Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1994-07-08
1995-06-20
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
335213, 31536826, 313421, H01F 700, H01H 100, G09G 104, H01J 2970
Patent
active
054264073
ABSTRACT:
A deflection unit comprising a set of preformed diametrical deflection coils. A hollow coil support of synethic material includes at least two lugs into which respective permanent deformations are impressed. The coils are mechanically anchored to the lugs by means of, for example, an ultrasonic welding process in which the locations of the coil support situated opposite supported locations of the coils are softened and pressed into the coils. The coils substantially free of the coil support, i.e., the larger part of each coil is free of the coil support, and are not deformed so that their mutual position is accurately maintained.
REFERENCES:
patent: 1739246 (1929-12-01), Majce
patent: 3541682 (1970-11-01), Hildebrandt
patent: 4547238 (1985-10-01), Lenders
patent: 4553120 (1985-11-01), Dam
patent: 4691746 (1987-09-01), Sedgewick
Dekkers Bernardus H. J.
Jamar Jacobus H. T.
Van Den Berg Hendrik D.
Kraus Robert J.
Picard Leo P.
Ryan Stephen T.
U.S. Philips Corporation
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