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US3098447A Expired / Lapsed US ⏱️ 0.0 years remaining

Projectiles to be slidably fitted on the end of a gun barrel

Assignee: Brevets Aero Mecaniques SA
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Filing: 1961-04-27
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Granted: 1963-07-23
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Expires: 1981-04-27
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Abstract

No abstract record available.

Inventors

  • 👤 Hosli Hansjakob

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:32
CPC Classifications
F; F42; F42B; F42B15/00; F42B30/00; F42B30/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 328 words
A PROJECTILIE ADAPTED TO BE LAUNCHED FORM A GUN BARREL HAVING A CYLINDRICAL SURFACE BY THE PRESSURE CREATED FROM A PROPELLING CHARGE IN THE GUN, THE GUN BARREL BEING OF THE TYPE WHICH INCLUDES AT LEAST ONE PASSAGE THROUGH ITS WALL IN THE VICINITY OF THE MUZZLE, WHICH PROJECTILE COMPRISES; A BODY PORTION, A TUBULAR TAIL HAVING ITS FRONT END FIXED TO SAID BODY PORTION, SAID TUBULAR TAIL HAVING A CYLINDRICAL SURFACE ADAPTED TO SLIDABLY AND SUBSTANTIALLY SEALINGLY ENGAGE SUCH A CYLINDRICAL SURFACE OF THE GUN FROM WHICH THE PROJECTILE IS TO BE FIRED, A ROCKET MOTOR CARRIED BY SAID BODY PORTION, SAID ROCKET MOTOR COMPRISING A REACTION CHARGE AND A REARWARDLY DIRECTED NOZZLE OPENING INTO A SAID TUBULAR TAIL AT THE FORWARD END THEREOF, AND MEANS FOR CAUSING SAID PROJECTILE TO SPIN ABOUT ITS LONGITUDINAL AXIS, FRIST BY UTILIZING THE ACTION OF PRESSURIZED GASES FROM THE COMBUSTION OF A PROPELLING CHARGE IN A LAUNCHING GUN AND THEN BY UTILIZING THE REACTION EFFECT OF PRESSURIZED GASES FROM THE COMBUSTION OF SAID REACTION CHARGE, SAID MEANS COMPRISING AT LEAST TWO TRANSVERSE NOZZLES EXTENDING THROUGH THE WALL OF SAID TUBULAR TAIL REARWARDLY OF THE MOST REARWARD EXTENSION OF SAID BODY PORTION, WHEREBY GASES ISSUING THROUGH SAID TRANSVERSE NOZZLES HAVE FREE ACCESS TO THE SURROUNDING ATMOSPHERE WHEN SAID TRANSVERSE NOZZLES ARE CLEAR OF A GUN BARREL FROM WHICH THE PROJECTILE IS TO BE LAUNCHED, SAID TUBULAR TAIL PROVIDING A CONTINUOUSLY OPEN PATH BETWEEN THE REAR END OF THE TAIL AND THE ROCKET MOTOR NOZZLE WHEREBY HOT GASES CREATED BY THE COMBUSTION OF A PROPELLING CHARGE IN A GUN FROM WHICH THE PROJECTILE IS TO BE LAUNCHED MAY PASS THROUGH THE TUBULAR TAIL AND THE ROCKET MOTOR NOZZLE TO IGNITE SAID REACTION CHARGE, AT LEAST ONE OF SAID TRANSVERSE NOZZLES BEING PHYSICALLY LOCATED SO AS TO BE SELECTIVELY COMMUNICABLE WITH THE PASSING THROUGH THE BARREL WALL IN THE VICINITY OF THE GUN BARREL MUZZLE WHEN THE PROJECTILE IS MOUNTED ON THE BARREL.
Claim 2
Dependent Claim 328 words
A PROJECTILIE ADAPTED TO BE LAUNCHED FORM A GUN BARREL HAVING A CYLINDRICAL SURFACE BY THE PRESSURE CREATED FROM A PROPELLING CHARGE IN THE GUN, THE GUN BARREL BEING OF THE TYPE WHICH INCLUDES AT LEAST ONE PASSAGE THROUGH ITS WALL IN THE VICINITY OF THE MUZZLE, WHICH PROJECTILE COMPRISES; A BODY PORTION, A TUBULAR TAIL HAVING ITS FRONT END FIXED TO SAID BODY PORTION, SAID TUBULAR TAIL HAVING A CYLINDRICAL SURFACE ADAPTED TO SLIDABLY AND SUBSTANTIALLY SEALINGLY ENGAGE SUCH A CYLINDRICAL SURFACE OF THE GUN FROM WHICH THE PROJECTILE IS TO BE FIRED, A ROCKET MOTOR CARRIED BY SAID BODY PORTION, SAID ROCKET MOTOR COMPRISING A REACTION CHARGE AND A REARWARDLY DIRECTED NOZZLE OPENING INTO A SAID TUBULAR TAIL AT THE FORWARD END THEREOF, AND MEANS FOR CAUSING SAID PROJECTILE TO SPIN ABOUT ITS LONGITUDINAL AXIS, FRIST BY UTILIZING THE ACTION OF PRESSURIZED GASES FROM THE COMBUSTION OF A PROPELLING CHARGE IN A LAUNCHING GUN AND THEN BY UTILIZING THE REACTION EFFECT OF PRESSURIZED GASES FROM THE COMBUSTION OF SAID REACTION CHARGE, SAID MEANS COMPRISING AT LEAST TWO TRANSVERSE NOZZLES EXTENDING THROUGH THE WALL OF SAID TUBULAR TAIL REARWARDLY OF THE MOST REARWARD EXTENSION OF SAID BODY PORTION, WHEREBY GASES ISSUING THROUGH SAID TRANSVERSE NOZZLES HAVE FREE ACCESS TO THE SURROUNDING ATMOSPHERE WHEN SAID TRANSVERSE NOZZLES ARE CLEAR OF A GUN BARREL FROM WHICH THE PROJECTILE IS TO BE LAUNCHED, SAID TUBULAR TAIL PROVIDING A CONTINUOUSLY OPEN PATH BETWEEN THE REAR END OF THE TAIL AND THE ROCKET MOTOR NOZZLE WHEREBY HOT GASES CREATED BY THE COMBUSTION OF A PROPELLING CHARGE IN A GUN FROM WHICH THE PROJECTILE IS TO BE LAUNCHED MAY PASS THROUGH THE TUBULAR TAIL AND THE ROCKET MOTOR NOZZLE TO IGNITE SAID REACTION CHARGE, AT LEAST ONE OF SAID TRANSVERSE NOZZLES BEING PHYSICALLY LOCATED SO AS TO BE SELECTIVELY COMMUNICABLE WITH THE PASSING THROUGH THE BARREL WALL IN THE VICINITY OF THE GUN BARREL MUZZLE WHEN THE PROJECTILE IS MOUNTED ON THE BARREL.

References Cited (Backward Citations)

FR502560A Cited
US1721704A Cited
US2507878A Cited
US2946261A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-07-22 1967-01-21 1967-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-07-22 1971-01-21 1971-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-07-22 1975-01-21 1975-07-23 $7700.00 Window Closed / Lapsed

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