Method of making an inductive stabilizing ballast for a gas and/

Details Method of making an inductive stabilizing ballast for a gas and/ Method of making an inductive stabilizing ballast for a gas and/

1975-01-21

1976-04-06

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29609, 336 61, 336 83, 336234, H01F 4102

Patent

active

039479552

ABSTRACT:
The invention relates to a method of manufacturing an inductive stabilizing ballast for a gas and/or vapour discharge lamp.
According to the invention, after placing the laminations in and about the coil, part of each lamination is turned about an axis which is parallel to the centre line of the electric coil so that the lamination parts are tightly turned against the electric coil. This leads to a satisfactory thermal contact between the coil and the casing so that the removal of heat from the coil is enhanced.

REFERENCES:
patent: 2584564 (1952-02-01), Ellis
patent: 2764802 (1956-10-01), Feiertag
patent: 3080641 (1963-03-01), Marley
patent: 3309641 (1967-03-01), Burkhardt et al.
patent: 3500273 (1970-03-01), Hoell

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