Cartridge monitoring and display system for a firearm

Details Cartridge monitoring and display system for a firearm Cartridge monitoring and display system for a firearm

1991-03-04

1992-09-01

Bentley, Stephen C.

Firearms

Indicators

Magazine shot

F41A 962

Patent

active

051428059

ABSTRACT:
A cartridge monitoring and display system for an automatic or semiautomatic firearm. A programmed microcontroller receives input signals from each of a slide switch and a magazine switch, which switches generate respective signals upon actuation of the firearm slide and upon insertion or withdrawal of a cartridge magazine. The microcontroller calculates the number of rounds remaining in the firearm and displays the number on an LCD display. A visible and audible warning is given when the cartridge count drops below a predetermined minimum level. The entire system is incorporated in a mounting strap which may be inserted between the frame and hand grip of a conventional semiautomatic pistol.

REFERENCES:
patent: 3552053 (1971-01-01), Jarvis
patent: 4541191 (1985-09-01), Morris et al.
patent: 5005307 (1991-04-01), Horne et al.
patent: 5052138 (1991-10-01), Crain

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