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US 8,150,515 B2Granted
Fuseable cathode plate for electrolytic capacitor
AssigneeCardiac Pacemakers, Inc.
InventorBrian V. Waytashek
Life of this patent
Estimating the term…
Abstract
An electrolytic capacitor is constructed in a manner to provide a fusing capability and welded connections between the cathode plates. Each cathode plates has a notch at its periphery within which is an extending leg over which a weldable metallic clip is fitted in order to reduce the area of the cathode plate through which current is conducted to reach the clip and form a fusible link.
Claims15
An electrolytic capacitor, comprising:
- a plurality of planar metallic anode plates with an insulating oxide layer formed on both surfaces of each anode plate for constituting a dielectric;
- a plurality of electrolyte impregnated separators;
- a plurality of planar metallic cathode plates;
- wherein the capacitor is constructed as a stacked structure of alternating anode and cathode plates with an electrolyte impregnated separator interposed between each anode and cathode plate;
- a clip fitted over a peripheral portion of each cathode plate, the clips being welded together to electrically connect the cathode plates in common;
- and,
- wherein each cathode plate has a notch at its periphery within which is an extending leg of the cathode plate over which the clip is fitted in order to reduce the area of the cathode plate through which current is conducted to reach the clip and form a fusible link.
4 more elements
A method for constructing an electrolytic capacitor, comprising:
- providing a plurality of planar metallic anode plates with an insulating oxide layer formed on both surfaces of each anode plate for constituting a dielectric;
- providing a plurality of electrolyte impregnated separators;
- providing a plurality of planar metallic cathode plates;
- constructing the capacitor as a stacked structure of alternating anode and cathode plates with an electrolyte impregnated separator interposed between each anode and cathode plate;
- fitting a clip over a peripheral portion of each cathode plate, the clips being welded together to electrically connect the cathode plates in common;
- and,
- wherein each cathode plate has a notch at its periphery within which is an extending leg of the cathode plate over which the clip is fitted in order to reduce the area of the cathode plate through which current is conducted to reach the clip and form a fusible link.
4 more elements
An implantable cardiac rhythm management device, comprising:
- an implantable housing;
- sensing and therapy circuitry disposed within the implantable housing;
- a capacitive discharge circuit that includes one or more electrolytic capacitors, wherein each capacitor comprises:
- a plurality of planar metallic anode plates with an insulating oxide layer formed on both surfaces of each anode plate for constituting a dielectric;
- a plurality of electrolyte impregnated separators;
- a plurality of planar metallic cathode plates;
- wherein the capacitor is constructed as a stacked structure of alternating anode and cathode plates with an electrolyte impregnated separator interposed between each anode and cathode plate;
- a clip fitted over a peripheral portion of each cathode plate, the clips being welded together to electrically connect the cathode plates in common;
- and,
- wherein each cathode plate has a notch at its periphery within which is an extending leg of the cathode plate over which the clip is fitted in order to reduce the area of the cathode plate through which current is conducted to reach the clip and form a fusible link.
7 more elements
Dependencies are inferred from the claim text.