US3783419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonator for gyromagnetic-resonance spectrometer
Assignee: Thales SA
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Filing: 1972-05-12
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Granted: 1974-01-01
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Expires: 1992-05-12
Abstract
Abstract In order to avoid disturbing the tuning of a resonator, formed by an essentially capacitive line and an essentially inductive Lecher line connected in series, when the sample is introduced into the resonator, the capacitive line is a coaxial line section, the inner conductor of which forms a shield against the electric field due to this line. Alternately the first capacitive line also is Lecher line but a metal tube protects the space containing the sample from the electric field due to this line.
Inventors
- 👤 C Lafond
- 👤 J Dunand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/32; G01R33/34; G01R33/345; G01R33/42; G01R33/422; H; H01; H01P; H01P7/00; H01P7/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
A resonator for gyromagnetic resonance spectrometers comprising a cylindrical volume for receiving a sample, said cylindrical volume comprising in the axial direction first and hollow second parts; said resonator comprising serially connected first and second lines, said first line being essentially capacitive, and said second line being an essentially inductive Lecher line having a higher characteristic impedance than said first line; said first line having two conductors arranged outside and at the level of said first part; said second line having two conductors arranged outside and at the level of said second part; said first part being shielded, at least in the vicinity of said second part, from the electric field due to said first line.
Claim 2
Dependent Claim
116 words
A resonator for gyromagnetic resonance spectrometers comprising a cylindrical volume for receiving a sample, said cylindrical volume comprising in the axial direction first and hollow second parts; said resonator comprising serially connected first and second lines, said first line being essentially capacitive, and said second line being an essentially inductive Lecher line having a higher characteristic impedance than said first line; said first line having two conductors arranged outside and at the level of said first part; said second line having two conductors arranged outside and at the level of said second part; said first part being shielded, at least in the vicinity of said second part, from the electric field due to said first line.
Claim 3
Dependent Claim
39 words
A resonator according to claim 1 , wherein said first line is a coaxial line having an inner and an outer conductor, the gap separating the two conductors of the coaxial line being small in relation to their radii.
Claim 4
Dependent Claim
54 words
A resonator according to claim 2 , wherein the outer conductor of said coaxial line comprises a gap, peripherally insulating a small portion of this conductor from the remainder thereof, and wherein the output of said resonator consists of two wires, one being linked to said small portion and the other to said remainder.
Claim 5
Dependent Claim
37 words
A resonator according to claim 2 , further comprising a third line, which is a coaxial line having two ends, and which is connected at one end to said second line and short-circuited at its other end.
Claim 6
Dependent Claim
56 words
A resonator according to claim 1 , wherein said first line is a Lecher line, whose two conductors have cross-sections in the form of arcs of circles with angular values little below 180*, said resonator further comprising a cylindrical metal tube located inside the cylindrical space substantIally defined by the two conductors of said first line.
References Cited (Backward Citations)
FR945399A
Cited
US2601445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |