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US 4,065,692 AGranted
Spark gap assembly for voltage surge arresters
AssigneeWestinghouse Electric Corp.
InventorJoseph C. Osterhout
Life of this patent
Estimating the term…
Abstract
A spark gap assembly of a stack of insulating plates which have on one surface thereof a pair of electrodes preassembled and affixed thereto with a defined spark gap therebetween and a piece of ionizing material disposed on and affixed to each of the plates between the pair of electrodes. The plates are stacked with mating surfaces joined together and with a center plate bearing no electrodes that is joined with mating surfaces of each of two symmetrical groups of electrode bearing plates, and an electromagnetic coil is disposed around the periphery of the center plate.
Claims4
A spark gap assembly comprising:
- a stack of insulating plates, first, second and third plates of said stack having opposing first and second surfaces with said first surface having a raised portion and said second surface having a recess, said raised portion of said first surface of said first plate located within said recess of said second surface of said second plate, said raised portion of said first surface of said second plate located within said recess of said second surface of said third plate;
- a pair of electrodes disposed on and affixed to individual ones of said stack of plates on a single one of said surfaces thereof and defining a spark gap between said pair of electrodes;
- said pair of electrodes having a piece of ionizing material disposed therebetween, said piece of ionizing material being affixed within a recess of said surface to which said electrodes are affixed, said pair of electrodes having a first pair of opposing points contacting said preionizer and a second pair of opposing portions that face each other at a location removed from said preionizer, said second pair of portions being spaced a predetermined distance defining a spark gap between said electrodes.
Dependencies are inferred from the claim text.