May 6, 2025

US12292248 - Biometric firearm chamber lock

The biometric firearm chamber lock is a biometric electro-mechanical locking system integrated firearm safety device. The device safely locks firearms by securing the firearm lock into the firearm chamber through the ejection port to prevent rounds from being fired. An electrical biometric sensor quickly unlocks the firearm lock from the firearm. A mechanical backup unlock mechanism is used if a replacement battery is unavailable or if the electrical components fail and cannot be used to unlock the firearm lock. The firearm lock is an independent structure requiring no installation process.

Assignee: CASTLELOCK CORPORATION
Inventors: Shaun Tanaka, Thomas J. Mackin, Ricardo Tan
Filing date: 2024-11-13

firearmsafetybiometriclock

The biometric firearm chamber lock is an electro-mechanical safety device designed to secure firearms by locking the chamber through the ejection port, preventing the firing of rounds. It features a biometric sensor for quick unlocking, along with a mechanical backup system for emergencies, and requires no installation as it operates independently.

Claim 1

A firearm lock for a firearm having a chamber, comprising: a plunge having a retractable locking portion with shape corresponding to the firearm; a plunge return spring coupled to the plunge; a plunge interlock coupled to the plunge; a chamber insert having a rear chamber lock, the chamber insert at least partially surrounding the plunge and the plunge return spring; a deadbolt coupled to the plunge interlock; an unlocking motor having a control board, the unlocking motor coupled to the deadbolt; a biometric sensor coupled to the unlocking motor for detecting a physical characteristic of an authorized user; a power supply for providing electrical power to the control board and the unlocking motor; and a housing coupled to the chamber insert, wherein the housing surrounds the control board, the power supply, and the unlocking motor. a plunge having a retractable locking portion with shape corresponding to the firearm; a plunge return spring coupled to the plunge; a plunge interlock coupled to the plunge; a chamber insert having a rear chamber lock, the chamber insert at least partially surrounding the plunge and the plunge return spring; a deadbolt coupled to the plunge interlock; an unlocking motor having a control board, the unlocking motor coupled to the deadbolt; a biometric sensor coupled to the unlocking motor for detecting a physical characteristic of an authorized user; a power supply for providing electrical power to the control board and the unlocking motor; and a housing coupled to the chamber insert, wherein the housing surrounds the control board, the power supply, and the unlocking motor.

Google Patents

https://patents.google.com/patent/US12292248

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12292248