US20180003453A1 - Ammunition Indicator Systems, Devices, and Methods - Google Patents
Ammunition Indicator Systems, Devices, and Methods Download PDFInfo
- Publication number
- US20180003453A1 US20180003453A1 US15/199,259 US201615199259A US2018003453A1 US 20180003453 A1 US20180003453 A1 US 20180003453A1 US 201615199259 A US201615199259 A US 201615199259A US 2018003453 A1 US2018003453 A1 US 2018003453A1
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- US
- United States
- Prior art keywords
- magazine
- channel
- indicator rod
- ammunition
- follower
- 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.)
- Granted
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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
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
An ammunition indicator system of the present disclosure uses a magazine configured for housing bullet cartridges, the magazine comprising an outward-facing surface and a cavity. The system further has a follower that fits within the cavity and interfaces with the bullet cartridges inside the cavity. The follower further moves in a direction toward an open end of the magazine as bullet cartridges from the cavity are spent. The system further has a channel in the outward-facing surface of the magazine and an ammunition indicator rod configured for slidably coupling to the channel and fixedly coupling to the follower, the ammunition indicator rod indicates an amount of ammunition in the magazine.
Description
- There are hundreds of different assault rifles readily made and available in most industrially advanced regions of the world. A typical assault rifle uses an intermediate cartridge and a detachable magazine. Further, it is automatic or semi-automatic. An automatic assault rifle is designed such that it fires continually until the trigger is released. Whereas, a semi-automatic assault rifle fires only once when the trigger is pulled.
- One such assault rifle is an AK-47. Historically, it gave birth to many variants, which include, for example, AK-15s. Most of the assault rifles in this family of weapons comprise an arch-shaped detachable magazine that contains ammunition, i.e., a bullet cartridge. A carrier inside the rifle moves in a forward direction lengthwise of the rifle, and it loads a bullet cartridge in a barrel of the gun. The trigger is pulled by a gunman, and the bullet cartridge is initiated, i.e., the bullet cartridge is fired. The carrier moves backward, ejecting the spent cartridge, then forward again to load another bullet cartridge.
- The present disclosure can be better understood with reference to the following drawings. The elements of the drawings are not necessarily to scale relative to each other, emphasis instead being placed upon clearly illustrating the principles of the disclosure.
-
FIG. 1 is a side elevational view of a rifle in accordance with an embodiment of the present disclosure having an ammunition indicator rod that signals to a gunman using the rifle that a magazine loaded in the rifle has maximum ammunition capacity. -
FIG. 2 is the side elevational view of the rifle ofFIG. 1 , wherein the ammunition indicator rod signals to a gunman using the rifle that the magazine has few, if any, bullet cartridges left in the magazine. -
FIG. 3 is perspective view of a magazine used in the rifle that is depicted inFIG. 1 . -
FIG. 4A is a perspective view of follower that has been removed, but in operation is contained in, the magazine that is depicted inFIG. 3 . -
FIG. 4B is a perspective view of the ammunition rod depicted inFIG. 3 . -
FIG. 4C is a top view of the ammunition rod depicted inFIG. 4B . -
FIG. 5 is a side elevational view of the magazine -
FIG. 6 is a partial sectional view of the magazine depicted inFIG. 3 . -
FIG. 7 is a sectional view taken along line 7-7 ofFIG. 6 of the magazine depicted inFIG. 3 . -
FIG. 8 is a view of a rifle in accordance with an embodiment of the present disclosure having a gun sight and showing the ammunition indicator rod at a position that can be seen by a gunman relative to the gun sight and indicating that the magazine is low on bullet cartridges or empty. -
FIG. 9 is a view of a rifle in accordance with an embodiment of the present disclosure having a scope sight and showing the ammunition indicator rod at a position that can be seen by a gunman relative to the scope sight and indicating that the magazine is low on bullet cartridges or empty. - The present disclosure is directed to rifles. In particularly, a rifle in accordance with an embodiment of the present disclosure may be automatic, semi-automatic, or any type of rifle having a magazine of bullet cartridges that are spent during firing of the rifle. The rifle of the present disclosure has a magazine from which an ammunition indicator rod protrudes. As bullet cartridges are spent when the rifle is fired, the indicator rod moves. In one embodiment, the ammunition indicator rod is oriented such that it moves upward toward a gunman's line of sight. Thus, when the magazine has been fully emptied of bullet cartridges, the ammunition indicator rod is in the line of sight of the gunman such that the gunman can conclude that most, if not all, ammunition is spent. This conclusion may be made by the gunman without the gunman having to turn the gun to look at the magazine to determine if he needs an additional magazine.
-
FIG. 1 is a side elevational view of arifle 100 in accordance with an embodiment of the present disclosure. Therifle 100 is any type of assault weapon that uses a magazine to feed bullet cartridges to the barrel of therifle 100. For example, therifle 100 may be and AK-47 or an AR-15. The present disclosure is not limited to a particular type of assault weapon in other embodiments. Therifle 100 comprises abuttstock 102 coupled to an end of amidsection 112, and it comprises abarrel 113 coupled to the other end of themidsection 112. Further, therifle 100 comprises agrip 104 for holding the rifle by the gunman and atrigger 105 for initiating firing of therifle 100. - In the embodiment depicted in
FIG. 1 , therifle 100 comprises agun sight 111. This gun sight may be formed differently and be located at other positions along therifle 100 in other embodiments. In one embodiment, a scope sight (not shown but shown inFIG. 9 ) is coupled to therifle 100. - Operational components that effectuate loading and firing of the
rifle 100 are contained within themidsection 112; a detailed explanation of the operational components is unrelated to the present disclosure. Generally, the operational components load a bullet in thebarrel 113 from amagazine 103, and upon pulling thetrigger 105, the operational components launch a bullet (not shown) and expel an empty bullet cartridge (not shown). - The
rifle 100 of the present disclosure comprises themagazine 103 attached thereto, which is shown inFIG. 2 in a contracted stated, i.e., few or no bullet cartridges (shown inFIG. 6 ) have been loaded from themagazine 103. Themagazine 103 contains a plurality of bullet cartridges (not shown) and is configured to store bullet cartridges and feed bullet cartridges to thebarrel 113. - Note that the
ammunition indicator rod 109 does not extend all the way to the end ofchannel 108. Thechannel 108 extends all the way to the end of themagazine 103. This is described further herein with reference toFIGS. 5 and 6 . - In one embodiment, the
magazine 103 is detachable and is replaceable with a full magazine once the bullet cartridges are spent. In another embodiment, the magazine is integral with therifle 100. The capacity of themagazine 103 can vary from a few bullet cartridges to 100 bullet cartridges. The size, shape and capacity of themagazine 103 may vary in other embodiments of the present disclosure. - The
magazine 103 of therifle 100 is slidably coupled to anammunition indicator rod 109. In one embodiment, the slidableammunition indicator rod 109 is slidably coupled to themagazine 103 via achannel 108 and is fixedly coupled to a magazine follower (not shown). In this regard, as bullet cartridges are loaded and ejected, the follower moves upward toward themidsection 112 of the rifle. Because theammunition indicator rod 109 is fixedly coupled to the follower, as the follower moves upward toward therifle midsection 112, theammunition indicator rod 109 moves with the follower and extends further and further from thechannel 108 as the follower moves upward. - When all bullet cartridges contained within the
magazine 103 are spent, the follower rests closest to themidsection 112. When the follower is closest to themidsection 112, theammunition indicator rod 109 extends from the channel 108 a length such that a gunman sees the ammunition indicator rod as is shown inFIG. 2 . At the extended position, a gunman (not shown) looking through thesite 111 will see the position of the fully extendedammunition indicator rod 109 in his/her peripheral vision. Seeing the fully extendedammunition indicator rod 109 makes the gunman aware that it is about time or is time to load anew magazine 103. -
FIG. 3 is a perspective view of amagazine 103 in accordance with an embodiment of the present disclosure as is shown incorporated in therifle 100 inFIGS. 1 and 2 . Themagazine 103 comprises an outward-facingsurface 300 and abase plate 110 that closes themagazine 103. Further, themagazine 103 comprises anexposed end 302 that is covered with thebase plate 110 and aninsertion end 303 through which bullet cartridges are supplied to the barrel 113 (FIG. 1 ) of the rifle 100 (FIG. 1 ). - Coupled to the outward-facing
surface 300 is achannel 108. Note that thechannel 108 is depicted as protruding from thesurface 300. However, in other embodiments of the present disclosure, thechannel 108 may be flush with the outward-facingsurface 300. In one embodiment, thechannel 108 is a separate component that is made of a durable material, e.g., hard plastic, and molded onto the outward-facing surface via epoxy. In another embodiment, thechannel 108 may be integral with themagazine 103 and not a separate component. - The
ammunition indicator rod 109 is slidably contained and slidably coupled within thechannel 108. In one embodiment, described further herein, theammunition indicator rod 109 is coupled to the follower (shown inFIGS. 5 and 6 ). The follower is initially oriented in proximity to theexposed end 302 of themagazine 103. As bullet cartridges (not shown) are fed to the barrel 113 (FIG. 1 ) of the rifle 100 (FIG. 1 ), the follower moves upward in the cavity toward the midsection 112 (FIG. 1 ) of the rifle. Thus, as ammunition is used by the rifle 100 (FIGS. 1 and 2 ), the follower moves upward in the arch-shapedcavity 301 of the magazine, and as the follower moves up, theammunition indicator rod 109 moves upward toward the line of sight of a gunman (not shown). - Note that the
magazine 103 is shown as arch-shaped. However, the present disclosure encompasses any type and shape of magazine known in the art or future-developed. -
FIG. 4A is a perspective view of afollower 400 in accordance with an embodiment of the present disclosure. Thefollower 400 has a cube-shaped housing. It is sized so as to fit within the cavity 301 (FIG. 3 ). As described hereinabove, thefollower 400 is initially positioned in proximity to the exposed end 302 (FIG. 3 ), and asbullet cartridges 601 are spent, the follower moves toward the insertion end 303 (FIG. 3 ) of thecavity 301. - The
ammunition indicator rod 109 is coupled to an outward-facingsurface 403 of thefollower 400 so that when thefollower 400 is inserted within the magazine 103 (FIG. 3 ), theammunition indicator rod 109 extends through the outward-facing surface 300 (FIG. 3 ), slides through the channel 108 (FIG. 1 ), and extends past the end of the channel 108 (FIG. 1 ). - In one embodiment, there is an
opening 402, e.g., a round hole, through the outward-facingsurface 403. Theammunition indicator rod 109 extends through theopening 402 and epoxy is used to couple theammunition indicator rod 109 to thefollower 400. In another embodiment, theammunition indicator rod 109 is integral with the housing of thefollower 400. These are just exemplary means for coupling theammunition indicator rod 109 to the follower. Note that there are a number of other ways that theammunition indicator rod 109 may be coupled to the follower in other embodiments. -
FIG. 4B is a perspective view of a portion of an exemplaryammunition indicator rod 109 in accordance with the present disclosure. Notably, theammunition indicator rod 109 would be a solid dark color, e.g., black. However, atop portion 404 of theammunition indicator rod 109 would be a lighter color, e.g., neon. Theammunition indicator rod 109 would be configured such that theportion 404 would be visible to the gunman, i.e., theportion 404 would not extend around the entire circumference of theammunition indicator rod 109. -
FIG. 4C is a top view of the exemplaryammunition indicator rod 109 depicted inFIG. 4B . Notably, theportion 404 does not extend about the circumference of theammunition indicator rod 109. Thus, it is only visible to the gunman. -
FIG. 5 is a side elevational view of themagazine 103. Themagazine 103 is full with bullet cartridges (shown inFIG. 6 ), i.e., not bullet cartridges have yet been fed and loaded into the barrel 113 (FIG. 1 ). - When the
magazine 103 is fully loaded with bullet cartridges, thefollower 400 is located in proximity to theexposed end 302 of themagazine 103. Note that the cavity is continuous till the end of themagazine 103. However, theammunition indicator rod 109 extends through thechannel 108 and fits with theopening 402. - An
extension 504 of thechannel 108 to theexposed end 302 allows for insertion of theammunition indicator rod 109 into thechannel 108 during manufacture. Note that in other embodiments, thechannel 108 may not extend to theexposed end 302 of themagazine 103 given that different manufacturing processes may be used to form themagazine 103. -
FIG. 6 is a partial sectional view of themagazine 103. At theexposed end 302 of the magazine 103 aspring 600 interfaces with thefollower 400. In one embodiment, thespring 600 fits with a cavity of thefollower 400. As bullet cartridges are fed to and expelled from the barrel 113 (FIG. 1 ), thespring 600 urges thefollower 400 toward theinsertion end 303 of themagazine 103. As noted hereinabove and shown again inFIG. 6 , theammunition indicator rod 109 slidably fits within thechannel 108. - Further, an end of the
ammunition indicator rod 109 fits within opening 402 in thefollower 400. In this regard, the end of theammunition indicator rod 109 may be epoxied to thefollower 400 in some embodiments. Other methods may be used to fix theammunition indicator rod 109 to thefollower 400. - As the
follower 400 is urged toward theinsertion end 303, thefollower 400 applies an upward force on thebullet cartridges 601. The urging of thefollower 400 on thebullet cartridges 601 places thenext bullet cartridge 601 in a position to be loaded into the barrel 113 (FIG. 1 ). - When all the
bullet cartridges 601 have been spent, thefollower 400 is located in proximity to theinsertion end 303 of themagazine 103. Accordingly, theammunition indicator rod 109 slides in a direction toward theinsertion end 303 then extends above the rifle into the gunman's (not shown) line of sight. -
FIG. 7 is a sectional view of themagazine 103 taken along line 7-7 inFIG. 6 . The magazine comprises thefollower 400. Further, theammunition indicator rod 109 slidably runs through thechannel 108 and throughopening 402 of thefollower 400. In one embodiment, epoxy is used to secure the end of theammunition indicator rod 109 through theopening 402 and to thefollower 400. -
FIG. 8 depicts a view looking down thebarrel 113 of the rifle 100 (FIG. 1 ). Therifle 100 comprises thesight 111. When a gunman is aiming his/her gun to shoot at a target, he/she looks through thesight 111 down thebarrel 113. - When the bullet cartridges 601 (
FIG. 6 ) in the magazine 103 (FIG. 3 -FIG. 6 ) are spent, theammunition indicator rod 109 is positioned as shown in proximity to thesight 111. In this regard, the follower 400 (FIG. 6 ) urges theammunition indicator rod 109 upward toward thesight 111 until thebullet cartridges 601 in themagazine 103 are spent. When thebullet cartridges 601 are spent, theammunition indicator rod 109 is positioned in proximity to thesight 111 and in the line of sight of a gunman (not shown). In this regard, the gunman knows when themagazine 103 is almost empty or completely empty without having to turn the rifle 100 (FIG. 1 ) towards him to visually inspect themagazine 103. -
FIG. 9 depicts a view looking down a barrel (not shown) of arifle 901 on which a scope sight 900 has been secured. When a gunman is aiming his/her gun to shoot at a target, he/she looks through the scope sight 900 down the barrel. - When the bullet cartridges 601 (
FIG. 6 ) in the magazine 103 (FIG. 3 -FIG. 6 ) are spent, theammunition indicator rod 109 is positioned as shown in proximity to the scope sight 900. In this regard, the follower 400 (FIG. 6 ) urges theammunition indicator rod 109 upward toward the scope sight 900 until thebullet cartridges 601 in themagazine 103 are spent. When the bullet cartridges are spent, theammunition indicator rod 109 is positioned in proximity to the scope sight 900 in the line of sight of the gunman (not shown). In this regard, the gunman knows when themagazine 103 is almost or completely empty without having to turn the rifle 100 (FIG. 1 ) to visually inspect themagazine 103. - Note that the
ammunition rods 109 depicted inFIG. 8 andFIG. 9 are shown to the right of the sight 111 (FIG. 8 ) and the scope sight 900. The present disclosure also contemplates that theammunition rods 109 may be to the left of thesight 111 and the scope sight 900 in other embodiments.
Claims (24)
1. An ammunition indicator system, comprising
a magazine configured for housing bullet cartridges, the magazine comprising an outward-facing surface and a cavity;
a follower configured to fit within the cavity and to interface with the bullet cartridges inside the cavity, the follower further configured to move in a direction toward an insertion end of the magazine as bullet cartridges from the cavity are spent;
a vertical channel configured in the outward-facing surface of the magazine that extends from the follower to the insertion end of the magazine; and
an ammunition indicator rod configured for slidably coupling to the channel and fixedly coupling to the follower, the ammunition indicator rod further configured for extending above the insertion end of the magazine and above a midsection of a firearm as bullet cartridges are spent and the follower urges the rod in the direction of the midsection of the firearm.
2. The system of claim 1 , wherein the magazine is arch-Shaped.
3. The system of claim 1 , wherein the channel is raised relative to the outward-facing surface of the magazine.
4. The system of claim 1 , wherein the channel is flush with the outward-facing surface of the magazine.
5. The system of claim 1 , wherein the channel is configured to extend from a proximity to an insertion end of the magazine and to terminate at an exposed end of the magazine, the channel at the exposed end forming an opening configured to receive the ammunition indicator rod.
6. The system of claim 1 , wherein the ammunition indicator rod is configured to move in a generally vertical direction toward a barrel of the firearm when a firearm is in a horizontal firing position.
7. The system of claim 6 , wherein the follower is configured to urge the ammunition indicator rod toward the barrel of the firearm as the bullet cartridges are expended from the magazine.
8. The system of claim 1 , wherein the ammunition indicator rod comprises a lighter-colored portion positioned in the channel, the lighter-colored portion is lighter relative to the remainder of the ammunition indicator rod.
9. An ammunition indicator device, comprising:
a magazine configured for housing bullet cartridges and a follower, wherein the follower is configured to move the bullet cartridges in a direction toward a barrel of a rifle as each bullet cartridge is spent;
an ammunition indicator rod coupled to the follower such that as the follower moves the bullet cartridges, the ammunition indicator rod is configured to move in a direction toward a gunman's line of sight.
10. The device of claim 9 , wherein the magazine comprises a channel configured for slidably housing the ammunition indicator rod.
11. The device of claim 10 , wherein the channel is raised relative to an outward-facing surface of the magazine.
12. The device of claim 10 , wherein the channel is flush with an outward-facing surface of the magazine.
13. The device of claim 9 , wherein a channel is configured to begin in proximity to a first end of the magazine and to end at a second end of the magazine, the channel at the second end forming an opening configured to receive the ammunition indicator rod.
14. The device of claim 9 , wherein the ammunition indicator rod is configured to move in a direction toward a line of sight of a gunman when the gunman is looking down the barrel.
15. The device of claim 9 , wherein the magazine is arch-shaped.
16. The device of claim 9 , wherein the ammunition indicator rod comprises a lighter-colored portion positioned in the channel, the lighter-colored portion is lighter relative to the remainder of the ammunition indicator rod and the lighter-colored portion is positioned on the ammunition indicator rod such that the lighter colored portion is visible to the gunman but is not visible to a target when the ammunition indicator rod is in the line of sight of the gunman.
17. An ammunition indicator method, comprising:
housing bullet cartridges and a follower in a magazine;
affixing the magazine to a rifle;
moving the bullet cartridges, by a follower, in a direction toward a barrel of a rifle as each bullet cartridge is spent;
moving the ammunition indicator rod by the follower that is fixedly coupled to the ammunition indicator rod into a line of sight of a gunman looking down a barrel of the rifle.
18. The method of claim 17 , further comprising slidably housing the ammunition indicator rod in a channel.
19. The method of claim 17 , further comprising beginning the channel in proximity to an insertion end of the magazine and ending at an exposed end of the magazine, the channel at the exposed end forming an opening configured to receive the ammunition indicator rod.
20. The method of claim 17 , further comprising moving the ammunition indicator rod in a direction toward a line of sight of a gunman when the gunman is looking down the barrel.
21. The method of claim 17 , wherein the channel is raised relative to an outward-facing surface of the magazine.
22. The method of claim 17 , wherein the channel is flush with an outward-facing surface of the magazine.
23. The method of claim 17 , further comprising:
beginning the channel in proximity to an insertion end of the magazine;
ending the channel at an exposed end of the magazine;
forming at the second end an opening configured to receive the ammunition indicator rod.
24. The method of claim 17 , further comprising moving the ammunition indicator rode in a direction toward a line of sight of a gunman when the gunman is looking down a barrel of the rifle.
Priority Applications (1)
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US15/199,259 US9857131B1 (en) | 2016-06-30 | 2016-06-30 | Ammunition indicator systems, devices, and methods |
Applications Claiming Priority (1)
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US15/199,259 US9857131B1 (en) | 2016-06-30 | 2016-06-30 | Ammunition indicator systems, devices, and methods |
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US9857131B1 US9857131B1 (en) | 2018-01-02 |
US20180003453A1 true US20180003453A1 (en) | 2018-01-04 |
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US15/199,259 Expired - Fee Related US9857131B1 (en) | 2016-06-30 | 2016-06-30 | Ammunition indicator systems, devices, and methods |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US11719497B2 (en) | 2018-10-22 | 2023-08-08 | Magpul Industries Corp. | Determination of round count by hall switch encoding |
US11971238B2 (en) | 2018-10-22 | 2024-04-30 | Magpul Industries Corp. | Determination of round count by hall switch encoding |
WO2020086598A1 (en) | 2018-10-22 | 2020-04-30 | Magpul Industries Corp. | Determination of round count by hall switch encoding |
US10760864B1 (en) * | 2019-04-09 | 2020-09-01 | The United States Of America As Represented By The Secretary Of The Army | Magazine assembly providing tactile indication of ammunition level |
Family Cites Families (19)
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US2828568A (en) * | 1955-06-17 | 1958-04-01 | Edwin G Sakewitz | Cartridge indicating magazine for automatic pistols and other firearms |
US4109401A (en) * | 1977-08-22 | 1978-08-29 | Daniel Dennis Musgrave | Magazine contents indicators |
US4586281A (en) * | 1985-03-08 | 1986-05-06 | Chesnut M Gaines | Cartridge magazine for use with a plurality of firearms |
US5052138A (en) | 1989-12-01 | 1991-10-01 | Philip Crain | Ammunition supply indicating system |
US5206444A (en) * | 1990-11-16 | 1993-04-27 | Oliver Harry M | Device that displays count of rounds in firearm magazines |
US5291679A (en) | 1992-06-15 | 1994-03-08 | E. M. Kelman | Magazine with indicator |
US6094850A (en) * | 1994-06-27 | 2000-08-01 | Villani; Michael J. | Automatic cartridge monitoring and indicator system for a firearm |
US5826360A (en) | 1995-12-20 | 1998-10-27 | Herold; Michael A. | Magazine for a firearm including a self-contained ammunition counting and indicating system |
US5642581A (en) | 1995-12-20 | 1997-07-01 | Herold; Michael A. | Magazine for a firearm including a self-contained ammunition counting and display system |
US5735070A (en) | 1996-03-21 | 1998-04-07 | Vasquez; Eduardo C. | Illuminated gun sight and low ammunition warning assembly for firearms |
US5799432A (en) | 1997-02-12 | 1998-09-01 | Barry M. Wright, Sr. | Self-contained magazine and weapon system incorporating same |
US7661217B2 (en) | 2006-11-15 | 2010-02-16 | Dov Pikielny | Shot counter |
IL188379A0 (en) | 2007-04-30 | 2008-11-03 | Ori Gur Ari | Magazine with ammunition status indicator |
EP2167899A2 (en) * | 2007-06-13 | 2010-03-31 | Ray Kim | System and methods for tracking ammunition supply in a magazine |
US8191297B2 (en) | 2009-08-04 | 2012-06-05 | Gwillim Jr Reese C | Device for indicating low ammunition in a firearm magazine |
US20110078936A1 (en) * | 2009-10-07 | 2011-04-07 | Gates Craig D | Firearm Magazine Indicator |
WO2012005829A1 (en) | 2010-05-28 | 2012-01-12 | Ted Hatfield | Magazine assembly for a firearm |
US8713835B1 (en) * | 2013-06-14 | 2014-05-06 | CRMAG Associates | Capacity reducible magazine |
FR3018605B1 (en) * | 2014-03-11 | 2017-09-01 | Commissariat Energie Atomique | DEVICE FOR INDICATING THE FILLING LEVEL OF A CONTAINER |
-
2016
- 2016-06-30 US US15/199,259 patent/US9857131B1/en not_active Expired - Fee Related
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