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Class 89/17 - BREECH CLOSURES


Subclass of Class 89 - Ordnance
Definition: The breech-block, its operating mechanism, or the means
No. of patents: 21
Last issue date: 03/27/2012


NumberTitleIssue Date
8141469Quick-release spindle for gun tube
The breech end of a gun may include a quick-release spindle assembly. A carrier may have a locking collar rotatably disposed therein. The locking collar may have a through-bore and one or more projections extending into the through-bore. The locking collar may be ro...
03/27/2012
7637197Weapon with breach mechanism
It is proposed that a loading chamber of a weapon with a breech mechanism no longer be part of a cannon tube but rather that it form, together with a breechblock, a unit, which additionally contains a device for firing ammunition and which can move relative to the b...
12/29/2009
7594465In bore air regulation system
A weapon system having a gun barrel and an in bore air regulation system. The gun barrel has a first end and a second end. The gun barrel has a bore formed therein that extends from the first end towards the second end. The bore is adapted to receive a round. The in...
09/29/2009
7331135Internally asymmetrical bolt carrier
A bolt locking housing (16) on a gun, behind the chamber (4) thereof, for receiving a bolt (6) including an extractor (10) having an extractor hook that grips a corresponding extractor groove (21) of a cartridge (2) within s...
02/19/2008
7316091Firearm bolt carrier with mechanical/gas key
A firearm includes a barrel having an end coupled to a receiver. A reciprocating bolt carrier is carried by the receiver and movable between a locked position and an unlocked position. The bolt carrier includes a buttress formed in a top surface thereof. A key inclu...
01/08/2008
7296506Make-break devices
A make-break device includes a first component having at least one engaging member, the engaging member presenting first and second orthogonally disposed edges, each edge being defined at the intersection of a respective pair of chamfered face and a second component...
11/20/2007
7243589Variable volume chamber cannon
An assembly for effecting a variable volume chamber for use in a cannon having a breech assembly operably coupled to a chamber, and includes the chamber having a certain size being partially defined by a constant diameter for a known depth dimension and having a kno...
07/17/2007
7039088Enhancement of chemical lasers via control of the ambient radiation environment
A system and method for obtaining improved performance of chemical laser systems by exercising control over the radiation environments of these devices. Proper control of the AERE is achieved through the control of the wall construction including the choice of mater...
05/02/2006
6571676Compact artillery
A gun system has a two piece cannon assembly that is separated between a removable chamber instead of a traditional breech, and a projectile forcing cone. The chamber has a plug at one end that can accommodate any type of ignition system, and the other en...
06/03/2003
6212989High pressure, high temperature window assembly and method of making the same
A window assembly for transmitting light into and from a vessel containing a high pressure, high temperature, highly reactive environment includes a truncated conical window which is substantially transparent to radiation, a truncated conical metal seal w...
04/10/2001
6186041Breechblock opening and closing device for a large-caliber weapon
A weapon includes a barrel; a breech ring attached to a rearward end of the barrel; a groove provided in the breech ring; a movable breechblock mounted in the breech ring and having open and closed positions; a slide mounted in the breech ring and being g...
02/13/2001
6006645Externally driven transverse wedge-type breechblock for a large-caliber weapon
A large-caliber weapon includes a barrel having a longitudinal barrel axis; a cradle supporting the barrel; a breech ring mounted on an end of the barrel; a breech wedge disposed in the breech ring for linear displacements transversely to the barrel axis;...
12/28/1999
5877696Security system for warheads
A weapons security system composed of containers for storage of warheads or warhead material. The containers are equipped to detect breaches in the enclosure walls and to transmit an alarm signal in the event of a breach. The alarm signal is received by a...
03/02/1999
5663519Breech for a gun which is able to operate with two different breech blocks
A modular concept for a gun which uses a breech conversion kit allows the firing of cased and caseless ammunition with the same gun. The cannon has 2 breech mechanism (10) which includes a first sliding breech-block (19) which engages the rear end (15) of...
09/02/1997
5604326Striker device for a firearm
A striker device for a firearm of the type having a loading chamber for a munition includes a detonator cap provided with a percussion cap and a translationally movable assembly comprised of a striker equipped with a striker tip and associated with a part...
02/18/1997
5551179Bolt carrier
An improved bolt carrier for a gas operated automatic or semi-automatic firearm of the AR15 or M16 type having a substantial increase in the number and area of lands in the forward end of the bolt carrier. This results in increased accuracy of the firearm...
09/03/1996
4574681Gun barrel weapon with liquid propellant charge
A gun barrel weapon for firing a projectile by means of a liquid propellant medium. The weapon includes a coaxial first member which defines a propellant medium combustion chamber. This first member also functions as a breech or breech block. A second mem...
03/11/1986
4328736Fuseless explosive propellant cartridge
An explosive propellant cartridge for use in propellant-actuated devices. e cartridge contains only the explosive propellant which is stable and safe when not confined in a vessel capable of high pressure containment and does not contain the less stable f...
05/11/1982
4091711Rotary bolt liquid propellant gun
A liquid propellant gun loading, propellant injection and firing mechanism haracterized by a rotating breech block having a generally spherical contour. The breech block is intermittently rotated to and locked in sequential loading, fuel injection and firi...
05/30/1978
4012986Variable-elevation field guns for mortar and cannon applications
An adjustable, easily erectable field piece settable at variable elevation angles is described. A two-point support is adapted to pivotally carry an intermediate member which is affixed to a composite sleeve serving as a barrel support member. A mortar br...
03/22/1977
3978793Muzzle-expellable cartridge
A muzzle-expellable gun cartridge comprises a case including a side wall pted to fit the gun chamber and having an open front end and a transverse rear base, a projectile releasably mounted in the front end, a main propellant charge within the case in th...
09/07/1976
 
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