magnetic flux comprising a flux conductive means including first and second members with respective tapered end portions of reduced thickness extending toward each other and each having a region with a flat area for engaging a respective end of an elongated magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, said flat areas of said first and second members being coplanar, and said members having a high permeability and low coercivity and being provided with joining means for being secured with means for receiving magnetic flux from a magnetic source.

A coupling means for conducting and subjecting an elongated magnetic device to magnetic flux comprising a flux conductive means including first and second members with respective tapered end portions of reduced thickness extending toward each other and each having a region with a flat area for engaging a respective end of an elongated magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, said members having a high permeability and low coercivity, and positioning and spacing means supporting said members.

A coupling means for coupling and subjecting an elongated magnetic device to magnetic flux comprising a flux conductive means providing a pair of end portions each having a region for engaging a respective end of an elongated magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, said flux conductive means including a third member extending between said pair of members and providing a path for magnetic flux shunting the path provided by said magnetic device.

In combination, an elongated magnetic device comprising a bistable magnetic wire, and a coupling means for subjecting said magnetic device to magnetic flux comprising a flux conductive means including first and second members with respective tapered end portions of reduced thickness extending toward each other and each having a region with a flat area connected with a respective end of said magnetic device to provide a magnetic path through said conductive means and magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, the ends of said magnetic device providing a high ratio of surface area to volume and a flat contact surface, the flat areas of said first and second members being coplanar and said members having a high permeability and low coercivity.

In combination, an elongated magnetic device, a coupling means for subjecting said magnetic device to magnetic flux comprising a flux conductive means including first and second members with respective tapered end portions of reduced thickness extending toward each other and each having a region with a flat area connected with a respective end of said magnetic device to provide a magnetic path through said conductive means and magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, the ends of said magnetic device providing a high ratio of surface area to volume and a flat contact surface, said members having a high permeability and low coercivity, and positioning and spacing means supporting said members.

In combination, an elongated magnetic device, a coupling means for subjecting said magnetic device to magnetic flux comprising a flux conductive means including first and second members with respective tapered end portions of reduced thickness extending toward each other and each having a region with a flat area connected with a respective end of said magnetic device to provide a magnetic path through said conductive means and magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, the ends of said magnetic device providing a high ratio of surface area to volume and a flat contact surface, said members having a high permeability and low coercivity, and a third member extending between said first and third members and providing a path for magnetic flux shunting the path provided by said magnetic device.

In combination, an elongated magnetic device, and a coupling means for subjecting said magnetic device to magnetic flux comprising a flux conductive means providing a pair of spaced end portions each having a region connected with a respective end of said magnetic device to provide a magnetic path through said conductive means and magnetic device, the end portions of said flux conductive means being positioned with respect to each other to space its regions to correspond to the spacing between the ends of said device, said flux conductive means including a third member extending between said pair of members and providing a path for magnetic flux shunting the path provided by said magnetic device.