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Patent US4633359A successfully refreshed from Google Patents.
US4633359A
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Surge arrester for RF transmission line
Assignee: Corning Cable Systems Puerto Rico Inc
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Filing: 1984-09-27
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Granted: 1986-12-30
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Expires: 2004-09-27
Abstract
Abstract A surge arrester for coaxial RF transmission lines comprises a metal body having a longitudinal hole therethrough and having coaxial connectors. A gas discharge tube is orthogonally disposed and spring mounted between the center conductor and the metal body.
Inventors
- 👤 N. Peter Mickelson
- 👤 Edward H. Shively
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/42; H01R24/48; H01R2103/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A surge arrester for coaxial RF transmission lines comprising a metal body having a longitudinal hole therethrough and having a coaxial connector at each end of the metal body, a continuous smooth one-piece center conductor axially disposed in said hole and connected at its ends to said coaxial connectors, the center conductor being substantially cylindrical except for a flat surface at about its center, the center conductor having chamfers at its ends in order to minimize susceptance of the arrester, and a gas discharge tube orthogonally disposed and spring mounted between said center conductor and said metal body, the longitudinal hole having one diameter, the substantially cylindrical center conductor having another diameter, the ratio of the diameter of the center conductor to the diameter of the longitudinal hole being such as to provide a minimal VSWR value.
Claim 2
Dependent Claim
137 words
A surge arrester for coaxial RF transmission lines comprising a metal body having a longitudinal hole therethrough and having a coaxial connector at each end of the metal body, a continuous smooth one-piece center conductor axially disposed in said hole and connected at its ends to said coaxial connectors, the center conductor being substantially cylindrical except for a flat surface at about its center, the center conductor having chamfers at its ends in order to minimize susceptance of the arrester, and a gas discharge tube orthogonally disposed and spring mounted between said center conductor and said metal body, the longitudinal hole having one diameter, the substantially cylindrical center conductor having another diameter, the ratio of the diameter of the center conductor to the diameter of the longitudinal hole being such as to provide a minimal VSWR value.
Claim 3
Dependent Claim
30 words
The surge arrester of claim 1 wherein chamfers are provided on said center conductor surrounding the end of said gas discharge tube in order to minimize susceptance of the arrester.
Claim 4
Dependent Claim
25 words
The surge arrester of claim 1 wherein a substantially flat spring is disposed between one end of said gas discharge tube and said metal body.
Claim 5
Dependent Claim
11 words
The surge arrester of claim 1 wherein said ratio is 0.368.
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) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |