Patent US4162518A successfully refreshed from Google Patents.
US4162518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode body for solid electrolytic capacitor
Assignee: Kemet Electronics Corp
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Filing: 1977-08-15
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Granted: 1979-07-24
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Expires: 1997-08-15
Abstract
Abstract A slab-shaped pressed anode body for electrolytic capacitors having a geometrical configuration which minimizes the effect of sintering induced warpage on subsequent manufacturing operations.
Inventors
- 👤 Horace E. Curlis, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:45
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/048; H01G9/052
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A slab shaped anode body of pressed anodizeable metal powder having side surfaces which are relatively narrow with respect to the length of the anode body measured between the side surfaces and having a substantially symmetrical elongate cross-section perpendicular to its shorter central axis, the length of said cross-section being substantially greater than the width of said cross-section, said width varying from a maximum at its center to a minimum at the relatively narrow sides of the anode body.
Claim 2
Dependent Claim
79 words
A slab shaped anode body of pressed anodizeable metal powder having side surfaces which are relatively narrow with respect to the length of the anode body measured between the side surfaces and having a substantially symmetrical elongate cross-section perpendicular to its shorter central axis, the length of said cross-section being substantially greater than the width of said cross-section, said width varying from a maximum at its center to a minimum at the relatively narrow sides of the anode body.
Claim 3
Dependent Claim
17 words
A slab-shaped pressed anode body in accordance with claim 1 wherein said cross-section is hexagonal in shape.
Claim 4
Dependent Claim
16 words
A slab-shaped pressed anode body in accordance with claim 1 wherein said anodizeable metal is tantalum.
Claim 5
Dependent Claim
144 words
A solid electrolyte capacitor comprising a slab-shaped anode body of pressed anodizeable metal powder having side surfaces which are relatively narrow with respect to the length of the anode body measured between the side surfaces and having a substantially symmetrical elongate cross-section perpendicular to its shorter central axis, the length of said cross-section being substantially greater than the width of said cross-section, said width varying from a maximum at its center to a minimum at the relatively narrow sides of the anode body; an anode riser wire joined to said slab-shaped body extending in alignment with said shorter central axis; an anode terminal wire affixed to said riser wire; an electrolytic layer formed on said slab-shaped anode body; a conductive metal coating on said electrolyte layer; a negative terminal lead attached to said metal layer; and an epoxy case molded about said capacitor body.
Claim 6
Dependent Claim
144 words
A solid electrolyte capacitor comprising a slab-shaped anode body of pressed anodizeable metal powder having side surfaces which are relatively narrow with respect to the length of the anode body measured between the side surfaces and having a substantially symmetrical elongate cross-section perpendicular to its shorter central axis, the length of said cross-section being substantially greater than the width of said cross-section, said width varying from a maximum at its center to a minimum at the relatively narrow sides of the anode body; an anode riser wire joined to said slab-shaped body extending in alignment with said shorter central axis; an anode terminal wire affixed to said riser wire; an electrolytic layer formed on said slab-shaped anode body; a conductive metal coating on said electrolyte layer; a negative terminal lead attached to said metal layer; and an epoxy case molded about said capacitor body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |