Method of making a transformer coil assembly

Details Method of making a transformer coil assembly Method of making a transformer coil assembly

1975-06-02

1976-05-25

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29416, 29418, 24211841, 336198, 336208, H01F 4106

Patent

active

039583287

ABSTRACT:
A method for making a coil assembly of the telescoping bobbin type wherein axially spaced coils are wound on an elongate tubular form comprising two spool-like bobbin sections integrally joined to each other in end-to-end relation by thin rupturable webs. The core of one bobbin section has an opening therethrough sized to receive the flanges of the other bobbin section. After winding of the coils is completed, the bobbin sections are axially pressed toward each other to rupture the rupturable webs and telescope one bobbin section into an opening of the other.

REFERENCES:
patent: 3594898 (1971-07-01), Lewandowski
patent: 3652968 (1972-03-01), Johnston et al.

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