Cardiac Pacemakers, Inc.

Brian V Waytashek

James M Poplett

Gregory J Sherwood

Robert R Tong

Michael J O'Phelan

Alexander Gordon Barr

Luke J Christenson

Richard J Kavanagh

Brian L Schmidt

Brian D Schenk

Rajesh Iyer

A Gordon Barr

Peter Jay Kuhn

Aaron Louis Floeter

Jaymes Olson

Matthew Anderson

A capacitor case sealed to retain electrolyte; a sintered anode disposed in the capacitor case, the sintered anode having a shape wherein the sintered anode includes a mating portion; a conductor coupled to the sintered anode, the conductor sealingly extending through the capacitor case to a terminal disposed on an exterior of the capacitor case; a sintered cathode disposed in the capacitor case, the sintered cathode having a shape that mates with the mating portion of the sintered anode such that the sintered cathode matingly fits in the mating portion of the sintered anode; a separator between the sintered anode and the sintered cathode; and a second terminal disposed on the exterior of the capacitor case and in electrical communication with the sintered cathode, with the terminal and the second terminal electrically isolated from one another.

Sintered electrodes for a capacitor

Sintered electrodes for capacitor anodes, cathodes, anode systems, and cathode systems

One aspect provides a capacitor feedthrough assembly having an electrically conductive member dimensioned to extend at least partially through a feedthrough hole of a case of the capacitor, the conductive member having a passage therethrough.

Flat capacitor for an implantable medical device

A method includes connecting together one or more anode connection members of one or more anode foils and one or more cathode connection members of one or more cathode foils and electrically isolating the one or more anode foils from the one or more cathode foils. A capacitor stack includes a plurality of cathode layers having cathode connection members and a plurality of anode layers having anode connection members. The anode connection members are connected to the cathode connection members and configured such that the anode layers can be electrically separated from the cathode layers by cutting only the anode connection members or the cathode connection members.

Method for interconnecting anodes and cathodes in a flat capacitor

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.

Fuseable cathode plate for electrolytic capacitor

The present subject matter includes a capacitor stack having at least one cathode layer, and at least one anode layer. Separator paper is shaped and sized to separate the anode and the cathode and resist breakdown. The capacitor stack is compact, and is adapted for use in compact devices. For example, the capacitor stack is adapted for use in cardiac rhythm management devices which are implanted.

Method and apparatus for electrically isolating capacitor electrodes using separator

The present subject matter includes a capacitor stack having a plurality of cathode layers, and a plurality of anode layers. Separator paper is shaped and sized to separate the anode and the cathode and prevent breakdown. The capacitor stack is compact, and is adapted for use in compact devices. For example, the capacitor stack is adapted for use in cardiac rhythm management devices which are implanted.

One aspect provides a capacitor having a first stack of capacitive elements a second stack of capacitive elements, wherein the first and second stacks are enclosed in separate compartments of a capacitor case that electrically isolate the electrolytes of each stack from one another.

In one aspect, a method of manufacturing a capacitor includes disposing one or more conductive layers of a first electrode stack in a recess of an alignment mechanism, where the recess is positioned relative to two or more alignment elements. The method further includes placing a separator over the one or more conductive layers where an outer edge of the separator contacts the two or more alignment elements. In one embodiment, a capacitor includes anode and cathode foils having offsetting edge portions. In one embodiment, a multiple tab cathode for a flat capacitor. A plurality of cathode tabs are portioned into a plurality of cathode tab groups positioned in different locations along the edge of the capacitor stack to reduce the amount of space required for connecting and routing the cathode tabs.

Method of constructing a capacitor stack for a flat capacitor

A multi-anodic aluminum electrolytic capacitor includes an electrical connection to the multiple porous (e.g., tunnel-etched) anodes in an anode stack using a single anode tab that is attached only to a first anode. Other anodes are electrically coupled to the anode tab through the first anode. Anodes in the anode stack are in intimate physical and electrical contact with other such anodes as a result of layering effected by planar stacking or cylindrical winding. The need for separate tabs to different anode layers is eliminated or at least minimized, thereby reducing capacitor volume, increasing capacitor reliability, and reducing the cost and complexity of the capacitor manufacturing process for multi-anodic capacitors. The capacitor is capable of use in implantable defibrillators, camera photoflashes, and other electric circuit applications.

Growing community of inventors

Lino Lakes, MN, United States of America

Brian V Waytashek