Electrolytic capacitor
AssigneeSprague Electric Company
InventorWilliam P. Montgomery
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Abstract
An electrolytic capacitor which has a porous valve-metal anode pellet, a tri-metal housing, and a hermetic glass-metal seal, has a thin layer of a ductile and solderable metal on the inner surface of the housing adjacent the seal. This layer extends from the mouth of the housing to at most the bottom of the glass-metal seal which is sealed, preferably by soldering, to the housing.
Claims8
In an electrolytic capacitor having a porous anodized valve-metal pellet anode, a hermetic glass-metal seal having a metal ring forming its periphery and a housing in the form of a can, the improvement comprises a thin layer of a ductile and solderable metal on the inner surface of the mouth of said can which extends into said can at most as far as the bottom of said seal.
Dependencies are inferred from the claim text.