Matches 1 - 50 out of 110 1 2 3 >
Match Document Document Title
7152357 Composite firearm barrel assemblies  
A firearm barrel includes an elongate metal insert member and a rigid sleeve surrounding the insert member along a majority of the length of the insert member. A casing is formed around at least a...
6779716 Rifled weapon engraver and scanner  
A computer-controlled laser etching probe etches a firearm-identifying indicia such as a barcode encoded serial number into the barrel and breech of a bore of a firearm. Owner registration data...
6769209 Removable interior barrel adaptable in an interior of an original barrel for ammunition or pellets for sport rifles  
A removable inner barrel apparatus has a rifle with barrel extending therefrom, an inner barrel having an end through which ammunition can exit, a pressure nut removably fastening the barrel of the...
6739083 Runout correction rifle barrel  
A rifle barrel for realigning a projectile which is propelled through the barrel by gas pressure, the barrel comprising: a bore having a bore diameter through which a projectile may travel; rifling...
6615702 Gun barrel  
A gun barrel for a gun has an elongated tube with an axial bore extending completely through the tube from the breech end to the muzzle end. The tube and the contact surface in the axial bore,...
6574898 Firearm frame and barrel assembly  
Revolver frame and barrel assembly including a frame, a barrel shroud carrying a sight and keyed in sight alignment with the frame, and a generally cylindrical barrel having a rifled bore and...
6497065 Firearm barrel having protective sleeve  
A firearm barrel has components made of different materials. The barrel includes an elongate metal insert member. A rigid sleeve surrounds the insert member along a majority of the length of the...
6487951 Apparatus and method for firing a projectile  
An apparatus and method for firing a projectile in which one part of the projectile rotates and the other part of the projectile does not rotate where is it used for delivering a line. The...
6467213 Method of providing a weapon barrel with an internal hard chromium layer  
A method of providing an inner surface of a weapon barrel with a hard chromium layer includes the steps of forming the hard chromium layer on the inner surface by galvanic separation; and...
6427373 Gun barrel rifling  
The rifling in a barrel of a firearm is modified in proximity to the muzzle to reduce the radial difference between the land diameter and the groove diameter to urge a bullet to expand fully into...
6408557 Apparatus for producing rifling grooves in a weapon barrel  
An apparatus for producing rifling grooves in a weapon barrel, in which a drawing head ( 1 ) that rotates about its longitudinal axis ( 5 ) is drawn through the respective weapon barrel by a...
6374720 Firearm with an expansion chamber with variable volume  
A device that is capable of adjusting the volume available to combustion gases following their expansion in a firearm includes (i) an expansion chamber connected to the barrel of the firearm...
6324780 Fluted gun barrel  
A gun barrel having a generally hollow cylindrically-shaped barrel with a first end, a second end, an inner surface and an outer surface. The inner surface defines a plurality of internal spiral...
6266908 Firearm frame and barrel assembly, method of assembling and assembly tool  
Revolver frame and barrel assembly including a frame, a barrel shroud carrying a sight and keyed in sight alignment with the frame, and a generally cylindrical barrel having a rifled bore and...
6189431 Small caliber gun barrel  
A composite barrel for a firearm comprising a substantially metallic liner and fiber reinforced resin, in which the fiber reinforced resin is under compression.
6170187 Weapon tube  
A rifled weapon tube (1), from which spin-stabilized projectiles (8) with driving bands (9) are fired. In order to reduce manifestations of wear on a driving band (9), it is known to stabilize a...
6085630 Firearms  
The construction and arrangement of the projectile bearing surface interfaces rearward and forward of a recessed surface chamber of the projectile interface conjointly with the interfaces of bore...
5974941 Semi-automatic revolver  
An automatic revolver has a body, a barrel arranged in the body and having an inner passage provided with a thread-like formation, an ammunition-containing element from which a bullet is displaced...
5974641 Method of shaping a muzzle-loading firearm barrel  
A firearm barrel having a barrel bore in a barrel bore entrance end is arranged to receive a conical milling tool directed to shape the conical entrance into the barrel bore entrance end, with a...
5915937 Primarily independent composite/metallic gun barrel  
A substantially nonbonded composite/metallic gun barrel is disclosed. The gun barrel has a metallic liner and a composite casing disposed thereabout. Unlike composite/metallic gun barrels of the...
5844162 Muzzle venting in muzzleloading rifles  
A muzzle-loading rifle having vents cut into the barrel near its muzzle. The rifling is timed with respect to the placement of the vents such that all vents are located within the rifling grooves....
5824944 Metallic slug for industrial ballistic tool  
A projectile for an industrial ballistic tool is formed from zinc or a zinc based alloy. The projectile has symmetry about a longitudinal axis and a rear portion of the projectile engages rifling,...
5782030 Barrel for muzzle loading firearm  
A barrel for a muzzle loading firearm. The inner cylindrical surface which defines the bore of the barrel has a main portion which is provided with rifling and a muzzle portion which is integral...
5758446 Fired bullet identification system  
The present invention relates to the fire arm industry and more particularly to a system that impresses a bar type code into the lead bullet that has been fired from a gun. The identifying markings...
5737863 Muzzle loading firearm projectile  
A muzzle-loading firearm designed to utilize an ignition device carrier and to discharge projectiles having pre-cut rifling. The ignition device carrier serves to facilitate easy installation and...
5666756 Shotgun having light weight interchangeable barrel tubes with improved fit  
A tubular insert for a shotgun such as an over/under shotgun provides a chamber end portion with a smooth outer surface. In order to achieve a good fit between the tubular insert at the chamber end...
5664359 Rifled weapon barrel and method of making the same  
A weapon barrel includes a muzzle, a breech, a chamber at the breech and a rifling, formed of alternating lands and grooves, extending along an interior of the weapon barrel. The lands have a...
5657568 Composite/metallic gun barrel having a differing, restrictive coefficient of thermal expansion  
A composite/metallic gun barrel is disclosed having a metallic liner and alternating first and second groups of fibers wrapped about the liner, the first groups being disposed in a first...
5565642 Compressed gas weapon  
A compressed gas weapon (10) is configured in the breech portion (18) of its barrel (12) to accommodate a projectile (24) in a position of readiness to fire and to reproducibly caliber the...
5435089 Muzzle loader barrel having a counter bore to facilitate loading of a slug  
A rifled muzzle loader barrel having a cylindrical counterbored muzzle end with the counterbore having a diameter substantially equal to an outer diameter defined by the rifling and substantially...
H001365 Hybrid gun barrel  
A new hybrid gun barrel can be successfully used with modern hotter propellants without unacceptable erosion of the breech section of the gun barrel and while retaining the accuracy and ballistic...
5337504 Gun tube  
The present invention relates to a gun tube having a spin curve with a variable spin angle as well as a rifling force R(x) over the path of the projectile (x) through the gun tube when a projectile...
5212328 Nonmetallic gun barrel  
The invention is a nonmetallic gun barrel having a a longitudinally rigid tubular exterior capable of radial elastic deformation upon passage of a projectile therethrough. Liner segments fixed at...
5191165 Ordnance barrels  
The disclosure relates to a method of producing rifled, non-metallic barrels of composite material in the form of a fiber-reinforced thermosetting matrix for rocket and grenade launcher ordnance,...
5155291 Barrel assembly for home security weapon  
A shotgun barrel assembly for producing a prematurely enlarged shot pattern has an axially position on barrel and a barrel extension mounted in fixed position on the forward end of the barrel. The...
5077926 Gun barrel equipped with optimized rifling  
In order to improve the service life of prior art gun tubes and to improve the ballistics of a projectile fired through them, the present invention provides a gun tube with an optimized variable...
4924614 Gun barrel construction  
The invention discloses a gun barrel with a novel pattern of a rifling curve. The latter proceeds at start of motion from the parabolic curve y=A+Bx+Cx 2 and is supplemented with a constant D, to...
4712465 Dual purpose gun barrel for spin stabilized or fin stabilized projectiles and gun launched rockets  
A gun barrel and projectile system utilizes a smooth central bore gun barrel fitted with a short rifled insert near the breech end. A projectile fitted with a perforated skirt and driving band...
H000278 Apparatus for adapting a rifle to fire a different projectile  
An adaptor for attachment to the end of a rifle allows an individual to f from the rifle a different projectile than originally designed for the rifle, without substantial degredation in overall...
4660312 Rifled gun barrel having smooth bore section  
A gun barrel having a rifled-bore section at the breech end thereof and a smooth-bore section at the muzzle end thereof, the sections having a gas tight connection therebetween, the rifled-bore...
4590698 Barrel bypass system--full length groove  
The invention relates to an improved barrel for a firearm or cannon wherein the muzzle velocity of the projectile fired is controlled by systematically bypassing around the projectile during its...
4570529 Flash suppressor for firearms having rifled barrels  
A flash suppressor for use on a rifled barrel of a firearm comprising a generally tubular body member having a first portion adapted to receive a projectile from the barrel and a second portion...
4546564 Rifled bore construction for a gun barrel  
The present invention is a further improvement on Marshall et al. U.S. Pat. No. 3,525,172. Herein it is proposed to construct the gun barrel of two sections which are threaded together. The rifled...
4527348 Gun barrel  
A gun barrel adapted to be connected to a receiver includes a rifled portion and a smoothbore portion. The rifled portion may have deeper than normal grooves to permit the escape of propellant...
4447975 Gun with reduced recoil  
A gun with a spring-urged thrust hammer which first strikes the firing pin when released by the trigger and then has its forward thrust transferred from the firing pin to the bolt so that the...
4437251 Full gain twist ratchet rifling  
Improved ratchet rifling with a full gain twist is provided in the form of a bore portion having a smooth bore for initially receiving and holding a projectile without marring the projectile...
4353181 Elastic rebound compensator for rifled gunbarrels  
A rifled gunbarrel has stepped relief narrowing width of lands on the sides which normally transmit torque to projectiles, the narrowing extending about one projectile length to the muzzle for...
4308681 Progressive ratchet rifling in a full gain twist  
Rifling in a gunbarrel accelerates in spiral from a relatively bore-parallel beginning and has a groove surface which in cross-section progressively rotates concurrently with the acceleration in...
4176487 Firearm barrels and projectiles  
A firearm barrel is provided with a smooth bore which is widened in areas with annular grooves or pockets in the bore walls which act as propellant gas pressure relief areas. When a projectile is...
4175346 Firearm and bullet identification  
A firearm having marking elements as an integral part of its bore surface which are arrayed according to a code indicating the identification number of the firearm so that any bullets fired...
Matches 1 - 50 out of 110 1 2 3 >