| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Firearm construction | US36379573 | 1973-05-25 | US3889572A | 1975-06-17 | VORGRIMLER LUDWIG; HUPP GERHARD |
| A firearm particularly a short hand firearm for firing preferably case-less ammunition which is stored in magazines which are associated with the weapon includes means for transferring the ammunition successively from the magazine into a rotatable drum which has a plurality of angularly spaced cartridge chambers which extend axis parallel to the gun barrel. The cartridge drum is rotatably supported in the gun housing directly adjacent the loading end of the gun barrel and the separation joint between the gun barrel and the cartridge drum is sealed by a packing which is carried by the drum and which is pressurized in a direction to engage against the gun barrel by the gases of the propelling charge of the cartridge. The gun includes a slide which is movable backwardly and forwardly on the housing and which carries a breech mechanism in the form of a cylindrical member which is movable into and out of the cartridge chamber in accordance with movement of the slide. The slide also carries a follower which is biased into engagement with an axially extending groove on the cartridge drum. The follower moves during movement of the slide in an axial direction after movement along one guide groove through a transfer groove to the next guide groove in order to produce a rotation of the drum and the indexing of a new cartridge into alignment with the gun barrel bore. The follower holds the barrel in such alignment during the firing of the cartridge and effects the further indexing movement upon the next reciprocation of the slide. A gun also includes a misfire ejection means which is carried by the slide and is movable therewith to eject a blind cartridge from the cartridge chamber of the drum in the event of a misfire.
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| 162 | Firearm chamber seal | US28559872 | 1972-09-01 | US3799560A | 1974-03-26 | STEARNS B; ZINK G; GRAHAM D; SEEMAUO J |
| The provision of a lightweight, strong, arched seal with a substantially conical face and a plurality of spring fingers to insure full seating before ignition along the innermost annular junction of the seal with the chamber.
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| 163 | Obturator for firearm adapted to fire caseless or expendable ammunition | US3777614D | 1971-06-03 | US3777614A | 1973-12-11 | SCANLON J |
| An obturator for a firearm of the type designed to fire caseless or expendable case ammunition. The obturator can consist of at least two slit metal rings mounted on the bolt head of the firearm and arranged so that the pressure of the expanding propellant gases, generated during firing, compresses the rings so that about zero clearance is maintained around both the inner and outer periphery of the rings. The same type of ring may be used to seal around the firing pin.
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| 164 | Caseless ammunition and gun therefor | US3762328D | 1971-09-29 | US3762328A | 1973-10-02 | ROCHA J |
| A caseless small arms cartridge including a generally cylindrical solid propellant body having a bullet projecting from the front end thereof with an organic plastic seal ring and link element mounted on the bullet with the bullet projecting forwardly therebeyond. The seal ring has an outer surface of a diameter greater than that of the solid propellant body for providing a seal with a surrounding firing chamber and has an arm portion extending radially outward beyond the ring with a bore for receiving either the bullet of a second like cartridge for assembling a plurality of cartridges to provide a belt thereof or for engaging the loading plunger of the gun breech. The gun for firing such caseless cartridges comprises a receiver element, a barrel mounted therein, a novel floating firing chamber element mounted in the receiver element for limited movement between a loading position away from and a firing position toward the barrel, and firing means for moving the floating firing chamber element to its firing position. The novel floating firing chamber has an enclosed bottom with abutment means thereon for contacting the primer of the cartridge and an open forward end adjacent the barrel for receiving the cartridge body within the chamber with the bullet within the barrel when the floating firing chamber is in its loaded position. The firing means moves the firing chamber to its firing position to drive the abutment means into contact with the primer to fire the cartridge.
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| 165 | Obturator-extractor device for firearms | US3738223D | 1971-11-23 | US3738223A | 1973-06-12 | POST J; REED F |
| An obturator-extractor provides safe firing of cartridges having cases made from lightweight materials, such as aluminum, plastics, or other non-metallic materials, in a firearm with a reciprocating bolt comprising a conoidal bolt head that is receivable by a mating chamber in the barrel breech when the bolt is in locked battery position. A single piece obturator-extractor device is mounted as a shell on the bolt head and is comprised of convexly formed surfaces which make sealing contact with the barrel chamber and a tubular section which is receivable by a recess formed in the head to receive the rear end of the case. An extractor of cantilever configuration is provided on the tubular section of the obturator for engagement with the extractor groove in the case. In an alternate embodiment, the obturator device includes a dish-shaped washer and a truncated conoidal sleeve which are mounted in the front end and circumferential wall of the barrel chamber, respectively, to make resilient, obturating contact with the bolt head and the barrel chamber when the bolt is in locked battery position. The extractor is a separate split tubular member which is mounted in the head recess and which is provided with a chordal claw of torsion bar configuration.
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| 166 | Cartridge | US3728966D | 1968-05-07 | US3728966A | 1973-04-24 | WOODRING W |
| A cased cartridge for firearms in which the cartridge casing is expelled through the muzzle along with the projectile or projectiles to provide the advantages of caseless ammunition in a cased round.
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| 167 | Breech seal for caseless ammunition firearm | US3728938D | 1971-04-16 | US3728938A | 1973-04-24 | NELSON B; SCIBOR A |
| A truncated cone insert, positioned in a chamber in the breech block, and having a central bore for receiving the bolt, the reduced end of the cone being adjacent to the ammunition charge, and arranged to be radially compressed by the gas pressure, when fired, to seal the breech.
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| 168 | Caseless ammunition firing system | US3722123D | 1971-08-25 | US3722123A | 1973-03-27 | PARISI F |
| A system for feeding and firing ammunition of the variety having no casing. Sealing of the firing chamber is accomplished by providing a reciprocating bolt assembly having a bolt projection which is telescopingly received in the barrel bore. The projection picks up and seats the projectile in the firing chamber. The propellant charge may be secured to the projectile, or may be separately loaded in the bolt mechanism. In the latter case, a fluid passage extends from the propellant chamber through the bolt projection to the projectile chamber.
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| 169 | Breech mechanism with interchangeable chamber inserts for caseless and case-type cartridges | US3656250D | 1970-04-21 | US3656250A | 1972-04-18 | BROWN DANIEL M |
| A breech mechanism for firearms includes a chamber insert adapted to be secured in the camber of a rifle or the like for easily converting the rifle to fire either caseless cartridges or standard case-type cartridges depending upon the insert used. A modified bolt is provided for use with the chamber insert.
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| 170 | Combination projectile guide and firing chamber seal | US3613500D | 1969-02-18 | US3613500A | 1971-10-19 | WARIN FRANCIS J |
| A firing chamber front end seal having two concentric tubular members with out-turned flanges at their leading ends. The flanges are adapted to be seated in a counterbore in the end of the weapon barrel. The inner diameter of the inner member is equal to the diameter of the barrel bore and concentric therewith. The inner member has a substantial wall thickness and strength with an internally frustoconically outwardly tapered end opposite the flanged end. The inner member is effective to act as a projectile guide to align a moving projectile with the weapon barrel. The outer member has a wall thickness less than the inner member and the end remote from the flanged end is adapted to be expanded by pressure of the propellant gases into sealing engagement with the inner diameter of the firing chamber thereby preventing gases from escaping from the chamber at the interface of the chamber and barrel.
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| 171 | Gun for caseless ammunition in which a slidable sleeve defines the chamber | US3547001D | 1968-06-13 | US3547001A | 1970-12-15 | STONER EUGENE M |
| 172 | Device and method for chambering telescoped caseless ammunition | US3501858D | 1967-12-28 | US3501858A | 1970-03-24 | HENSLEY PERRY J; MACK JAMES O JR |
| 173 | Open chamber breech mechanism with scarfed firing strap | US3446115D | 1967-10-06 | US3446115A | 1969-05-27 | FEDOWITZ FRANK JR |
| 174 | Firearm having a collar for cleaning the seat of an internally sealed breech block | US64052267 | 1967-05-23 | US3359857A | 1967-12-26 | ROBINSON WILLIAM A |
| 175 | Breech obturating means for gun with transversely slidable breechblock | US54551866 | 1966-04-21 | US3355986A | 1967-12-05 | GIULIANO D ANDREA |
| 176 | Breech seal for firearms utilizing caseless ammunition | US53807866 | 1966-03-28 | US3354780A | 1967-11-28 | MARCUS RAMSAY |
| 177 | Bartels | US3125928D | US3125928A | 1964-03-24 | ||
| 178 | Breech sealing means for automatic firearms adapted to fire caseless ammunition | US23029762 | 1962-10-12 | US3114290A | 1963-12-17 | HARVEY EARLE M; REED FREDERICK P |
| 179 | Traversely swinging gun breech with obturating seal | US607660 | 1960-02-01 | US2998755A | 1961-09-05 | THIERRY ROBERT J |
| 180 | Breech block with quadruple thread | US81256759 | 1959-05-11 | US2960916A | 1960-11-22 | REX MARTIN A |
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