Ammunition Chutes Patents (Class 193/25AC)
  • Patent number: 5929366
    Abstract: A feed mechanism for use transferring linkless ammunition especially cased telescoped ammunition, from location to another, and simultaneously changing the orientation of its axis, comprising an Archimedes feed screw (11) and a cam track (14, 18, 17) located around the feed screw. Successive rounds (8) of ammunition are fed to the screw (11) so as to be received in the troughs of the screw thread. The cam track holds the rounds engaged within the troughs (15), while rotation of the screw advances the round along the cam track. The cam track is shaped so as to rotate the axis of successive rounds as they are advanced along its length to a discharge end.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: July 27, 1999
    Assignee: CTA International SAS
    Inventor: Michael G Kennedy
  • Patent number: 5782157
    Abstract: A storage and feed mechanism (10) stores ammunition (A) for a weapon (W) and facilitates feeding the ammunition to the weapon during firing. A magazine (12) comprises a storage chamber located adjacent the weapon and capable of storing a plurality of rounds of the ammunition. Individual rounds of ammunition are linked together on an ammunition belt (B) which carries the rounds to the weapon during firing. An ammunition feed (32) includes an inlet chute (33a) positioned above the magazine and allowing linked rounds of ammunition to be vertically extracted from the magazine thereby preventing tip-over and similar problems. The feed further includes a fixed fan section (32a) comprising a rigid chute through which the belt of ammunition is drawn. A sprocket drive (62) includes an appropriate gear (64) which engages the ammunition belt to draw the linked ammunition from the magazine up through the chute to the receiver.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: July 21, 1998
    Assignee: Esco Electronics Company
    Inventors: Thomas W. Ellington, Edward V. Carter
  • Patent number: 5471904
    Abstract: An ammunition feeder chute includes a plurality of unitary segments injection molded from a flexible thermoplastics material. The segments are articulated to one another in side-by-side relationship, and are interconnected by a cable which passes through a pair of apertures formed in opposed side walls of each segment. The opposed side walls are joined by an elongate base member which has a predetermined torsional flexure for facilitating overall torsional flexure of the feeder chute. Each segment is formed with complemental arcuate tab and recess formations for allowing pivoting of adjacent segments relative to one another.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: December 5, 1995
    Assignee: Denel (Proprietary) Limited
    Inventor: Gregory C. Armstrong
  • Patent number: 5245907
    Abstract: An automatic munition device, mobile in translation between a weapon and a fixed feeder, having means to transfer the munition in a path defined by an arc of a circle between the fixed feeder and the weapon, the munition being moved parallel to the fixed feeder and perpendicular to the translation motion of the munition. The feed device has a variable-pitch helical ramp having the same center as the center of the arc, one end of the ramp being integral with the weapon and the other end integral with the fixed feeder. The ramp also has guiding means to position the munition axially during feeding of the munition.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: September 21, 1993
    Assignee: GIAT Industries
    Inventor: Christian Gyre
  • Patent number: 5180879
    Abstract: The invention relates to an ammunition supply device for an automatic weapon that undergoes translational motion in relation to a fixed magazine. It comprises at least one slide fitted with gripping devices (9) for ammunition (11), and primary guide mechanisms (12,13) to bring the slide from a longitudinal position that is random in relation to the weapon to a longitudinal position that is predetermined in relation to the weapon.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: January 19, 1993
    Assignee: Giat Industries
    Inventors: Georges H. Simon, Patrice J. Pichot, Alain J. M. Boissau
  • Patent number: 4939978
    Abstract: A flexible ammunition chuting (14) for a machine gun (10) includes a flexible spine (26) made up of spring steel strips (27, 29) which are anchored at two spaced and fixed positions, typically at the chuting ends, so as precisely to define the length of the chuting. The chuting includes relatively articulated links (20), which are able to follow convex and concave bends and to twist torsionally, but the spine (26) prevents the overall stretching or collapse of the links, which might result in ammunition belt misfeed or jamming.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: July 10, 1990
    Assignee: Lucas Industries Public Limited Co.
    Inventors: Frederick J. Bishop, David T. Cooper, William H. Hill
  • Patent number: 4762049
    Abstract: A belt of linked cartridges is supplied to a traversable gun by way of flexible chutes, one of which is secured at its respective ends to a relatively fixed part and to a structure which is traversable with the gun. The chute so secured has a loop which rests on a support element and is of sufficient length to accommodate the full range of traverse of the gun.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: August 9, 1988
    Assignee: Lucas Industries plc
    Inventor: Rodney V. Hughes
  • Patent number: 4669355
    Abstract: The disc-type ammunition channel contains a predetermined number of discs or lamellae arranged adjacent one another and which can be rotated in a substantially cylindrical housing. The diameter of the discs or lamellae and of the cylindrical housing is smaller than the length of the cartridges to be passed therethrough. The tip ends of the projectiles of the cartridges protrude from the discs or lamellae into a housing member which is formed by two substantially helically shaped walls and a substantially cylindrical wall. Rotation of the discs or lamellae as a function of the elevation of the firing weapon is insured by a rod which is secured at one of its ends to a stationary housing member and at the other one of its ends to an elevatable housing member by means of rubber joints. The rod extends through elongated or oblong slots provided in the discs.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: June 2, 1987
    Assignee: Oerlkon-Buhrle AG Werkzeugmaschinenfabrik
    Inventors: Samuel Schmid, Herbert Riedlinger
  • Patent number: 4660704
    Abstract: A link guide chutes for a weapon system including a main gun using link fed ammunition and a co-axially mounted machine gun mounted in a turret rotatably positionable in an armored vehicle. The spent links for the main gun and the spent machine gun links and brass are ejected through the trunnion bearing on which the rotor for the main gun rotates and into a compartment which communicates with the exterior of the vehicle. The link guide chutes for the main gun, which can be a dual fed 25 millimeter gun, include guide strips for guiding the tab members of the links through the chute channels and thereby preventing jamming.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: April 28, 1987
    Assignee: General Motors Corporation
    Inventor: Richard S. LeBlanc
  • Patent number: 4416184
    Abstract: An ammunition channel or chute is disclosed which is constituted by a multiplicity of juxtapositioned or adjacently arranged lamellae or plate-like elements which are interconnected by elastic elements. These plate-like elements are pivotally arranged between two end parts upon a shaft which is coaxially arranged with respect to the elevation axis of the weapon. The pivoting of one of the end parts, corresponding to the weapon elevation, is uniformly transmitted by means of the resiliently arranged elastic elements to the individual plate-like elements, so that there is ensured for a precise infeed of ammunition throughout each elevation angle of the weapon.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: November 22, 1983
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG
    Inventor: Erich Jenny
  • Patent number: 4338851
    Abstract: A cartridge belt guiding mechanism for automatic weapons disposed between the outlet of an ammunition belt storage container and the ammunition belt inlet of the automatic weapon. The guiding mechanism is composed of a plurality of open frame-like elements. Each element has a plurality of pins extending from opposite faces thereof. Coil springs are mounted on the pins and are connected to confronting faces of the frame-like elements. The coil springs define a flexible guide channel adapted slidingly guide therethrough the cartridges of the ammunition belt. The end elements of the channel are respectively connected to the outlet of the ammunition belt storage container and the ammunition belt inlet of the automatic weapon.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: July 13, 1982
    Assignee: Rheinmetall GmbH
    Inventors: Clemens Bremer, Horst Menges
  • Patent number: 4301711
    Abstract: A flexible ammunition channel comprising a multiplicity of elements connected with one another by hinges or pivots. The side walls of the ammunition channel, which are directed perpendicular to the bending plane of such ammunition channel, are constituted by flexible guide elements extending through the individual elements of the ammunition channel. The ammunition is precisely guided with small resistance against forward feed or advance thereof.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: November 24, 1981
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG
    Inventors: Alfred Vonlanthen, Heinz Lienhard
  • Patent number: 4036102
    Abstract: A cartridge belt guide for an ammunition box that clamps to an edge portion of the box and has a curved guide surface held in overextending relation to such edge. The guide surface is positioned for sliding contact with the cartridge belt to facilitate withdrawal thereof from the ammunition box without snagging on the edge of the box.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: July 19, 1977
    Inventors: Gary J. Marrotte, H. Christopher Mulder