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Class 42/77 - Auxiliary


Subclass of Class 42 - Firearms
Definition: Barrels some of which are adapted to be placed within the
No. of patents: 137
Last issue date: 01/24/2012


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NumberTitleIssue Date
8099896Rifle having a replaceable barrel
A rifle with a replaceable barrel with two or more barrels for different purposes and calibers and with own magazines for different cartridges. At least one barrel (1) has the cavity (2), into which a projection or upper edge (4) in the cartridg...
01/24/2012
7797872Clamp for retail display of extra firearm barrel
A display clamp, and related method, are disclosed for removably attaching a second, interchangeable barrel to a fully assembled long gun (i.e., a shotgun or rifle) for display purposes only, wherein the extra barrel's gas cylinder or lug is suspended from the long ...
09/21/2010
7467490Display clamp assembly for extra firearm barrels
A display clamp assembly, and a related method, are disclosed for removably attaching a second barrel to a shotgun for display purposes, allowing a retail store (or a buyer) to display the firearm as a combination unit in a display case. The extra barrel is attached...
12/23/2008
7421934Mortar tube for training
A training mortar apparatus includes a small mortar tube and a large mortar tube, the small mortar tube being disposed in the large mortar tube; a removable base cap attached to one end of the small mortar tube; a plug inserted in the removable base cap; a removable...
09/09/2008
7380363Replaceable blank firing barrel
A blank firing barrel for use with handguns is disclosed. The blank firing barrel is sized to be substituted for an existing live-ammunition firing barrel in a handgun. The blank firing barrel can be machined from a solid block of metal such as stainless steel so th...
06/03/2008
7380488Blank firing adapter for combination gas and recoil operated weapon
A firing adapter for a combination gas and recoil operated weapon includes a blank firing barrel attached to the weapon; a piston having a barrel end and an anchor end, the barrel end being reciprocably disposed in the blank firing barrel and the anchor end being fi...
06/03/2008
7353631Muzzle-loading firearm
A muzzle-loading firearm has a barrel, a frame part, a breech plug, and a firing block arranged adjacent to the rear end of the breech plug, the firing block being slidably connected to the frame part so that said firing block can slide rectilinearly, in a direction...
04/08/2008
7340987Conversion platform for a .45 ACP pistol
A method of modifying a .45 ACP pistol having a slide and a receiver defining a magazine well includes the steps of reducing the size of the magazine well and shortening the slide. The slide includes a breech face and a proximal end and the magazine well includes a ...
03/11/2008
7334366Accessory mount for a firearm
An accessory mount having a rail for removably mounting an accessory (such as a light beam generator) to a firearm, the accessory mount being removably secured to the firearm through utilization of a transverse pin retained by the firearm, and positionally stabilize...
02/26/2008
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
7327549Systems and methods for target impact
An apparatus for impact with a target includes electrodes deployed after contact is made between the apparatus and the target. Spacing of deployed electrodes may be more accurate and/or more repeatable for more effective delivery of an immobilizing stimulus signal.
02/05/2008
7316093Firearm and munitions kit
The firearm and munitions kit is a cartridge and a barrel insert for a firearm adapted to fire munitions comprising a 223 round. The cartridge has an axis, a neck, a shoulder, a body, an extraction groove, and a slight frustoconical shape extending axially from the ...
01/08/2008
7314007Apparatus and method for electrical immobilization weapon
An electrical immobilization weapon having a prolonged range of effectiveness and improved accuracy compared to conventional Taser weapons, while being compact in structure and lightweight. The weapon having a replaceable cartridge which, when employed, can space a ...
01/01/2008
7302890Training ammunition
The invention provides a training cartridge having a peripheral fire primer and a gun modified to fire the cartridge. The combination of modified gun and peripheral fire cartridge avoids the potentially adverse consequences that could arise if live ammunition and tr...
12/04/2007
7302774Flash suppressor apparatus and methods
Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a supp...
12/04/2007
7302881Conversion kit and method for a ruger 10/22 semi-automatic .22 caliber rim fire rifle to shoot .17 mach 2 cartridges
A conversion kit and method for converting the RUGER® 10/22® semi-automatic .22 caliber rim fire rifle to shoot .17 HM 2 cartridges utilizes the original bolt in the receiver and replaces the bolt operating handle with increased weight to replace the original bolt...
12/04/2007
7287455Safety panel for handguns
A safety panel is attachable to the grip of a handgun that stores rounds in the grip and that has at least one opening in the frame of the grip through which hot gases and shrapnel may pass in a blowout. The safety panel is a plate that completely covers the opening...
10/30/2007
7278358Non-lethal marking bullet for related training cartridges
A projectile of non-lethal composition includes an outer casing that is substantially sealed prior to impact with a target both when the projectile is in a static condition and when the projectile is in a dynamic condition. A marking material is encapsulated within ...
10/09/2007
7225741Reduced energy training cartridge for self-loading firearms
A two piece, two-stage, rechargeable, reusable, reduced-energy mechanically operating cartridge is provided for launching a bullet of various compositions from a dedicated or modified firearm. The cartridge unit is comprised of a primary case, a piston sleeve, a pro...
06/05/2007
7207273Buckshot round
A buckshot round for use in large, smooth-barreled weapons, such as an M203 or M79 grenade launcher, wherein the round itself acts as the firing barrel. In particular, a lethal buckshot round is provided, wherein an inner metal cylinder (barrel portion) is encased i...
04/24/2007
7121035Sight-preserving, partially self-cleaning, divergent-axis caliber conversion in handguns
A conversion kit for converting a semi-automatic or self-loading handgun of a certain caliber, such as a Colt .45, is modified to allow the use therein of cartridges of a different, usually smaller caliber, thus to allow less expensive training on the handgun, where...
10/17/2006
7076901Empty cartridge removing device of a dummy launcher for animal training
An empty cartridge removing device of a dummy launcher for animal training having a fixed member of a fixed assembly pivotally assembled with a body of a firing assembly, the empty cartridge removing device comprising: a barrel adapted to be coupled with a coupling ...
07/18/2006
7076905Pneumatic paintball marker, universal barrel, adaptor and insert combination
The present invention comprises a pneumatic paintball marker for use with an adaptor, the pneumatic paintball marker comprising a marker body which has a back portion and a front portion. The back portion is adapted to receive a paintball and the front portion is ad...
07/18/2006
7076904Detachable gun barrel assembly
A detachable gun barrel assembly having an adapter for threaded engagement with the receiver and a barrel dimensioned for affixation to the adapter. The adapter has a mating end section which threadedly engages the receiver V-threads and a receiving end section havi...
07/18/2006
7062875Barrel replacement or insert devices for firearm function conversion
An adapter device is provided for converting a grenade launcher into a weapon for firing shot shells. The adapter includes an elongate barrel member of a gauge for shot shell which is adapted to be received in, and extend through, the barrel of the host barrel assem...
06/20/2006
7042696Systems and methods using an electrified projectile
An apparatus for immobilizing a target includes electrodes deployed after contact is made between the apparatus and the target. Spacing of deployed electrodes may be more accurate and/or more repeatable for more effective delivery of an immobilizing stimulus signal....
05/09/2006
7036260Method and system to prevent firing live rounds of ammunition during miles exercises
A safety system for preventing a handheld firearm from discharging an inadvertently loaded live ammunition projectile or bullet during a training exercise or the like by safely venting through a series of substantially perpendicular vent holes in the barrel, the pre...
05/02/2006
7036259Casing for firearms
A casing for firearms, comprising a metal sleeve (15) on which is stably applied, through attachment means, a barrel (12), an inner element (14) made from polymeric material for the anchoring of said sleeve (15) and an outer shell (13
05/02/2006
6994011Firearm safety device
A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am...
02/07/2006
6968770Firearm safety device
A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am...
11/29/2005
6931774Smokeless cylinder for muzzle-loading revolver
A replacement cylinder that enables the use of modern smokeless gunpowder in a black powder muzzle-loading revolver is provided. The cylinder includes a main cylinder body and a removable cylinder cap. The main cylinder body includes a number of chambers, each of wh...
08/23/2005
6918249Pneumatic brake booster for use in a brake system
A brake booster comprising an envelope (2) having a longitudinal axis (X) formed of a first (4) and of a second (6) shell to define an interior volume divided by moving a skirt into a low-pressure first chamber and a variable-pressure second cha...
07/19/2005
6907687Over-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...
06/21/2005
6874403Assembly and a method for increasing the accuracy of a projectile
An assembly (10) having an outer barrel (12) and an inner barrel (30) having a pair of dissimilar sized bearings (38, 40) which are press fit within the outer barrel (12) and which permit the inner barrel (30) to mechanicall...
04/05/2005
6848208Replaceable blank firing barrel
A blank firing barrel for use with handguns is disclosed. The blank firing barrel is sized to be substituted for an existing live-ammunition firing barrel in a handgun. The blank firing barrel can be machined from a solid block of metal such as stainless steel so th...
02/01/2005
6837139Flash suppressor apparatus and methods
Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a supp...
01/04/2005
6823857Barrel assembly with removable barrel insert for pneumatic paintball gun
A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert ha...
11/30/2004
6789342Firearm
A fire arm, especially a small caliber pistol, having a grip, a frame connected to the grip, a barrel unit fixed on the frame in the operating state of the fire arm, with a barrel tube and a bolt which can move relative to the frame and barrel unit such that when a ...
09/14/2004
6769209Removable interior barrel adaptable in an interior of an original barrel for ammunition or pellets for sport rifles
A removable inner barrel apparatus has a rifle with barrel extending therefrom, an inner barrel having an end through which ammunition can exit, a pressure nut removably fastening the barrel of the rifle to the inner barrel, and a compression spring positioned withi...
08/03/2004
6718677Plug for a firearm
A plug assembly for inserting in a breech of a breech-loaded firearm to convert the breech-loaded firearm to a muzzle-loaded firearm is provided. The plug body is slidable in the breech and includes first and second ends. The plug body defines a powder chamber adjac...
04/13/2004
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