US2010178A - Flash eliminator for guns - Google Patents

Flash eliminator for guns Download PDF

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Publication number
US2010178A
US2010178A US637267A US63726732A US2010178A US 2010178 A US2010178 A US 2010178A US 637267 A US637267 A US 637267A US 63726732 A US63726732 A US 63726732A US 2010178 A US2010178 A US 2010178A
Authority
US
United States
Prior art keywords
gun
gases
liquid
air
muzzle
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.)
Expired - Lifetime
Application number
US637267A
Other languages
English (en)
Inventor
Bruin Gerrit De
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAAMLOOZE VENNOOTSCHAP NEDERLANDSCHE SPRINGSTOFFENFABRIEKEN
NAAMLOOZE VENNOOTSCHAP NL SPRI
Original Assignee
NAAMLOOZE VENNOOTSCHAP NL SPRI
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NAAMLOOZE VENNOOTSCHAP NL SPRI filed Critical NAAMLOOZE VENNOOTSCHAP NL SPRI
Application granted granted Critical
Publication of US2010178A publication Critical patent/US2010178A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/34—Flash dampers

Definitions

  • a layer of liquid is created between the outflowing hot gases and the surrounding atmosphere.
  • This layer prevents for a short time the gases from mixing with the air and accelerates the cooling down of the gases. Due to the strong expansion and subsequently to the mixing of the gases with the liquid, they are brought in such a condition that the gas mixture resulting from mixing with the air does no longer take fire.
  • solutions of inorganic or organic compounds, organic liquids, emulsions or suspensions, etc. decreasing the inflammability of gas mixtures may be used, as
  • a spraying device is mounted around or to the muzzle or further backwards on the stationary or recoiling parts of the gun, which device, according to the invention, is so constructed that just before discharging the gun it forms one or more somewhat diverging liquid layers in front of the muzzle, which temporarily envelop the outflowing gunpowder gases and. separate them from the surrounding air.
  • the liquid layer need not necessarily be uninterrupted.
  • a spray with closely spaced apertures or an atomizing spray instead of a slit also has a good effect.
  • the latter is ejected with force, so that over some distance the spray remains almost parallel to its original direction, while thereafter the liquid atomizes more and more. It is also desirable to make the diameter of the spray circle larger than that of the barrel of the gun. The space between the sprayer and the barrel may generally remain open without any objection.
  • Figure 1 is a side elevation view of a gun muzzle with one form of invention applied thereto.
  • Figure 2 is an end View of the gun muzzle shown in Figure 1.
  • the gun muzzle H has secured to it in a suitable manner as by brackets l2, 2.
  • liquid conduit It which terminates in a ring l6 surrounding the gun bore at the muzzle and held in place by a suitable means such as bracket H3.
  • the ring it has projecting from it in direction of the projectile travel a series of nozzles or orifices 2B.
  • the nozzles or orifices are preferably divergent to compensate in a degree for the expansion of the gases issuing from the gun.
  • valve means of any suitable construction For the sake of illustration I have shown conventionally a valve V.
  • the spraying device may be mounted independently of the gun and if desired may operate for.
  • Sprayers may be mounted for each gun, connected to a pipe through which the liquid is supplied under pressure.
  • mobile mountings it is desirable to make use of the 'recoilin'g of the,
  • a regulating mechanism connected with the discharging device, may be used.
  • the invention is applicable to all kinds of firearms.
  • Apparatus for eliminating flashes from heavy or light ordnance comprising means for forming freely in air at the muzzle of a gun a liquid envelope for the outflowing gunpowder I gases by the projection of liquid in the direction of a projectiletraveLand means to cause the formation of said envelope just prior to the gun discharge, whereby the hot gases are permitted to expand and cool within said envelope while being kept from freely mixing with the air.
  • Apparatus for eliminating flashes from heavy or light ordnance comprising spraying means positioned near the muzzle of the gun for creating freely in air an envelope for the outflowing gunpowder gases, and means to eject liquid from said spraying means in the direction of projectile travel just prior to the gun discharge, whereby the hot gases are permittedto expand and cool within said envelope while being kept from freely mixing with the air.
  • Apparatus for eliminating flashes from heavy or light ordnance comprising a spraying device positioned at the muzzle of a gun for form ing freely in air at least one diverging liquid envelope enclosing the gunpowder gases, and supply means for'delivering liquid under pressure to said device just prior to the gun discharge, whereby .the hot gases arepermitted to expand and cool within said envelope while being'kept from freely mixing withthev air.
  • heavy or light ordnance comprising projecting liquid freely in air at the muzzle of the gun in the direction of projectile traveljust prior to gun discharge to form an envelope enclosing the gunpowder gases at the moment of discharge, where'- by the hot gases are permitted to expand and; being keptfrom' cool within said envelope while freely mixing with air.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Nozzles (AREA)
US637267A 1931-10-13 1932-10-11 Flash eliminator for guns Expired - Lifetime US2010178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL164237X 1931-10-13

Publications (1)

Publication Number Publication Date
US2010178A true US2010178A (en) 1935-08-06

Family

ID=19776625

Family Applications (1)

Application Number Title Priority Date Filing Date
US637267A Expired - Lifetime US2010178A (en) 1931-10-13 1932-10-11 Flash eliminator for guns

Country Status (6)

Country Link
US (1) US2010178A (de)
BE (1) BE391291A (de)
CH (1) CH164237A (de)
DE (1) DE611432C (de)
FR (1) FR743542A (de)
GB (1) GB390425A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514883A1 (fr) * 1981-10-21 1983-04-22 Foerenade Fabriksverken Amortisseur de pression pour armes sans recul
FR2721100A1 (fr) * 1994-06-14 1995-12-15 Lacroix E Tous Artifices Système d'arme perfectionné pour une réduction de signature lors d'un tir.
WO2004076956A1 (en) * 2003-02-28 2004-09-10 Opus Akustik Ab A method and a device for noise reduction
US10145636B2 (en) * 2017-01-16 2018-12-04 David B. Stark Reduction of first shot noise in firearm sound suppressors
US10337819B1 (en) * 2017-01-16 2019-07-02 David B. Stark Reduction of first shot noise in firearm sound suppressors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514883A1 (fr) * 1981-10-21 1983-04-22 Foerenade Fabriksverken Amortisseur de pression pour armes sans recul
US4554860A (en) * 1981-10-21 1985-11-26 Forenade Fabriksverken Pressure damper for recoilless weapons
FR2721100A1 (fr) * 1994-06-14 1995-12-15 Lacroix E Tous Artifices Système d'arme perfectionné pour une réduction de signature lors d'un tir.
WO2004076956A1 (en) * 2003-02-28 2004-09-10 Opus Akustik Ab A method and a device for noise reduction
US10145636B2 (en) * 2017-01-16 2018-12-04 David B. Stark Reduction of first shot noise in firearm sound suppressors
US10337819B1 (en) * 2017-01-16 2019-07-02 David B. Stark Reduction of first shot noise in firearm sound suppressors

Also Published As

Publication number Publication date
BE391291A (de)
DE611432C (de) 1935-04-24
FR743542A (de) 1933-04-01
CH164237A (de) 1933-09-30
GB390425A (en) 1933-04-06

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