Closure Means Patents (Class 102/462)
  • Patent number: 10024639
    Abstract: The present invention concerns a cartridge for firearms comprising a cartridge case with a crown of wings. The wings themselves are fused or glued to one another so as to form an ogival closing element of the cartridge case. The invention also concerns the process for manufacturing the cartridge and the relative equipment.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 17, 2018
    Inventors: Stefano Veschi, Gianni Paci
  • Patent number: 8739703
    Abstract: A shotgun cartridge system includes a shotgun shell and a detachable cap. The cap fits within the casing atop the open end so as to close the casing and prevent the projectiles from falling out. An edge recess on the cap enables finger-nail removal of the cap. An injection port enables injection of a coating substance onto the projectiles. The inside wall of the casing may have a projection to snap connect the cap in the casing. The cap then has a mating projection recessed into the cap-wall and structured to snap in place below the projection on the casing when the cap-wall is slid into the casing. Alternatively, the projection is placed so as to form a thread around the inside wall and the cap's mating projection engages the thread when the cap-wall is slid, rotated and tightened against the thread.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: June 3, 2014
    Assignee: SS Associates, Trustee for SS CRT Trust
    Inventor: S. Mill Calvert
  • Patent number: 8627770
    Abstract: A cartridge assembly for large bore gun systems having an integrated retention assembly for maintaining propellant charges within the cartridge case. The cartridge case having an interior space for receiving propellant charges and an open proximate end through which the propellant charges can be fed. An insulating sleeve defining an interior channel is affixed to the cartridge case and extends out of the proximate end of the cartridge case. The interior channel serves as a chute through which propellant charges can be fed. After the propellant charges are loaded, the insulating sleeve is crimped closed to retain the propellant charges within the cartridge case. A closure plug can be inserted into the proximate end of the cartridge case after the insulating sleeve is crimped closed.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 14, 2014
    Assignee: BAE Systems Land & Armaments, L.P.
    Inventor: Gregg J. Severson
  • Patent number: 7712418
    Abstract: A closure wad is placed at the mouth of the launching end of a shotgun cartridge before the mouth is crimped down to seal the launching end of the cartridge. Both the walls of the closure cap and the walls at the mouth of the plastic envelope are crimped down together, thereby forming a substantially impermeable seal at the launching end of the cartridge. In addition, the inventive closure cap substantially reduces the detritus which is sometimes expelled when a launcher cartridge is fired.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 11, 2010
    Assignee: Combined Systems, Inc.
    Inventor: Michael Brunn
  • Patent number: 7607393
    Abstract: A shotshell of the type including a slug projectile includes a wad modified to include a central depression against which a light-weight ball is centered between the wad and the slug. The slug may include a similar depression such that the momentary connection between the wad, ball and slug may increase accuracy of the ammunition.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: October 27, 2009
    Assignee: Alliant Techsystems Inc.
    Inventor: James Y. Menefee
  • Patent number: 6988450
    Abstract: Anti-personnel tank fired ammunition designed for attacking personnel at various ranges includes a hollow base member adapted with an electric primer and a plastic or aluminum canister containing a payload at one end thereof. In operation, the hollow cartridge is loaded with a solid propellant. The electric primer which is centrally located in the solid propellant is fired and provides a flash together with the gasses needed to ignite the propellant. The burning propellant then provides the gasses needed to force the canister from the gun tube in which the ammunition is positioned.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: January 24, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Peter Georgantzis, Keith J. Martin, Andrew A. Molina, Andrew Gowarty, Anthony P. Farina, Henry E. Hudgins
  • Patent number: 6899034
    Abstract: A projectile is provided, in accordance with the present invention that includes a gas seal, a wad absorption zone, a core hull, a mass of projectile core particles within the hull and an actuator member. The hull is a cylindrical member having an open end and made from a material, such as soft plastic, that is characterized by the ability to peel back upon itself on impact, thereby releasing the mass of core particles after impact. The actuator, is releasably fixed to the hull open end, has an exterior side and an interior side and one or more stem members projecting into the mass of core particles. Upon impact, the actuator is released from the hull open end and continues to be propelled forward, along with the core particles. When the projectile impacts a target, the hull peels backward upon itself thereby releasing the actuator and the mass of projectile core particles.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: May 31, 2005
    Inventors: Charles H. Glover, Susan O. Hartley
  • Patent number: 6701848
    Abstract: An anti-personnel canister includes a generally cylindrical container having side walls, the side walls defining an enclosure with a generally concave surface at one end and an opening at another end; the side walls having an outer surface, the outer surface including a plurality of longitudinal grooves formed therein and, below the plurality of longitudinal grooves, a circumferential obturator groove; a plurality of submunitions disposed in the enclosure; a spacer disposed in the enclosure between the plurality of submunitions and the opening; and a cap disposed on the opening of the container, the cap having a top surface and including a pair of orthogonal grooves formed on the top surface.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 9, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Peter Georgantzis, Angel F. Paredes, Eric P. Scheper, Henry E. Hudgins
  • Patent number: 5410967
    Abstract: Rigid containers held assembled together form a dispenser from which chaff s dispersed by internally generated pressure when it exceeds a predetermined ejection level to displace and remove a sealing cap from a retention position causing rupture of an associated snap-lock, followed by controlled dispersal of the chaff.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: May 2, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Harvey L. Peritt
  • Patent number: 5138950
    Abstract: A moisture seal over shot wad for a roll crimped shotshell casing. The seal has a pair of spaced tubular flanges which comprise the rim portion of the disk shaped over shot wad. The tubular flanges are designed to receive the terminal end of the shotshell casing as the roll crimp is formed to frictionally engage the terminal end and seal the casing against the intrusion of moisture.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: August 18, 1992
    Assignee: Olin Corporaton
    Inventors: Robert J. Gardner, Morris C. Buenemann, Jr.
  • Patent number: 5121693
    Abstract: An increased volume shotshell having a biaxially oriented plastic tubular body has an end closure disk heat sealed to the open end of the shotshell eliminating the conventional star crimp closure. The increases volume results from making available the space normally taken up by the internal folds of the crimp. The end closure on the open end of the shotshell tube is fused to the tubular body to seal the shot load without destroying the biaxial orientation of the open end of the tubular body.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 16, 1992
    Assignee: Olin Corporation
    Inventor: Gregory R. Kosteck
  • Patent number: 4991512
    Abstract: A moisture seal is designed for a shotshell having a biaxially oriented plastic tubular body. The seal is a composite of a thermally conductive layer and a thermoplastic such as high density polyethylene laminated together. The rim portion of the inner layer of high density polyethylene is bonded or fused to the tubular body to seal the shot load end without destroying the biaxial orientation of the tubular body adjacent the rim portion. The moisture seal may be installed inside the tubular body and fused to the inside surface of the tubular wall or may be installed in place of or over the end closure and fused to the outside surface of the tubular body.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: February 12, 1991
    Assignee: Olin Corporation
    Inventor: Rodney Van Wyk
  • Patent number: 4815389
    Abstract: A shot cartridge suitable for use in automatic and semi-automatic pistols, characterized by a metal case terminated in a hemispherical crimp and a wad that expands to fill the barrel diameter of a pistol.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: March 28, 1989
    Assignee: Remington Arms Company
    Inventor: Joseph W. Jakonczuk
  • Patent number: 4803927
    Abstract: An improved telescoped ammunition round having a projectile comprising an aft recess to receive a booster tube that is affixed to the cartridge case and which remains stationary relative to the cartridge case throughout the firing sequence. The booster tube is provided with a primer to ignite the booster charge and is positioned within the projectile recess to initially propel the projectile and subsequently ignite the main propellant within the cartridge case after the projectile has been forced at least partially into the gun barrel.An improved method of manufacturing such an ammunition round utilizes an aluminum alloy seamless tube as a cartridge case and at least one case end seal. The seal is configured to have a unique angled slot and the case end is conically shaped by a mandrel to be press fit into the seal slot. Once mated in this fashion, the cartridge case and seal are firmly secured to each other.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: February 14, 1989
    Assignee: Aerojet-General Corporation
    Inventor: William J. Washburn
  • Patent number: 4742775
    Abstract: A power load for use with an underwater spear gun including a casing, explosive material within the casing, the casing having one closed end adapted to open when the explosive material explodes. The closed end is sealed with a sealing compound to prevent water from penetrating the casing. The closed end may be crimped closed or closed by means of a wad or plug of suitable material. The sealing compound may be a silicone rubber or polylvinylchloride which permeates the closed end.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: May 10, 1988
    Inventor: Paul C. Harris