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US 4,056,800 AGranted
Magnetic field aligning means
AssigneeRaytheon Company
InventorsNorman J. Dionne, Ernest C. Wettstein
Life of this patent
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Abstract
An axially aligned pair of spaced bucking coils energized to produce respective magnetic fields having cooperating radial components in an annular gap between the coils, and magnetic means for enhancing the radial components of the fields in the annular gap.
Claims10
Magnetic field producing apparatus including:
- a first pair of electromagnetic coils aligned with one another and axially spaced apart;
- a ring of saturable magnetic material axially disposed between the electromagnetic coils of the first pair;
- a cylinder of saturable magnetic material axially disposed within the ring and spaced therefrom by an annular gap;
- first electrical means connected to the first pair of electromagnetic coils for producing respective magnetic fields having flux lines directed radially in the gap;
- and
- unidirectional flux modifying means including electromagnetic coil means axially disposed within the ring and annularly spaced therefrom for altering the magnetic field in the gap.
3 more elements
Magnetic powder compressing and aligning apparatus including:
- an axially aligned pair of reciprocally movable rams having adjacent hollow end portions separated by an annular gap therebetween and made of nonmagnetic material;
- a first axially aligned pair of electromagnetic coils disposed in external coaxial relationship with the hollow end portions of the rams;
- a second axially aligned pair of electromagnetic coils disposed coaxially within the hollow end portions of the rams;
- and
- electrical means connected to the first and second pair of coils for producing respective magnetic fields having flux lines directed radially through the annular gap.
2 more elements
Dependencies are inferred from the claim text.