Patent US3890546A successfully refreshed from Google Patents.
US3890546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical component with offset radial leads
Assignee: Sprague Electric Co
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Filing: 1974-06-03
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Granted: 1975-06-17
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Expires: 1994-06-03
Abstract
Abstract A radial leaded monolithic ceramic capacitor is described wherein the monolithic ceramic body has fired-silver terminal coatings adhered to each of two opposite body faces. The coatings extend over a portion of the adjacent body faces, to one of which a headed lead wire is soldered near each end. The lead heads each project outwardly beyond the silver coated body faces, and a solder fillet is formed therebetween providing a strong bond between the leads and the body.
Inventors
- 👤 James H Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:49
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/228; H01G4/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
An electrical component having radial offset leads comprising: a rectangular electrical component body; a first and second metal coating covering one face and an opposite face of said body, respectively, each said coating extending over a portion of a common adjacent face of said component body; a first and second lead wire extending away at right angles from said common adjacent face, said lead wires each having an enlarged end portion and a shaft portion, a part of said enlarged end portion of said first and second lead wires being offset and projecting outwardly beyond said one and said opposite faces, respectively; and solder bonds between said enlarged end portions of said first and second lead wires and said first and second coatings, respectively, a solder fillet filling the corner formed at said projecting enlarged end portion, said shaft of said lead wires lying in a plane that is essentially coincident with a bisecting plane of said body, a first body surface plane in which said one body face lies being intersected by said shaft of said first lead wire and a second body surface plane in which said opposite body face lies being intersected by said shaft of said second lead wire.
Claim 2
Dependent Claim
203 words
An electrical component having radial offset leads comprising: a rectangular electrical component body; a first and second metal coating covering one face and an opposite face of said body, respectively, each said coating extending over a portion of a common adjacent face of said component body; a first and second lead wire extending away at right angles from said common adjacent face, said lead wires each having an enlarged end portion and a shaft portion, a part of said enlarged end portion of said first and second lead wires being offset and projecting outwardly beyond said one and said opposite faces, respectively; and solder bonds between said enlarged end portions of said first and second lead wires and said first and second coatings, respectively, a solder fillet filling the corner formed at said projecting enlarged end portion, said shaft of said lead wires lying in a plane that is essentially coincident with a bisecting plane of said body, a first body surface plane in which said one body face lies being intersected by said shaft of said first lead wire and a second body surface plane in which said opposite body face lies being intersected by said shaft of said second lead wire.
Claim 3
Dependent Claim
81 words
The component of claim 1 wherein said first and second metal coatings further have other extensions over a portion of the other commonly adjacent faces to said one and to said opposite body faces, and wherein said enlarged end portions of said lead wires are wider than and project beyond the wide dimensions of said metal coated body, each said solder bond further including other fillets between said laterally projecting enlarged end portions and two of said other metal coating extensions.
Claim 4
Dependent Claim
46 words
The component of claim 1 wherein said enlarged end portion of each of said leads includes one dominant lateral projection at the end of said lead forming a flattened enlarged surface at said lead end, said dominant lateral projections of said two leads facing each other.
Claim 5
Dependent Claim
52 words
The component of claim 1 wherein said body comprises a dielectric ceramic material having a plurality of buried layers, the alternate of said layers extending to said one body face and contacting said first metal coating, the other of said layers extending to said opposite face and contacting said second metal coating.
Claim 6
Dependent Claim
30 words
The component of claim 1 wherein said metal coatings are comprised of silver and said solder bonds are a solder alloy composed of from 60-99% tin and from 1-40% silver.
Claim 7
Dependent Claim
52 words
The component of claim 1 further comprising at least a second rectangular component body, said bodies having essentially the same length and width, said bodies being stacked in mutual alignment and each said solder bond extending continuously to contact the adjacent of said end coverings and making electrical and physical contact therebetween.
Claim 8
Dependent Claim
28 words
The component of claim 1 additionally comprising an insulative and protective outer covering over said component, over said soldered bonds and over said enlarged portions of said leads.
Claim 9
Dependent Claim
13 words
The component of claim 7 wherein said insulative covering is a molded resin.
Claim 10
Dependent Claim
16 words
The component of claim 7 wherein said insulative coating is a conformal fluidized bed covering material.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |