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| Method and apparatus for eliminating unequal phase splitting at piping junctions |
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| Rotary flow-path exchanging valve |
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| Hydraulic control valve unit |
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| Indicator assembly |
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| Valve combination |
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| Freely programmable position indicating apparatus |
| OF PREFERRED EMBODIMENTS Throughout all the Figures, same or corresponding elements are generally ... |
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| Fluid control element |
| OF THE INVENTION Referring now to FIGS. 1 and 2, the configuration of the control elements in ... |
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| Inline liquid flow control valve |
| For the purposes of promoting an understanding of the principles disclosed herein, reference will ... |
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| Directional gate valve |
| What is calimed is: 1. A directional gate valve which can be used as a control element and consists ... |
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Flat capacitor having staked foils and edge-connected connection members
| Details |
Inventors: O'Phelan, Michael J.; Poplett, James M.; Tong, Robert R.; Iyer, Rajesh; Barr, Alexander Gordon;
Assignee: Cardiac Pacemakers, Inc. (St. Paul, MN)
Primary Examiner: Dinkins; Anthony
Assistant Examiner: Ha; Nguyen T.
Attorney, Agent or Firm: Schwegman, Lundberg, Woessner & Kluth, P.A.
A method of joining a connection member to a capacitor foil using a staking tool having a tip of less than 0.030" (0.762 mm) in diameter. Another embodiment couples multiple connection members of a capacitor together by edge-connecting each connection member to its substantially flush neighboring connection members. In one aspect, a capacitor includes a multi-anode stack connected at a first weld by a weld joint less than 0.060" (1.524 mm) in diameter and a tab attached to one of the anodes of the multi-anode stack at a second weld. In one aspect, an exemplary method joining one or more foils using a staking tool having a tip of less than approximately 0.060" (1.524 mm) in diameter. In another aspect, a capacitor including a capacitor case having an electrolyte therein and a high formation voltage anode foil having a porous structure and located within the capacitor case. |
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DETAILED DESCRIPTION The following detailed description, which references and incorporates the figures, describes and illustrates one or more specific embodiments of the invention.
These embodiments, offered not to limit but only to exemplify and teach the invention, are shown and described in sufficient detail to enable those skilled in the art to practice the invention.
Thus, where appropriate to avoid obscuring the invention, the description may omit certain information known to those of skill in the art.
FIG.
1 shows a flat capacitor 100 according to one embodiment of the present invention.
Although capacitor 100 is a D-shaped capacitor, in other embodiments, the capacitor is any desirable shape, including, but not limited to rectangular, circular, oval, square, or other symmetrical or asymmetrical shape.
Capacitor 100 includes a case 101 which contains a capacitor stack 102.
In one embodiment, case 101 is manufactured from a conductive material, such as aluminum.
In other embodiments, the case is manufactured using a nonconductive material, such as a ceramic or a plastic.
Capacitor 100 includes a first terminal 103 and a second terminal 104 for connecting capacitor stack 102 to an outside electrical component, such as implantable medical device circuitry.
In one embodiment, terminal 103 is a feedthrough terminal insulated from case 101, while terminal 104 is directly connected to case 101.
Alternatively, the capacitor incorporates other connection methods.
For instance, in some embodiments, capacitor 100 includes two feedthrough terminals.
In the present embodiment, capacitor stack 102 includes capacitor modules or elements 105a, 105b, 105c, .
.
.
, 105n.
FIG.
2 shows details of one example of capacitor element 105a, which is representative of capacitor elements 105b-105n.
Element 105a includes a cathode 201, a separator 202, and an anode stack 203.
In other embodiments, other numbers and arrangements of anodes, cathodes, and separators are utilized.
Cathode 201 is a foil attached to other cathodes of capacitor stack 102 and to terminal 104
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Metal Working 
