US1406404A - Machine gun - Google Patents

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Publication number
US1406404A
US1406404A US475069A US47506921A US1406404A US 1406404 A US1406404 A US 1406404A US 475069 A US475069 A US 475069A US 47506921 A US47506921 A US 47506921A US 1406404 A US1406404 A US 1406404A
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United States
Prior art keywords
casing
radiator
barrel
cone
machine gun
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Expired - Lifetime
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US475069A
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Mccrudden John Charle Reginald
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Individual
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Priority to US475069A priority Critical patent/US1406404A/en
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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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • 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
    • 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
    • F41A13/00—Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
    • F41A13/12—Systems for cooling the outer surface of the barrel
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/20—Grip or stock safeties, i.e. safeties disengaged by clasping the grip or stock
    • F41A17/22—Grip or stock safeties, i.e. safeties disengaged by clasping the grip or stock acting on the trigger
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/34—Magazine safeties
    • F41A17/38—Magazine mountings, e.g. for locking the magazine in the gun
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/03—Shot-velocity control
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/34—Cocking mechanisms
    • 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
    • F41A21/24—Barrels or gun tubes with fins or ribs, e.g. for cooling
    • 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers
    • 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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/65—Box magazines having a cartridge follower

Definitions

  • Patented F b 14 1922 Original application filed June 19, 1920, Serial No. 390,153. Divided and this application filed June 4,
  • FIG. 1 is a side elevational view of a machine gun embodying the present invention
  • Fig. 2 is a sectional elevation showing the barrel, the radiator, and the flash trap and report muflier;
  • Fig. 3 is a transverse section on the line 3-3
  • Fig. 2 and Fig. 4 is a transverse section on the line 4-4.
  • a sleeve 1 (preferably constructed of aluminum) is slipped upon the barrel 2; this sleeve carries thin radiator fins 3, preferably helically disposed, between which and the radiator casing 4 a little circumferential clearance is left.
  • the radiator assembly is locked on the barrel between the abutment formed by the forward end 5 of the breech body 6 and the clamping nut 7 which is screwed on to the barrel muzzle (Fig. 2).
  • the nut 7 is formed with two or more wings 8 which set in slide guides 9 fixed in the radiator casing 4. The forward end of the barrel is maintained in axial alignment with the casing 4 by these wing pieces.
  • radiator casing 4 Rearwardly the barrel and breech parts are supported on wing pieces 10 which run in slide guides 11 formed in the forward part of the body casing 12.
  • the butt end of the radiator casing 4 is made slightly conical to fit tightly on the slightly tapered forward end 13 of the body casing 12 and is clamped thereon by a screw tightened band 15 so that said radiator casing 4 and mouth 17, an open end cone 18 is mounted .with its rear narrow end slightly forward of themuzzle bell.
  • This cone is centered and carried at its rear end by means of a spider frame 19, which, is a push fit in the casing 4; around its forward end it is fixed in the casing 4 by rivets 20 or otherwise, so as to leave an annular space between it and the casing.
  • the wide end of the cone is incurled slightly to form a circular lip 21.
  • a clearance space 22 is allowed between the rear end of the cone 18 and the mouth of the muzzle bell; this clearance space is shorter than a bullet length in order that a bullet in passing. into the cone 18 will substantially block the narrow mouth of the cone and cause the following gases to divert into the annular space 30 surrounding the cone, where they will expand; in passing forward these gases so expanded find exit through the annular lip space at 23 and induce a following draft of cold air through the apertures in the body casing rearward of the barrel and over the radiator. In passing through the annular space 30 the flash is extinguished.
  • the incurling of the lips 16 of the, radiator casing shields the dying flash from view at any point in line with the guns direction.
  • inward flutings 24 in the forward extension of the body casing v12 are located in alignment with outward flutings 25 in the butt end of the radiator casing 4, the passages formed by these flutes being open at the rear end (see 26 Fig. 2).
  • These passages 27 admit a current of cold air from external autmosphere forwardly into the radiator space in the casing-4, air draught being established in the manner already de- 5 to secure by Letters Patent is-- Air coolingand flash masking means for machine guns comprising a finned radiator fixed on the gun barrel, a tubular casing enclosing said radiator-and extending for- 10 wardly thereof, air admission apertures in.

Description

J. C. R. McCRUDDEN.
Patented Feb. 14, 1922.
RN MN digs.
ATEJNT OFFICE.
JOHL'N CHARLES REGINALD McCRUDDEN, or HURSTVILLE, NEAR SYDNEY, NEW SOUTH WALES, AUSTRALIA.
.MAQHINE GUN.
Specification of Letters Patent. Patented F b 14 1922 Original application filed June 19, 1920, Serial No. 390,153. Divided and this application filed June 4,
I 1921. Serial No. 475,069.
To all whom it may concern:
Be it known that I, J OHN CHARLES REG- lNALD MOCRUDDEN, a subject of the King of Great Britain and Ireland, residing at Fleurbaix, Haig Street, Hurstville, near Sydney, New South Wales, Australia, have cation filed by me on 19th June 1920, No.
In the accompanying drawing, Fig. 1 is a side elevational view of a machine gun embodying the present invention;
Fig. 2 is a sectional elevation showing the barrel, the radiator, and the flash trap and report muflier;
Fig. 3 is a transverse section on the line 3-3, Fig. 2 and Fig. 4 is a transverse section on the line 4-4. Fig. 2.
A sleeve 1 (preferably constructed of aluminum) is slipped upon the barrel 2; this sleeve carries thin radiator fins 3, preferably helically disposed, between which and the radiator casing 4 a little circumferential clearance is left. The radiator assembly is locked on the barrel between the abutment formed by the forward end 5 of the breech body 6 and the clamping nut 7 which is screwed on to the barrel muzzle (Fig. 2). The nut 7 is formed with two or more wings 8 which set in slide guides 9 fixed in the radiator casing 4. The forward end of the barrel is maintained in axial alignment with the casing 4 by these wing pieces. Rearwardly the barrel and breech parts are supported on wing pieces 10 which run in slide guides 11 formed in the forward part of the body casing 12. The butt end of the radiator casing 4 is made slightly conical to fit tightly on the slightly tapered forward end 13 of the body casing 12 and is clamped thereon by a screw tightened band 15 so that said radiator casing 4 and mouth 17, an open end cone 18 is mounted .with its rear narrow end slightly forward of themuzzle bell. This cone is centered and carried at its rear end by means of a spider frame 19, which, is a push fit in the casing 4; around its forward end it is fixed in the casing 4 by rivets 20 or otherwise, so as to leave an annular space between it and the casing. The wide end of the cone is incurled slightly to form a circular lip 21. A clearance space 22 is allowed between the rear end of the cone 18 and the mouth of the muzzle bell; this clearance space is shorter than a bullet length in order that a bullet in passing. into the cone 18 will substantially block the narrow mouth of the cone and cause the following gases to divert into the annular space 30 surrounding the cone, where they will expand; in passing forward these gases so expanded find exit through the annular lip space at 23 and induce a following draft of cold air through the apertures in the body casing rearward of the barrel and over the radiator. In passing through the annular space 30 the flash is extinguished. The incurling of the lips 16 of the, radiator casing shields the dying flash from view at any point in line with the guns direction.
On reference to-Fig. 3 it will be noted that inward flutings 24 in the forward extension of the body casing v12 are located in alignment with outward flutings 25 in the butt end of the radiator casing 4, the passages formed by these flutes being open at the rear end (see 26 Fig. 2). These passages 27 admit a current of cold air from external autmosphere forwardly into the radiator space in the casing-4, air draught being established in the manner already de- 5 to secure by Letters Patent is-- Air coolingand flash masking means for machine guns comprising a finned radiator fixed on the gun barrel, a tubular casing enclosing said radiator-and extending for- 10 wardly thereof, air admission apertures in.
the rear part of said-casing, a bell shaped muzzle on the barrel; a conical tube concentrically disposed in said casing with its smaller end contiguous to'the muzzle but 15 a short distance in advance of it, said-tube extending forwardly of the barrel muzzle within said casing clearance spaces around said bell and said conical tube, an incurled lip on the forward end of said casing shielding the annular clearance space around said 2 conical tube, said lip adapted to inwardly deflect outgoing draft and to shield from view burning gases within said clearance space, and said conical tube at its narrow end being of slightly greater diameter than 2 the barrel bore and at its forward end substantially greater in diameter than said bore. In testimony whereof I afiix my signature.
ionu CHARLES REGINALD McCRUDDEN.
US475069A 1919-07-14 1921-06-04 Machine gun Expired - Lifetime US1406404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US475069A US1406404A (en) 1919-07-14 1921-06-04 Machine gun

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU535486X 1919-07-14
US39015320 US1452123A (en) 1919-07-14 1920-06-19 mccrudden
GB16512/21A GB170250A (en) 1919-07-14 1920-07-06 Improvements in magazines for machine guns
US475069A US1406404A (en) 1919-07-14 1921-06-04 Machine gun

Publications (1)

Publication Number Publication Date
US1406404A true US1406404A (en) 1922-02-14

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Family Applications (3)

Application Number Title Priority Date Filing Date
US39015320 Expired - Lifetime US1452123A (en) 1919-07-14 1920-06-19 mccrudden
US475069A Expired - Lifetime US1406404A (en) 1919-07-14 1921-06-04 Machine gun
US475070A Expired - Lifetime US1425120A (en) 1919-07-14 1921-06-04 Magazine for machine guns

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US39015320 Expired - Lifetime US1452123A (en) 1919-07-14 1920-06-19 mccrudden

Family Applications After (1)

Application Number Title Priority Date Filing Date
US475070A Expired - Lifetime US1425120A (en) 1919-07-14 1921-06-04 Magazine for machine guns

Country Status (5)

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US (3) US1452123A (en)
CH (1) CH95053A (en)
DE (2) DE412247C (en)
FR (1) FR535486A (en)
GB (1) GB170250A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448593A (en) * 1944-10-26 1948-09-07 Bell Telephone Labor Inc Flash and blast reducer
US2457802A (en) * 1944-06-06 1949-01-04 Bauer August Silencer and recoil reducer for firearms
US3090150A (en) * 1960-06-13 1963-05-21 Fairchild Engine & Airplane Hand guard construction
US20050262997A1 (en) * 2004-01-20 2005-12-01 John Brixius Gun barrel assembly
US20140007481A1 (en) * 2011-01-17 2014-01-09 GTAMO Outdoor, S.L. Method for manufacturing a bull barrel equipped with a silencer and silencer-equipped bull barrel thus obtained
US9261316B2 (en) 2012-01-13 2016-02-16 Gamo Outdoor, S.L. Method for the manufacture of a barrel for compressed air or CO2 rifles and barrel for compressed air or CO2 rifles obtained
US9658010B1 (en) * 2014-10-13 2017-05-23 Paul Oglesby Heat shielding and thermal venting system
US20170336165A1 (en) * 2014-11-21 2017-11-23 Beretta Holding S.P.A. Gun, especially air gun or firearm
US20210356224A1 (en) * 2019-09-05 2021-11-18 Centre Firearms Co., Inc. Monolithic noise suppression device with cooling features

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741950A (en) * 1948-01-21 1956-04-17 Smith Grover Cleveland Recoiling barrel firearm with pivoted lock
US3004475A (en) * 1953-04-28 1961-10-17 Aircraft Armaments Inc Rocket gun
US2868083A (en) * 1955-09-21 1959-01-13 Robert F Windstrup Prefabricated gun receiver
DE1203163B (en) * 1958-11-04 1965-10-14 Rainer Kurz Dipl Ing Automatic handgun
US3408895A (en) * 1967-01-03 1968-11-05 Gilbert A. Lopez Firearm with adjustable lock-up time device
US4506589A (en) * 1982-10-06 1985-03-26 Junker Systems, Inc. Firing mechanism for automatic firearm
US5164534A (en) * 1987-04-20 1992-11-17 Royster John L Secondary recoil absorption mechanism for use on a firearm
US6318014B1 (en) * 1999-12-30 2001-11-20 Richard R. Porter Handgun adapter
US7201094B2 (en) 2002-06-07 2007-04-10 Gamma Kdg Systems Sa Firearm with enhanced recoil and control characteristics
US9038524B2 (en) * 2002-06-07 2015-05-26 Kriss Systems Sa Firearm with enhanced recoil and control characters
EP1514069B1 (en) 2002-06-07 2016-12-28 KRISS Systems SA Recoil control device
DE102008027709A1 (en) * 2008-06-11 2009-12-17 Blaser Finanzholding Gmbh Closure for a repeating rifle and system box for such a closure
US9217614B2 (en) * 2011-02-11 2015-12-22 Jorge Pizano Firearm having an articulated bolt train with transversally displacing firing mechanism, delay blowback breech opening, and recoil damper
US9194637B2 (en) * 2013-05-03 2015-11-24 Sturm, Ruger & Company, Inc. Universal magazine latch mechanism for firearm
US10627189B2 (en) 2018-01-23 2020-04-21 Sagi Faifer Stabilizing device for a small arms weapon
USD900271S1 (en) 2019-01-21 2020-10-27 Sagi Faifer Folding gun stock

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457802A (en) * 1944-06-06 1949-01-04 Bauer August Silencer and recoil reducer for firearms
US2448593A (en) * 1944-10-26 1948-09-07 Bell Telephone Labor Inc Flash and blast reducer
US3090150A (en) * 1960-06-13 1963-05-21 Fairchild Engine & Airplane Hand guard construction
US20050262997A1 (en) * 2004-01-20 2005-12-01 John Brixius Gun barrel assembly
US7353741B2 (en) 2004-01-20 2008-04-08 John Brixius Gun barrel assembly
US20100058921A1 (en) * 2004-01-20 2010-03-11 John Brixius Gun barrel assembly
US7707763B2 (en) 2004-01-20 2010-05-04 John Brixius Gun barrel assembly
US20100224053A1 (en) * 2004-01-20 2010-09-09 John Brixius Gun barrel assembly
US7810272B2 (en) 2004-01-20 2010-10-12 John Brixius Gun barrel assembly
US8857307B2 (en) * 2011-01-17 2014-10-14 Gamo Outdoor, S.L. Method for manufacturing a bull barrel equipped with a silencer and silencer-equipped bull barrel thus obtained
US20140007481A1 (en) * 2011-01-17 2014-01-09 GTAMO Outdoor, S.L. Method for manufacturing a bull barrel equipped with a silencer and silencer-equipped bull barrel thus obtained
US9261316B2 (en) 2012-01-13 2016-02-16 Gamo Outdoor, S.L. Method for the manufacture of a barrel for compressed air or CO2 rifles and barrel for compressed air or CO2 rifles obtained
US9658010B1 (en) * 2014-10-13 2017-05-23 Paul Oglesby Heat shielding and thermal venting system
US10001340B1 (en) * 2014-10-13 2018-06-19 Paul Oglesby Thermal shielding and venting system
US20170336165A1 (en) * 2014-11-21 2017-11-23 Beretta Holding S.P.A. Gun, especially air gun or firearm
US10514224B2 (en) * 2014-11-21 2019-12-24 Beretta Holding S.P.A. Gun, especially air gun or firearm
US10900735B2 (en) 2014-11-21 2021-01-26 Beretta Holding S.P.A. Gun, especially air gun or firearm
US20210356224A1 (en) * 2019-09-05 2021-11-18 Centre Firearms Co., Inc. Monolithic noise suppression device with cooling features
US11725897B2 (en) * 2019-09-05 2023-08-15 Centre Firearms Co., Inc. Monolithic noise suppression device with cooling features
US20230296342A1 (en) * 2019-09-05 2023-09-21 Centre Firearms Co., Inc. Monolithic noise suppression device with purposely induced porosity for firearm

Also Published As

Publication number Publication date
CH95053A (en) 1922-06-01
DE407230C (en) 1924-12-17
FR535486A (en) 1922-04-15
DE412247C (en) 1925-04-16
GB170250A (en) 1921-10-06
US1452123A (en) 1923-04-17
US1425120A (en) 1922-08-08

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