Method for surface treatment of electrode in distributor of inte

Details Method for surface treatment of electrode in distributor of inte Method for surface treatment of electrode in distributor of inte

1977-12-19

1979-11-20

Esposito, Michael F.

Coating processes

Electrical product produced

Metallic compound coating

427101, 427103, 427372A, 427419B, 427427, 200267, 200268, 200 19R, 200 19DR, B05D 512, H01H 102, H01H 1900

Patent

active

041751442

ABSTRACT:
An electrode for a spark discharge in a distributor is surface treated by using a spray coating process so as to provide the electrode with a surface layer of an electrically high resistive material, e.g. CuO, which surface layer further includes a predetermined percentage of refractory and electrical insulating material, e.g. Al.sub.2 O.sub.3, SiO.sub.2 or MgO.multidot.Al.sub.2 O.sub.3. A distributor having one such treated electrode for the distributor rotor and/or such treated electrodes for stationary terminals can exhibit stably-suppressed noise for over a long period of time.

REFERENCES:
patent: 3992230 (1976-11-01), Komiyama et al.
patent: 4007342 (1977-02-01), Makino et al.
patent: 4039787 (1977-08-01), Hori et al.
patent: 4074090 (1978-02-01), Hayashi et al.
patent: 4077378 (1978-03-01), Okumura

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