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US 5,631,615 AGranted
Free wound electromagnetic deflection yoke
AssigneeInternational Business Machines Corporation
InventorsScott A. Messick, Joseph J. Senesi
Life of this patent
Estimating the term…
Abstract
A free-wound electromagnetic yoke is formed by winding the X-axis with a continuous piece of heat bondable wire wound around a plurality of coil forms positioned on a mandrel and turned by a lathe. After winding, the mandrel is heated to cause the windings to form solid coils. After cooling, the solid coils are removed from the mandrel and from the coil forms. The same process is repeated for the Y-axis. The solid coils for both the X-axis and the Y-axis are placed in a toroidal support ring to form an electromagnetic yoke.
Claims5
A free wound electromagnetic yoke, comprising:
- an X-axis formed of a first continuous length of wire forming a first plurality of coils, each of said first plurality of coils formed to be an individual solid mass;
- a Y-axis formed of a second continuous length of wire forming a second plurality of coils, each of said second plurality of coils being formed to be an individual solid mass;
- support means for holding said X-axis and said Y-axis in a toroidal formation.
Dependencies are inferred from the claim text.