Patent US4467393A successfully refreshed from Google Patents.
US4467393A
Expired / Lapsed
US
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Trimming capacitor
Assignee: US Philips Corp
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Filing: 1982-10-25
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Granted: 1984-08-21
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Expires: 2002-10-25
Abstract
Abstract An electronic circuit with a trimming capacitor with a first electrode in the form of a flexible sheet metal lug which is arranged in confronting relationship with a rigid counter electrode in the form of a plate capacitor. The flexible sheet metal lug and the plate capacitor are rigidly connected to an insulating support, for example a circuit board, and the capacitance of the trimming capacitor can be adjusted by bending the sheet metal lug.
Inventors
- 👤 Karl H. Kupfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:59
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/18; H01; H01G; H01G5/00; H01G5/16; H01G5/18; H05K2201/00; H05K2201/10; H05K2201/10007; H05K2201/10015; H05K2203/00; H05K2203/17; H05K2203/171
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
An electronic circuit with a trimming capacitor consisting of a flexible metal lug as a first electrode and a rigid counter electrode, said metal lug being arranged in confronting relationship with said counter electrode, characterized in that: said counter electrode is formed by a plate capacitor rigidly connected to an insulating support; said metal lug being bendable for varying the capacitance of the trimming capacitor; said metal lug being soldered to said insulating support; and said metal lug being a strip of a band of tin.
Claim 2
Dependent Claim
86 words
An electronic circuit with a trimming capacitor consisting of a flexible metal lug as a first electrode and a rigid counter electrode, said metal lug being arranged in confronting relationship with said counter electrode, characterized in that: said counter electrode is formed by a plate capacitor rigidly connected to an insulating support; said metal lug being bendable for varying the capacitance of the trimming capacitor; said metal lug being soldered to said insulating support; and said metal lug being a strip of a band of tin.
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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |