Liquid propellant gun

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4941390
SERIAL NO

06178254

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A feature of this invention is the provision in an annular piston, annular control valve, liquid propellant gun, of a check valve to permit liquid propellant under relatively low pressure to flow from the supply system into the combustion chamber and to preclude the pulse of pressure generated in the combustion chamber from feeding back to the supply system. This valve allows propellant to be removed automatically from the pumping chamber in the event of a misfire. Another feature of this invention is the provision in an annular piston, annular control valve, liquid propellant gun of a frangible stem which secures the projectile to the cartridge case. The stem breaks to release the projectile for travel down the gun bore when a predetermined level of combustion gas pressure has been developed in the combustion chamber.

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Patent Owner(s)

Patent OwnerAddress
GENERAL DYNAMICS ARMAMENT SYSTEMS INC128 LAKESIDE AVENUE BURLINGTON VT 05401

International Classification(s)

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  • 1980 Application Filing Year
  • F41F Class
  • 60 Applications Filed
  • 1 Patents Issued To-Date
  • 1.67 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances198019811982198319841985198619871988198919900255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bulman, Melvin J Shelburne, VT 34 300

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Patent Citation Ranking

  • 3 Citation Count
  • F41F Class
  • 0 % this patent is cited more than
  • 35 Age
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