US4206332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial switch
Assignee: Tektronix Inc
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Filing: 1977-05-09
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Granted: 1980-06-03
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Expires: 1997-05-09
Abstract
Abstract A coaxial switch comprising a metallic cylindrical body and cover assembly having a metallic rotor disposed therein includes transmission line portions having a uniform constant impedance characteristic over the lengths thereof. Both double pole, double throw and single pole, multiple throw switch configurations may be provided. The rotor may be driven either manually or electrically.
Inventors
- 👤 Cornelis T. Veenendaal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:10
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/125
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
181 words
A coaxial switch, comprising: a cylindrical housing having a socket therein and a metallic end wall portion thereof; a metallic rotor mounted in said socket, said rotor and said end wall having matching planar faces transverse to the cylindrical axis of said switch; at least one substantially U-shaped transmission line segment disposed in said rotor such that the ends of said transmission line segment terminate at the planar face of said rotor; and at least two transmission line segments disposed in said end wall such that an end of each segment terminates at the planar face of said end wall, said transmission line segments in said end wall being adapted for electrical engagement with said transmission line segment in said rotor to provide a continuous conductive path through said switch, wherein all of said transmission line segments comprise channels having a uniform diameter inner wall over the length of said segments, a center conductor disposed along the central axis of each channel, and a dielectric between said center conductor and said inner wall, said dielectric having a uniform radial dielectric constant.
Claim 2
Dependent Claim
181 words
A coaxial switch, comprising: a cylindrical housing having a socket therein and a metallic end wall portion thereof; a metallic rotor mounted in said socket, said rotor and said end wall having matching planar faces transverse to the cylindrical axis of said switch; at least one substantially U-shaped transmission line segment disposed in said rotor such that the ends of said transmission line segment terminate at the planar face of said rotor; and at least two transmission line segments disposed in said end wall such that an end of each segment terminates at the planar face of said end wall, said transmission line segments in said end wall being adapted for electrical engagement with said transmission line segment in said rotor to provide a continuous conductive path through said switch, wherein all of said transmission line segments comprise channels having a uniform diameter inner wall over the length of said segments, a center conductor disposed along the central axis of each channel, and a dielectric between said center conductor and said inner wall, said dielectric having a uniform radial dielectric constant.
Claim 3
Dependent Claim
37 words
A coaxial switch in accordance with claim 1 wherein said transmission line segments disposed in said end walls include spring-loaded contacts coupled to the center conductors thereof for electrical engagement with the center conductors in said rotor.
Claim 4
Dependent Claim
32 words
A coaxial switch in accordance with claim 2 wherein the planar face of said rotor includes a non-conductive path for insulating said spring-loaded contacts as said rotor is rotated between switch positions.
Claim 5
Dependent Claim
19 words
A coaxial switch in accordance with claim 1 further including means for providing an indication of switch positions selected.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-03 | 1983-12-03 | 1984-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-03 | 1987-12-03 | 1988-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-03 | 1991-12-03 | 1992-06-03 | $7700.00 | Window Closed / Lapsed |