Surge arrestor

Claim 2

A surge arrestor comprising, a flat substrate material having a top surface and opposite ends, said substrate material having a spark gap notch formed in its top surface, a first electrode on said top surface extending from one side of said notch towards one end of said substrate material, a second electrode on said top surface extending from the other side of said notch towards the other end of said substrate material, first and second leads secured to said first and second electrodes respectively, and a sealed cover means secured to said top surface extending over said notch, said cover means being secured at its periphery to said top surface and being positioned between said first and second leads.

Claim 3

The surge arrestor of claim 1 wherein said cover means is comprised of a transparent material.

Claim 4

The surge arrestor of claim 1 wherein said cover means is comprised of a transparent glass material.

Claim 5

The surge arrestor of claim 1 wherein said cover means has a dome portion which is spaced above the top surface of said substrate material to define a compartment area.

Claim 6

The surge arrestor of claim 4 wherein an inert gas is confined in said compartment area.

Claim 7

The surge arrestor of claim 1 wherein said electrodes are screen printed on said substrate material.

Claim 8

The surge arrestor of claim 1 wherein a seal material is screen printed on said top surface of said substrate material, said seal material sealably engaging the periphery of said cover means.

Claim 9

The surge arrestor of claim 1 wherein a third electrode is positioned on said top surface and extends from said notch, said notch being Y-shaped.

Claim 10

A surge arrestor comprising, a flat substrate material having a top surface and opposite ends, said substrate material having a spark gap notch formed in its top surface, a first electrode on said top surface extending from one side of said notch towards one end of said substrate material, a second electrode on said top surface extending from the other side of said notch towards the other end of said substrate material, first and second leads secured to said first and second electrodes respectively, a sealed cover means secured to said top surface extending over said notch, said substrate material having an opening formed therein and extending therethrough, one end of said opening communicating with the interior of said cover means, said opening being provided to supply an inert gas material into the interior of said cover means, and a solder plug means in the other end of said opening to seal said opening.

Claim 11

A surge arrestor comprising, a flat substrate material having a top surface and opposite ends, said substrate material having a spark gap notch formed in its top surface, a first electrode on said top surface extending from one side of said notch towards one end of said substrate material, a second electrode on said top surface extending from the other side of said notch towards the other end of said substrate material, first and second leads secured to said first and second electrodes respectively, a sealed cover means secured to said top surface extending over said notch, said substrate material having an opening formed therein and extending therethrough, one end of said opening communicating with the interior of said cover means, said opening being provided to supply an inert gas material into the interior of said cover means, and a solder plug means in the other end of said opening to seal said opening.

Claim 12

The surge arrestor of claim 9 wherein said electrodes comprise a screen printed electrode material, at least some of said electrode material extending downwardly through said opening, said solder plug means being secured to the electrode material in said opening.

Claim 13

A surge arrestor comprising, a flat substrate material having top and bottom surfaces opposite ends and opposite sides, said substrate material having a spark gap notch formed in its top surface, a first electrode on said top surface extending from one side of said notch towards one end of said substrate material, a second electrode on said top surface extending from the other side of said notch towards the other end of said substrate material, said substrate material having an opening formed therein and extending therethrough, said second electrode extending downwardly through said opening to said bottom surface, said second electrode extending outwardly on said bottom surface towards said other end, a first lead secured to said first electrode, a second lead secured to said second electrode on said bottom surface adjacent said other end, a sealed cover means secured to said top surface extending over said notch, and means sealing said opening.

Claim 14

A surge arrestor comprising, a flat substrate material having top and bottom surfaces opposite ends and opposite sides, said substrate material having a spark gap notch formed in its top surface, a first electrode on said top surface extending from one side of said notch towards one end of said substrate material, a second electrode on said top surface extending from the other side of said notch towards the other end of said substrate material, said substrate material having an opening formed therein and extending therethrough, said second electrode extending downwardly through said opening to said bottom surface, said second electrode extending outwardly on said bottom surface towards said other end, a first lead secured to said first electrode, a second lead secured to said second electrode on said bottom surface adjacent said other end, a sealed cover means secured to said top surface extending over said notch, and means sealing said opening.

Claim 15

The surge arrestor of claim 11 wherein said notch comprises a rectangular portion and a wedge shaped portion at one end thereof, said second electrode on said bottom surface defining a blow-out coil so that a spark occurring in said rectangular portion will be blown into said wedge shaped portion away from said electrodes.

Claim 16

The surge arrestor of claim 11 wherein said notch comprises a rectangular portion having a pair of diverging notch portions extending from one end thereof, a third electrode on said top surface having one end positioned adjacent said notch between said diverging notch portions and extending towards one of said sides of said substrate material, said second electrode on said bottom surface defining a blow-out coil so that a spark occurring in said rectangular portion will be blown into said diverging notch portions.