US3660790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical inductive/capacitive component
Assignee: Fiat SpA
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Filing: 1970-07-15
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Granted: 1972-05-02
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Expires: 1990-07-15
Abstract
Abstract A component for providing both inductive and capacitive properties is formed by at least two interleaved spiral coils insulated from each other and each provided with a respective terminal, one of which is an input and the other an output terminal. The component has inductive and capacitive properties, or purely capacitive properties, according to the spacing between the terminals, if any, measured along the spirals.
Inventors
- 👤 Mario Palazzetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:23
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; H; H01; H01F; H01F38/00; H01F38/12; H01F5/00; H01G; H01G4/00; H01G4/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
An electric inductive-capacitive component, comprising: a. a first plurality of conductive coils spirally wound in sideby-side insulated relationship, having respective points connected to one another and to a first common terminal wherein a signal is applied to said first common terminal; b. a second plurality of conductive coils spirally wound in an interleaved pattern with the first plurality of coils, insulated from one another and from the first plurality, and having respective points connected to one another and to a second common terminal wherein a signal is extracted from said second common terminal; wherein the inductive characteristics of the component are determined by the distance between the first and second common terminals along the spiral and the capacitive characteristics of the component are determined by the coupling between the two pluralities of coils.
Claim 2
Dependent Claim
133 words
An electric inductive-capacitive component, comprising: a. a first plurality of conductive coils spirally wound in sideby-side insulated relationship, having respective points connected to one another and to a first common terminal wherein a signal is applied to said first common terminal; b. a second plurality of conductive coils spirally wound in an interleaved pattern with the first plurality of coils, insulated from one another and from the first plurality, and having respective points connected to one another and to a second common terminal wherein a signal is extracted from said second common terminal; wherein the inductive characteristics of the component are determined by the distance between the first and second common terminals along the spiral and the capacitive characteristics of the component are determined by the coupling between the two pluralities of coils.
Claim 3
Dependent Claim
14 words
The components of claim 1 wherein the coils are formed by respective laminar elements.
Claim 4
Dependent Claim
12 words
The component of claim 1 wherein the coils are formed by wires.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |