Shot-counting device for a firearm
US8046946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Sep 27, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A19/01
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for counting shots fired by a firearm including a permanent magnet mounted to moving portion of the firearm and electrically coupled to a coil mounted on a relatively stationary portion of the firearm. Movement of the magnet relative to the coil induces an electromotive force within the coil. The induced electromotive force can be used increment a shot-count indictor and thereby record the number of shots fired by the firearm. The electromotive force can also be measured by a verification circuit to determine the strength of a shot and thereby verify whether a round was actually discharged by the firearm. In some embodiments, information regarding the number of shots discharged and the strength of the shots can be transmitted to an external device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.