US4004200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip capacitor with spring-like leads
Assignee: Johanson Manufacturing Corp
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Filing: 1975-07-21
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Granted: 1977-01-18
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Expires: 1995-07-21
Abstract
Abstract A lead attachment for a ceramic chip capacitor characterized by a metallic strip lead having at one end two pre-formed L-shaped tabs, perpendicular relative to said metal lead strip, the distance between the arms of said tabs being less than the width of said chip, and said strip having a longitudinal slot running from said tabs partially down its length; each tab having an arm positioned inwardly relative to the longitudinal axis of said lead strip such that said tabs mechanically grip in a spring-like manner, facilitated by the slot, the end of a metalized, pretinned ceramic chip capacitor positioned between said tabs, and thereafter said lead tabs further secured by heating the assembly, thus forming a uniform electrical connection between said chip capacitor and said tab portion of said lead.
Inventors
- 👤 John E. Johanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:20
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/228; H01G4/248; H01G2/00; H01G2/02; H01G2/06; H01G2/065
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
161 words
In a solid state electronic component, a ceramic chip capacitor and lead attachment assembly in combination comprising: a substantially rectangular capacitor having electrode ends; a metalized layer covering said electrode ends and a portion of the capacitor surfaces abutting and communicating with said electrode ends; a tinned layer covering said metalized layer upon said electrode ends; a conductive metallic lead strip being substantially rectangular, for each electrode end; said metallic lead strip terminating, to interface with said tinned and metalized capacitor, in a clasping tab portion, extending beyond the width of said lead strip, bent in a perpendicular relation to embrace three surfaces of said metalized and tinned capacitor, said tab portion, substantially encompassing said tinned electrode end, having cooperative, perpendicularly extending armatures abutting two of said metalized capacitor surfaces; and a mediately positioned longitudinal slot extending from said tab portion to approximately one-half the length of said conductive lead strip to effect and enhance the clasping action of said tabs.
Claim 2
Dependent Claim
161 words
In a solid state electronic component, a ceramic chip capacitor and lead attachment assembly in combination comprising: a substantially rectangular capacitor having electrode ends; a metalized layer covering said electrode ends and a portion of the capacitor surfaces abutting and communicating with said electrode ends; a tinned layer covering said metalized layer upon said electrode ends; a conductive metallic lead strip being substantially rectangular, for each electrode end; said metallic lead strip terminating, to interface with said tinned and metalized capacitor, in a clasping tab portion, extending beyond the width of said lead strip, bent in a perpendicular relation to embrace three surfaces of said metalized and tinned capacitor, said tab portion, substantially encompassing said tinned electrode end, having cooperative, perpendicularly extending armatures abutting two of said metalized capacitor surfaces; and a mediately positioned longitudinal slot extending from said tab portion to approximately one-half the length of said conductive lead strip to effect and enhance the clasping action of said tabs.
Claim 3
Dependent Claim
24 words
The capacitor and lead assembly of claim 1 wherein said capacitor is of the monolithic type having a plurality of electrodes -- dielectric layers.
Claim 4
Dependent Claim
135 words
A substantially rectangular chip capacitor with pre-tinned and metallized ends with a lead attachment comprising in combination: a rectangularly shaped metal lead strip; two cooperative substantially L-shaped tabs, bent in a perpendicular relation to said lead strip, terminating one end of said lead strip, each tab extending beyond the width of said lead strip such that the short arm portions of said tabs emanate away from said lead strip; and oppose and are inclined to each other; a longitudinal slot separating said tabs and extending therefrom for approximately one-half of the length along the central axis of said lead strip; said L-shaped tabs acting in combination with said slot to embrace and mechanically grip said metallized and tinned end of said chip capacitor, positioned relative to and flush with said tabs, in a springlike fashion.
Claim 5
Dependent Claim
135 words
A substantially rectangular chip capacitor with pre-tinned and metallized ends with a lead attachment comprising in combination: a rectangularly shaped metal lead strip; two cooperative substantially L-shaped tabs, bent in a perpendicular relation to said lead strip, terminating one end of said lead strip, each tab extending beyond the width of said lead strip such that the short arm portions of said tabs emanate away from said lead strip; and oppose and are inclined to each other; a longitudinal slot separating said tabs and extending therefrom for approximately one-half of the length along the central axis of said lead strip; said L-shaped tabs acting in combination with said slot to embrace and mechanically grip said metallized and tinned end of said chip capacitor, positioned relative to and flush with said tabs, in a springlike fashion.
Claim 6
Dependent Claim
63 words
The device of claim 3 wherein the lead attachment has a length between the outer extent of said opposing arms less than the length of the metallized and tinned end of said capacitor and the length between the inner portions of said arms is substantially the same as but not greater than the length of the metallized and tinned end of said capacitor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |