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Browse Prior Art Database

Magnet with Shunt Release

IP.com Disclosure Number: IPCOM000091683D
Original Publication Date: 1968-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Tashjian, HJ: AUTHOR [+2]

Abstract

With hold coil 10 energized and release and shunt coils 11 and 12 deenergized, the flux produced by coil 10 passes through armature 13 to hold it against pole face 14 in opposition to spring 15, drawing A. To release armature 13, coils 11 and 12 are energized. Energization of coil 12 attracts flux produced by coil 10 and causes it to bypass armature 13 as in drawing B. The flux produced by release coil 11 also diverts the coil 10 flux away from armature 13. However, the energy requirements of coil 11 are greatly reduced by shunt coil 12. This enables armature 13 to be released more rapidly. Also, to prevent hold coil energy loss in the shunt path, coil 12 can be continuously energized with polarity opposite the coil 10 polarity until release of 13 is desired.

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Magnet with Shunt Release

With hold coil 10 energized and release and shunt coils 11 and 12 deenergized, the flux produced by coil 10 passes through armature 13 to hold it against pole face 14 in opposition to spring 15, drawing A. To release armature 13, coils 11 and 12 are energized. Energization of coil 12 attracts flux produced by coil 10 and causes it to bypass armature 13 as in drawing B. The flux produced by release coil 11 also diverts the coil 10 flux away from armature 13. However, the energy requirements of coil 11 are greatly reduced by shunt coil
12. This enables armature 13 to be released more rapidly. Also, to prevent hold coil energy loss in the shunt path, coil 12 can be continuously energized with polarity opposite the coil 10 polarity until release of 13 is desired.

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