Spark-gap device, particularly high-voltage spark-gap device

Details Spark-gap device, particularly high-voltage spark-gap device Spark-gap device, particularly high-voltage spark-gap device

2004-05-14

2008-12-09

Sherry, Michael J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

C361S120000, C361S117000

Reexamination Certificate

active

07463471

ABSTRACT:
Spark-gap device including two discharge electrodes (2; 3) each having an elongated conductor portion (10; 5), called the active portion, with a connecting longitudinal end (11; 7) fixed to a connector. The electrodes are arranged in such a way that, when an electric arc is generated, the arc is formed between the active portions and the resulting electric current induces a magnetic field moving the electric arc along the active portions, preferably at an erosion-limiting high speed. At least a discharge electrode further includes at least a second conductor portion (9, 16; 6), called the passive portion, electrically connected to the connector and/or the active portion and with a form adapted to prevent a spontaneous electric arc from being inopportunely generated in normal usage conditions of the device.

REFERENCES:
patent: 2716198 (1955-08-01), McCallum
patent: 3230410 (1966-01-01), Hueschen et al.
patent: 3408525 (1968-10-01), Bahr
patent: 3450922 (1969-06-01), Gallahger
patent: 3524099 (1970-08-01), Stetson
patent: 3686532 (1972-08-01), Rudolph et al.
patent: 4267481 (1981-05-01), Sauder
patent: 4485334 (1984-11-01), de Witte
patent: 6392862 (2002-05-01), Kracht et al.
patent: 620 475 (1949-03-01), None

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