U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."

Dr. Alfred Velpeau, French surgeon ; 1839

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 42/49.02 - Adapters or capacity reducers


Subclass of Class 42 - Firearms
Definition: Devices including structure which provides for the feeding
No. of patents: 47
Last issue date: 03/06/2012


1    
NumberTitleIssue Date
8127480Magazine well extension for a firearm
A magazine well extension for a firearm having a magazine well and a trigger guard consists of a tapered monolithic hollow extension body closely matched to the magazine well opening. The bottom opening is larger than the top opening to more loosely receive the maga...
03/06/2012
8028455Firearms magazine for rifle length cartridges
A firearms magazine has compound tapered side walls and feed lips having substantially parallel end portions for maintaining contact with the cartridge as it is loaded. Removable inserts reduce the interior length and width to hold cartridges of different sizes. One...
10/04/2011
7963061Magazine plug
A magazine plug is configured to be positioned in a magazine of a shotgun to reduce the shotshell capacity of the shotgun. In one embodiment, the magazine plug has an elongated cross-sectional shape. The magazine plug is configured to rotate between a first orientat...
06/21/2011
7823312Magazine well extension
A magazine well extension for a firearm having a magazine well in a lower receiver, the magazine well extension including a substantially hollow body including a magazine well extension portion, for covering and extending beyond an opening of the magazine well of th...
11/02/2010
7735252Firearm magazine and adapter therefor
A firearm magazine includes a housing defining a cavity. A resilient member is disposed in the cavity. A cartridge support member is movably supported on the resilient member and configured for moving downwardly into the cavity against increasing tension of the resi...
06/15/2010
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
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
7237354Gun magazine with two-stage spring
An ammunition clip is provided for supplying cartridges to a firearm. The ammunition clip includes an elongated housing having an internal chamber for holding a plurality of laterally aligned cartridges, said elongated housing having a loading end and an opposing en...
07/03/2007
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
7200963Follower magazine system
A case has a base end with a base plate and an open upper end thereby forming an interior recess. A spring has an upper end and a lower end positioned on the base plate. A follower is fabricated of metal with a polytetrafluoroethylene coating positioned within the r...
04/10/2007
7200964Firearm cartridge clip
A preferred embodiment of a firearm cartridge clip is disclosed, in which the clip has an elongated housing extending from an open top end to an enclosed bottom end defining an elongated cartridge storage chamber. The clip has a cartridge support seat mounted in the...
04/10/2007
7117622Two-piece snap-on handgun magazine adapter
A two-piece snap-on magazine adapter for a handgun. This magazine adapter provides a relatively continuous surface between the handgun and locked extended length magazine to afford the handgun user with a comfortable grip among other benefits. In the preferred embod...
10/10/2006
7093386Removable base magazine systems
A removable base magazine is in a rectilinear configuration. The magazine has side faces and front and rear faces. The magazine has inwardly flared flanges spaced beneath the lower extent of the side and front and rear faces. A base plate assembly has a base plate a...
08/22/2006
6739082Firearm with fixed cartridge magazine top
A firearm including a barrel, an upper receiver, a lower receiver, a cartridge magazine top, a magazine follower, and a magazine spring. The upper receiver has the barrel attached thereto. The lower receiver is pivotably attached to the upper receiver. The lower rec...
05/25/2004
6715396Firearm conversion kit
A cartridge feed tray for belt ammunition is modified to receive shorter ammunition and exclude ammunition of standard length by inclusion of an insert positioned along the forward containment wall of the tray. The insert carries a feed lip that fits through a loadi...
04/06/2004
6536152Storage compartment forming insert for a firearm grip
A storage compartment forming insert fits within the hollow compartment of a firearm grip assembly to create a storage compartment. The insert generally includes a base and a resilient member extending therefrom. The base defines an outer dimension that p...
03/25/2003
6367188Firearm with detachable magazine
A firearm including an action, a barrel and a cartridge magazine. A platform is provided for removably mounting in the magazine to convert the firearm from a repeater to a single shot and to provide improved alignment of the cartridge with the chamber in ...
04/09/2002
6070352Firearm magazine cartridge converter
An adapter for converting the receiver of a rifle to one which receives a cartridge housing rounds of a shorter length, said adapter comprises a body defined by four walls two of which walls defining the front and rear walls of the adapter and two of whic...
06/06/2000
5845426Ten round magazine with fifteen round profile
A pistol magazine with the general external configuration of a 15 round magazine has longitudinal indentations projecting into the cartridge to reduce the maximum interior capacity to 10 rounds....
12/08/1998
5704148Ten round magazine with fifteen round profile
A pistol magazine with the general external configuration of a 15 round magazine, having a maximum interior capacity of 10 rounds....
01/06/1998
5666752Hand gun magazine extension assembly
In a hand gun used for target or staged shooting, a magazine tube utilizing a standard base pad limits the number of rounds that can be carried by that magazine. The present invention is a magazine extension assembly comprising a base pad and adapter whic...
09/16/1997
5651204Ornamental magazine base
The present invention relates to an ornamental base attached to an ammunition magazine for magazine fed weapons, particularly handguns. The ornamental base is attached to a conventional magazine. A locking means comprising a hook shaped tab and aperture i...
07/29/1997
5568696Reduced capacity magazine for repeater firearm
This invention relates to a magazine for a repeater firearm, preferably for an automatic pistol which, while approximately preserving its external dimensions, is modified so that the usable capacity inside the magazine is reduced. In one refinement, the i...
10/29/1996
5566488Pistol grip magazine adaptor
The pistol grip magazine adapter provides an insert for the magazine in the handles of hand guns. The insert is designed to fit snugly in the pistol magazine and is of a proper volume or density to reduce the space in the magazine such that only a single ...
10/22/1996
5555661Pistol grip magazine adaptor
The pistol grip magazine adapter provides an insert for the magazine in the handles of hand guns. The insert is designed to fit snugly in the pistol magazine and is of a proper volume or density to reduce the space in the magazine such that only a single ...
09/17/1996
5520019Gas-operated rifle system
An M16 type rifle capable of being fired in automatic or semi-automatic mode is disclosed utilizing a blow-back system with a forcing cone breech and a matching conical bolt face. The blow-back bolt assembly of the present invention allows elimination of ...
05/28/1996
5461811Gun magazine apparatus and method
A cartridge magazine for a gun includes a machined magazine body having an open edge and open bottom and a separate edge plate slidably attachable to the magazine body to cover the open edge and a floor plate slidably attachable to the magazine body to co...
10/31/1995
5416998Adapter for rifle magazine
An adapter for use in an SKS type carbine to permit attachment and detachment of a standard box magazine. The adapter includes a forward latch projection which engages the fixed attachment site of the carbine, and a rear projection, the side edges of whic...
05/23/1995
5056252Firearm magazine
A pump action shotgun loaded from a magazine tube has a box magazine which feeds successive rounds of ammunition into the magazine tube through an opening in the side of the tube. Each successive round of ammunition is fed from the magazine tube into the ...
10/15/1991
4907362Sub-caliber firearm
A sub-caliber automatic pistol of the double-action breech block type incorporates a frame having barrel-mounting ribs, a handle, a barrel-receiving slide with integral breech block, a firing mechanism of a larger caliber pistol, and a magazine adapted fo...
03/13/1990
4777752Blank magazine
A blank magazine for feeding blank rounds to a bolt-equipped firearm. The magazine has a back wall and a front wall. The distance between the inner surface of the back wall and the inner surface of the front wall is less than the length of a standard round but ...
10/18/1988
4707941Bulk cartridge magazine for firearms and process for loading
A quick load magazine and loading process are described by which bulk cartridges can be transferred from a cartridge box to a magazine and from the cartridge magazine to the firing mechanism of a firearm in a quick and efficient manner. The magazine inclu...
11/24/1987
4619062Safety device for firearms using removable magazines
A safety device for a repeating firearm includes a main body which fits in the magazine well of the firearm, closing its outer end. An outer end of the main body is clearly visible at the outer end of the magazine well when the main body is properly locat...
10/28/1986
4602449Combination screw-in choke holder and plug device
A combination screw-in choke holder and plug device is provided. This device (30) serves to receive at least one screw-in type choke, such as a choke (32). In this regard, at least one end portion of the device (30) is internally threaded and includes an ...
07/29/1986
4515064Weapon rim-fire conversion unit II
This invention is designed for the conversion of the Mini-14 and AC-556 family of firearms as manufactured by the Sturm Ruger and Co., Inc. in Southport, Conn., for firing of smaller, less powerful ammunition for which it was not originally designed, by p...
05/07/1985
4447976Cartridge magazine mount
A plurality of cartridge magazines is coupled to a mounting base such that when one magazine is inserted within a weapon, the additional magazines are readily stored on the weapon and in ready, convenient and instantaneous access to the shooter. The mount...
05/15/1984
4297800Cartridge magazine for firearms
Apparatus for converting a firearm of a first caliber to fire cartridges of a second caliber. The regular bolt assembly of the firearm is removed and replaced with a conversion bolt assembly having a flat receiver plate which is bifurcated to provide a pa...
11/03/1981
4220071Conversion kit for semi-automatic carbines
A conversion system for .30 caliber semi-automatic carbines permits selective use with .22 caliber ammunition. Modified barrel, bolt, operating slide and magazine sub-assemblies easily replace the corresponding original sub-assemblies to provide for direc...
09/02/1980
4194314Ejector assembly for a firearm adapter
An automatic and semiautomatic small caliber conversion system for automatic or semiautomatic shotguns and rifles such as, for example, M-16 and AR-16 rifles, including a uniquely three element structure and associated ammunition feeding means to permit t...
03/25/1980
1    
 
Sign InRegister
Username  
Password   
forgot password?