Coil body made of synthetic material, an injection mold and meth

Details Coil body made of synthetic material, an injection mold and meth Coil body made of synthetic material, an injection mold and meth

1994-09-23

1997-06-10

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Contact composition or structure

336198, H01H 100

Patent

active

056380399

ABSTRACT:
A coil body with an upper section and at least one lower section which has a downward cone shape. The coil body is manufactured from a thermosetting plastic by an injection molding process such that the lower section is provided along its full length with a thin molded tab. Furthermore, an injection mold for forming of the coil body is provided. The lower section of the mold is equipped with at least one blind cavity which is connected to the mold cavity via a gap running the entire height of the mold cavity.

REFERENCES:
patent: 4135297 (1979-01-01), Guttenberger et al.
patent: 5420559 (1995-05-01), Ohshiba et al.
Von Werner Laeis, Koeln/Troisdorf, "Das Spritzgussverfahren in der Revision*", Kunststoffe, (1961), pp. 97-103.

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