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David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7356959 | Firearm authorization system with piezo-electric disabler An authorization system for a firearm (10) includes an authorizing device (32) worn by the authorized user, and a firearm (10) with a fire control system, a computer controller (28), and a piezo-electric disabler (60). The computer... | 04/15/2008 |
| 7287456 | Breech-block system for a firearm A breech system for a firearm exhibits a breech which can be locked in its movement in the barrel block by at least one locking element, which is pressed against the rear end of the barrel by means of a breech spring surrounding the rigid barrel of the weapon, the b... | 10/30/2007 |
| 7207130 | Over-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 |
| 7201094 | Firearm with enhanced recoil and control characteristics The invention comprises an improved recoil control device comprising a bolt head and an inertia block or slider for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in ... | 04/10/2007 |
| 7140141 | Apparatus and method for removing the slide of a semi-automatic pistol A semi-automatic firearm includes a frame and a movable slide mounted on the frame. The slide defines an ejection port and lateral walls that extend longitudinally from a rear face of the slide to adjacent a front face through which an opening is formed to permit eg... | 11/28/2006 |
| 7055422 | Reduced recoil anti-armor gun An improved Barrett anti-armor gun that is modified to function from the open bolt with advanced primer ignition, wherein the forward momentum of the recoiling masses at the moment of firing offset a significant portion of the recoil impulse from firing. The modific... | 06/06/2006 |
| 7010879 | Trigger assemblies for grenade launcher attachments to gas-operated rifles Grenade launchers for attachment to gas-operated service rifles and carbines such as the M16 and M4 are improved by providing them with a trigger assembly that enables the shooter to deliver repeated hammer strikes to the primer of the loaded grenade without having ... | 03/14/2006 |
| 6922932 | Action release for a muzzleloader A firearm having an improved action for a muzzleloading firearm which allows the toolless field removal of the firing system for inspection, cleaning and repair. The system provides for quick release, removal and reinsertion of the firing system while maintaining sa... | 08/02/2005 |
| 6865979 | Apparatus and method for removing the slide of a semi-automatic pistol A method for removing the slide from a semi-automatic firearm is provided that includes the steps of: (1) providing an access port within the slide of the firearm that is positioned to align with the firing mechanism of the firearm; (2) inserting a probe into the ac... | 03/15/2005 |
| 6588136 | Decocking lever A fire control system with a decocking lever that operates to decock the hammer and also as a safety. The fire control system also has a magazine safety to complement the decocking lever's dual functions. The magazine safety is in the "safety on" position... | 07/08/2003 |
| 6431045 | Trigger system for recoil driven weapons A device is disclosed for a weapon for firing burst of several shots. The device unlocks and latches the rifle bolt in the rear position to avoid heat distribution from the chamber or barrel to the powder or explosives in the booster charge or the explosi... | 08/13/2002 |
| 5913261 | Trigger arrangement A trigger arrangement for an automatic weapon with switch-over between continuous firing and single-shot modes includes a hammer, a breechblock, a latch, a pivotably mounted trigger, and a firing lever. In the single-shot mode, the firing lever engages th... | 06/15/1999 |
| 5797206 | Method for reversibly converting a traditional double action pistol to a single action, target pistol A method of reversibly converting pistols that have been manufactured as double action pistols to single action, target pistols. The double action pistols have an initial trigger stroke for the double action performance thereof. The length of the trigger ... | 08/25/1998 |
| 5697178 | Fire control mechanism for firearms An improved fire control mechanism for firearms in which a connector is interposed between the trigger and the sear with the connector assembly and sear coupled through a linkage, interruptable by a disconnector, such that with a safety cross-button pushe... | 12/16/1997 |
| 5635664 | Functioning mechanism for a small calibre automatic weapon A functioning mechanism for a small caliber automatic weapon includes a translatable and rotatable sear, and a rotatable hammer. The sear includes a hooking element adapted to contact a bearing surface of the hammer to render the hammer immobile. Rotating... | 06/03/1997 |
| 5615507 | Fire control mechanism for a firearm A locking mechanism for a firearm a striker which is slidably mounted in the breach end of the barrel of the firearm for movement between a rearward cock position and a forward firing position. The striker is biased toward the firing position and is moved... | 04/01/1997 |
| 5517897 | Semi-automatic handgun with unalterable trigger mechanism A firearm having a toggle and bolt assembly. The bolt is reciprocal and houses a firing pin connected to a driver which are spring biased by the recoil springs. The firing pin is independent of the bolt and is engaged by a trip and sear mechanism when the... | 05/21/1996 |
| 5517896 | Semi-automatic handgun with independent firing spring A firearm having a toggle and bolt assembly. The bolt is reciprocal and houses a firing pin connected to a driver which are spring biased by the recoil springs. The firing pin is independent of the bolt and is engaged by a trip and sear mechanism when the... | 05/21/1996 |
| 5149898 | Fire control assembly A fire control assembly (400) is provided with increased safety features. A set porch (470) is formed on a disconnect (404) to hold a firing window (416) of the disconnect (404) out of contact with a sear pin (412). A pin (458) engages a safety surface (4... | 09/22/1992 |
| 5086578 | Sear positioning spring for a firearm A spring for positioning a sear of a firearm and a method of manufacturing a firearm. The spring has a first section that is connected to the frame of the firearm, a second section that exerts a biasing force against the sear in a first direction, and a t... | 02/11/1992 |
| 4719841 | Trigger release mechanisms for full and semi automatic open bolt weapons A hesitation blowback toggle action weapon in which an under-center toggle employing interconnected toggle links recedes and redirects the recoil energy directed against the face of the bolt generated at the time of firing into the handle of the weapon, a... | 01/19/1988 |
| 4308786 | Trigger device for automatic gun A trigger device for an automatic gun provided with a connector piece which serves to engage a hammer with a sear and also is interlocked with a trigger to slide forward on a trigger guard inside a receiver in such a way as to disengage the hammer from th... | 01/05/1982 |
| 4103586 | Firearm trigger mechanism In the embodiment of the invention described in the specification, a shotgun includes a trigger housing having a rotatably mounted hammer, a pivotally mounted trigger and a slidably and rotatably mounted disconnect member. The disconnect member links the ... | 08/01/1978 |
| 4017996 | Sear-disconnector for firearms A disconnector for the trigger mechanism of a repeating firearm, in which the trigger must be disconnected from the sear during the reloading cycle so that the sear can re-engage and cock the firing member even though the trigger is still retracted when t... | 04/19/1977 |
| 4014247 | Gas-operated shotgun A gas-operated, magazine fed firearm includes a shell carrier for receiving shells from the magazine and lifting them into chambering position. An integral shell stop and carrier latch lever pivotally mounted in the receiver latches the shell carrier in i... | 03/29/1977 |