US4401989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television line antenna apparatus
Assignee: Individual
•
Filing: 1982-07-19
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Granted: 1983-08-30
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Expires: 2002-07-19
Abstract
Abstract Television and FM radio antenna apparatus with a tuneable circuit to be coupled with a building wiring system and thus supplement or replace conventional interior or exterior antennas.
Inventors
- 👤 Telesforo Tulli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
Antenna apparatus for coupling the two conductors of a television antenna lead to the conductors of a building line comprising: a tunable circuit, said tunable circuit comprising an inductor having first and second terminals and a tap, a tuning capacitor connected between said first terminal and said tap; first connecting means for connecting the junction of said first terminal and said tap to one of the conductors of the antenna lead; second connecting means for connecting said second terminal to the other conductor of the antenna lead; third connecting means for connecting the junction of said first terminal and said tap to ground; capacitance coupling means connected to at least one of said terminals; and multiposition manual switching means connected between said capacitance coupling and the conductors of the building, said switching means having a first position for connecting both conductors of the building to said capacitance coupling means, said switching means having second and third positions wherein either one or the other other conductor of the building is connected to said capacitance coupling means.
Claim 2
Dependent Claim
175 words
Antenna apparatus for coupling the two conductors of a television antenna lead to the conductors of a building line comprising: a tunable circuit, said tunable circuit comprising an inductor having first and second terminals and a tap, a tuning capacitor connected between said first terminal and said tap; first connecting means for connecting the junction of said first terminal and said tap to one of the conductors of the antenna lead; second connecting means for connecting said second terminal to the other conductor of the antenna lead; third connecting means for connecting the junction of said first terminal and said tap to ground; capacitance coupling means connected to at least one of said terminals; and multiposition manual switching means connected between said capacitance coupling and the conductors of the building, said switching means having a first position for connecting both conductors of the building to said capacitance coupling means, said switching means having second and third positions wherein either one or the other other conductor of the building is connected to said capacitance coupling means.
Claim 3
Dependent Claim
38 words
The antenna apparatus of claim 1 wherein the ground is the ground for the building and said switching means has a fourth position wherein neither of the conductors of the building is connected to said capacitance coupling means.
Claim 4
Dependent Claim
30 words
The antenna apparatus of claim 1 or 2 wherein said capacitance coupling means comprises first and second high-pass capacitors connected to said first and second terminals respectively of said inductor.
Claim 5
Dependent Claim
14 words
The apparatus of claim 3 wherein said second connecting means is a variable resistor.
Claim 6
Dependent Claim
11 words
The apparatus of claim 4 wherein said variable resistor is wirewound.
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |