US3908176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic isolator for a frequency range of 40 to 900 MHZ
Assignee: Government of Netherlands
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Filing: 1974-03-07
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Granted: 1975-09-23
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Expires: 1994-03-07
Abstract
Abstract Two tubular capacitors which are of substantially the same diameter and are axially spaced with respect to each other, form part of a coaxial transmission line in such a way that one of the capacitors is connected to the inner conductor of the coaxial line, which inner conductor extends through the second capacitor, and the outer conductor of the coaxial line narrows conically between the two capacitors to the diameter of the second capacitor and then widens conically after the second capacitor.
Inventors
- 👤 Boer Edward-Tjitze Onno De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:41
CPC Classifications
H; H03; H03H; H03H1/00; H03H1/0007
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A galvanic isolator for a coaxial transmission line for a frequency range of 40 to 900 MHz, comprising: two tubular capacitors, which are axially in line with each other and form part of said coaxial line, one of the capacitors being connected to the inner conductor of the coaxial line, which inner conductor extends through the other capacitor, and the other of said capacitors being connected to the outer conductor of the coaxial line, the connection to the other capacitor comprising conductor cones that taper inwardly from the spaced ends of the outer conductor.
Claim 2
Dependent Claim
94 words
A galvanic isolator for a coaxial transmission line for a frequency range of 40 to 900 MHz, comprising: two tubular capacitors, which are axially in line with each other and form part of said coaxial line, one of the capacitors being connected to the inner conductor of the coaxial line, which inner conductor extends through the other capacitor, and the other of said capacitors being connected to the outer conductor of the coaxial line, the connection to the other capacitor comprising conductor cones that taper inwardly from the spaced ends of the outer conductor.
Claim 3
Dependent Claim
38 words
A galvanic isolator according to claim 1, wherein one capacitor has an outer coating, and wherein the connection between the inner conductor of the coaxial line and the outer coating of said one capacitor comprises a diametrical wire.
Claim 4
Dependent Claim
127 words
A galvanic isolator for frequencies between about 40 and 900 megacycles and for connecting adjacent spaced ends of a coaxial transmission line having inner and outer concentric conductors, said isolator comprising: a. two substantially equal sized tubular capacitors having inner and outer conductive surfaces and being axially spaced and located concentrically between said inner and outer conductors, b. one of said capacitors bridging the spaced ends of said inner conductor and having its inner and outer conductive surfaces respectively connected to the spaced ends of said inner conductor, and c. the other of said capacitors bridging the spaced ends of said outer conductor of said line and having its inner and outer conductive surfaces respectively connected by conical conductors to the spaced ends of said outer conductor.
Claim 5
Dependent Claim
127 words
A galvanic isolator for frequencies between about 40 and 900 megacycles and for connecting adjacent spaced ends of a coaxial transmission line having inner and outer concentric conductors, said isolator comprising: a. two substantially equal sized tubular capacitors having inner and outer conductive surfaces and being axially spaced and located concentrically between said inner and outer conductors, b. one of said capacitors bridging the spaced ends of said inner conductor and having its inner and outer conductive surfaces respectively connected to the spaced ends of said inner conductor, and c. the other of said capacitors bridging the spaced ends of said outer conductor of said line and having its inner and outer conductive surfaces respectively connected by conical conductors to the spaced ends of said outer conductor.
Claim 6
Dependent Claim
30 words
A galvanic isolator according to claim 3 wherein said one capacitor has its inner conductive surface connected to one end of said inner conductor by means of a conical conductor.
Claim 7
Dependent Claim
30 words
A galvanic isolator according to claim 3 wherein said one capacitor has its outer conductive surface connected to one end of said inner conductor by means of a diametrical wire.
Claim 8
Dependent Claim
45 words
A galvanic isolator according to claim 3 wherein said connections and capacitors are surrounded by a chamber electrically connected to one of said spaced ends of said outer conductor and insulated from the other spaced end of said outer conductor of said coaxial transmission line.
References Cited (Backward Citations)
US3098230A
Cited
US3393384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |