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US3572248A Expired / Lapsed US ⏱️ 0.0 years remaining

Ammunition for high firing rate hypervelocity gun

Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1969-01-28
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Granted: 1971-03-23
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Expires: 1989-01-28
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Abstract

Abstract BOOSTER AMMUNITION FOR A HIGH FIRING RATE HYPERVELOCITY GUN HAVING AT LEAST ONE BARREL, A PRIMARY BREECH MECHANISM AT THE BREECH END OF THE BARREL FOR SUCCESSIVELY TRANSPORTING PRIMARY AMMUNITION ROUNDS TO AND FIRING EACH ROUND IN FIRING POSITION TO EFFECT FORWARD PROPULSION OF ITS PROJECTILE THROUGH THE BARREL, AND AT LEAST ONE SECONDARY BREECH MECHANISM LOCATED AT A BOOSTER STATION ALONG THE BARREL FORWARDLY OF THE PRIMARY MECHANISM FOR SUCCESSIVELY TRANSPORTING THE BOOSTER AMMUNITION ROUNDS A FIRING POSITION SIMULTANEOUSLY WITH THE PRIMARY ROUNDS IS SUCH MANNER THAT THE PROPELLANT CHARGE IN EACH BOOSTER ROUND IS EXPOSED TO AND IGNITED BY THE PROPELLANT GAS GENERATED BY THE CORRESPONDING FIRED PRIMARY ROUND UPON FORWARD TRAVEL OF ITS PROJECTILE THROUGH THE RESPECTIVE BOOSTER STATION, THEREBY TO INCREASE THE PROPELLANT GAS PRESSURE BEHIND THE PROJECTILE AND ACCELERATE THE LATTER THROUGH THE BARREL.

Inventors

  • 👤 David Dardick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 02:01
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/02; F41A9/00; F41A9/38; F41A9/46; F42; F42B; F42B5/00; F42B5/02; F42B5/045

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) 1974-03-22 1974-09-21 1975-03-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-22 1978-09-21 1979-03-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-22 1982-09-21 1983-03-23 $7700.00 Window Closed / Lapsed

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