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US3564277A Expired / Lapsed US ⏱️ 0.0 years remaining

Coaxial line reed switch fast rise signal generator with attenuation means forming outer section of the line

Assignee: Unisys Corp
•
Filing: 1969-08-25
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Granted: 1971-02-16
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Expires: 1989-08-25
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Abstract

Abstract A hollow cylinder of electromagnetic energy-absorbing material forms a portion of the outer conductor of a coaxial transmission line, the portion encompassing a mercury-wetted, magnetic field operated, reed switch that joins center conductor portions of input and output coaxial lines. When actuated by an externally generated magnetic field, the reed switch is operated to cause a relatively undistorted, sharp voltage step signal to flow along the output coaxial line.

Inventors

  • 👤 Hugh C Maguire

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:26
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/125

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 126 words
In a coaxial transmission line system, switch means for launching a traveling steP wave in said coaxial transmission line system, said switch means having at least two possible states, said switch means being adapted, in one of said states, to form a portion of a continuous inner conductor of said coaxial transmission line system, said switch means being characterized by impedance perturbations capable of causing undesirable distortion of said step wave, tubular means encompassing said switch means and forming a portion of said coaxial transmission line system, the portion of said tubular means adjacent said switch means being formed of material for reducing the said undesirable distortion of said step wave, and means coupled to said switch means for changing the state of said switch means.
Claim 2
Dependent Claim 126 words
In a coaxial transmission line system, switch means for launching a traveling steP wave in said coaxial transmission line system, said switch means having at least two possible states, said switch means being adapted, in one of said states, to form a portion of a continuous inner conductor of said coaxial transmission line system, said switch means being characterized by impedance perturbations capable of causing undesirable distortion of said step wave, tubular means encompassing said switch means and forming a portion of said coaxial transmission line system, the portion of said tubular means adjacent said switch means being formed of material for reducing the said undesirable distortion of said step wave, and means coupled to said switch means for changing the state of said switch means.
Claim 3
Dependent Claim 24 words
Apparatus of the kind described in claim 1, wherein said switch means comprises a glass encapsulated, normally open, single pole, single throw, reed switch.
Claim 4
Dependent Claim 29 words
Apparatus of the kind described in claim 2, wherein said means coupled to said switch means for changing the state of said switch means comprises magnetic field generating means.
Claim 5
Dependent Claim 35 words
Apparatus of the kind described in claim 1, wherein said material for reducing the said distortion of said step wave is selected from the class of solid materials capable of converting electromagnetic energy into heat.
Claim 6
Dependent Claim 22 words
Apparatus of the kind described in claim 1, wherein said material for reducing the said distortion of said step wave is carbon.
Claim 7
Dependent Claim 51 words
Apparatus of the kind described in claim 1, wherein said portion of said tubular means adjacent said switch means for reducing said undesired distortion of said step wave lies concentrically about said switch means and is longer than the distance between the two most separated impedance discontinuities of said switch means.
Claim 8
Dependent Claim 31 words
Apparatus of the kind described in claim 1, wherein substantially all of said impedance perturbations in said coaxial line transmission system are disposed within said tubular means encompassing said switch means.
Claim 9
Dependent Claim 147 words
A transmission line device including first, second, and third transmission line portions, said first and third transmission line portions each having center conductors, said second transmission line portion including switch means with first and second electrodes means said first electrode means being conductively connected to said center conductor of said first transmission line portion, said second electrode means being conductively connected to said center conductor of said third transmission line portion, tubular electromagnetic energy absorbing means encompassing said switch means and being adapted for absorbing substantially all undesired electromagnetic energy tending to distort energy propagated in said transmission line device, said energy absorbing means forming, along with the outer conductors of said first and third transmission line portions, the outer conductor for a continuous coaxial transmission line device for transmission therethrough of desired electromagnetic energy in coaxial transmission line mode, and means for actuating said switch means.
Claim 10
Dependent Claim 147 words
A transmission line device including first, second, and third transmission line portions, said first and third transmission line portions each having center conductors, said second transmission line portion including switch means with first and second electrodes means said first electrode means being conductively connected to said center conductor of said first transmission line portion, said second electrode means being conductively connected to said center conductor of said third transmission line portion, tubular electromagnetic energy absorbing means encompassing said switch means and being adapted for absorbing substantially all undesired electromagnetic energy tending to distort energy propagated in said transmission line device, said energy absorbing means forming, along with the outer conductors of said first and third transmission line portions, the outer conductor for a continuous coaxial transmission line device for transmission therethrough of desired electromagnetic energy in coaxial transmission line mode, and means for actuating said switch means.

References Cited (Backward Citations)

CA602303A Cited
US3002166A Cited
US3328678A Cited
US3483418A Cited
US3333119A Cited
US3484619A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-15 1974-08-17 1975-02-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-15 1978-08-17 1979-02-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-15 1982-08-17 1983-02-16 $7700.00 Window Closed / Lapsed

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