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US3706050A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetohydrodynamic gas dynamic laser

Assignee: United States Department of the Army
•
Filing: 1971-11-02
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Granted: 1972-12-12
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Expires: 1991-11-02
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Abstract

Abstract A PULSED GAS LASER UTILIZES CONTINUOUSLY EXPANDING GASES THAT PASS THROUGH THE LASING CHAMBER AND SUBSEQUENTLY GENERATE A DIRECT CURRENT, PULSED ELECTRIC OUTPUT WHICH IS FED BACK TO STIMULATE LASER EMISSION. A CONVENTIONAL GAS BURNER AND NOZZLE ASSEMBLY COUPLE FLOWING GASES INTO A STANDARD LASER CAVITY. GASES LEAVING THE LASER CAVITY PASS BETWEEN POLES OF AN MHD MAGNET, GENERATING OUTPUT ELECTRIC POWER WHICH IS TRANSFORMED INTO HIGH VOLTAGE PULSES OF OUTPUT POWER. AN ALKALI METAL COMPONENT IS INTRODUCED INTO THE SYSTEM BEFORE THE FLOWING GASES REACH THE MHD MAGNET FOR INCREASING ELECTRICAL CONDUCTIVITY OF THE GAS THEREIN AND THEREBY ENHANCING LARGE PULSES OF ELECTRICAL ENERGY FEEDBACK FOR STIMULATING ADDITIONAL LASER ACTION.

Inventors

  • 👤 Charles M Cason

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 00:32
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/097; H01S3/0979

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1975-12-12 1976-06-12 1976-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-12 1980-06-12 1980-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-12 1984-06-12 1984-12-12 $7700.00 Window Closed / Lapsed

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