DEVICE FOR INDICATING LOW AMMUNITION IN A FIREARM MAGAZINE
First Claim
1. A device for indicating when a firearm magazine has a limited amount of remaining ammunition, the device comprising:
- a switch within a magazine for a firearm, mounted to a plate at a bottom end of the magazine and cooperating with a segment of a magazine spring; and
an indicating terminal coupled with the switch such that a change in a state of the switch activates and deactivates the indicating terminal;
wherein the “
on” and
“
off”
states of the switch correspond to differing positions of the segment of the spring relative to the switch and attendant differing amounts of ammunition in the magazine.
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Accused Products
Abstract
A device for indicating a limited amount of remaining ammunition in a firearm magazine is disclosed. A switch is mounted within the magazine, to a plate at a bottom end of the magazine. The plate may be a magazine insert, a floor plate, a base plate or a base pad. The switch cooperates with or responds to a segment or portion of a magazine spring. An indicating terminal is coupled with the switch. A change in state of the switch activates and deactivates the indicating terminal. The indicating terminal may be electrically connected to an indicating device. The indicating device may be an LED, an incandescent bulb or a light. The “on” and “off” states of the switch correspond to differing positions of the segment of the spring relative to the switch or to the plate and attendant differing amounts of ammunition in the magazine.
45 Citations
20 Claims
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1. A device for indicating when a firearm magazine has a limited amount of remaining ammunition, the device comprising:
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a switch within a magazine for a firearm, mounted to a plate at a bottom end of the magazine and cooperating with a segment of a magazine spring; and an indicating terminal coupled with the switch such that a change in a state of the switch activates and deactivates the indicating terminal; wherein the “
on” and
“
off”
states of the switch correspond to differing positions of the segment of the spring relative to the switch and attendant differing amounts of ammunition in the magazine. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for indicating low ammunition in a firearm magazine, comprising:
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a switch internal to a firearm magazine, attached to a magazine insert or a floor plate and situated so as to be responsive to a portion of a magazine spring; and an indicating device in electrical connection with the switch; wherein a position of the portion of the spring varies in response to a varied remaining amount of rounds in the magazine due to compression and extension of the spring; and wherein the switch directs activation of the indicating device in response to a range of positions of the portion of the spring corresponding to the remaining amount of rounds being less than or equal to a predetermined low ammunition count thereby detecting and indicating low ammunition. - View Dependent Claims (9, 10, 11, 12)
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13. A firearm magazine, comprising:
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a magazine case, a plate, a magazine spring and a follower; a switch secured to the plate and responsive to a portion of the magazine spring and to a spacing from the portion of the spring to the plate; a light secured to the plate, responsive to the switch and visible external to the magazine; and a battery contact secured to the plate for selectably powering the light; wherein the switch directs available power from the battery contact to illuminate the light for the spacing from the portion of the spring to the plate being greater than or equal to a specified trip point distance, thereby detecting and indicating a low ammunition condition. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification