초록

A mechanism for determining the presence of a round of ammunition within a firearm by measuring the resistance across the round upon passing a test current through electrodes positioned to contact ammunition, and optionally means for determining the viability of the ammunition.

대표청구항 ▼

[ We claim:] [1.] In a firearm comprising a barrel attached to a receiver, a chamber formed in the barrel adjacent to the receiver, the receiver being adapted to receive at least one round of ammunition, means for conveying the ammunition from the receiver into the chamber, a trigger assembly and a

[ We claim:] [1.] In a firearm comprising a barrel attached to a receiver, a chamber formed in the barrel adjacent to the receiver, the receiver being adapted to receive at least one round of ammunition, means for conveying the ammunition from the receiver into the chamber, a trigger assembly and a firing mechanism, the improvement comprising a mechanism for determining the presence of a round of ammunition within the firearm, the mechanism comprising at least one pair of electrodes positioned to contact electrically conductive portions of a round of ammunition within the firearm; means for supplying a predetermined current to at least one of the electrodes; means for measuring the resistance between the electrodes, and means for comparing the measured resistance with at least one reference.