Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8112930 | Firearm with enhanced corrosion and wear resistance properties This invention encompasses articles, compositions, and methods that provide enhanced corrosion resistance and wear resistance to firearms, firearm components, and firearm accessories. In one aspect, for example, a substrate comprising a firearm component is coated w... | 02/14/2012 |
| 8020333 | Cylinder with polycrystalline diamond interior A rigid composite structure includes a tubular body made from a metallic material and having a first bore formed therein along a longitudinal axis, and one or more segments formed from a super hard material disposed within the first bore. Each segment has a hole for... | 09/20/2011 |
| 7934332 | Composite firearm barrel A composite barrel for a firearm and method for forming by forging. The barrel includes at least two materials joined together by forging. In a preferred embodiment, at least one material is preferably lighter in weight than the other material. The barrel may includ... | 05/03/2011 |
| 7921590 | Composite firearm barrel reinforcement A chamber reinforcement for composite firearm barrel and method for forming the same. In one embodiment, the barrel includes an inner tube defining a bore that provides a bullet path and an outer sleeve preferably made of a material lighter in weight than the tube. ... | 04/12/2011 |
| 7802393 | Soft-projectile gun barrel and method for making same A method for making a gun barrel for soft projectiles includes providing a mandrel for the bore of the barrel. The mandrel is inserted into a barrel base that can be connected in use to the receiver of a soft-projectile gun. The connected barrel base and mandrel are... | 09/28/2010 |
| 7721478 | Gun barrel and method of forming A fabrication technique is described for producing lighter weight and improved wear and erosion resistant gun barrels. The barrels are produced in an unconventional manner from the inside bore to the outside diameter of the barrel and combine a refractory metal, met... | 05/25/2010 |
| 7275342 | Semi-automatic weapon for several tubes cartridges loading system for long guns New design for semi-automatic weapon for several tubes cartridges loading system for long guns, wherein an in-between connection steel part fixes the barrel to the receiver. The retention of the cartridges inside the parallel tubes is done by three metallic nails. T... | 10/02/2007 |
| 7207252 | Determining cook-off time of weapon Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such... | 04/24/2007 |
| 7197986 | Composite steel and ceramic gun barrels A method for lubricating gun barrel bores comprises burnishing dry lubricating ceramic particulate into the metal surface of the bore such that the particles of particulate substantially fill grain boundaries in the metal. The burnishing of the particulate may be do... | 04/03/2007 |
| 7182014 | Gun barrel for launching projectiles A gun barrel that can be used to fire projectiles. The gun barrel may be used in satellite-launching operations, in artillery operations, or in fire-fighting operations. The gun barrel has an outer support layer, an inner support layer lining the bore of the gun bar... | 02/27/2007 |
| 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 portion of the sleeve, preferably by injection molding. Breech and mu... | 12/26/2006 |
| 7140140 | Choke tube Different colors are prepared for inner shapes that define different design ballistic patterns. Wear resistant coatings of the different colors are applied over outer surfaces of tube bodies having the design ballistic patterns corresponding to the colors of the wea... | 11/28/2006 |
| 7066072 | Determining cook-off time of weapon Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such... | 06/27/2006 |
| 7059078 | Process for imprinting a composite ventilated rib A method of forming a composite rib for the barrel of a firearm is provided. The method generally includes aligning composite material and a release layer and directing the combination of materials through a die. The release layer is removed from the intermediate ri... | 06/13/2006 |
| 7013592 | Guns with exterior surface configured barrels Gas-operated automatic and semi-automatic guns are improved by providing their barrels with unique exterior surface configurations to reduce the weight of their barrels while retaining the barrels' original stiffness and to cause the barrels to dissipate heat faster... | 03/21/2006 |
| 6964123 | Laminated firearm weapon assembly and method In a low-cost firearm, the frame of the weapon comprises a laminated structure in which operative grooves and recesses having a base wall and one or more sidewalls are formed by laminating the sidewall to the base wall, so as to avoid the necessity for forming the g... | 11/15/2005 |
| 6889464 | Composite structural member To make a composite gun barrel, an inner barrel of a hard refractory material is formed and a composite jacket formed over it to increase the stiffness and strength while not adding excessive weight. The tows in the external jacket are varied in pitch along the barr... | 05/10/2005 |
| 6789454 | Gun barrel for launching large projectiles This invention discloses a gun barrel that can be used to fire large projectiles beyond the lower atmosphere, and in particular, that can be used to assist with the launching of satellites into orbit. The gun barrel has an outer support layer, an inner support layer... | 09/14/2004 |
| 6782650 | Nodular nickel boron coating The invention is directed to a nodular nickel boron coating having lubricating properties. Nodular and columnar boron coatings made by the above methods disclosed in the above patents have a low coefficient of friction. The above process results in a columnar struct... | 08/31/2004 |
| 6758004 | Firearm barrel manufacturing methods and 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 portion of the sleeve, preferably by injection molding. Breech and mu... | 07/06/2004 |
| 6711819 | Scandium containing aluminum alloy firearm Firearms having scandium containing aluminum alloy components having alloying elements including light weight metals, such as magnesium, chromium, copper and zinc, heavier metals, such as zirconium, and other rare earth metals. The components have yield strengths of... | 03/30/2004 |
| 6701656 | Weapon barrel having a hard chromium inner layer A weapon barrel includes a hard chromium layer provided on an inner barrel surface. The hard chromium layer contains at least 500 fissures/cm in a cross-sectional plane.... | 03/09/2004 |
| 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, which contains propellant gasses behind the projectile and eng... | 09/09/2003 |
| 6594936 | Method for lining a gun barrel A method for lining a gun barrel with a material selected to reduce the rate of erosion and corrosion from the rounds of ammunition fired through it includes the steps of forming a rod of the lining material, hammer -forging a barrel blank to the rod, and... | 07/22/2003 |
| 6576598 | Ballistics conditioning Compositions and methods for ballistic conditioning firearm projectiles, firearms, and firearm components such as bores of barrels, by applying to such items a conditioning composition selected from the group consisting of hexagonal boron nitride, graphit... | 06/10/2003 |
| 6557289 | Scandium containing aluminum alloy firearm Firearms having scandium containing aluminum alloy components having alloying elements including light weight metals, such as magnesium, chromium, copper and zinc, heavier metals, such as zirconium, and other rare earth metals. The components have yield s... | 05/06/2003 |
| 6511710 | Method of internally coating a weapon barrel by a plasma flame A method of coating an inner surface of a weapon barrel includes the following steps: introducing a plasma burner into the weapon barrel; producing a plasma flame by the plasma burner; directing the plasma flame against the inner barrel surface to cause i... | 01/28/2003 |
| 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 insert member. A casing is located around at least a portion... | 12/24/2002 |
| 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 thereafter heating the hard chromium layer beyond the re-crystalliz... | 10/22/2002 |
| 6457274 | Composite tube for gun barrel A composite tube for a gun barrel consists of: an inner tubular metal liner defining a longitudinal bore axis; a resin matrix material surrounding the liner, the resin matrix material containing a plurality of elongate carbon fibers, the carbon fibers bei... | 10/01/2002 |
| 6412390 | Low impulse firing adapter for combination gas and recoil operated weapons A low impulse firing attachment and companion ammunition for combination gas and recoil operated automatic weapons is comprised of a barrel insert and piston that provide the mechanism for containing the expanding propellant gases produced on firing. Such... | 07/02/2002 |
| 6381893 | Weapon barrel having a hard chromium inner layer A weapon barrel includes a hard chromium layer provided on an inner barrel surface. The hard chromium layer contains at least 500 fissures/cm in a cross-sectional plane.... | 05/07/2002 |
| 6352740 | Method of coating an inner surface of a weapon barrel A method of coating an inner face of a weapon barrel with a coating material includes the following steps: introducing the coating material as a component in sheet or foil form into the weapon barrel; positioning the component in the weapon barrel such th... | 03/05/2002 |
| 6230429 | Composite tube for gun barrel A composite tube for a gun barrel consists of: an inner tubular metal liner defining a longitudinal bore axis; a resin matrix material surrounding the liner, the resin matrix material containing a plurality of elongate carbon fibers, the carbon fibers bei... | 05/15/2001 |
| 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.... | 02/20/2001 |
| 6183820 | Method of internally coating a metal tube by explosive evaporation of the coating substance A method of coating an inner face of a metal tube with an electrically conducting coating material includes the steps of positioning a wire, made of the coating material, generally axially in an interior of the tube, along the inner face thereof; and pass... | 02/06/2001 |
| 6158158 | Method of frictionally bonding a liner to an outer tube of a weapon barrel A method of frictionally bonding a liner to a length portion of an outer tube of a weapon barrel includes the following steps: Cooling the liner to a temperature of less than -50° C.; heating the length portion of the outer tube to a temperature such tha... | 12/12/2000 |
| 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 prior art, the embodiments of the present invention provide ... | 06/29/1999 |
| 5856631 | 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, which contains propellant gasses behind the projectile and eng... | 01/05/1999 |
| 5804756 | Composite/metallic gun barrel having matched coefficients 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 orientation generally perpendicular to the long axis of the liner, a... | 09/08/1998 |
