Method for forming a free wound electromagnetic deflection yoke

Details Method for forming a free wound electromagnetic deflection yoke Method for forming a free wound electromagnetic deflection yoke

Filed on

1996-09-18

Date issued

1999-07-27

Examiner

Hall, Carl E.

Patent Class

Metal working

SubClass

Method of mechanical manufacture

SubSubClass

Electrical device making

Other Related Categories

335210, 335213, 336 84C, H01F 4106

Type

Patent

Status

active

Patent number

059269456

Description

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.

REFERENCES:
patent: 1741220 (1929-12-01), Bolis
patent: 2388598 (1945-11-01), Cahill
patent: 4251728 (1981-02-01), Pfeiffer et al.
patent: 4629899 (1986-12-01), Plies
patent: 4904975 (1990-02-01), Mendenbach
patent: 5221844 (1993-06-01), van der Mast et al.
patent: 5264706 (1993-11-01), Oae et al.

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