Quotables
"There is no reason anyone would want a computer in their home."
Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
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.
| Number | Title | Issue Date |
| 8176837 | Firearm operating rod The embodiments of the present invention generally provide or relate to an operating rod for use in an auto-loading firearm. More specifically, embodiments of the present invention provide an operating rod for selectively actuating a bolt carrier by gas-impingement ... | 05/15/2012 |
| 8117958 | Firearm with gas operating system A semi-automatic or automatic rifle is provided the rifle having: a receiver having a hand guard portion; a barrel having a bore, the bore removably connected to the receiver, the hand guard portion surrounding at least a portion of the barrel; a gas block having a ... | 02/21/2012 |
| 8109195 | Gas venting system for firearms A gas operated firearm having a gas venting system which configures the carrier key and the gas tube so that a substantial portion of the recoil gas is vented from the gas tube into the cavity defined by a hand guard to reduce fouling and high temperatures associate... | 02/07/2012 |
| 8109193 | Gas piston assembly and bolt carrier for gas-operated firearms A kit for modifying a bolt carrier group actuating apparatus of a firearm manufacturer-configured with a gas-driven bolt carrier comprises a gas expansion assembly, an operating rod driven bolt carrier and an operating rod. The gas expansion assembly is configured f... | 02/07/2012 |
| 8109196 | Cleanout port for gas-operated firearms An improved gas tube system for a firearm having a gas tube with a distal end that is selectively openable to permit access to the distal end of the gas tube for cleaning thereof. ... | 02/07/2012 |
| 8109194 | Clamped gas block for barrel A gas block clamping apparatus for a firearm includes a plurality of sections, each including a shaped upper section, and a lower cylindrical section to which the shaped upper section is attached. A plurality of clamp sections are symmetrically disposed on opposite ... | 02/07/2012 |
| 8065949 | Gas-operated firearm A gas operating system for a firearm renders the firearm capable of firing a wide range of shot loads by passively or automatically compensating for different shot loads. The firearm includes a plurality of ports formed in the firearm barrel, and corresponding ports... | 11/29/2011 |
| 8061260 | Gas plug retention and removal device A gas plug retention and removal device for a gas operating system of a firearm. The gas operating system can include a gas block comprising a front end, a rear end, a gas block bore defined between the front and rear ends, and at least one cam engagement surface. A... | 11/22/2011 |
| 7946214 | Gas system for firearms A piston assembly is provided for a gas-operated firearm of the type having a chamber and a barrel. The piston assembly includes a gas expansion housing and a piston mounted within the gas expansion housing. An annular recess is formed in the outer wall of the pisto... | 05/24/2011 |
| 7938055 | Law enforcement carbine with one piece receiver A semi-automatic or automatic rifle is provided. The semi-automatic or automatic rifle includes a receiver having an integral hand guard portion, a barrel having a bore. The bore is removably connected to the receiver, the hand guard portion extending over and surro... | 05/10/2011 |
| 7934447 | Firearm having an indirect gas operating system A black rifle configuration automatic or semi-automatic firearm having an indirect gas operating system. The firearm has a black rifle configuration receiver assembly having a bolt assembly enclosed within. The bolt assembly having a striking surface and a barrel as... | 05/03/2011 |
| 7921760 | Compact gas block with rail interface A compact gas block with rail interface has a first longitudinal bore for receiving a firearm barrel, the barrel having a gas port, the gas block having a second longitudinal bore for receiving a gas tube or operating element. The block includes a vertical bore alig... | 04/12/2011 |
| 7891284 | Firearm with gas system accessory latch A gas-operated firearm has a barrel defining a bore with a gas block defining a chamber communicating with the bore via a gas passage. A gas regulation element has a first position and a second position, and serves to provide different gas flow characteristics in th... | 02/22/2011 |
| 7856917 | Switchblock An adjustable gas block designed to interface with an autoloading firearms gas system. Three positions of adjustment are provided to optimize the gas flow from the barrel for the host firearm. One of the three provided positions of adjustment is selected if a silenc... | 12/28/2010 |
| 7810423 | Gas operated firearm action delay device The invention relates to a device for delaying the gas action operated firearm. The device includes a gas chamber and an outlet, wherein the outlet is in fluid communication with the action tube of the firearm. The device has a port in fluid communication between th... | 10/12/2010 |
| 7779743 | Gas piston assembly and bolt carrier for gas-operated firearms A kit for modifying a bolt carrier group actuating apparatus of a firearm manufacturer-configured with a gas-driven bolt carrier comprises a gas expansion assembly, an operating rod driven bolt carrier and an operating rod. The gas expansion assembly is configured f... | 08/24/2010 |
| 7775150 | Law enforcement carbine with one piece receiver An indirect gas operating system for an M4 type automatic or semi-automatic firearm. The indirect gas operating system has a gas block having a cylinder. The gas block is fitted to a barrel assembly having a bore with the cylinder in communication with the bore. A p... | 08/17/2010 |
| 7637199 | Gas cylinder components for use with firearms Methods and apparatus are described for gas cylinder components for use with a firearm with a barrel. The gas cylinder component includes a reception bore for receiving the barrel. Additionally, the gas cylinder component includes a torque-proof fixture that is unde... | 12/29/2009 |
| 7621210 | Gas bleed assemblies for use with firearms Gas bleed assemblies for use with firearms are described. An example gas bleed assembly for use with a firearm having a barrel includes a gas cylinder that defines at least one gas outlet to be fluidly coupled to a bore of a barrel. The gas cylinder is substantially... | 11/24/2009 |
| 7610844 | Firearm having an indirect gas operating system An M4 type automatic or semi-automatic firearm having an indirect gas operating system. A bolt assembly has a striking surface. The bolt assembly is enclosed within an M4 type receiver assembly. A barrel assembly having a bore is coupled to the receiver assembly. A ... | 11/03/2009 |
| 7467581 | Semi-automatic rifle A semi-automatic rifle includes a frame (2); a barrel (3); a sliding guide (9) mounted in the frame (2) and forming one piece with breech bolts (10) which make it possible to control the recocking and the locking of the rifle (1... | 12/23/2008 |
| 7418898 | M16 modified with pushrod operating system and conversion method A push rod operating system for an AR-15/M-16 rifle includes an AR-15/M-16 rifle having a barrel coupled to an upper receiver, a bolt carrier carried by the upper receiver, and a mechanical key coupled to the bolt carrier. A gas block is coupled to the barrel, the g... | 09/02/2008 |
| 7380488 | Blank 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 |
| 7316091 | Firearm 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 |
| 7311032 | Firearms with gas pressure loading mechanisms Firearms employing gas pressure loading mechanisms are disclosed. An example firearm includes a single force receiving component containing a gas cylinder, and a barrel in communication with a cartridge chamber received in the force receiving component. The cartridg... | 12/25/2007 |
| 7302774 | Flash 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 |
| 7159505 | Hydraulic breech mechanism for firearms A hydraulic breech mechanism uses a sealed reservoir of fluid to rigidly support the bolt 6 against barrel 2 resisting pressure generated by discharging a cartridge in chamber 3. Recoil forces cause the high pressure cylinder 7 and barrel... | 01/09/2007 |
| 7047686 | Versatile M1911-style handgun and improved magazine for rifles and handguns An improved M1911-style handgun employs redistributed masses for a slide and bull barrel to reduce perceived recoil and muzzle flip when the gun is fired. The gun operates with cartridges having .50 caliber cases, bullets of .50 caliber or less, and 45 ACP-sized bas... | 05/23/2006 |
| 7040213 | Firearm receiver system with belt-feed capability A firearm receiver system including a receiver body, an ammunition belt feeding assembly and a bolt carrier. The receiver body includes a first face and a second face approximately opposite the first face. The receiver body is configured for having means for trigger... | 05/09/2006 |
| 7036260 | Method 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 |
| 7000345 | Underbarrel shotgun A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking blo... | 02/21/2006 |
| 6901837 | Extended lever for a firearm An extender for a bolt catch release lever on a bolt catch operating lever of a firearm equipped with a protective spare magazine carrier for holding a loaded spare magazine in a position of readiness for immediate insertion into operative engagement with that firea... | 06/07/2005 |
| 6868770 | Autoloading gas port structure A gas porting structure for an autoloading gun, wherein the structure consists of an insert fitting within a slot cut laterally thru the gun barrel and wherein one or more slot like gas ports are formed thru the insert in a longitudinal direction generally axial of ... | 03/22/2005 |
| 6848351 | Rifle A rifle with an upper receiver and a barrel attached to the upper receiver and including a bolt carrier, and operating, buffer, and cooling systems. The operating system includes a cylinder and a piston coupled to receive propelling gases from the barrel. As the pis... | 02/01/2005 |
| 6782791 | Semiautomatic or automatic gun The gun may have a receiver element with a barrel extending forwardly from the receiver element with the barrel having a chamber end and a discharge end. A handle element may be attached to the receiver element and a trigger assembly may be integrated with the handl... | 08/31/2004 |
| 6722255 | Apparatus and method for actuating a bolt carrier group of a receiver assembly An apparatus adapted for actuating a bolt carrier group apparatus comprising a piston tube attached to a receiver assembly. An operating rod is disposed in a bore of the piston tube. A piston is engaged with a first end of the operating rod. The operating rod moves ... | 04/20/2004 |
| 6681677 | Method of reconfiguring a firearm receiver system for receiving magazine-fed ammunition and belt-fed ammunition A method of reconfiguring a firearm receiver system comprises the operations of providing a substantially as-manufactured OEM lower receiver assembly capable of having an ammunition magazine attached thereto for communicating ammunition to an OEM upper re... | 01/27/2004 |
| 6634274 | Firearm upper receiver assembly with ammunition belt feeding capability A firearm receiver system includes an upper receiver assembly capable of receiving magazine-fed ammunition and belt-fed ammunition. A lower receiver is attached to the upper receiver assembly. The lower receiver assembly is capable of having an ammunition... | 10/21/2003 |
| 6622610 | Gas retarded blowback operating system for pistols and other short barreled weapons The closure of a blowback operated weapon is augmented by a gas cylinder and piston. The piston is self centering.... | 09/23/2003 |
| 6516700 | Automatic weapon An automatic weapon has a housing 1 with a movable spring-mounted barrel assembly 6 having a barrel 7 and a receiver 8. The receiver 8 has a spring-mounted bolt support 24 with a bolt 27, a buffer mechanism 32 and a firing pin mechanism 33 having a movabl... | 02/11/2003 |
