EP0785408A2 - Dispositif pour la protection contre la corrosion - Google Patents

Dispositif pour la protection contre la corrosion Download PDF

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Publication number
EP0785408A2
EP0785408A2 EP19960119323 EP96119323A EP0785408A2 EP 0785408 A2 EP0785408 A2 EP 0785408A2 EP 19960119323 EP19960119323 EP 19960119323 EP 96119323 A EP96119323 A EP 96119323A EP 0785408 A2 EP0785408 A2 EP 0785408A2
Authority
EP
European Patent Office
Prior art keywords
corrosion protection
protection device
barrel
housing
opening
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.)
Withdrawn
Application number
EP19960119323
Other languages
German (de)
English (en)
Inventor
Uwe Nawrot
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE29612338U external-priority patent/DE29612338U1/de
Application filed by Individual filed Critical Individual
Publication of EP0785408A2 publication Critical patent/EP0785408A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/24—Cartridges, i.e. cases with charge and missile for cleaning; for cooling; for lubricating ; for wear reducing

Definitions

  • the invention relates to a corrosion protection device for the barrel and / or the cartridge chamber of a firearm.
  • a firearm If a firearm is not used for a long time, the inside of its barrel must be protected against corrosion if it is not provided with a corrosion-inhibiting coating.
  • an oil-soaked rag or felt body is inserted into the barrel to protect against corrosion, thus distributing the preserving oil on the inside of the barrel.
  • a cleaning cartridge which is inserted into the cartridge chamber.
  • the felt body is designed as a bullet of the cartridge, which is shot through the barrel with compressed air.
  • the barrel is cleaned and wetted with the cleaning solution of the felt body.
  • Oil shots The bullet of the first shots is changed unpredictably by the oil on the barrel inner wall in terms of shot direction and speed. Only after several oil shots is the barrel cleaned from the oil in such a way that the shots lead to predictable and reproducible results.
  • a preservation cartridge is known from AT-A-344 543 which has a corrosion protection agent which contains a substance which dissipates corrosion-inhibiting gases. This avoids wetting the inside of the barrel with oil, so that when the firearm is re-used, there is no oil shot.
  • the corrosion-inhibiting effect of the preservation cartridge is of shorter duration and of poorer quality than that of barrel preservation with oil.
  • the object of the invention is to provide an improved corrosion protection device.
  • a storage element binding the corrosion protection agent is inserted into the barrel or into the cartridge chamber of the firearm, the corrosion protection agent of the inserted storage element evaporating into the barrel interior. Furthermore, a stopper is provided which can be inserted into the barrel opening of the barrel in such a way that the stopper closes the barrel opening in an airtight manner and can be removed again. Due to the airtight seal of the barrel opening, the gaseous anti-corrosion agent can no longer escape from the inside of the barrel, so that the corrosion-inhibiting effect of the anti-corrosion agent lasts many times longer than with an unlocked barrel.
  • the plug inserted into the barrel opening also prevents moisture from penetrating into the barrel, thereby practically eliminating an essential corrosion factor, namely moisture inside the barrel.
  • the plug is simply removed from the barrel opening and the storage element is removed from the barrel or the cartridge chamber, whereupon the firearm is ready to fire again. Since the inside wall of the barrel is dry and clean, the first sharp shot is accurate and reproducible. So-called oil shots when resuming use of firearms do not occur.
  • the stopper prevents odors from escaping evaporated corrosion protection agent.
  • the storage element is preferably a housing which has at least one opening and contains a storage body for the corrosion protection agent.
  • the anti-corrosion agent is stored or stored in the storage body.
  • the housing provides for the preservation of the corrosion protection agent and the mechanical protection of the storage body.
  • the corrosion protection agent of the storage body escapes through the opening of the housing into the barrel.
  • the elongate housing has the opening at one longitudinal end, the Opening can be closed by the stopper.
  • the stopper also serves to close the opening of the housing, thereby completely preventing the corrosion protection agent from evaporating. It is therefore unnecessary to prepare, for example fill, the storage element immediately before it is inserted into the gun barrel, so that the handling of the corrosion protection device is very simplified.
  • the plug is in the housing opening so that it is immediately at hand when the storage element is inserted and does not have to be searched for.
  • the plug After using the anti-corrosion device and removing the storage element from the barrel and / or the cartridge chamber of the firearm, the plug is reinserted into the housing opening, so that further evaporation of the anti-corrosion agent is prevented and the anti-corrosion device is therefore reusable even after a long time.
  • the diameter of the opening of the housing is preferably approximately equal to the inside diameter of the barrel.
  • the housing can have the shape of a cartridge and can be inserted into the cartridge chamber of the firearm. This forces the user to remove the storage element from the cartridge chamber before reinstalling live ammunition. An accidental forgetting of the storage element in the barrel of the firearm before the use of live ammunition and thus the risk of a projectile getting stuck and a barrel explosion is excluded.
  • the clamping force of the inserted stopper is preferably dimensioned such that the stopper is driven out of the barrel opening from a defined overpressure in the barrel.
  • the defined overpressure is less than the pressure generated by the air column in front of the projectile during a sharp shot.
  • the plug is pushed out of the barrel opening by the air column which is pushed in front of the projectile before the projectile itself reaches the barrel opening. This measure prevents an excessive back pressure from being built up on the projectile, which would slow the projectile down. High pressures within the barrel and the risk of a barrel explosion can be avoided.
  • the clamping force of the stopper in the barrel opening is preferably so low that the stopper can be pulled out of the barrel opening manually.
  • a plug pulling tool is not required. When firearm use is resumed, this enables simple, uncomplicated and quick removal of the plug. This increases operational safety and prevents damage to the barrel opening from tools.
  • the storage body containing the anti-corrosion agent consists of a liquid absorbing material, in particular of felt, cotton wool or cardboard. This makes it possible to implement a simple and inexpensive storage body which can absorb and store sufficient corrosion protection agents, which can evaporate when the storage element is inserted into the barrel or the cartridge chamber.
  • an anti-corrosion agent a chemical that evaporates at room temperature is preferably used, which neutralizes the moisture in the barrel against corrosion.
  • the storage body can alternatively also consist of plastic, in which the anti-corrosion agent is embedded.
  • the anti-corrosion agent is detachably bound to the plastic so that the anti-corrosion agent cannot drip or leak from the housing.
  • the stopper is preferably designed as a mushroom-shaped body, which consists of a shaft and a head.
  • the shaft is inserted into the barrel opening until the head hits the edge of the barrel opening. This prevents the entire plug from being accidentally inserted into the barrel.
  • the head also forms an attachment for gripping and pulling out the plug from the barrel opening or the housing opening of the storage element.
  • the shaft of the plug can be cylindrical and its diameter approximately the same and the head diameter larger than the inside diameter of the barrel.
  • a conical region is preferably arranged between the cylindrical shaft and the head of the plug, the outer diameter of the conical region being larger than the barrel inner diameter and smaller than the head outer diameter. While the cylindrical shaft of the stopper forms a guide part for guiding the stopper when inserting or pulling out, the conical region serves on the one hand to clamp the stopper to the barrel opening and on the other hand to securely seal the stopper body with the barrel opening edge. The edge of the barrel opening can cut into the conical area of the plug when the plug is inserted, thereby causing a secure jamming and sealing.
  • the conical region of the inserted stopper can also fill out trains between fields of a helically arranged fields and a train having trains. Even in the case of firearm barrels designed in this way, an important sealing of the barrel against the ambient atmosphere is achieved for the corrosion-inhibiting effect.
  • the stopper is preferably made of an elastic, non-water-absorbing material. This ensures that, on the one hand, the stopper can adapt well to the opening contour of the barrel or the storage element housing and can seal the barrel well. On the other hand, no moisture diffusing from the plug can be introduced into the barrel interior through the plug. Silicone is preferably used for the stopper.
  • the storage body can be designed to be exchangeable in the housing. As soon as the anti-corrosion agent has completely evaporated, the storage body is replaced, while the housing is reusable. This avoids waste and reduces conservation costs.
  • the housing of the storage element preferably consists of a rustproof material or is coated with a rustproof protective layer. This will a corroding of the storage element housing and an associated contamination of the firearm barrel and / or the cartridge chamber avoided.
  • the storage element housing can consist of brass and be galvanized on the outside with a zinc or nickel layer.
  • the zinc or nickel forms a thin oxide layer on the housing surface, which provides passive protection against corrosion.
  • the housing material is also active corrosion protection for the barrel if it consists of a metal that is more noble in the voltage series than the metal on the outside of the barrel.
  • the housing can additionally or alternatively be covered with a layer of lacquer.
  • a baffle plate is preferably arranged on the longitudinal end of the housing opposite the housing opening and is used, for example, instead of a primer in the rear wall of the housing. It can be a silicone plate.
  • the baffle plate serves to buffer the firing pin of the firearm when it has been triggered and impacts the rear of the storage element housing. The impact plate prevents damage to the hardened firing pin.
  • the silicone of the baffle plate preferably has a hardness of 60 shore.
  • a corrosion protection device for protecting the barrel and the cartridge chamber of an unused firearm against corrosion is shown.
  • the corrosion protection device consists of a storage element 10 and a plug 11 closing the storage element 10.
  • the storage element 10 has a brass cartridge housing 13 as the housing, the firing pin-side opening 23 of which is closed with a silicone stop plate 14 and the running-side opening 24 is closed with the silicone plug 11.
  • a cylindrical felt body 17 is arranged as a storage body, which is impregnated with an anti-corrosion agent that can evaporate at room temperature.
  • the cylindrical main body 16 is followed by a conically tapering housing area 18 towards the barrel end of the cartridge housing 13, which ends in a cylindrical cartridge end area 19.
  • the cartridge housing 13 together with the stop plate 14 has exactly the shape and contour of a sharp cartridge for the respective firearm.
  • cartridge housings can be used as the cartridge housing 13, the stop plate 14 being inserted into the opening 23 on the rear side of the housing instead of an ignition plate.
  • the circular stop plate 14 covers the entire rear side of the cartridge housing 13 and is inserted with a plug-in part 22 into the rear ignition plate opening 23 of the housing 13.
  • the cartridge housing 13 is made of brass and is galvanized with zinc, which forms a thin protective oxide layer on the brass. However, it can also be galvanized with nickel and additionally or alternatively coated with a layer of lacquer or plastic that protects against corrosion. However, the housing can also consist entirely of a rustproof material, for example plastic, or of a noble metal.
  • the plug 11 has a cylindrical region 25, the outer diameter of which is approximately equal to the inner diameter of the end region 19 of the housing 13.
  • a conical region 26 adjoins the cylindrical region 25 and opens into the plate-like head 27.
  • the conical region 26 is shorter than the cylindrical region 25.
  • the diameter of the conical region 26 extends from the diameter of the cylindrical Increasing range up to a diameter increased by 3 mm.
  • the diameter of the head 27 is dimensioned such that the head 27 projects radially beyond the plug opening 24, so that the plug can simply be pulled out of the plug opening 24 by engaging behind the outer edge of the head 27.
  • the cylindrical region 25 is provided at its free end with a bevel 28 which makes it easier to insert the plug into an opening.
  • the plug 11 is made of silicone, which is soft and elastic and absorbs little moisture.
  • FIG. 3 shows a cartridge chamber 31 and a barrel 32 of a firearm 30.
  • the storage element 10 is inserted into the cartridge chamber 31, the plug 11 being removed from the plug opening 24 of the storage element 10 and inserted into the barrel opening 34 of the barrel 32 from the outside. Since the housing 13 of the storage element 10 corresponds in shape and size to a normal, sharp bullet cartridge case, the storage element 10 can be inserted into the cartridge chamber 31 like a normal, sharp cartridge.
  • the storage element 10 also serves as a buffer cartridge for the firing pin 33, since the firing pin 33 can be triggered and strike against the soft baffle plate on the back of the cartridge housing 13 without the firing pin 33 being damaged.
  • the barrel 32 of the firearm 30 has, in order to produce a projectile swirl in the longitudinal direction, helical trains 41 and fields 42 on the inside of the barrel wall 40 on.
  • the cylindrical region 25 of the plug 11 has approximately the (smaller) inner diameter of the fields 42 and serves to guide and prevent the plug 11 from tilting in the barrel 32.
  • the conical region 26 of the plug 11 also fills the spaces formed by the cables 41 between the fields 42 at the barrel opening 34 so that it closes the barrel 32 airtight.
  • the stopper 11 ensures that the anti-corrosion agent evaporating from the felt body 17 cannot escape from the barrel 32, so that the effect of the anti-corrosion agent is retained for a very long time.
  • the plug 11 prevents the ingress of atmospheric moisture into the barrel 32 from the outside, as a result of which the corrosion protection effect is increased again.
  • an odor nuisance caused by the corrosion protection agent is also avoided, which is particularly advantageous with a large number of preserved firearms.
  • a firearm After use, a firearm must be preserved, especially if it is not used for a long time, to prevent corrosion of the barrel and the chamber.
  • the barrel and the cartridge chamber of the firearm should first be cleaned of aggressive gunpowder residues with a dry cloth. Then the storage element 10 closed by a stopper 11 is opened by gripping the stopper 11 with the fingers and pulling it out of the opening 24 (FIG. 1). The storage element 10 thus opened is then inserted into the cartridge chamber 31 of the firearm 30 and locked (FIG. 3).
  • the chemical anti-corrosion agent can now in the entire interior of the firearm 30, namely in the cartridge chamber 31 and barrel 32 evaporate.
  • the anti-corrosion agent is distributed in the barrel 32 and the stopper 11 is inserted into the barrel opening 34 and clamped, whereby with its conical area 26 it also fills the cables 41 between the fields 42 and thereby closes the barrel opening 34 in an airtight manner.
  • Neither anti-corrosion agent can now escape from the barrel 32, and, if necessary, moist air can penetrate from the outside into the barrel 32.
  • the clamping zone has a length of a few millimeters.
  • the storage element 10 To resume use, the storage element 10 must be removed from the cartridge chamber 31 of the firearm 30. Only then is it possible to use live ammunition. This prevents the memory element 10 from being accidentally left in the firearm 30 when the firearm 30 is used again, which in the worst case could lead to barrel explosions.
  • the plug 11 In order to open the barrel opening 34 again, the plug 11 is pulled out of the barrel opening 34 and inserted again into the plug opening 24 of the storage element 10, thereby preventing further evaporation of the corrosion protection agent and allowing the storage element 10 to be reused even after a long period of non-use.
  • an evaporating corrosion protection agent no particles accumulate on the inside of the barrel, so that even the first shot after removal of the storage element 10 is unaffected and accordingly leaves the barrel 32 precisely and in a defined manner.
  • the conical region 26 of the plug 11 is dimensioned such that the jamming of the conical region 26 in the running opening 34 is only so tight that the plug 11 holds securely in the running opening 34.
  • the clamping force is so low that the plug 11 can be easily removed and, if necessary, is pressed out of the barrel opening 34 by the air column in front of the projectile when a sharp shot is fired.
  • the storage element 10 is adapted in its dimensions to the respective caliber of the firearm to be preserved and has approximately the shape and size of a normal, sharp cartridge.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP19960119323 1996-01-20 1996-12-03 Dispositif pour la protection contre la corrosion Withdrawn EP0785408A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19602100 1996-01-20
DE19602100 1996-01-22
DE29612338U 1996-07-16
DE29612338U DE29612338U1 (de) 1996-01-20 1996-07-16 Korrosionsschutzvorrichtung

Publications (1)

Publication Number Publication Date
EP0785408A2 true EP0785408A2 (fr) 1997-07-23

Family

ID=26022231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960119323 Withdrawn EP0785408A2 (fr) 1996-01-20 1996-12-03 Dispositif pour la protection contre la corrosion

Country Status (1)

Country Link
EP (1) EP0785408A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344543B (de) 1976-02-03 1978-07-25 Andres & Dworsky Ohg Abschlagpatrone fuer schrotflinten sowie korrosionshemmender einsatz hiefuer
US5341744A (en) 1993-02-22 1994-08-30 Xiao Shi Cleaning shell for firearms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344543B (de) 1976-02-03 1978-07-25 Andres & Dworsky Ohg Abschlagpatrone fuer schrotflinten sowie korrosionshemmender einsatz hiefuer
US5341744A (en) 1993-02-22 1994-08-30 Xiao Shi Cleaning shell for firearms

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