Patent US4112394A successfully refreshed from Google Patents.
US4112394A
Expired / Lapsed
US
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Method and means of link coupling with separate control of link reactance and coupling coefficient
Assignee: United States Department of the Navy
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Filing: 1977-01-03
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Granted: 1978-09-05
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Expires: 1997-01-03
Abstract
Abstract A method and means of link coupling to a tuned circuit in which the link ctance and the coupling coefficient are separately controlled. Mutual and direct coupling is utilized to effect this result.
Inventors
- 👤 Joseph E. Kershaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:19
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/46
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
153 words
A multicoupler for coupling in the 30-76 MHz range and at power levels in the 100 watt range comprising: a plurality of not less than four variable frequency channels, each channel including an input/output terminal and being tunable to a particular band pass within said 30-76 MHz range; combiner circuit means including a common junction; each of said channels having a link coupler including an inductor coil from which energy is to be coupled and having a first terminal coupled to said input/output terminal and a second terminal connected to ground, a reactive link of a predetermined reactance having an input terminal and an output terminal positioned for close coupling with said inductor coil and means connecting said reactive link input terminal to said inductor coil at a point above ground to provide the desired coupling coefficient; and coaxial transformer means connecting the output terminl of said reactive link to said common junction.
Claim 2
Dependent Claim
153 words
A multicoupler for coupling in the 30-76 MHz range and at power levels in the 100 watt range comprising: a plurality of not less than four variable frequency channels, each channel including an input/output terminal and being tunable to a particular band pass within said 30-76 MHz range; combiner circuit means including a common junction; each of said channels having a link coupler including an inductor coil from which energy is to be coupled and having a first terminal coupled to said input/output terminal and a second terminal connected to ground, a reactive link of a predetermined reactance having an input terminal and an output terminal positioned for close coupling with said inductor coil and means connecting said reactive link input terminal to said inductor coil at a point above ground to provide the desired coupling coefficient; and coaxial transformer means connecting the output terminl of said reactive link to said common junction.
Claim 3
Dependent Claim
16 words
The multicoupler of claim 1 wherein said plurality of variable frequency channels include at least ten.
References Cited (Backward Citations)
US1978255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |