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Class 89/1.703 - Having pressure-control means


Subclass of Class 89 - Ordnance
Definition: A gun in which the means to neutralize the pressurized gas
No. of patents: 22
Last issue date: 04/08/2008


NumberTitleIssue Date
7353739Arrangement for weapon
An arrangement for a weapon including a countermass for reducing the pressure around the weapon. The countermass is enclosed in a countermass container that can be opened at both ends. The invention aims to bring about a symmetrical opening with favorable recoil in ...
04/08/2008
7299737Method and apparatus for an action system for a firearm
A method and apparatus providing an action system for a firearm. The action system includes a primary roller-lock mechanism located rearward of an ejection port. The primary roller-lock mechanism includes a bolt and a first primary roller caged within the bolt. A bo...
11/27/2007
7207130Over-and-under shotgun apparatus and method
An over-and-under shotgun apparatus includes a radius track which serves as a hinge for articulating the barrel portion of the shotgun apparatus relative to the receiver/stock portion of the shotgun apparatus. The radius track is defined by a female or concave porti...
04/24/2007
7191693Arrangement for weapon
An arrangement for a weapon including a countermass for reducing the pressure around the weapon. The countermass is enclosed in a countermass container with an openable cover provided with break indications. The arrangement brings about a symmetrical opening operati...
03/20/2007
6964220Floating barrel handgun method of recoil elimination
A floating barrel gun design, a design in which a propellant gas discharge is used to counterbalance the recoil force of the gun, has been improved to include a novel automatic mechanical mechanism which allows the floating or inner barrel to be held stationary with...
11/15/2005
6460446Sonic rarefaction wave recoilless gun system
A low recoil and low bore heat gun system provides a delayed pressure release mechanism for fired propellant charges in the rear gun barrel section. The delayed pressure release of the exhaust gases causes a sonic rarefaction wave along the length of the ...
10/08/2002
6044746Projectile propulsion assembly that limits recoil force
The present invention relates to a projectile propulsion assembly of the type comprising a chamber housing a pressure source. The chamber which houses the pressure source communicates with at least one pipe placed inside the launch tube and having bores d...
04/04/2000
5837919Portable launcher
A launcher is disclosed having means for directing and concentrically spreading, as well as dispersing, exhaust gases created by an internal combustion of an object, such as a missile, that is operatively launchable therefrom. The concentric duct provides...
11/17/1998
5357841Recoilless projectile launcher
A projectile launcher and in particular a mass/countermass projectile launcher in which the piston intercept(s) comprises a braking collar (8) made of a material which exhibits constrained progressive crushing. When a projectile (18) is fired the launchin...
10/25/1994
5076136Electromagnetic launcher system
Electromagnetic launcher apparatus which includes a set of projectile rails and a set of switch rails both lying along a common longitudinal axis. An armature assembly includes at one end thereof a switching armature for conduction of current between the ...
12/31/1991
5054224Apparatus and method for a composite polymer rifling disposable gun tube
An apparatus and method for producing a disposable composite laminate gun th polygon rifling and integrally fabricated conically shaped chamber section. A polygonal shaped barrel mandrel is joined with a radial segmented chamber mandrel, wound with altern...
10/08/1991
4962689Gas generator missile launch system
A missile launching system with an open-ended cylindrical container (10) having a bore in which a slidable piston (20) is located between the missile (12) and a gas generator (14) adjacent the container aft end (16). The piston (20) area is substantially ...
10/16/1990
4676136Apparatus for recoilless firing of projectiles from a lauching tube
An apparatus for recoilless firing of projectiles from a launching tube comprises within the launching tube a forward brake ring, a forward sabot, a propellant charge with an ignition element or screw, a rear sabot, a counter-mass, and a rear brake ring, ...
06/30/1987
4452124Stabilizing tab for missile launcher
A launch tube (2) for launching a missile (4) is supported by a single base (6) which enables the tube (2) to pivot about orthogonal yaw and pitch axes. An aerodynamic stabilizing trim tab (20) is positioned within the interior rear of the launch tube (2)...
06/05/1984
4404887Recoil reducer
A missile launcher tube from which a missile is fired from a forward end causing gases to exit out the aft, or exhaust gas, end of a launcher tube in which the aft end is provided with a conical surface (flare) forming a nozzle so that as the missile exit...
09/20/1983
4327624Tip off rate reducer
Disclosed is a launcher-missile system with the launcher tube provided with a configuration on its aft end so as to reduce the tip-off rates of the system. The configuration comprises the formation of an open sector in the flared end of the launcher tube ...
05/04/1982
4203347Shock suppressing apparatus and method for a rocket launcher
A shock suppressing device adapted to be attached to the aft end of a shoulder-fired rocket launcher. The device comprises a cylindrical housing defining a substantially enclosed expansion chamber having a diameter and cross-sectional area greater than th...
05/20/1980
4141275Afterburner recoilless rifle
Rearwardly exhausted powder gases from a recoilless rifle are combined with ir and combusted in an afterburner that is attached to the rifle. Thrust produced by the combustion is utilized to assist in counter-recoil....
02/27/1979
4091709Recoilless rifle nozzle
A plate having a plurality of small openings therein mounted to the exit t of a recoilless weapon for reducing the depth of penetration of the disturbed gas field without significantly effecting the recoil reduction characteristics of the weapon....
05/30/1978
4043248Liquid propellant gun (recoilless regenerative piston)
A liquid propellant gun has a combustion chamber which receives liquid propellant from a differential piston operating in a supply chamber, has a gun barrel for the discharge of a projectile, and a balancing nozzle for the discharge of combustion gas. The...
08/23/1977
4026189Projectile locking device
The invention provides a projectile locking device for a recoilless weapon whereby the projectile is positively locked in a position within the barrel of the weapon so that the projectile cannot be displaced therefrom, for example, in the event that the w...
05/31/1977
3946637Mortar with variable vent for adjusting velocity of a single charge cartridge
A variably adjusted vent communicates with the interior of a mortar tube. adjusting the vent setting, the velocity of a single charge cartridge can be varied. In one embodiment of the invention, the vent discharge is exhausted below the base plate of the...
03/30/1976
 
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