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WO2008132739A2 - Indicateur d'état de magasin - Google Patents

Indicateur d'état de magasin Download PDF

Info

Publication number
WO2008132739A2
WO2008132739A2 PCT/IL2008/000565 IL2008000565W WO2008132739A2 WO 2008132739 A2 WO2008132739 A2 WO 2008132739A2 IL 2008000565 W IL2008000565 W IL 2008000565W WO 2008132739 A2 WO2008132739 A2 WO 2008132739A2
Authority
WO
WIPO (PCT)
Prior art keywords
magazine
tape
cartridges
indicator
cartridge
Prior art date
Application number
PCT/IL2008/000565
Other languages
English (en)
Other versions
WO2008132739A3 (fr
Inventor
Ori Gur-Ari
Uri Feigin
Original Assignee
Ori Gur-Ari
Uri Feigin
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 IL188379A external-priority patent/IL188379A0/en
Application filed by Ori Gur-Ari, Uri Feigin filed Critical Ori Gur-Ari
Priority to US12/598,078 priority Critical patent/US8186086B2/en
Priority to GB0920090.8A priority patent/GB2462035B/en
Priority to CN200880019169A priority patent/CN101796368A/zh
Publication of WO2008132739A2 publication Critical patent/WO2008132739A2/fr
Publication of WO2008132739A3 publication Critical patent/WO2008132739A3/fr

Links

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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/62—Magazines having means for indicating the number of cartridges left in the magazine, e.g. last-round indicators

Definitions

  • the present invention relates generally to firearm magazines, and more particularly, the invention relates to indication of the number of cartridges within a firearm magazine as well as the ability to retro-fit standard or modified magazines.
  • 5,052,138 to Crain relate to small-arms having electronic counting and electronic display means.
  • the disadvantages associated with electronic displays are their sensitivity to humidity, which cannot be controlled in battlefield conditions, and their reliance on a power source such as a battery, which may be suddenly and inconveniently depleted.
  • a light-emitting display is unwanted during a firefight for obvious reasons.
  • the weapon itself is modified to include a display, and not merely the magazine, representing an added expense, and retro-fitting of existing firearms is thus not be possible.
  • magazines with a transparent area of housing have been developed, so that cartridges may be viewed within.
  • a glance at the magazine gives a general indication whether reloading is necessary, as the user can estimate whether there are many or few cartridges left.
  • the magazine needs to be removed from within the weapon in order to view the transparent area, since the majority of the magazine is located within the opaque grip of the weapon.
  • the last few cartridges are always located at the uppermost part of the magazine, so that the entire magazine needs to be removed from the weapon in order to view them.
  • an additional step is required to check the number of cartridges, which is especially disadvantageous during a live firefight.
  • the indicator member is provided with a series of knots at predetermined intervals so that the number of knots on the portion of the indicator member projecting outside the body of the magazine equals the number of bullets remaining in the magazine. More elaborately, each knot can correspond to a predetermined number of remaining bullets, or the knots can vary in configuration to provide a tactile code of the number of remaining bullets so that the user only needs to feel the knot closest to the magazine to determine the number of bullets remaining.
  • the follower spring which advances the follower plate upon which the cartridges rest, may be viewed via a transparent window, and one portion of the spring is colored differently than the rest of the spring. A user may view which color is apparent through the window, and may determine whether the color is associated with a full or near-empty magazine.
  • movement of the follower spring rotates a disk 104, which has a pointer or other numerical indication of the ammunition level remaining.
  • the Jakubaschk patent contains numerous components, raising the cost of manufacture, and the likelihood of failure of the mechanism. Additionally, the Jakubaschk magazine is lengthened and non-standardized compared to an ordinary magazine, which is problematic in terms of magazine-related accessories.
  • a further drawback of the invention s known in the art is the inability to use standard length magazines conjunctively with such an indicator.
  • the magazine should not require a power source, and should be suited for battle-field conditions.
  • the magazine should be easily adaptable for many different types of weapons, including assault rifles as well as small arms, without the need to modify the actual weapon.
  • the magazine should automatically indicate the number of cartridges remaining, at all times, without the need for user intervention or actuation of the indicating mechanism, which could distract a user in a live firefight.
  • the present invention provides a magazine with an indicator to display the number of cartridges present, said magazine having a magazine housing, and comprising: a) a graduated tape having printed thereupon, a series of numbers representing the number of cartridges present in the magazine; b) an indicator window present in the magazine housing, configured to display the portion of said tape showing an indication of the number of cartridges remaining in said magazine; c) a cartridge advancement spring which is fully contracted when the magazine is full of cartridges and extends in stepwise fashion as each cartridge is expended; d) a cartridge advancement plate affixed to the movable end of said cartridge advancement spring; such that as each cartridge is expended, said cartridge advancement plate draws said graduated tape, and a respective indication of the number of cartridges remaining is displayed upon said tape in said window.
  • the magazine as used herein shall include any magazine capable of being used in a firearm, including but limited to, handguns, revolvers, rifles, shotguns, carbines, sub machine guns (SMG' s), assault rifles and the like
  • Fig. 1 is a diagrammatic representation of the magazine showing a window indicating the number of cartridges, constructed according to the principles of the present invention
  • Fig. 2 is a cutaway representation of the empty magazine showing the graduated tape used to indicate the number of cartridges present, constructed according to the principles of the present invention
  • Fig. 3 is a cutaway representation of the magazine when it is full, with an exploded view of the indicator window area, constructed according to the principles of the present invention
  • Fig. 4 is a cutaway representation of the graduated tape winding mechanism, constructed according to the principles of the present invention.
  • the magazine of the invention has an ammunition indicating window, displaying within a numerical value indicative of the number of cartridges remaining within the magazine.
  • the displayed value is controlled mechanically, by means of a spring-biased graduated tape, which winds or unwinds to match the number of cartridges remaining.
  • One end of the graduated tape is fixed to the cartridge advancement plate, such that movement of the cartridge advancement plate, results in respective winding or unwinding of the graduated tape.
  • Figure 1 is a diagrammatic representation of a magazine 102 of the invention, having an ammunition indicator window 106, wherein the window displays the number of cartridges present.
  • a numerical value 104 representing the number of cartridges present is shown in the indicator window 106.
  • the numerical value is printed upon graduated tape (best shown in Figs.2, 4), which is stretched below the display window.
  • the graduated tape is preferable manufactured of metal.
  • Indicator window 106 is preferably covered with transparent plastic, or may be open to the environment. A user may quickly glance at the numerical value 104 displayed in the indicator window 106, to see whether the contents of the magazine are in danger of depletion.
  • the magazine casing 110 is shown, and the end of the top-most cartridge 124 is visible.
  • the indicator window 106 is located near the lower third of the magazine, as shown in Figure 1, on the thin side of the magazine that faces the user when the magazine is inserted in the weapon.
  • the inventors have determined that this area will face the user at all times, so that a quick glance will suffice to view the number of cartridges with minimum effort.
  • the enemy will be unable to view the display due to its location and size.
  • the display cannot be read from a distance of several feet.
  • Figure 2 is a cutaway representation of an indicator mechanism 204 situated in a magazine 212 constructed according to the principles of the present invention.
  • the Figure depicts the back of the indicator window 206, the fully extended graduated tape 216 used to display the number of cartridges present, and a perspective view of the tape winding housing 220.
  • One end of the graduated tape 216 is attached to the cartridge advancement plate 208, and the graduated tape 216 has been fully extended from its housing 220.
  • the numerical value shown in the indicator window 206 will read "empty" or "zero".
  • the coloring may be highly visible near the "empty/zero" mark.
  • tape winding housing 220 is substantially fouling resistant. Alternatively, tape winding housing 220 is fouling proof. Preferably, tape winding housing 220 is substantially water resistant.
  • tape winding housing 220 is water proof.
  • graduated tape 216 can be replaced by a string, a cord, a metallic tape, a flat spring wither metallic or non-metallic and the like.
  • graduated tape 216 includes at least two "zones" indicating varying levels of magazine status. Namely and as shown in Figure 2, graduated tape includes a "red" zone 222 for readily indicating the number of cartridges remaining in the magazine is very low and thus providing a visual stimuli for the user to reload.
  • graduated tape 216 includes a "yellow" zone 224 for readily indicating the number of cartridges remaining in the magazine is low and thus providing a visual stimuli for the user to either reload or prepare to reload.
  • graduated tape 216 includes a "green" zone 226 for readily indicating the number of cartridges remaining in the magazine is satisfactory, thus providing a visual stimuli for the user that a reload is not presently required.
  • red zone 222 can be readily “set” to indicate any predetermined number of cartridges as the user, department or manufacturing company may see fit.
  • "yellow” zone 224 can be readily “set” to indicate any predetermined number of cartridges as the user, department or manufacturing company may see fit.
  • "green” zone 226 can be readily “set” to indicate any predetermined number of cartridges as the user, department or manufacturing company may see fit.
  • tape winding housing 220 can be readily aligned such that, in use, graduated tape 216 does no come into contact with cartridge advancement spring 218.
  • magazine 212 can be a standard length and style magazine and thus is readily retro-fitted and/or manufactured including indicator mechanism 204.
  • magazine 212 is an assault rifle magazine or a carbine magazine.
  • magazine 212 is selected from the group consisting of an M- 16 magazine, an M-4 magazine, an AR-15 magazine, an AK-47 magazine, an AK-74 magazine, an AKM magazine, a H&K G36 magazine, a H&K 416 magazine, an H&K MP5 magazine, an H&K94 magazine, a SCAR magazine, a Tavor magazine, a Galil Magazine, an Uzi magazine, an XM8 magazine, an M21 magazine and any derivative thereof.
  • magazine 212 can be a standard length and style magazine and thus can be readily manufactured including indicator mechanism 204.
  • an aperture 228 is formed in the base of magazine 212 for readily displaying an indication of the number of cartridges in magazine 212 through the base of magazine 212.
  • a user can readily inspect a single magazine in a holster, a pouch or a carrier and immediately discern the status of magazine 212.
  • aperture 228 for displaying the status of magazine 212 by viewing graduated tape 216 either solely or conjunctively with the use of indicator window 206.
  • a user can readily inspect a plurality of magazines 212 on a ballistic vest, load bearing vest, pouches, carriers and the like by simply viewing the bases of magazines 212.
  • Figure 3 is a cutaway representation of the magazine 322 when it is full, with an exploded view of the indicator window area, constructed according to the principles of the present invention. Depicted are the topmost cartridge 324, and the fully contracted cartridge advancement spring 318. A side view of the graduated tape winding housing 320 is shown, and the spring/plate connector 314 is shown. The exploded view of the indicator window area includes an edge of the fully retracted cartridge advancement plate 308, which is attached by means of pin 326 to the end of the graduated tape 316. A side view of the indicator window 306 is shown. Since cartridge advancement plate 308 is fully retracted, the attached graduated tape 316 is similarly fully retracted within its housing 320, and thus will display the numerical value corresponding to a full magazine, within the indicator window 306. Alternatively, the graduated tape may be fixed to the cartridge advancement plate by means of a spring.
  • the graduated tape 316 and its housing 320 are located beneath the cartridge advancement plate 308, they do not contact the cartridges and will therefore not interfere with loading of the magazine or with use of the weapon.
  • graduated tape 316 will be pulled by cartridge advancement plate 308 and unwound from within its housing 320, to show a continuously lower number within the indicator window 306.
  • the last few numbers printed upon the graduated tape may be printed in a highly visible color or may have a highly visible background color, so that a user may be made aware of the imminent need to reload the weapon.
  • Figure 4 is a cutaway representation of the graduated tape winding mechanism 428, constructed according to the principles of the present invention. Inside the cutaway edge of graduated tape winding housing 420 are revealed the details of storage of the tape. The initially protruding portion of the tape 416 is fed out of housing 420. A fixed spring 430 winds and unwinds inside a concentric inner chamber of tape winding housing 420 as tape 416 extends and retracts. Fixed spring 430 returns tape 416 to its place.
  • tape 416 includes a visual indicator 422 for indicating the magazine status.
  • mechanism housing 420 is aligned with indicator 422 for readily accommodating mechanism 428 for indicating the magazine status.
  • mechanism 428 for indicating the magazine status encased in housing 420 Preferably, mechanism 428 for indicating the magazine status encased in housing 420.
  • mechanism 428 for indicating the magazine status is substantially fouling resistant.
  • mechanism 428 for indicating the magazine status is substantially water resistant.
  • mechanism 428 for indicating the magazine status is substantially fouling proof.
  • mechanism 428 for indicating the magazine status is substantially water proof.
  • tape 416 is includes and/or is colored with a phosphorus compound, fluorescent and/or luminescent such that indicator 422 is readily viewable in any light condition.
  • the magazine is suitable for small arms or for any other type of gun, such as an assault rifle.
  • the indicating magazine of the invention is inexpensive to manufacture, and may thus be suited for mass manufacture, such as for military use.
  • the relatively simple design results in less chance of fouling of the mechanism.
  • the indicating magazine is not sensitive to humidity, and is suited for battlefield use, since the display will be invisible to the enemy from any distance, and will not emit light which could bring to unwanted detection of the user.
  • the user does not need to actuate the indicating mechanism, which is active at all times to display the number of cartridges remaining. This is especially advantageous in a live firef ⁇ ght, since no additional steps, which could be distracting, are necessary in order to determine how many cartridges remain.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Tape Cassette Changers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

La présente invention concerne un magasin doté d'un indicateur affichant le nombre de cartouches présentes dans celui-ci. Le magasin comporte une bande graduée comprenant une série de nombres gradués sur celle-ci, représentant le nombre de cartouches présentes dans le magasin. Une partie de la bande est affichée dans une fenêtre d'indicateur présente sur le logement du magasin, pour présenter une indication du nombre de cartouches restant dans ledit magasin.
PCT/IL2008/000565 2007-04-30 2008-04-29 Indicateur d'état de magasin WO2008132739A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/598,078 US8186086B2 (en) 2007-04-30 2008-04-29 Magazine status indicator with graduated tape
GB0920090.8A GB2462035B (en) 2007-04-30 2008-04-29 Magazine status indicator
CN200880019169A CN101796368A (zh) 2007-04-30 2008-04-29 弹匣状态指示器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US91477007P 2007-04-30 2007-04-30
US60/914,770 2007-04-30
IL188379A IL188379A0 (en) 2007-04-30 2007-12-24 Magazine with ammunition status indicator
IL188379 2007-12-24

Publications (2)

Publication Number Publication Date
WO2008132739A2 true WO2008132739A2 (fr) 2008-11-06
WO2008132739A3 WO2008132739A3 (fr) 2010-01-07

Family

ID=39926190

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/000565 WO2008132739A2 (fr) 2007-04-30 2008-04-29 Indicateur d'état de magasin

Country Status (1)

Country Link
WO (1) WO2008132739A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481513A (en) * 2010-06-22 2011-12-28 Guy Gabay Apparatus for displaying number of bullets in a magazine
US20120246988A1 (en) * 2011-03-28 2012-10-04 Zachary Daniel Ladner Systems and Methods for Limiting Capacity of Firearm Magazines
EP2778596A1 (fr) * 2013-03-11 2014-09-17 Mark S. Williams Appareil et procédés de suivi de l'approvisionnement de munitions dans un chargeur
EP2829837A1 (fr) * 2013-07-26 2015-01-28 TechTonique SA Chargeur pour arme à feu muni d'un dispositif indicateur du nombre de cartouches restantes
US10041752B2 (en) 2011-03-28 2018-08-07 Zachary Daniel Ladner Universal systems and methods for adjustably limiting capacity of firearm magazines
US11175106B2 (en) 2011-03-28 2021-11-16 Magazineblocks Llc Universal systems and methods for adjustably limiting capacity of firearm magazines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1202768A (en) * 1915-08-23 1916-10-31 Arnold Electric Company Magazine-firearm.
DE3325216C2 (de) * 1983-07-13 1986-10-09 Heckler & Koch Gmbh, 7238 Oberndorf Magazin für eine Handfeuerwaffe
US5206444A (en) * 1990-11-16 1993-04-27 Oliver Harry M Device that displays count of rounds in firearm magazines
US5642581A (en) * 1995-12-20 1997-07-01 Herold; Michael A. Magazine for a firearm including a self-contained ammunition counting and display system
US5799432A (en) * 1997-02-12 1998-09-01 Barry M. Wright, Sr. Self-contained magazine and weapon system incorporating same
IL153465A (en) * 2002-12-16 2013-07-31 Hamafteach Hamistovev Ltd Stack @ Tool @ Weapon @ Possessing @ Means @ Experience

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481513A (en) * 2010-06-22 2011-12-28 Guy Gabay Apparatus for displaying number of bullets in a magazine
GB2481513B (en) * 2010-06-22 2012-06-13 Guy Gabay A magazine add-on
US8601733B2 (en) 2010-06-22 2013-12-10 Guy GABAY Magazine add-on
US20120246988A1 (en) * 2011-03-28 2012-10-04 Zachary Daniel Ladner Systems and Methods for Limiting Capacity of Firearm Magazines
US9328982B2 (en) * 2011-03-28 2016-05-03 Zachary Daniel Ladner Systems and methods for limiting capacity of firearm magazines
US10041752B2 (en) 2011-03-28 2018-08-07 Zachary Daniel Ladner Universal systems and methods for adjustably limiting capacity of firearm magazines
US11175106B2 (en) 2011-03-28 2021-11-16 Magazineblocks Llc Universal systems and methods for adjustably limiting capacity of firearm magazines
EP2778596A1 (fr) * 2013-03-11 2014-09-17 Mark S. Williams Appareil et procédés de suivi de l'approvisionnement de munitions dans un chargeur
EP2829837A1 (fr) * 2013-07-26 2015-01-28 TechTonique SA Chargeur pour arme à feu muni d'un dispositif indicateur du nombre de cartouches restantes
WO2015011596A1 (fr) * 2013-07-26 2015-01-29 Techtonique Sa Chargeur pour arme a feu muni d'un dispositif indicateur du nombre de cartouches restantes
US9797667B2 (en) 2013-07-26 2017-10-24 Techtonique Sa Magazine for a firearm provided with a device indicating the number of remaining cartridges

Also Published As

Publication number Publication date
WO2008132739A3 (fr) 2010-01-07

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