Overload protection tube

Details Overload protection tube Overload protection tube

1976-06-21

1977-12-13

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Miscellaneous discharge devices

313151, 313214, 361120, 3132311, H01J 1700, H01J 2100

Patent

active

040631273

ABSTRACT:
A reliable overload protection tube utilizes a meltable sealing material to mount an electrode within a metallic enclosure. The interelectrode gap between the tube electrodes is adjusted to determine the desired tube breakdown voltage. Voltage in excess of breakdown ionizes the tube and conducts the overload current safely to ground. The sealing material upon excess overload current becomes heated and melted allowing the electrodes to move into a short circuit contact to ground.

REFERENCES:
patent: 1696157 (1928-12-01), Flarsheim
patent: 2481298 (1949-09-01), Eldridge, Jr.
patent: 2990492 (1961-06-01), Wellinger et al.
patent: 3289027 (1966-11-01), Jones
patent: 3324335 (1967-06-01), Simko
patent: 3896343 (1975-07-01), Baker et al.

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