The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1995
Filed:
Jul. 29, 1994
Cotter W Sayre, Canoga Park, CA (US);
Other;
Abstract
A method and apparatus for counting the rounds expended from a firearm. When a non sound-suppressed firearm is discharged, two things occur: A strong sound wave is produced due to the quick expansion of the gases produced by the ignition of the powder in the case; and a rearward motion of the firearm occurs, usually referred to as recoil, due to the projectile moving in the forward direction, as Newton's law states. The integration of both recoil and sound transducers guarantees that in order for the device to increment or decrement both the recoil and the gunshot must occur in the same time frame, thus guaranteeing an accurate count with an easy to install and compact device comprised of an acoustic and dynamic switch, whose outputs are fed into the input of a NAND gate, with the output of the NAND gate fed into a digital counter, then fed into a decoder/driver for output into the output display. The device is able to be reset just before or just after reloading of the firearm by the push of a button.