US3573566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolyte capacitor with axial leads and method of attaching the same
Assignee: Sprague Electric Co
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Filing: 1969-04-08
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Granted: 1971-04-06
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Expires: 1989-04-08
Abstract
Abstract A solid electrolyte capacitor is provided with axially aligned cathode and anode lead wires, with the cathode lead in electrical contact over a substantial portion of the cathode surface. The leads are attached by inserting a capacitor section into a wireform at a point along its length having a preshaped angular configuration designed to generally conform to portions of an end and side surface of the capacitor section. The wireform is connected to both the anode riser and substantial portions of the cathode coating and then severed at nonconforming locations so as to electrically isolate the ends of the wireform.
Inventors
- 👤 Lawrence E Fournier
- 👤 Robert S Shuris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/008; H01G9/012
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
The capacitor of claim 1 wherein said first wire element and said second wire element are severed portions of a single wireform.
Claim 2
Independent Claim
167 words
A method of attaching lead-in wires to a solid electrolyte capacitor having an anode with a riser element projecting therefrom, a dielectric on the surface of the anode, a solid electrolyte in contact with the dielectric, and a cathode electrode on the electrolyte, said method comprising the steps of: preshaping a wireform so that the central portion generally conforms to the body of said capacitor and with the end portions in axial alignment for alignment with the capacitor whEn said capacitor is seated within said deformed central portion; seating the capacitor within said deformed central portion so that the wireform is in intimate contact with said cathode electrode along the lateral surface, with a portion of the end cathode electrode surface, and with a portion of the anode riser element connection; securing the wireform to the cathode electrode along the intimate contact lateral surface and to the anode riser element; and removing a section of the wireform between said riser element and said intimate contact lateral surface.
Claim 3
Dependent Claim
100 words
The method of claim 3 further comprising: attaching a plurality of said preshaped wireforms to a support means; seating a plurality of capacitors within said deformed central portions, respectively, so that each wireform is in intimate contact along the respective lateral cathode electrode surface, with a portion of the end cathode electrode surface, and with a portion of the anode riser element; securing each wire form to the cathode electrode along said intimate contact lateral surface and to said riser element; and removing each respective wireform section between said riser element and said lateral contact surface; and encapsulating each capacitor.
References Cited (Backward Citations)
US3126503A
Cited
US3166693A
Cited
US3189797A
Cited
US3244946A
Cited
US3345543A
Cited
US3445731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |