Capacitor for an implantable cardiac defibrillator
First Claim
1. A method of manufacturing a layered capacitor comprising the steps:
- forming a plurality of conductive sheets for use in a capacitor, each of the sheets having a profile including a sacrificial tab extending peripherally from the sheet;
defining in each sacrificial tab at least a first alignment figure;
stacking the sheets;
aligning the profiles of the stacked sheets with each other by aligning the alignment figures of each sacrificial tab;
removing the sacrificial tab from each of the sheets; and
positioning the aligned stacked sheets in a capacitor housing.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of manufacturing a capacitor for use in an implantable cardiac defibrillator by forming a set of conductive sheets with the same profile having a sacrificial portion. An alignment figure is formed in each sheet, and the sheets are stacked and aligned by registering the alignment figures with each other. The sacrificial portions are removed from each of the sheets, which are secured together and positioned in a capacitor housing. Each sheet may include two major portions joined by the sacrificial portion, so that each major portion may become part of a separate capacitor stack after the sacrificial portion is removed, doubling manufacturing throughput.
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Citations
16 Claims
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1. A method of manufacturing a layered capacitor comprising the steps:
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forming a plurality of conductive sheets for use in a capacitor, each of the sheets having a profile including a sacrificial tab extending peripherally from the sheet; defining in each sacrificial tab at least a first alignment figure; stacking the sheets; aligning the profiles of the stacked sheets with each other by aligning the alignment figures of each sacrificial tab; removing the sacrificial tab from each of the sheets; and positioning the aligned stacked sheets in a capacitor housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing capacitors comprising the steps:
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forming a plurality of conductive sheets, each sheet having a first portion, a second portion, and a sacrificial portion connected integrally between the first portion and the second portion; defining in each sacrificial portion of each sheet at least a first alignment figure;
stacking the sheets;aligning the sheets by aligning the alignment figures with each other whereby the first portions comprise a first stack and the second portions comprise a second stack; removing the sacrificial portion from each of the sheets; and positioning each stack in a respective capacitor housing. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of manufacturing a layered capacitor comprising the steps:
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forming a plurality of conductive sheets for use in a capacitor, each of the sheets having a profile including at least two spaced apart sacrificial portions contiguous with a sheet portion; defining in each sacrificial portion at least a first alignment figure; stacking the sheets to provide stacked sheet portions and stacked sacrificial portions with corresponding ones of the sacrificial portions being aligned with one another in a stacked relationship; aligning the sheet portions of each of the sheets by aligning the alignment figures of the sacrificial portions with each other; removing the sacrificial portions from each of the sheet portions; and positioning the stacked sheet portions in a capacitor housing.
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16. A method of manufacturing capacitors comprising the steps:
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forming a plurality of conductive sheets, each sheet having a first portion, a second portion, and at least two spaced apart sacrificial portions connected integrally between the first portion and the second portion; defining in each sacrificial portion at least one alignment figure; stacking the sheets; aligning the sheets by aligning the alignment figures with each other such that the first portions comprise a first stack and the second portions comprise a second stack; removing the sacrificial portion from each of the sheets; and positioning each stack in a respective capacitor housing.
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Specification