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3669 results about "Gun barrel" patented technology
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A gun barrel is a crucial part of gun-type ranged weapons such as small firearms, artillery pieces and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is introduced (via propellant combustion or mechanical compression) behind a projectile in order to propel it out of the front end (muzzle) at a high velocity. The hollow interior of the barrel is called the bore, and the diameter of the bore is called its caliber, usually measured in inches or millimetres.
Multi-fire push rod stapling device
Owner:TYCO HEALTHCARE GRP LP +1
Hypodermic implant device
InactiveUS20030004457A1Avoid spreadingLess-costly disposalMedical devicesInfusion needlesSubcutaneous implantationImplanted device
A hypodermic implant device, comprising a barrel; an upper piston segment engaged with an inner wall of the barrel; an axially aligned needle extendably distally out of the barrel for insertion into an object when the upper piston segment is moved distally within the body; a lower piston segment push rod in alignment with the needle, so that upon distal movement of the lower piston segment, the push rod moves distally through the needle expelling a releasable implant housed in the needle; and a means for retraction of the needle into a needle receptacle in the barrel.
Owner:GRAY PLANT MOOTY MOOTY & BENNETT PA
High accuracy projectile
InactiveUS6070532AMinimizes bullet jumpImprove accuracyAmmunition projectilesTraining ammunitionEngineeringGun barrel
A projectile having improved accuracy when fired over long ranges is formed from a monolithic block of a copper alloy. Proceeding from a nose to a heel of the projectile, is a fore portion with arcuate side walls, a body portion of substantially constant cross-sectional area that minimally contacts a rifled gun barrel, a drive band having a diameter effective to seal propellant gases and an aft portion that continuously decreases in diameter terminating at the heel. A cylindrical bore extends from an opened end at the nose to a closed end proximate to a transition plane between the fore portion and the body portion.
Owner:OLIN CORP
Quick connect base plate for powder actuated tool
A tool is provided with a barrel having a piston for driving a fastener into a substrate, the barrel being mounted for axial movement within a body of the tool and a nose piece being mounted forwardly of the barrel and being at least partially encapsulated by a base plate that connects to the receiver of the tool which encloses the barrel and piston, the present invention permiting ease of assembly and disassembly of the muzzle of the tool—the nose piece and base plate—by making the connection between the base plate and the receiver with a retainer element.
Owner:EADES CHAD +1
Muzzleloading firearm projectile
InactiveUS7380505B1Easy loadingReasonable alignmentAmmunition projectilesTraining ammunitionEngineeringCopper
A muzzle loading firearm projectile is disclosed that is composed of a multi diameter, hollow base solid copper bullet, the rear cavity filled with a material of low-density, and a gas pressure seal that separates the bullet from the powder charge. The majority of the bullet shank has a diameter less than the bore diameter of the firearm barrel to allow for ease of loading and alignment of the barrel and bullet axis; a narrow ring of material larger than the barrel bore diameter but less than the groove diameter is located at the junction of the bullet shank and nose profile that centers the bullet in the barrel and positively positions the bullet over the powder charge regardless of orientation of the firearm. The low-density material filling the rear cavity of the bullet acts as an expansion medium when impacted by the rear gas seal during the firing process causing the hollow shank of the bullet to expand and lock into the barrel rifling.
Owner:SHIERY JEFFREY C
Modular sleeve yoke
A Swan universal receiver sleeve attached to the top of a firearm upper receiver and extended forward above the firearm barrel to a position just short of the firearm front sight. The underside of the rear portion of the sleeve is fixedly attached to the receiver top. The underside of the forward portion of the sleeve has an upper handguard piece attached thereto. A bottom handguard piece is fitted about the bottom of the gun barrel and is attached to the upper handguard piece. The handguard pieces are not physically connected in any way to the gun barrel. The sleeve is self supported by the connection of the rear portion underside to the receiver top. A special yoke is inserted about the barrel nut of the firearm to which the modular sleeve is attached. The special yoke reinforces the modular sleeve while keeping the firearm barrel free floating.
Owner:SWAN RICHARD E
One-piece barrel assembly cart
A one-piece barrel assembly cart includes a right assembly cart base connected with a left assembly cart base and at least three stabilizer rings that are attached to the assembly cart base. The one-piece barrel assembly cart may be used to stabilize a tapered cured composite barrel, for example the large fuselage barrel of the aft section of a large new generation aircraft, such as a 7E7 Boeing airplane. A modular assembly cart includes at least two identical modules. Each of these modules includes a cart base and a stabilizer ring. The diameter of the inner surface of the stabilizer ring may vary as needed. Other modules including a fuselage support may be added. By providing modular assembly carts any shape and size of a one-piece composite barrel may be stabilized after curing of the composite material.
Owner:THE BOEING CO
Firearm laser training system and method employing modified blank cartridges for simulating operation of a firearm
InactiveUS6935864B2Improve securityEasy to adaptSighting devicesAiming meansLaser transmitterLaser light
A firearm laser training system according to the present invention includes a laser transmitter assembly and a cartridge adapter assembly, while employing modified blank cartridges to simulate firearm operation. The modified blank cartridges each have a quantity of explosive substance sufficient only to cycle the firearm. The laser assembly is configured for attachment to a firearm barrel and front sight and emits a beam of laser light toward a training system target in response to actuation of the firearm trigger. The laser beam is generally in the form of a pulse having a duration sufficient for the system target to detect a beam impact location. The cartridge assembly is disposed within the firearm barrel to adapt the firearm for compatibility with the modified blank cartridges for simulating firearm operation.
Owner:EOTECH LLC
Pneumatic nail gun
A pneumatic nail gun has a body, a handle extending from one end of the body, a barrel mounted on the other end of the body, a magazine pivotally connected to the barrel and assembly for positioning the magazine arranged in the body. With such a pneumatic nail gun, the magazine can be rotated and positioned to a desired angle relative to the barrel. Consequently, the pneumatic nail gun can accommodate different types of nails without changing to a different magazine.
Owner:REXON IND CORP LTD
Injection devices
A one-shot throwaway injection device has a barrel that houses a syringe initially in a retracted state held back by a trigger against a drive spring. Actuation of the trigger causes the syringe to be thrust forwards by the spring acting on its plunger until the needle is fully projecting, and then the dose is ejected by the final expansion of the spring. Release of the trigger allows a return spring to urge the syringe back and retract the needle. The barrel is a unitary plastics moulding of two longitudinally split halves hinged together with the trigger integrally formed with one of these halves. The other components and the syringe are positioned in one half which is then closed up and fastened to the other half to complete the barrel.
Owner:OWEN MUMFORD
Modular sleeve
InactiveUSRE40216E1Facilitate internal fasteningSmall sizeSighting devicesButtsGun barrelEngineering
A Swan universal receiver sleeve attached to the top of a firearm upper receiver and extended forward above the firearm barrel to a position just short of the firearm front sight. The underside of the rear portion of the sleeve is fixedly attached to the receiver top. The underside of the forward portion of the sleeve has an upper handguard piece attached thereto. A bottom handguard piece is fitted about the bottom of the gun barrel and is attached to the upper handguard piece. The handguard pieces are not physically connected in any way to the gun barrel. The sleeve is self supported by the connection of the rear portion underside to the receiver top.
Owner:SWAN RICHARD E
Piston assembly for syringe
InactiveUS20050010175A1Reduce connectionsReduce chanceIntravenous devicesEngineeringParylene coating
A piston assembly (10) for a flowable materials container having a barrel (14) defining a fluid containing chamber (16). The barrel (14) is made of a body of a cyclic olefin containing polymer or a bridged polycyclic olefin containing polymer. An elastomeric piston (24) is slidably attached to the barrel (14) and provides a seal of the chamber. The piston (24) has a parylene coating on an outer surface thereof to reduce the necessary break away force. A plunger (22) is also provided and has a second mating member (42) removably connecting the plunger to a first mating member (44) of the piston. The first mating member (44) has a series of threads having a major diameter and a minor diameter, and the second mating member (42) has a series of threads having a major diameter and a minor diameter. The major and minor diameters of the second mating members (42) is appreciably smaller than the major and minor diameters of the other of the first mating member (44) to provide ease of connection.
Owner:BAXTER INT INC
Device for manually controlling delivery rate of a hypodermic syringe and syringe having same
ActiveUS7611495B1Reduce manufacturing costAmpoule syringesMedical devicesHand heldMechanical advantage
An injection retarder for mechanically / manually reducing the rate of delivery of a hand-held hypodermic syringe and a syringe having same are provided. The injection retarder and syringe include means for selectively slowing a rate of progress of the plunger into the barrel. For example, a thumb tip rest is provided against which the thumb may be braced, thereby providing additional mechanical advantage and much finer manual control of the rate of injection. Alternatively, a set of teeth and an opposing mating tooth or pawl are provided which increase friction and slow the progress of the plunger.
Owner:GIANTURCO MICHAEL C
Skeet and bird tracker
A device receives an initial velocity of a projectile, determines a barrel position and a barrel orientation of a barrel, determines a target position, a target velocity and a projected target trajectory in relation to the barrel position and barrel orientation, determines a lead position in front of the projected target trajectory of an interception of the projectile at the target and presents the lead position to a user device.
Owner:TAKE AIM TECH IP LLC
Paintgun with a revolving disc for feeding paintballs
ActiveUS6915792B1Increase firepowerDischarge rate can be muchAmmunition loadingCompressed gas gunsCircular discEngineering
The invention relates to a paintgun having a barrel assembly with a barrel and a firing mechanism for paintballs; a trigger assembly connected with the barrel assembly for actuating the firing mechanism; and a revolving disc for feeding paintballs interposed between the barrel and the firing mechanism; a series of uniformly spaced paintball holes being formed at the rim of the revolving disc that is rotatable by a driving apparatus to bring the paintballs within the paintball holes to a discharge area coaxial to the barrel for discharging the paintballs; and a paintball adjacent to the revolving disc and the firing mechanism within the barrel assembly being provided for storing the paintballs disposed. Meanwhile, the paintball container includes a guiding slope for directing the paintballs into the paintball holes. The revolving disc with the paintballs is rotatable one after another to the discharge area.
Owner:SHENG CHIH SHENG
Safety syringe needle device with interchangeable and retractable needle platform
InactiveUS6878131B2Eliminate generationAvoid pollutionInfusion syringesPharmaceutical containersAxial pressureEngineering
The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. These complementary surfaces afford initial resistance to further axial movement of the plunger toward the adapter, signalling the user that further axial pressure will permanently lock the plunger and adapter to one another whereby, upon application of full axial pressure on the plunger, the complementary surfaces of the plunger and adapter permanently lock to one another to enable joint unitary movement of the plunger and adapter together with the needle carried by the adapter into the barrel. The adapter includes vent passages communicating between the central passage through the adapter and the annular space whereby air can be vented from the barrel after receiving fluid within the barrel and prior to injection. Thus, the syringe may be oriented in a vertical position needle end uppermost with the vent passages forming the most superior portion of the barrel interior whereby air may be vented.
Owner:INVIRO MEDICAL DEVICES LTD
Method and apparatus for propelling a pellet or BB using a shock-sensitive explosive cap
A method and apparatus for expelling a projection from an air gun by striking a primer cap filled with a shock-sensitive explosive compound, causing the cap to explode, which in turn rapidly compresses a volume of air located between the projectile and the cap, causing the projectile to exit from the barrel of the air gun at a high rate of speed.
Owner:GUNSANDMORE INFO
Quick change infinitely adjustable barrel nut assembly
InactiveUS6959509B2Quickly and easily changeEasy to assembleCartridge extractorsWeapon cleaningBarrel ShapedEngineering
The present invention is a quick change and torque controlled barrel nut assembly for use on a variety of firearms. The invention is made up of a generally cylindrically shaped barrel nut configured to adaptably connect a barrel to a firearm, a gas tube ring that is configured to fit over the barrel nut and a locknut that holds the gas tube ring in place. This invention allows the gun barrel to be rapidly connected by connecting the barrel to the receiver portion of a firearm, placing the freely rotating stabilizing gas ring in a desired position and tightening the locknut to hold the stabilizing gas ring in place.
Owner:VAIS GEORGE
Method of forming metal coating with hvof spray gun and thermal spray apparatus
InactiveUS20050199739A1Function increaseLiquid surface applicatorsMolten spray coatingThermal sprayingOxygen content
There are provided a thermal spraying method and a thermal spraying apparatus therefor, in which a gas shroud is disposed in an HVOF thermal spraying gun barrel, the velocity of metallic particles is energized and accelerated with respect to the metallic particle to be thermally sprayed from the gun, and inert gas is supplied into the space defined inside of the shroud through a circumferential slit formed in such a manner as to shield the metallic particles from the atmosphere so as to collide with the surface of a base member, thereby forming a thermally sprayed dense film having a small oxygen content without overheating the base plate by an HVOF method.
Owner:NAT INST FOR MATERIALS SCI
Stabilized rifle barrel and rifle
A firearm includes a support block having a forward end and a rearward end, and carrying a receiver on a top surface thereof. A rearward barrel guide having a thrust coupling extending radially outwardly therefrom, the thrust coupling engaging an engagement element located at the forward end of the support block, thereby aligning the rearward barrel guide with the support block. Also provided is a barrel having a breech end and a muzzle end, the breech end is received through the rearward barrel guide and coupled to the receiver. A forward barrel guide is fixed to the barrel intermediate the muzzle end and the breech end. A handguard assembly is received over the barrel and coupled to the rearward barrel guide and the forward barrel guide, stabilizing the barrel.
Owner:RBD TECH
Handguard system integrated to a firearm
Existing floating handguards have the problem of adding size and weight to M16 style gas operated rifles because these tubular handguards attach to a relatively large diametral surface which lies outward of a firearm operating member or gas tube. Existing handguards are mounted thus so that the handguard inside surface will mechanically clear the gas tube. The present invention solves this problem by providing a handguard system integrated to a firearm, the system having a one-piece extended barrel nut with a smaller diameter outer surface configured to lie inward of the gas tube, between the gas tube and the barrel. A one-piece generally tubular handguard has an outer surface with a longitudinal rib and an inner surface with an inner diameter and a groove which is aligned with the rib. The handguard inner diameter engages the barrel nut outer surface and the groove provides clearance for the gas tube. The rib is configured to maintain the rigidity of the handguard adjacent the groove.
Owner:TANKERSLEY JEROME BENEDICT
Perforating system with shaped charge case having a modified boss
A perforating gun having a charge case with a boss element partially circumscribing Optionally the pair of bosses may be included that are substantially symmetric about the axis of the charge case. Forming a shaped charge with such a charge case allows for gun strips to be formed with increased web material between adjacent shape charges in the gun strips. The increased web material provides for a more structurally sound gun tube, especially when dealing with high density charges. Notches may be provided in the gun tube on the outer radius of the holes formed to receive the shape charges, the notches are to be aligned with the bosses on the outer periphery of the shaped charge case. This also may orient the charge cases so they are pre-aligned for ready connection to an associated detonation cord.
Owner:BAKER HUGHES INC
Top opening, modular top rail, multi-rifle adaptable free float rail adaptor system (ARM-R)
Owner:LWRC INTERNATIONAL
Top opening, modular top rail, multi-rifle adaptable free float rail adaptor system (arm-r)
ActiveUS20120042557A1Minimizing transferImprove ventilationCartridge extractorsWeapon cleaningReturn-to-zeroHeat transmission
An improved Rail Adaptor System / Rail Accessory System (RAS) which attaches to a firearm. The rail is top opening, modular, and free floats the barrel. Provided is a rigid, lightweight, strong platform for mounting firearm accessories. Heat transmission from the barrel assembly to the user is limited. The user is also protected from ventilated gases originating from the operating system. A quick detachable top rail section is provided so that that gas system may be easily accessed. This removable top section of the rail is what makes this device unique because the RAS may be installed without removing the barrel, gas system, front sight base, flash hider or the barrel nut. The herein described RAS is adaptable to a wide variety of firearms with the use of conversion parts. The top rail “returns to zero” on reinstallation allowing the remounting of various optics and electronic gun sites without the need to realign them.
Owner:LWRC INTERNATIONAL
Multi-charge gas-cylinder pistol
InactiveUS6494194B2Improve reliabilityHigh performance featuresFiring/trigger mechanismsAmmunition loadingGas cylinderMainspring
Owner:ZAKRYTOE AKTSIONERNOE OBSHCHESTVO GRP ANICS
Barrel nut assembly and method to attach a barrel to a firearm using such assembly
ActiveUS20140033590A1Minimizes and eliminates and transfer of torqueEfficient compressionPositioning apparatusMetal-working holdersCombined useGun barrel
A fixture for use with AR15 / M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15 / M16 type barrel nut, as well as other designs as disclosed herein.
Owner:LWRC INTERNATIONAL
Thermally isolated anchoring system
InactiveUS20110047919A1Preserves the insulation integrityOvercome problemsConstruction materialBuilding reinforcementsHigh intensityEngineering
An anchoring system for cavity walls is disclosed and includes a stud-type wall anchor and veneer tie. The stud is comprised of high-strength, nonconductive thermally-isolating components that maintain the insulation R-values. The stud has a driver head, dual-diameter barrel, and driven tip. A flange at the juncture of the two barrels houses an interior seal; a flange under the driver head, an exterior seal. The smaller diameter barrel is coextensive with the drywall installation; the length of the larger diameter barrel, with the rigid insulation. The interior seal seals the insertion point into the drywall installation; the exterior seal, the opening of the anchor-receiving channel. The interior seal and the larger barrel of the anchor fill the anchor-receiving channel and stabilize the wall anchor. The wall anchor is clamped in place by the seals. The anchor operates with various of veneer ties.
Owner:MITEK HLDG INC
Dual seal anchoring systems for insulated cavity walls
ActiveUS20080141605A1Prevent air infiltrationPrevent water penetrationConstruction materialStrutsEngineeringCavity wall
An anchoring system for cavity walls is disclosed. The system includes a stud-type wall anchor and a wire formative veneer tie. The stud has a driver head, a dual-diameter barrel, and a driven tip. A flange at the juncture of the two barrels houses an interior seal; and a flange under the driver head, an exterior seal. The smaller diameter barrel is coextensive with the drywall installation; and the length of the larger diameter barrel, with the rigid insulation. The interior seal seals the insertion point into the drywall installation; and the exterior seal, the opening of the anchor-receiving channel. The interior seal and the larger barrel of the anchor fill the anchor-receiving channel and stabilize the wall anchor. Also, the wall anchor is clamped in place by the seals. The stud-type anchor operates with a variety of veneer ties for different applications.
Owner:HOHMANN & BARNARD INC
Gas-operated guns with demountable and interchangeable barrel sections and improved actuation cylinder construction
InactiveUS20050115398A1Effectively isolates the barrel from the mechanical systemReliability and cleanlinessWeapon componentsAutomatic controlSemi automatic
Gas-operated automatic and semi-automatic guns are improved by having a bisectional barrel with demountable and interchangeable muzzle sections wherein the breech section has a rifled bore and by having an actuation cylinder mounted to the receiver instead of the barrel. The muzzle sections are connected to the breech section via a tapered plug that locks into a tapered socket of the breech section. A port in the tapered plug joins with a port in the tapered socket to deliver gas from the barrel bore to the actuation cylinder and the tapered plug port in each interchangeable muzzle section is sized to provide automatic control of the proper amount of gas to cause the gun to function at its best rate based on the ammunition, silencer and length of the particular muzzle section selected by the user.
Owner:KNIGHT'S ARMAMENT COMPANY
Barrel nut assembly and method to attach a barrel to a firearm using such assembly
ActiveUS20140075817A1Efficient compressionSecurely holdNutsMetal working apparatusCombined useEngineering
A firearm barrel nut assembly including a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.
Owner:LWRC INTERNATIONAL
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