Abstract: A firearm suppressor includes a housing to be mounted to a firearm. The housing defines a lumen therein for receiving gases from the firearm. At least one stripper member is disposed in the lumen for engaging and deflecting the gases. At least one one-way flow element is disposed downstream of the at least one stripper member in gas flow direction for permitting a one-way flow of the gases. At least one decompression chamber is disposed downstream of the at least one one-way flow element for reducing energy in the gases. At least one vent valve is disposed downstream of the at least one decompression chamber for expelling the gases into the atmosphere. A mounting system and a mounting method are also provided.

Abstract: This invention relates to a fume extractor (10) for extracting fumes from a bore (12) of a barrel (14) of a gun and comprising an annular main reservoir (16); an annular inlet reservoir (18); and an annular auxiliary reservoir (20), all concentrically surrounding the barrel (14) and being in communication with each other and the bore (12). The inlet reservoir (18) is sandwiched between the main reservoir (16) and the barrel (14). The auxiliary reservoir (20) is sandwiched between the main reservoir (16) and the barrel (14) and is located adjacent the inlet reservoir (18) on a muzzle brake end thereof. The arrangement is such that the main reservoir (16) is pressurized when the gun is fired and such that the fumes in the bore (12) are extracted by the release of pressure in the main and auxiliary reservoirs (16) and (20), after the projectile has left the barrel (14).

Abstract: A baffle for use in a firearm suppressor, which increases the amount of sound and flash that are perceived upon the firing of a firearm upon which a suppressor is placed without substantial alteration to the power or accuracy of the firearm upon which the suppressor is attached. The baffle is made up of a generally hollow, central core defining open topped tube that is dimensioned so as to allow passage of a projectile through this core. This tube extends from an open front end backwards to an intersection with an inside surface of a rear wall, as well as to an intersection with a forward bulkhead. The bulkhead and the inside surface of the rear wall are located in different vertical and horizontal planes and define expansion chambers and reflection surfaces that alter the escape pattern of gasses out of the suppressor.

Abstract: An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel and for easily, quickly and reliably removing the noise suppressor or other auxiliary device there from through the novel ideal of providing two or more non equal relieved areas of thread. My invention also provides an internal o-ring to provide friction between the muzzle adaptor and the thread mount of a noise suppressor or other auxiliary device.

Abstract: A firearm suppressor includes a housing to be mounted to a firearm. The housing defines a lumen therein for receiving gases from the firearm. At least one stripper member is disposed in the lumen for engaging and deflecting the gases. At least one one-way flow element is disposed downstream of the at least one stripper member in gas flow direction for permitting a one-way flow of the gases. At least one decompression chamber is disposed downstream of the at least one one-way flow element for reducing energy in the gases. At least one vent valve is disposed downstream of the at least one decompression chamber for expelling the gases into the atmosphere. A mounting system and a mounting method are also provided.

Abstract: The present invention is directed to an adaptor for a suppressor comprising a gate for locking the suppressor on the muzzle and a threaded receiver for securing the suppressor to the firearm such that excessive play of the suppressor is removed. It is further directed to a method of securing a suppressor on a firearm by engaging a gate on an adaptor in a groove on a barrel of the firearm to lock on the adaptor, and any attached suppressor, and then tightening the suppressor and the adaptor on the barrel by threading the suppressor into the adaptor until excessive play is removed.

Abstract: A firearm barrel assembly having a gun barrel with a muzzle opening on a distal end, a shroud coaxially surrounding at least a portion of the barrel, the shroud having a distal portion extending beyond the muzzle opening defining a shroud front region having a distal end portion, a proximal portion extending proximally from the muzzle opening defining an annular region between the barrel and shroud, the shroud front region and annular region in fluid communication with substantially no obstruction between the shroud front region and the annular region, and a front wall disposed at the distal end portion of the shroud. The wall has an opening to allow passage of a projectile fired from the firearm.

Abstract: The present invention relates to a silencer easily cleanable inside. This silencer comprises a casing cylinder and a segment member housed in the casing cylinder to constitute a sound reducing means. The silencer further comprises a segment member fastening means for fastening the segment member to the casing cylinder, a gas inlet-side lid plate with a punched hole, which closes an opening at one end of the casing cylinder, and a gas outlet-side lid plate with a punched hole, which closes an opening at the other end of the casing cylinder. At least either one of the gas inlet-side lid plate or the gas outlet-side lid plate is adapted to be detachable from the casing cylinder.

Abstract: A sound suppressor for a firearm for reducing sound and flash levels upon the discharge of a firearm comprises a cylindrical housing, a proximal end cap with means for attachment to a firearm and to the cylindrical housing, a distal end cap with means for attachment to the housing, and a plurality of baffles positioned within the housing and between the proximal end and distal end caps of the suppressor. A separate cylindrical spacer element is positioned between the proximal end cap of the suppressor and the first baffle. This spacer provides axial positioning of the baffles within the cylindrical housing of the suppressor. The distal end cap of the suppressor is provided with a concentric circular hole or aperture for the projectile to pass through the end of the suppressor.

Abstract: 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 suppressor bore therethrough that is adapted to be aligned with a longitudinal axis of the gun barrel to allow a projectile from the gun barrel to pass therethrough. The suppressor bore is defined by at least one bore surface having at least one expansion groove disposed therein. The expansion groove may be partially-circumferentially disposed about the suppressor bore, or may include a plurality of expansion grooves. In another embodiment, a flash apparatus includes a suppressor portion having a plurality of longitudinally elongated members spaced apart about a circumference of the suppressor bore, each elongated member being separated from adjacent elongated members by a longitudinal slot, at least one longitudinal slot having non-parallel sidewalls.

Abstract: A sound suppressor for a firearm comprises a cylindrical housing having a proximal end with means for attachment to a firearm and to the cylindrical housing, and a distal end with means for attachment to the housing, and a plurality of baffle elements positioned within the housing between the proximal and distal ends of the suppressor. A plurality of spacer elements is positioned between the proximal and distal ends of the suppressor and between the baffle elements. The baffle element comprises a symmetrical conical baffle with a hemispherical shaped apex, with said apex being provided with a concentric hole. The symmetrical conical baffle is also provided with a plurality of steps or annular shoulders on the exterior of the conical baffle, and these annular shoulders increase in diameter with respect to their position on the exterior of the baffle and with respect to the distance from the hemispherical shaped apex of the baffle.

Abstract: Silencers are provided for a weapon having a combustion chamber and a barrel. The weapon is configured to launch a projectile with combustion gases generated in the combustion chamber. An exemplary silencer includes a proximal end and a distal end, the proximal end being configured for mounting the silencer to the barrel, the distal end being configured to allow the projectile to pass therethrough, and at least one vortex chamber disposed between the proximal end and the distal end. The at least one vortex chamber includes a circular peripheral wall for inducing a vortex on a portion of the combustion gases expelled from the combustion chamber during launch of the projectile. The vortex impedes flow of the combustion gases from the barrel such that acoustic energy associated with the launch of the projectile is dissipated.

Abstract: The present invention relates to a muzzle device for countering muzzle climb of a firearm muzzle 1, the muzzle device. The device comprises a chamber 5 having entry and exit apertures arranged for alignment with the path of a projectile expelled from the muzzle. The chamber is arranged to be asymmetric in relation to the projectile path, with a greater chamber volume being provided above the projectile path.

Abstract: A gun attachment adapted to fit to the subframe of a handgun and mount to a laterally extending member which can be a modified laterally extending member to extend beyond the lateral surfaces of the subframe, whereby an extension member which moves with respect to a base member applies a force to the trigger guard of the subframe, thereby creating a positive torque counteracted by engagement of a chamber region to the forward portion of the subframe whereby the gun attachment is rigidly attached to the subframe of the handgun without substantially modifying the same. The handgun attachment further comprises a forward member adapted to have load exerted thereon and transferring the load to the subframe and not to the slide, thereby maintaining the handgun in battery and allowing the handgun to be fired in a close quarter situation.

Abstract: A sound, flash and recoil suppressor for a firearm utilizing an outer tube or housing. Rear and front end caps are secured to the outer tube. A symmetrical blast baffle, and one or more asymmetrical baffles and spacers are typically positioned within the housing. The symmetrical blast baffle is the first baffle within the suppressor. It has a central hole, and one or more outer holes that are positioned near its periphery. Asymmetrical baffles consist of flat, elliptical plates that are positioned at an angle between 20 degrees and 80 degrees to the axis of the suppressor. The asymmetrical baffles may be arranged so that they are in parallel alignment, or they may be rotated slightly around the center of the bore's axis by up to 10 degrees right or left from each other.

Abstract: A method and apparatus for installing a fixture, such as a flash suppressor, to the threaded muzzle end of a firearm barrel. A chart or “timing wheel” is directly placed to the fixture when hand tightened to the firearm's muzzle end without any shims placed thereon, the chart identifying the appropriate shims to be placed on the barrel's threaded muzzle end portion for positioning the center of the flash suppressor vent substantially at top dead center with respect to the barrel when a predetermined torque is applied to the flash suppressor.

Abstract: An improved muzzle brake, attached to the end of a rifle barrel reducing the recoil of the rifle includes an internally threaded attaching end, engaging outer threads of a rifle barrel, a flattened projectile end, with an overall increasing taper from the attaching end to the projectile end, a flat upper surface which does not impede the sight line of the rifle, a flat lower surface, and two lateral surfaces including a first lateral oval vent, a second lateral oval vent and a third lateral oval vent, the first lateral vent defining a first flat brake plate having a first central bore, the second lateral oval vent defining a second flat brake plate having a second central bore and the third lateral oval vent defining a third flat brake plate having a third central bore penetrating through the projectile end, wherein a bullet fired from the rifle travels through the attaching end, the first central bore, second central bore and third central bore, while the gasses generated by the fired projectile are deflecte

Abstract: An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel, and in particular to a flash suppressor affixed to the muzzle end of the firearm, and for easily, quickly and reliably removing the noise suppressor or other auxiliary device therefrom.

Abstract: Our invention describes a muzzle or exit exhaust attachment for firearms or other thermodynamic heat engine jetting devices and incorporates magnetic field diversion design features not previously utilized to increase efficiency in the reduction of noise, flash, barrel whip, exhaust flame temperature and muzzle blast effect. Our invention advantageously applies relatively recent discoveries in the field of ballistic studies; know as transition ballistics, and mitigates the high velocity, high pressure exhaust gasses from the instant of existence through decline to atmospheric pressure with greater efficiency than prior art devices such as, silencers, suppressors, mufflers and sound absorber attachments.

Abstract: A gun barrel having a muzzle brake (2), especially for large-caliber guns, in which the muzzle brake (2) includes a tubular piece that has openings (16) around its circumference, and a jacket tube (4), which surrounds the tubular piece and has diametrically opposite gas-exit openings (17) that extend perpendicular to the bore longitudinal axis (15). To provide an arrangement comprising a barrel (1) and a muzzle brake (2) that minimizes the firing stresses on the parts of the muzzle brake (2) that are detachably connected to the barrel (1), the muzzle region (3) of the barrel (1) itself is used as a component of the muzzle brake (2. That is, the muzzle region of the barrel is provided with a plurality of openings (16) arranged in ring formation around the barrel (1), and the attached the jacket tube (4) is provided with slot-shaped gas-exit openings (17) over this muzzle region (3).

Abstract: A blast diffuser for a gun, comprising bore means having a surface defining a barrel through which a projectile may be discharged when the diffuser is attached, in use, to a gun barrel, the blast diffuser further comprising a primary chamber arranged around the outside of the bore means and a secondary chamber adjacent to an outer surface of the primary chamber, wherein a plurality of holes are arranged in the surface of the bore means to the primary chamber, and a plurality of holes are arranged in the outer surface of the primary chamber to allow passage of combustion gases from the primary many chamber to the secondary chamber, the secondary chamber further comprising an opening to allow the escape of combustion gases into the atmosphere.

Abstract: An apparatus for suppressing muzzle pop and/or crack in a Paintball Marker, (also known as a Paintball gun), or other compressed gas gun with an outer shell which connects to a proximal end cap with centered opening to be secured to a muzzle of a Paintball marker by an attachment piece, and a distal end cap with an centered exit opening. An internal structure that is centered along the longitudinal firing axis of the apparatus, between the proximal end cap and distal end cap, and being the bore for the proximal end opening for accepting the paintball marker barrel, and the distal exit opening in the center of the distal end cap for the exiting Paintball. The attachment piece and internal structure will accept a wide range of production paintball barrel diameters, as well as be self centering and aligning along the longitudinal firing axis of the apparatus.

Abstract: A catcher for receiving expended shell casings from a firearm having an ejection port as the firearm is discharged, the catcher includes a hollow housing and a lining. The hollow housing having a plurality of rigid walls, wherein one of the walls has an opening in communication with the ejection port when the catcher is mounted to the firearm for receiving the shell casings. The lining is fixed inside the rigid walls, wherein the lining includes an acoustic foam having a plurality of wedges and the wedges are configured to deflect the shell casings into the catcher.

Abstract: A noise abatement apparatus for a gun having a gun tube includes a plurality of generally spherical pressure vessels, with a first pressure vessel having an end adapted to be coupled to the gun tube. The pressure vessels are adapted for attenuating pressure waves caused by a firing of a projectile by the gun and for being mounted on a surface. At least two of the pressure vessels are in general alignment with one another. The apparatus may further include at least one connecting portion, a catcher for entrapping particulates and for permitting the projectile to pass, and at least one orifice plate or baffle for aiding in attenuating the sound. A noise abatement system includes the apparatus and a platform on which the apparatus is mounted. The system may further include an actuator for moving the apparatus along a track that is in physical communication with the platform.

Abstract: According to the invention a silencer for a firearm is arranged so that emitted gas, caught from the muzzle of the firearm after a shot, can both be caught and flow rearwards in the silencer after having been caught. This is accomplished in the way that the silencer comprises several separate chambers (1-5) extending longitudinally in the silencer. When the silencer is fitted to the firearm, there will be at least one chamber (1, 2) on either side of the muzzle of the weapon. The emitted gas is caught by holes (6) formed in a boundary surface between the chambers (1, 3, 4) in front of the muzzle and a central bore (16) through the silencer. The holes (6) extend radially through this boundary surface towards the bore (16) and are placed in rows which are spaced so that the holes (6) of each row will merge on the inside of the boundary surface towards the bore (16).

Abstract: A noise abatement apparatus for a gun having a gun tube includes a plurality of generally spherical pressure vessels, with a first pressure vessel having an end adapted to be coupled to the gun tube. The pressure vessels are adapted for attenuating pressure waves caused by a firing of a projectile by the gun and for being mounted on a surface. At least two of the pressure vessels are in general alignment with one another. The apparatus may further include at least one connecting portion, a catcher for entrapping particulates and for permitting the projectile to pass, and at least one orifice plate or baffle for aiding in attenuating the sound. A noise abatement system includes the apparatus and a platform on which the apparatus is mounted. The system may further include an actuator for moving the apparatus along a track that is in physical communication with the platform.

Abstract: Our invention describes a muzzle or exit exhaust attachment for firearms or other thermodynamic heat engine jetting devices and incorporates magnetic field diversion design features not previously utilized to increase efficiency in the reduction of noise, flash, barrel whip, exhaust flame temperature and muzzle blast effect. Our invention advantageously applies relatively recent discoveries in the field of ballistic studies; know as transition ballistics, and mitigates the high velocity, high pressure exhaust gasses from the instant of existence through decline to atmospheric pressure with greater efficiency than prior art devices such as, silencers, suppressors, mufflers and sound absorber attachments.

Abstract: Methods and apparatus for fastening a silencer on to a firearm are disclosed. In an example, a mounting device is disclosed which includes a housing adapted to be mounted to the barrel such that the housing is fixed against rotation relative to the barrel. It also includes a silencer holder rotatably mounted to the housing; and a fastener to secure the silencer holder to the housing at an angular position that substantially maximizes the firing accuracy of the firearm.

Abstract: A gun muffler and a noise abatement system for a large caliber gun having a gun tube include a catcher. The catcher, which is disposed within the pressure vessel for entrapping particulates and for permitting the projectile to pass, includes a plurality of columns adapted for being removably attached within a pressure vessel. The gun muffler includes a transition section fitted around the gun tube and engaging the gun tube for preventing the escape of residual combustion gases caused by the firing of a projectile by the gun. Attached to the transition section is at least one pressure vessel which defines a pressure chamber for containing residual combustion gases and attenuating pressure waves. The noise abatement system includes a horizontal concrete slab and a gun muffler, as that described above, adapted for being mounted on the concrete slab.

Abstract: A gun muffler and a noise abatement system for a large caliber gun having a gun tube include a catcher. The catcher, which is disposed within the pressure vessel for entrapping particulates and for permitting the projectile to pass, includes a plurality of columns adapted for being removably attached within a pressure vessel. The gun muffler includes a transition section fitted around the gun tube and engaging the gun tube for preventing the escape of residual combustion gases caused by the firing of a projectile by the gun. Attached to the transition section is at least one pressure vessel which defines a pressure chamber for containing residual combustion gases and attenuating pressure waves. The noise abatement system includes a horizontal concrete slab and a gun muffler, as that described above, adapted for being mounted on the concrete slab.

Abstract: According to the invention a silencer for a firearm is arranged so that emitted gas, caught from the muzzle of the firearm after a shot, can both be caught and flow rearwards in the silencer after having been caught. This is accomplished in the way that the silencer comprises several separate chambers (1-5) extending longitudinally in the silencer. When the silencer is fitted to the firearm, there will be at least one chamber (1, 2) on either side of the muzzle of the weapon. The emitted gas is caught by holes (6) formed in a boundary surface between the chambers (1, 3, 4) in front of the muzzle and a central bore (16) through the silencer. The holes (6) extend radially through this boundary surface towards the bore (16) and are placed in rows which are spaced so that the holes (6) of each row will merge on the inside of the boundary surface towards the bore (16).

Abstract: A sound suppressor for a firearm comprises a cylindrical housing having a rear end cap attached to the housing and having means for mounting to the muzzle of a firearm, a front end cap attached to the housing and having a centrally positioned aperture, and at least one baffle element positioned within the housing between the rear end cap and front end cap. The baffle element comprises a flat plate with an integral rearward-protruding cone with the cone having an entrance aperture and an exit aperture, with the cone having an elongated aperture that extends from the entrance aperture toward the flat plate. An initial coaxial spacer element is positioned between the rear end cap and the baffle element, with the initial coaxial spacer element having at least one gas port and at least one notch at an edge of the initial coaxial spacer element. Inner and outer expansion chambers are formed between the rear end cap, the initial coaxial spacer element and the baffle element.

Abstract: A device on the tube barrel of a tube weapon, more particularly on an aircraft cannon. It comprises a bottle, arranged on the muzzle end of the tube barrel by means of holding means, which serves to take up a shock wave at the muzzle. The bottle possesses a rear opening and following same in the direction of shooting a front opening, through which a fired projectile leaves the bottle. A blast divider tube, extending in the direction of shooting, is inserted into the front opening of the bottle, and serves as a passage through which the projectile passes. The blast divider tube also divides the bottle into an expansion space between the divider tube and the muzzle and a blind space toward the front.

Abstract: Methods and apparatus for fastening a silencer on to a firearm are disclosed. In an example, a mounting device is disclosed which includes a housing adapted to be mounted to the barrel such that the housing is fixed against rotation relative to the barrel. It also includes a silencer holder rotatably mounted to the housing; and a fastener to secure the silencer holder to the housing at an angular position that substantially maximizes the firing accuracy of the firearm.

Abstract: An assemblage of members held in a sleeve form a series of plenums which each have a reaction wall surface against which propulsion gasses generate anti recoil forces. Vents from the plenums direct propulsion gasses upwardly and outwardly to further counter recoil forces.

Abstract: A retainer for securing a silencer to a barrel of a handgun is disclosed. The retainer includes a counter-attachment on the barrel of the handgun for attaching the barrel to the retainer, and also includes a forward part for receiving the silencer. A bore extends through the retainer for receiving the counter-attachment, and the inner profile of the bore and the outer profile of the counter-attachment define at least one gas expansion chamber between the counter attachment and the bore when the counter-attachment is disposed in the bore. A lock on the retainer engages a collar on the counter-attachment, thereby releasably securing the counter-attachment in the bore.

Abstract: A silencer for a shotgun firearm comprises a metal body tube, a front end closure having a projectile exit guide, and a rear end closure having a barrel mounting element. A plurality of conical baffles with metal guide bushings are serially positioned in the body and arranged coaxially with the bore of the shotgun barrel. The guides are spaced apart a distance less than the axial length of the shot cup of the shotgun projectile. An expansion chamber is provided in the body rearwardly of the muzzle where the muzzle gasses are initially discharged into the body.

Abstract: A retainer for securing a silencer to a barrel of a handgun is disclosed. The retainer includes a counter-attachment on the barrel of the handgun for attaching the barrel to the retainer, and also includes a forward part for receiving the silencer. A bore extends through the retainer for receiving the counter-attachment, and the inner profile of the bore and the outer profile of the counter-attachment define at least one gas expansion chamber between the counter attachment and the bore when the counter-attachment is disposed in the bore. A lock on the retainer engages a collar on the counter-attachment, thereby releasably securing the counter-attachment in the bore.

Abstract: A method and an apparatus for suppressing muzzle blast and/or muzzle crack in a weapon. An apparatus for reducing muzzle blast upon discharge of one or more projectiles from a gun includes an outer shell and a first end cap adapted to be secured to a muzzle of a weapon and including provisions for detachably coupling to a first end of the outer shell. The apparatus further includes a second end cap adapted to be secured to a distal end of the outer shell and a plurality of baffles disposed between the first end cap and the second end cap. The plurality of baffles each comprise a bore section having an inner diameter no smaller than a bore of the muzzle and a baffle section coupled to the bore section, the baffle section extending from the bore section to the outer shell.

Abstract: A noise and recoil suppressor that is intended to be mounted within the terminal portion of a firearm barrel. The suppressor is a unitary structure having a cylindrical body and a plurality of chambers extending transversely therethrough and spaced-apart in the longitudinal direction of the device. The chambers are configured so as to restrain and slow the passage of the exhausting gases resulting from a bullet that has discharged and passing therethrough so as to suppress both the resulting noise and recoil from the discharging firearm. The suppressor is provided with external threads adjacent its outer end, and a firearm barrel into which the device is to be slidably inserted is suitably drilled-out and provided with internal threads for threadable securement of the device within the end of a firearm barrel. A second and shorter embodiment of the suppressor is disclosed that primarily functions as a recoil suppressor.

Abstract: A propulsion device including a fuel chamber and barrel constructed with off-the-shelf parts for propelling biodegradable objects. The fuel chamber includes a fuel nozzle actuator for receiving fuel from a pressurized gaseous container. The fuel chamber also includes an ignitor for igniting the fuel in the fuel chamber. The barrel may be interchanged with one including noise reducing holes.