子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Launch tube and a method for making a launch tube | US10157469 | 2002-05-29 | US06637309B2 | 2003-10-28 | Samuel A. See; Goran L. F. Haag |
| A launch tube made using fiberglass reinforced polymer (FRP) includes a FRP tube having an inside wall, where the inside wall has a groove near a lower end of the tube. A bottom made of FRP is molded for engagement with the tube at the groove. After forming the tube with the groove, a mold is placed inside the tube adjacent to the groove, and resin-coated fiberglass matting is laid on the mold. A fibrous material is placed over the fiberglass matting and a nonporous bag seals the fiberglass matting. A vacuum is drawn in the bag, and atmospheric air pressure compresses the fiberglass matting, forcing it into the groove. A counter-mold can be used instead of vacuum setting to compress the fiberglass matting. A compound, such as Sheet Molding Compound (SMC), Bulk Molding Compound (BMC) or Low Pressure Molding Compound (LPMC) is applied between the mold and counter-mold presses. Pressure and temperature are applied to the mold and counter-mold to position the bottom with the tube. The bottom has a convex surface, and the convex surface and the inside wall of the tube define a chamber for receiving explosive propellants. | ||||||
| 182 | Firearm barrel manufacturing methods and barrel assemblies | US10329113 | 2002-12-23 | US20030093935A1 | 2003-05-22 | Robert B. Huston |
| 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 muzzle portions of the barrel may be fitted against the sleeve and are preferably tightly connected by the casing. | ||||||
| 183 | Launch tube and a method for making a launch tube | US10157469 | 2002-05-29 | US20020139240A1 | 2002-10-03 | Samuel A. See; Goran L. F. Haag |
| A launch tube made using fiberglass reinforced polymer (FRP) includes a FRP tube having an inside wall, where the inside wall has a groove near a lower end of the tube. A bottom made of FRP is molded for engagement with the tube at the groove. After forming the tube with the groove, a mold is placed inside the tube adjacent to the groove, and resin-coated fiberglass matting is laid on the mold. A fibrous material is placed over the fiberglass matting and a nonporous bag seals the fiberglass matting. A vacuum is drawn in the bag, and atmospheric air pressure compresses the fiberglass matting, forcing it into the groove. A counter-mold can be used instead of vacuum setting to compress the fiberglass matting. A compound, such as Sheet Molding Compound (SMC), Bulk Molding Compound (BMC) or Low Pressure Molding Compound (LPMC) is applied between the mold and counter-mold presses. Pressure and temperature are applied to the mold and counter-mold to position the bottom with the tube. The bottom has a convex surface, and the convex surface and the inside wall of the tube define a chamber for receiving explosive propellants. | ||||||
| 184 | Composite/metallic gun barrel having matched coefficients of thermal expansion | US573697 | 1995-12-18 | US5804756A | 1998-09-08 | Roland J. Christensen |
| 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, and the second groups including one or more layers disposed generally parallel with the long axis of the metallic liner. By controlling the amount of fibers in each group relative to the other group, the coefficients of thermal expansion in the radial direction can be matched to provide a gun barrel having desirable firing characteristics. | ||||||
| 185 | Composite/metallic gun barrel having a differing, restrictive coefficient of thermal expansion | US573693 | 1995-12-18 | US5657568A | 1997-08-19 | Roland J. Christensen |
| 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, and the second groups including one or more layers disposed generally parallel with the long axis of the metallic liner. By controlling the amount of fibers in each group relative to the other group, the coefficients of thermal expansion in the radial direction can be regulated to provide a gun barrel having desired firing characteristics. | ||||||
| 186 | Composite tube for a gun barrel | US564787 | 1995-11-29 | US5600912A | 1997-02-11 | David B. Smith |
| A composite tube for a gun barrel and a method for making the tube are disclosed. The tube includes a plurality of elongate carbon fibers and a resin material surrounding a longitudinal bore axis. The elongate carbon fibers are aligned parallel with the longitudinal bore axis and are under compression along the longitudinal bore axis. Such a tube for a gun barrel may be made by wrapping a tubular metal liner with a resin matrix material containing a plurality of elongate carbon fibers, and aligning the carbon fibers parallel with the longitudinal axis of the liner. The resin matrix material is cured, and the elongate carbon fibers are placed under compression along the longitudinal axis of the liner. Compressing the carbon fibers along the longitudinal axis of the liner produces a tube of surprising stiffness. The tube provides a highly stable gun barrel of reduced weight for good accuracy. | ||||||
| 187 | Shotgun having light weight interchangeable barrel tubes | US122020 | 1993-09-15 | US5448848A | 1995-09-12 | Clifford Moller |
| A shotgun barrel tube which has an enlarged chamber portion and an elongated barrel. A series of threads or grooves are formed circumferentially around the outer surface of the barrel tube to remove sufficient material to lighten the weight of the barrel tube and maintain sufficient strength to withstand internal pressure when a shotgun shell is discharged. | ||||||
| 188 | Copper/copper alloy and graphite fiber composite and method | US132472 | 1993-10-06 | US5410796A | 1995-05-02 | Joseph K. Weeks, Jr. |
| A method for producing a composite having graphite fibers in a matrix of copper/copper alloy. The graphite fibers are coated with a refractory metal which both protects the graphite fibers from the molten copper/copper alloy while also acting as a wetting agent on the graphite fibers for intimate infiltration by the molten copper/copper alloy. The coated graphite fibers are prepared in a structure and placed against a copper/copper alloy element which is melted to produce the molten copper/copper alloy. The infiltration of the graphite fiber structure with the molten copper/copper alloy is characterized by the absence of pressure on the molten copper/copper alloy. | ||||||
| 189 | Method of manufacturing a gun barrel provided with a lining | US892179 | 1992-06-02 | US5348598A | 1994-09-20 | Michel Vives; Pierre Taveau; Georges Habarou; Francois Bognandi |
| A gun barrel lining made of composite material having refractory fiber reinforcement and a ceramic matrix, the fiber reinforcement comprises a cylindrical inner portion constituted by a three-dimensional fiber texture and a cylindrical outer portion surrounding the inner portion and having the same axis, the outer portion being constituted by a strip wound around the inner portion, and the inner and outer portions being codensified by the ceramic matrix. | ||||||
| 190 | Motor case with composite overwrap and method | US784874 | 1991-10-31 | US5285592A | 1994-02-15 | James R. Sides |
| A motor case, including an aluminum barrel and a composite overwrap wound around the barrel to form a composite layer, which protects the operator against case failure during motor firing due to thermal effects caused by insulator defects or the like. The overwrap is formed of a fibrous material and a low temperature curable resin, the overwrap being mechanically bonded to the barrel. The method includes the steps of imparting texture to the outer surface of the barrel, wherein the textured surface includes jagged protrusions extending outwardly therefrom, wrapping an strip of fibrous material impregnated with a low temperature curable resin around the barrel, and curing the case. | ||||||
| 191 | Filament-wound venturi | US117927 | 1987-11-04 | US4843946A | 1989-07-04 | David H. Gladstone; Raymond Langlois; William J. Robertson |
| A venturi section or cone for a lightweight firearm such as a recoilles gun which is subjected to high transient pressures and temperatures on firing is formed from a resin impregnated multi-filament fiber material. The material in the form of an elongated tow is wound on a mandrel, cured, and then removed from the mandrel for subsequent operations such as machining or assembly. During manufacture, a hot gas erosion preventing layer is first formed on the mandrel and a plurality of layers of two are helically wound thereon at a helix angle selected to provide adequate axial and hoop strengths for resisting axial thrust and hoop loads produced on firing. Lightweight recoilless guns using such venturi cones are lighter and cheaper to fabricate than conventional guns and will fire more rounds before excessive erosion causes them to be unusable. | ||||||
| 192 | Composite barrel construction made using injection molding | US69993 | 1987-07-06 | US4769938A | 1988-09-13 | M. Gaines Chesnut; Thomas L. Castetter |
| A number of rifle parts are provided to improve the appearance, facilitate the assembly/disassembly, and/or ease the carrying of a conventional rifle. In a preferred application one or more of the rifle parts are used with a 22 caliber rifle. The rifle parts include a handle unit that can be added to the conventional rifle and which is separate and detachable from the rifle body. The handle unit can be connected to the rifle body using fasteners or a dovetail arrangement. The handle unit preferably includes aligning holes through which the shooter can see the original rifle sight at the free end of the rifle barrel. A front sight assembly is provided in which a front sight is elevated to be in alignment with the rear sight. The front sight assembly makes use of the original sight or the sight slot to maintain the proper sight line between the rear sight and the front sight. A barrel retaining assembly is also provided which can be substituted for the conventional barrel retaining device. The retention assembly includes a wedge movable relative to a support block for use in engaging/disengaging a rifle barrel notch. A lighter rifle barrel construction is also provided. The rifle barrel includes a metal barrel end member for connection to the rifle body, a metal insert member press fitted to the barrel end member, and a casing that surrounds the insert member. Preferably, the casing is made of a plastic-like material and the plastic is located about the insert member by injection molding. | ||||||
| 193 | Method for making tubes having low weight | US895887 | 1986-08-12 | US4729806A | 1988-03-08 | Bengt Stein |
| A method for the manufacture for the tubes or shafts of a composite material and having a low weight, whereby a blank of a material that can be pressformed and which has a substantially even thickness of material is subjected to isostatic pressing on or in a formation tool thereby providing a shell or a liner (15) of an intended shape and profile and having a mainly by substantially thickness of material, and on or in said shell or liner (15) another material is applied and is bound, for instance a highstrength material like glassfiber, carbon fiber or aramide fiber, so that the liner (15) and said other material (17) provide a solid integral composite tube or composite shaft. A tube made according to the method can be a barrel, whereby the liner (15) preferably has a conically shaped charged space and is formed with riffels in the race, which rifels have a progressively increased pitch in the direction towards the outer end of the barrel, and whereby the lower rifel portions on the outside of the liner (15) portions are filled with another material, and the liner is completely covered with preferably highstrength material having a low density, whereby the liner (15) and the other material or materials provide solid integral unit. Correspondingly a shaft can be formed with outer shaft shell of a material that can be pressformed and an inner filler material of a preferably highstrength material having a low density. | ||||||
| 194 | Tube having strain-hardened inside coating | US724990 | 1985-04-18 | US4641450A | 1987-02-10 | Eberhard Moll; Marcel Lardon; Edgar Muller |
| To manufacture tubes having a wear-resistant inside coating, such as gun barrels, hard material layers are deposited on the barrel and the layers are strain-hardened in their surface area by at least the ratio of the area by which the surface area is reduced by compression divided by the surface area of 0.001 (.DELTA.F/F=1.10.sup.-3) or reducing the area of the layer by 0.1%. | ||||||
| 195 | Rifled bore construction for a gun barrel | US516230 | 1983-08-15 | US4546564A | 1985-10-15 | Anthony A'Costa |
| 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 bore of the barrel is terminated at a predetermined point and the smooth bored muzzle portion is threaded into the rifled portion at the juncture point of peak pressure between the two barrel portions. The threaded areas on each of the gun barrel sections are interrupted in a manner that facilitates quick longitudinal assembly and a rotation of the barrels by 90.degree. locks the barrels together. | ||||||
| 196 | Composite barrel and process for the manufacture thereof | US182936 | 1980-09-02 | US4409881A | 1983-10-18 | Pierre van der Wielen |
| This barrel is characterized in that it comprises three layers superimposed without any break in continuity of surface contact between layers, namely: an internal layer of a refractory material; a core layer of a material the mechanical strength of which is higher than about 250 MPa at 900.degree. and an external layer of an alloyed steel. The invention relates also to a process for the manufacture of such barrel. | ||||||
| 197 | Composite firearm barrel | US3742640D | 1971-05-14 | US3742640A | 1973-07-03 | THOMSEN D |
| A composite barrel incorporates means for resisting the radial distribution of heat originating in the barrel bore.
|
||||||
| 198 | Firearm construction | US46068965 | 1965-06-02 | US3367053A | 1968-02-06 | LEWIS KARL R |
| 199 | Metal gun barrel with encircling plastic layer and integral plastic sight | US48308365 | 1965-08-27 | US3299558A | 1967-01-24 | ROBERT KARL ANTHONY |
| 200 | Rifle barrel | US2358260 | 1960-04-20 | US3228298A | 1966-01-11 | GRANDY ANDREW J; DONNELY JR JOHN J |
QQ群二维码
意见反馈
意见反馈