Electrode in an electric gathering apparatus

Details Electrode in an electric gathering apparatus Electrode in an electric gathering apparatus

1995-12-05

1997-11-11

Fleming, Fritz

Electricity: electrical systems and devices

Electric charging of objects or materials

B21J 908, H05B 656

Patent

active

056870531

ABSTRACT:
In a conductive plate of an upper electrode of an electric gathering apparatus for manufacturing a poppet valve used in an internal combustion engine, there is formed a polygonal bore in which a drive shaft is engaged. An annular cut-away portion which is larger than the engagement bore in diameter is formed, thereby preventing a burr and increasing durability of the electrode.

REFERENCES:
patent: 3793873 (1974-02-01), Iwata et al.
patent: 4263799 (1981-04-01), Motizuki
patent: 5054301 (1991-10-01), Soga et al.

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