| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Cartridge extractor | US854833 | 1997-05-12 | US5794373A | 1998-08-18 | Kook-Jin Moon |
| A firearm having a frame and a slide supported for movement on the frame between battery and retired positions. The slide has an ejection port and a slot longitudinally extending from the ejection port for supporting a cartridge extractor such that upper and lower surfaces of the extractor are in sliding contact with a lower and upper surfaces of the slot, respectively. A recess in the upper surface of the extractor is in communication with a recess in the lower surface of the extractor via a passage extending therebetween. One of the recesses is in communication with the ejection port and the other recess is in communication with the exterior of the slide to provide a passageway for the transport of propellant combustion products from the interior of the slide to the exterior of the slide. | ||||||
| 142 | Chamber for a firearm | US683077 | 1996-07-16 | US5758445A | 1998-06-02 | Richard J. Casull |
| The present invention relates to a chamber for a firearm. The firearm chamber of the present invention includes a barrel with an inwardly extending angled surface for engaging with a receiver. The receiver includes a complementary angled surface portion for mating the receiver and barrel together to form the chamber. The receiver includes an insert which has the complementary angled surface portion for mating with the barrel. | ||||||
| 143 | Gas-operated rifle system | US420754 | 1995-04-12 | US5499569A | 1996-03-19 | Brian D. Schuetz |
| An M16 type rifle capable of being fired in automatic or semiautomatic mode is disclosed utilizing a blow-back system with a forcing cone breech and a matching conical bolt face. The blowback bolt assembly of the present invention allows elimination of the troublesome and easily fouled gas operating system of the conventional M16 rifle and further allows the rifle to be chambered for short low-pressure pistol cartridges such as the 45 ACP and the 40 S&W. | ||||||
| 144 | Multi-caliber firearm | US687189 | 1991-04-18 | US5133142A | 1992-07-28 | Franz-Josef Peters |
| A multi-caliber firearm includes a breech, a pull-out claw at least partially disposed within the breech, and an adapter piece which is adjustably attached to the breech and onto which is formed a bearing surface which is located radially opposite the pull-out claw. The pull-out claw is capable of selectively engaging a cartridge case having a cartridge base. The position of the adapter piece is adjustable to enable the breech to accommodate cartridge cases having different cartridge base diameters. The adjustment of the adapter piece may be performed via rotation of an adapter piece formed with a plurality of steps ascending in a circumferential direction of the adapter piece, of via rotating an adapter piece which is screwed into the threaded bore and which moves radially with rotation of the adapter piece. | ||||||
| 145 | Polymer weapon apparatus with counter-torque device | US148095 | 1988-01-28 | US4838143A | 1989-06-13 | David E. Byron |
| An automatic or semi-automatic pistol is made substantially of polymer materials. The pistol includes polymer upper and lower receivers and a polymer barrel attached to the upper receiver. The operating mechanism includes a bolt, block and a hammer, slidably mounted in the fixed upper receiver with the bolt and block and the hammer being separately springloaded. A gas operated link is positioned to rotate the pistol block from a locked to an unlocked position when actuated by gas from a fired cartridge. A gas port extends from the end portion of the barrel to one end portion of the gas operated link to move the link responsive to the gas pressure to thereby unlock the block so that the block, bolt and hammer can be operated by reaction to the gasses still in the weapon barrel. Other features include encasing the entire operating mechanism in an non-movable upper receiver with a removable trigger, and operating handle and having a cutoff switch to change the firing mode from self-loading semi-automatic action to a single shot action, and a counter-torque muzzle cap to counter the torque of the bullet spin, an automatic hammer safety to prevent firing if the action is not fully locked. | ||||||
| 146 | Polymer gun | US702635 | 1985-02-04 | US4703826A | 1987-11-03 | David E. Byron |
| An automatic or semi-automatic pistol is made substantially of polymer materials. The pistol includes polymer upper and lower receivers and a polymer barrel attached to the upper receiver. The operating mechanism includes a bolt, block and a hammer, slidably mounted in the fixed upper receiver with the bolt and block and the hammer being separately springloaded. A gas operated link is positioned to rotate the pistol block from a locked to an unlocked position when actuated by gas from a fired cartridge. A gas port extends from the end portion of the barrel to one end portion of the gas operated link to move the link responsive to the gas pressure to thereby unlock the block so that the block, bolt and hammer can be operated by reaction to the gasses still in the weapon barrel. Other features include encasing the entire operating mechanism in an non-movable upper receiver with a removable trigger, and operating handle and having a cutoff switch to change the firing mode from self-loading semi-automatic action to a single shot action, and a counter-torque muzzle cap to counter the torque of the bullet spin, an automatic hammer safety to prevent firing if the action is not fully locked. | ||||||
| 147 | Firing mechanism for firearm | US784157 | 1985-10-04 | US4693170A | 1987-09-15 | Maxwell G. Atchisson |
| A firearm having a hammer and a bolt mechanism capable of recoil movement behind the hammer, so that the bolt assembly in recoil momentarily clears the hammer. A timing lever senses rearward travel of the bolt assembly and prevents the hammer from release, irrespective of trigger mechanism operation, while the bolt assembly is momentarily behind the hammer. The hammer timing lever is engaged by the forwardly-moving bolt assembly to release the hammer and return control of the hammer to the trigger mechanism. | ||||||
| 148 | Automatic firearm | US535999 | 1983-09-26 | US4562659A | 1986-01-07 | Yoave Neta |
| An improved automatic firearm. The firearm comprises a body assembly including a body member, a barrel mounted in said body member, a trigger assembly mounted to said body member proximate to the front end of the barrel, and a magazine guide in the body member spaced apart from and behind the trigger assembly. In addition, the body member suitably comprises a one-piece body cut to length. | ||||||
| 149 | Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly | US639526 | 1984-08-08 | US4553469A | 1985-11-19 | Maxwell G. Atchisson |
| A locked breach, gas operated long action firearm capable of firing heavy caliber shotgun or rifle shells with substantially reduced recoil. The gas piston and bolt carrier assembly are supported for recoil movement along a single guide rod which extends the entire length of the gun, permitting a longer recoil path resulting in reduced impulse due to recoil. The guide rod has a noncircular or radially-assymmetrical cross-section mating with a corresponding opening in the gas piston, so that the bolt carrier assembly remains in alignment over the entire recoil path. Separate close-bolt and open-bolt embodiments are disclosed, and the open-bolt embodiment is selectively capable of firing either semi-automatic or full-automatic while permitting reliable cartridge feeding from a box or drum magazine. | ||||||
| 150 | Angular shape firing pin for use with a collapsible toggle recoil in a hand held weapon | US321736 | 1981-11-16 | US4467698A | 1984-08-28 | Walter E. Perrine |
| Hand held rifles and pistols employing a novel bolt firing pin configuration and controls therefor which effectively absorb the effects of the shell explosive forces. | ||||||
| 151 | Firearms with rechargeable magazine | US361920 | 1982-03-15 | US4387524A | 1983-06-14 | Norman T. Brint; Leon J. Williams |
| A firearm especially for firing large calibre rounds such as rubber bullets and having a magazine in which a plurality of rimmed rounds may be stacked in contact with one another, the magazine being rechargeable at any stage of depletion. The firearm includes a catch mechanism which locks a round in the breech on insertion, permits the rim of a round to ride forward over the rim of a previously-inserted round without fouling, and the extraction of a spent round rearwardly without its rim fouling a previously-inserted round. Mechanism for firing, automatic feed, and automatic extraction and ejection of spent rounds is described. | ||||||
| 152 | Convertible bolt action rifle | US3791060D | 1973-03-08 | US3791060A | 1974-02-12 | WEAVER N |
| A bolt action rifle is convertible for use by either right hand or left hand shooters through alteration of the position of the bolt actuating handle and the shell ejector. The bolt actuating handle is mounted by screw means extended through a reversible sleeve. Shell ejection is effected by a lug extended into a selected one of two off-center bolt grooves which alters the direction of ejection of expended shells after firing.
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| 153 | Automatic firearm | US3788190D | 1972-04-10 | US3788190A | 1974-01-29 | DUNN K |
| A firearm which utilizes the recoil of the explosion to automatically bring a new cartridge into position in the firing chamber and to discharge the spent cartridge. The loading mechanism includes a slide member having fingers which grip the rim of the cartridge and a cam means carried by the frame of the firearm and utilizing the rearward sliding motion between the slide member and the frame to produce upward movement of the cartridge from the magazine to the loading area and to produce alignment of the cartridge with the firing chamber of the firearm so that upon forward return movement of the slide member the cartridge is positioned in the firing chamber ready for firing.
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| 154 | Machine gun | US3756119D | 1971-12-14 | US3756119A | 1973-09-04 | CURTIS G; TATRO H |
| The machine gun of this invention features a unitary bolt and bolt drive assembly reciprocably mounted within a receiver along three longitudinally extending bearing supports symmetrically arranged in spaced relation to the receiver; the bolt and bolt drive assembly, together with a recoil buffer constituting an integral operating group removably maintained within the receiver by a single latch mechanism; a bolt carrier of the assembly incorporating actuating means for cartridge belt advance, cartridge extraction and ejection; the bolt carrier housing not only a rotary, front-locking bolt but also a cam follower which fixes a firing pin to the carrier and moves within a contoured slot in the bolt for locking and unlocking it in battery. This machine gun also features a gas recoil system for the bolt and bolt drive assembly having anti-fouling porting means for purging gas from the system under high pressure after firing; an ejector operated by the recoiling bolt and bolt drive assembly independently of its velocity; an automatically engageable, selfaligning barrel and receiver latch construction; and a sight assembly featuring a zero backlash precision screw adjustment means.
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| 155 | Bolt handle and pistol grip magazine for an automatic firearm | US3651736D | 1969-06-11 | US3651736A | 1972-03-28 | INGRAM GORDON B; ADAIR MICHAEL H; REEVES ROSSER S |
| An automatic firearm comprises a frame, a receiver mounted on the frame, a barrel mounted on the receiver, a bolt disposed in the receiver and telescopically movable relative to the breech end of the barrel against the action of a recoil spring, the bolt being controlled by a sear which is movable in response to movement of the weapon trigger. A trigger guard is mounted on the frame and disposed in enveloping relationship to the trigger and arranged with one end protruding inwardly of the frame and adjacent the breech end of the barrel so as to aid in guiding rounds of ammunition into the breech end of the barrel. A bolt handle is movably mounted on the bolt and arranged to extend through a longitudinal slot formed in the receiver. The bolt handle is constructed so as to form a locking relationship with enlarged ends of the longitudinal slot when moved relative to the bolt and a sight passage is formed in the outwardly protruding portion of the bolt handle which allows sighting therethrough in line with the front and rear sights when the bolt handle is in an unlocked condition but precluding sighting when the bolt handle is in locked position.
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| 156 | Gun having two shell latches with a plurality of cam followers | US3611608D | 1968-12-24 | US3611608A | 1971-10-12 | SEIBERLING THEOPHILUS K |
| THE GUN HAS TWO SHELL LATCHES IN THE RECEIVER CAVITY, ONE OF WHICH PREVENTS MORE THAN ONE SHELL FROM FEEDING INTO THE CAVITY DURING ONE ACTION CYCLE. THE OTHER IS HELD BY AN ACTION BAR DURING A PART OF THE CYCLE TO PREVENT A SHELL FROM FEEDING FROM THE MAGAZINE INTO THE CAVITY. THE GUN INCLUDES A CARRIER DOG FOLLOWER SPRING THAT IS WEAKER THAN CONVENTIONAL SPRINGS USED FOR THIS PURPOSE. BOTH IMPROVEMENTS CONTRIBUTE TO EASIER, SMOOTHER ACTION.
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| 157 | Automatic repeating firearm having a magazine transfer port and closure means therefor | US3541715D | 1968-07-01 | US3541715A | 1970-11-24 | LAGOS NICOLAOS |
| 158 | Breech bolt locking means comprising a resilient split ring having locking lugs thereon | US3540147D | 1968-07-25 | US3540147A | 1970-11-17 | CREAM DOUGLAS S; CREAM JOYCE S |
| 159 | Guide means for bolt-action firearms | US59420966 | 1966-11-14 | US3416253A | 1968-12-17 | OLOF LARSSON SVEN GUNNAR |
| 160 | Semiautomatic grenade launcher | US15325961 | 1961-11-15 | US3404479A | 1968-10-08 | SILSBY STANLEY D |
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