Metal working – Method of mechanical manufacture – Electrical device making
Patent
1975-04-15
1977-01-25
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29418, 295276, 29607, 164 69, 164108, 164114, 228169, 335262, H02K 1502, H01F 4102
Patent
active
040043436
ABSTRACT:
A method of forming the core tube of an electro-magnetic solenoid comprises forming and positioning the end portions of the core tube and centrifugally casting the non-magnetic intermediate portion of the core tube.
REFERENCES:
patent: 2207150 (1940-07-01), Hirsch et al.
patent: 2860403 (1958-11-01), Meyer
patent: 3022450 (1962-02-01), Chase, Jr.
patent: 3166692 (1965-01-01), Forrester et al.
Expert Industrial Controls Limited
Hall Carl E.
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