US20150040454A1 - Injection molded gun barrel assembly - Google Patents
Injection molded gun barrel assembly Download PDFInfo
- Publication number
- US20150040454A1 US20150040454A1 US14/215,883 US201414215883A US2015040454A1 US 20150040454 A1 US20150040454 A1 US 20150040454A1 US 201414215883 A US201414215883 A US 201414215883A US 2015040454 A1 US2015040454 A1 US 2015040454A1
- Authority
- US
- United States
- Prior art keywords
- breech
- casing
- end portion
- muzzle
- muzzle end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
Abstract
A gun barrel assembly includes an outer casing, an inner liner and a tubular breech insert, all of which extend longitudinally from a muzzle end to a breech end. The casing is composed of a polymeric material or resin matrix material filled with carbon fibers and the liner is composed of a metal material. A muzzle end portion of the insert is disposed within the breech end portion of the casing bore. One or more structures on the breech insert muzzle end portion are interlocked with the casing breech end portion.
Description
- This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application Ser. No. 61/786,862 filed Mar. 15, 2013.
- This disclosure relates generally to composite tubes. More particularly, this disclosure relates to composite tubes for gun barrels.
- Composite gun barrels are desirable because they permit the construction of lightweight firearms. A composite barrel such as one constructed from a tube made of polymeric materials or carbon fiber and epoxy resin materials, however, typically lacks sufficient stiffness to maintain its integrity for accurate reproducible firing. Even when the composite barrel includes an inner tubular liner, a firearm having such a composite barrel tends to be less accurate than a firearm having a conventional barrel.
- There is provided a gun barrel assembly comprising an outer casing, an inner liner and a tubular breech insert. The casing longitudinally extends from a muzzle end to a breech end has a muzzle end portion and a breech end portion, and an axial bore extending from the muzzle end to the breech end. The casing is composed of a polymeric material or resin matrix material filled with carbon fibers. The liner longitudinally extending from a muzzle end to a breech end, has a bore having a rifled inner surface and is composed of a metal material. The liner being disposed within the casing bore. The breech insert longitudinally extending from a muzzle end to a breech end, and has a muzzle end portion disposed within the breech end portion of the casing bore. The breech insert muzzle end portion includes at least one structure interlocked with the casing breech end portion.
- The gun barrel assembly does not include a muzzle cap.
- The structure on the breech insert muzzle end portion is encased in the material of the casing breech end portion.
- The breech insert interfaces with a receiver of a firearm.
- The muzzle end portion of the casing extends longitudinally past the muzzle end of the liner, such that the liner is recessed from the muzzle end of the casing.
- The present disclosure may be better understood and its numerous objects and advantages will become apparent to those skilled in the art by reference to the accompanying drawings in which:
-
FIG. 1 is a side view of an injection molded gun barrel assembly in accordance with the disclosure; -
FIG. 2 is a cross-section view of the gun barrel assembly ofFIG. 1 ; -
FIG. 3 is a side view of the barrel liner and breech insert ofFIG. 2 ; -
FIG. 4 is a cross-section view of area IV ofFIG. 3 ; -
FIG. 5 is an enlarged fragmentary side view of the barrel liner ofFIG. 2 ; -
FIG. 6 is an enlarged perspective view of the breech insert ofFIG. 2 ; -
FIG. 7 is a left-side view of the breech insert ofFIG. 6 ; -
FIG. 8 is a right-side view of the breech insert ofFIG. 6 ; and -
FIG. 9 is a cross-section view taken along line IX-IX ofFIG. 8 . - With reference to the drawings, an injection molded
gun barrel assembly 10 in accordance with the disclosure has minimum deflection and optimal accuracy derived from production processes. - The
barrel assembly 10 includes three components, an innertubular liner 12, a breech cap orinsert 14 and an outer sheath orcasing 16 formed from an injection molded material. The innertubular liner 12 defines abore axis 18 extending longitudinally from abreech end 20 to a muzzle end 22. Theliner 12 is rifled 24 and is composed of a metal material, for example steel. - The
tubular breech insert 14 extends longitudinally from amuzzle end 26 to abreech end 28 and has abore 30 that is coaxial with theliner bore axis 18 when installed. Thebreech insert 14 is interlocked into the molded material of theouter casing 16 through geometries/structures 32 in themuzzle end portion 34 of the breech insert 14 to mount thebreech insert 14 to thebreech end portion 36 of thecasing 16. In the example shown inFIGS. 6-9 , the breech end of thecasing 16 abuts an outercircumferential shoulder 40 on thebreech insert 14. In addition, first and second circumferential rings 42, 44 extending outwardly from theouter surface 46 of themuzzle end portion 34 of thebreech insert 14 are encased in the material of thecasing 16 during the molding of thecasing 16 as explained further below. The breech insert geometries 32 prevent lateral or longitudinal movement between thebreech insert 14 and theouter casing 16. The breech insert 14 also interfaces with the receiver (not shown) of the firearm to create a positive lockup between thebarrel assembly 10 and the receiver. - The
breech end portion 48 of theliner 12 is press fitted into the breech insert bore 30 such that the breech ends 20, 28 of theliner 12 and thebreech insert 14 are substantially aligned and a transverse opening 50 in the breech insert 14 and a transverse groove 52 in theouter surface 54 of theliner 12 are aligned. Thus joined, the breech insert 14 andinner liner 12 are placed into a mold which is then closed. The material of theouter casing 16 is then injected into the mold. The material may be a polymeric material, resin matrix material filled with carbon fibers, or other suitable material. The mold includes provisions for forming atransverse opening 56 aligned with the breech insert transverse opening 50. After theouter casing 16 has completed curing, thebarrel assembly 10 is machined to finished dimensions. When thegun barrel assembly 10 is assembled with the receiver, a pin is inserted through the casingtransverse opening 56, the breech insert transverse opening 50 and the liner transverse groove 52 and corresponding openings in the receiver lock thegun barrel assembly 10 to the receiver. - The
outer casing 16 produced by the mold may have anintegral compensator 58 and front sight 60, as shown inFIGS. 1 and 2 . Thecasing 16 may also have integralcircumferential fins 62 extending from the outer surface. The muzzle end portion 64 of theouter casing 16 extends past the muzzle end 22 of theinner liner 12, as shown inFIG. 2 , such that theinner liner 12 is recessed from themuzzle end 66 of thebarrel assembly 10. - It should be appreciated that the
subject barrel assembly 10 is unique in that: 1) the breech insert 14 interlocks internally with theouter casing 16; 2) thebarrel assembly 10 may have anintegral compensator 58 and/or front sight 60; 3) thebarrel assembly 10 does not include the muzzle cap found in conventional composite barrels; and 4) the muzzle end 22 of theinner liner 12 is recessed from themuzzle end 66 of thecasing 16. - It should also be appreciated that various of the above-disclosed and other features and functions, or alternatives thereof, may be desirably combined into many other different systems or applications.
Claims (12)
1. A gun barrel assembly comprising:
an outer casing longitudinally extending from a muzzle end to a breech end, the outer casing being composed of a polymeric material or resin matrix material filled with carbon fibers, the casing defining an axial bore extending from the muzzle end to the breech end, the casing having a muzzle end portion and a breech end portion;
an inner liner longitudinally extending from a muzzle end to a breech end, the liner being disposed within the casing bore, the liner being composed of a metal material and defining a bore having a rifled inner surface; and
a tubular breech insert longitudinally extending from a muzzle end to a breech end, the breech insert having a muzzle end portion disposed within the breech end portion of the casing bore, the breech insert muzzle end portion including at least one structure interlocked with the casing breech end portion.
2. The gun barrel assembly of claim 1 wherein the gun barrel assembly does not include a muzzle cap.
3. The gun barrel assembly of claim 1 wherein the at least one structure on the breech insert muzzle end portion is encased in the material of the casing breech end portion.
4. The gun barrel assembly of claim 1 wherein the breech insert is adapted to interface with a receiver of a firearm.
5. The gun barrel assembly of claim 1 wherein the muzzle end portion of the casing extends longitudinally past the muzzle end of the liner, whereby the liner is recessed from the muzzle end of the casing.
6. A gun barrel assembly comprising:
an outer casing longitudinally extending from a muzzle end to a breech end, the outer casing being composed of a polymeric material or resin matrix material filled with carbon fibers, the casing defining an axial bore extending from the muzzle end to the breech end, the casing having a muzzle end portion and a breech end portion;
an inner liner longitudinally extending from a muzzle end to a breech end, the liner being disposed within the casing bore, the liner being composed of a metal material and defining a bore having a rifled inner surface; and
a tubular breech insert longitudinally extending from a muzzle end to a breech end, the breech insert having a muzzle end portion disposed within the breech end portion of the casing bore, the breech insert muzzle end portion including at least one structure encased in the material of the casing breech end portion.
7. The gun barrel assembly of claim 6 wherein the gun barrel assembly does not include a muzzle cap.
8. The gun barrel assembly of claim 6 wherein the breech insert is adapted to interface with a receiver of a firearm.
9. The gun barrel assembly of claim 6 wherein the muzzle end portion of the casing extends longitudinally past the muzzle end of the liner, whereby the liner is recessed from the muzzle end of the casing.
10. A gun barrel assembly comprising:
an outer casing longitudinally extending from a muzzle end to a breech end, the outer casing being composed of a polymeric material or resin matrix material filled with carbon fibers, the casing defining an axial bore extending from the muzzle end to the breech end, the casing having a muzzle end portion and a breech end portion;
an inner liner longitudinally extending from a muzzle end to a breech end, the liner being disposed within the casing bore, the liner being composed of a metal material and defining a bore having a rifled inner surface; and
a tubular breech insert longitudinally extending from a muzzle end to a breech end, the breech insert having a muzzle end portion disposed within the breech end portion of the casing bore, the breech insert muzzle end portion including at least one structure encased in the material of the casing breech end portion;
wherein the muzzle end portion of the casing extends longitudinally past the muzzle end of the liner, whereby the liner is recessed from the muzzle end of the casing.
11. The gun barrel assembly of claim 10 wherein the gun barrel assembly does not include a muzzle cap.
12. The gun barrel assembly of claim 10 wherein the breech insert is adapted to interface with a receiver of a firearm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/215,883 US20150040454A1 (en) | 2013-03-15 | 2014-03-17 | Injection molded gun barrel assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361786862P | 2013-03-15 | 2013-03-15 | |
US14/215,883 US20150040454A1 (en) | 2013-03-15 | 2014-03-17 | Injection molded gun barrel assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150040454A1 true US20150040454A1 (en) | 2015-02-12 |
Family
ID=52447360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/215,883 Abandoned US20150040454A1 (en) | 2013-03-15 | 2014-03-17 | Injection molded gun barrel assembly |
Country Status (1)
Country | Link |
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US (1) | US20150040454A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10393462B2 (en) * | 2017-04-20 | 2019-08-27 | Saeilo Enterprises, Inc. | Firearm barrels with integrated sound suppressors |
US10466022B2 (en) | 2016-03-25 | 2019-11-05 | Vista Outdoor Operations Llc | Reduced energy MSR system |
US11118851B2 (en) | 2016-03-25 | 2021-09-14 | Vista Outdoor Operations Llc | Reduced energy MSR system |
US11385013B2 (en) | 2016-07-01 | 2022-07-12 | Blackpowder Products, Inc. | Hybrid carbon—steel firearm barrel |
USD1018757S1 (en) | 2020-09-17 | 2024-03-19 | Blackpowder Products, Inc. | Firearm barrel |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847786A (en) * | 1955-02-07 | 1958-08-19 | Olin Mathieson | Composite firearm barrel comprising glass fibers |
US2935913A (en) * | 1956-04-24 | 1960-05-10 | Olin Mathieson | Gun barrel |
US3228298A (en) * | 1960-04-20 | 1966-01-11 | Andrew J Grandy | Rifle barrel |
US3517585A (en) * | 1966-03-10 | 1970-06-30 | Edwin Slade | Reinforced plastic tube and gun barrel construction incorporating an imbedded expandable woven screen lining |
US3571962A (en) * | 1969-06-10 | 1971-03-23 | Us Army | Monolithic metallic liner for fiberglass gun tubes |
US3641870A (en) * | 1970-06-04 | 1972-02-15 | Us Army | Shingle-wrap liner for a gun barrel |
US4485721A (en) * | 1980-04-10 | 1984-12-04 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Rifled fiber reinforced gun barrel |
US4729806A (en) * | 1985-08-13 | 1988-03-08 | Affarsverket Ffv | Method for making tubes having low weight |
US4843946A (en) * | 1984-11-27 | 1989-07-04 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defense Of Her Majesty's Canadian Government | Filament-wound venturi |
US5115716A (en) * | 1990-01-29 | 1992-05-26 | Fmc Corporation | Automatic percussion primer feed mechanism |
US5125179A (en) * | 1991-04-08 | 1992-06-30 | The United States Of America As Represented By The Secretary Of The Air Force | Nonmetallic tubular structure |
US5285592A (en) * | 1991-10-31 | 1994-02-15 | Atlantic Research Corporation | Motor case with composite overwrap and method |
US5531150A (en) * | 1994-03-14 | 1996-07-02 | Lockheed Missiles & Space Company | Lightweight gun systems |
US5928799A (en) * | 1995-06-14 | 1999-07-27 | Ultramet | High temperature, high pressure, erosion and corrosion resistant composite structure |
US6179944B1 (en) * | 1996-06-30 | 2001-01-30 | The United States Of America As Represented By The Secretary Of The Navy | Process for preparing composite warhead casings and product |
US6189431B1 (en) * | 1998-01-26 | 2001-02-20 | Remington Arms Company, Inc. | Small caliber gun barrel |
US6497065B1 (en) * | 1999-05-14 | 2002-12-24 | Michaels Of Oregon Co. | Firearm barrel having protective sleeve |
US6889464B2 (en) * | 2003-06-04 | 2005-05-10 | Michael K. Degerness | Composite structural member |
US7721478B2 (en) * | 2004-04-27 | 2010-05-25 | Materials & Electrochemical Research Corp. | Gun barrel and method of forming |
US7775200B2 (en) * | 2005-05-23 | 2010-08-17 | Anderson Kenneth K | Barrel system for a paintball marker |
US7866079B2 (en) * | 2003-08-28 | 2011-01-11 | Ra Brands, L.L.C. | Modular barrel assembly |
US8677670B2 (en) * | 2010-01-06 | 2014-03-25 | Jason Christensen | Segmented composite barrel for weapon |
US8701326B2 (en) * | 2011-12-08 | 2014-04-22 | Sturm, Ruger & Company, Inc. | Pistol barrel system and method |
-
2014
- 2014-03-17 US US14/215,883 patent/US20150040454A1/en not_active Abandoned
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847786A (en) * | 1955-02-07 | 1958-08-19 | Olin Mathieson | Composite firearm barrel comprising glass fibers |
US2935913A (en) * | 1956-04-24 | 1960-05-10 | Olin Mathieson | Gun barrel |
US3228298A (en) * | 1960-04-20 | 1966-01-11 | Andrew J Grandy | Rifle barrel |
US3517585A (en) * | 1966-03-10 | 1970-06-30 | Edwin Slade | Reinforced plastic tube and gun barrel construction incorporating an imbedded expandable woven screen lining |
US3571962A (en) * | 1969-06-10 | 1971-03-23 | Us Army | Monolithic metallic liner for fiberglass gun tubes |
US3641870A (en) * | 1970-06-04 | 1972-02-15 | Us Army | Shingle-wrap liner for a gun barrel |
US4485721A (en) * | 1980-04-10 | 1984-12-04 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Rifled fiber reinforced gun barrel |
US4843946A (en) * | 1984-11-27 | 1989-07-04 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defense Of Her Majesty's Canadian Government | Filament-wound venturi |
US4729806A (en) * | 1985-08-13 | 1988-03-08 | Affarsverket Ffv | Method for making tubes having low weight |
US5115716A (en) * | 1990-01-29 | 1992-05-26 | Fmc Corporation | Automatic percussion primer feed mechanism |
US5125179A (en) * | 1991-04-08 | 1992-06-30 | The United States Of America As Represented By The Secretary Of The Air Force | Nonmetallic tubular structure |
US5285592A (en) * | 1991-10-31 | 1994-02-15 | Atlantic Research Corporation | Motor case with composite overwrap and method |
US5531150A (en) * | 1994-03-14 | 1996-07-02 | Lockheed Missiles & Space Company | Lightweight gun systems |
US5928799A (en) * | 1995-06-14 | 1999-07-27 | Ultramet | High temperature, high pressure, erosion and corrosion resistant composite structure |
US6179944B1 (en) * | 1996-06-30 | 2001-01-30 | The United States Of America As Represented By The Secretary Of The Navy | Process for preparing composite warhead casings and product |
US6189431B1 (en) * | 1998-01-26 | 2001-02-20 | Remington Arms Company, Inc. | Small caliber gun barrel |
US6497065B1 (en) * | 1999-05-14 | 2002-12-24 | Michaels Of Oregon Co. | Firearm barrel having protective sleeve |
US6758004B2 (en) * | 1999-05-14 | 2004-07-06 | Michaels Of Oregon Co. | Firearm barrel manufacturing methods and barrel assemblies |
US6889464B2 (en) * | 2003-06-04 | 2005-05-10 | Michael K. Degerness | Composite structural member |
US7866079B2 (en) * | 2003-08-28 | 2011-01-11 | Ra Brands, L.L.C. | Modular barrel assembly |
US7721478B2 (en) * | 2004-04-27 | 2010-05-25 | Materials & Electrochemical Research Corp. | Gun barrel and method of forming |
US7775200B2 (en) * | 2005-05-23 | 2010-08-17 | Anderson Kenneth K | Barrel system for a paintball marker |
US8677670B2 (en) * | 2010-01-06 | 2014-03-25 | Jason Christensen | Segmented composite barrel for weapon |
US8701326B2 (en) * | 2011-12-08 | 2014-04-22 | Sturm, Ruger & Company, Inc. | Pistol barrel system and method |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10466022B2 (en) | 2016-03-25 | 2019-11-05 | Vista Outdoor Operations Llc | Reduced energy MSR system |
US11118851B2 (en) | 2016-03-25 | 2021-09-14 | Vista Outdoor Operations Llc | Reduced energy MSR system |
US11713935B2 (en) | 2016-03-25 | 2023-08-01 | Federal Cartridge Company | Reduced energy MSR system |
US11385013B2 (en) | 2016-07-01 | 2022-07-12 | Blackpowder Products, Inc. | Hybrid carbon—steel firearm barrel |
US11732988B2 (en) | 2016-07-01 | 2023-08-22 | Blackpowder Products, Inc. | Hybrid carbon—steel firearm barrel |
US10393462B2 (en) * | 2017-04-20 | 2019-08-27 | Saeilo Enterprises, Inc. | Firearm barrels with integrated sound suppressors |
USD1018757S1 (en) | 2020-09-17 | 2024-03-19 | Blackpowder Products, Inc. | Firearm barrel |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAEILO ENTERPRISES, INC., NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NAIK, NITIN A.;TERTIN, JAMES A.;GOERGES, JOSEPH B.;SIGNING DATES FROM 20140407 TO 20140411;REEL/FRAME:032674/0257 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |