Dynamic variable force trigger mechanism for firearms

US10458736B2 · kind B2 · utility

Assignee

• Sturm, Ruger & Company, Inc. · US

Inventors

• Louis M. Galie · Leander, US
• Rob Gilliom · Conway, US
• John Klebes · Feeding Hills, US
• John M. French · Meridian, US
• Gary Hamilton · South Windsor, US
• Rafal Slezok · Newington, US

Key dates

• Filing date: Feb 22, 2019
• Grant date: Oct 29, 2019
• Expiry date: Feb 22, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F41A19/59
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A magnetically variable firing system for a firearm includes a trigger mechanism allowing a user to selectively adjust the trigger pull force-displacement profile by changing the static magnetic field in the mechanism. In a closed magnetic loop configuration, the trigger mechanism includes a stationary yoke and pivotably movable trigger member. The trigger member includes a trigger portion and working portion operably interfaced with the firing mechanism of the firearm for discharging the firearm. An openable first air gap formed between the trigger member and yoke is maintained in a closed position via magnetic attraction therebetween absent a trigger pull. A control insert movable relative to a second control air gap in the yoke allows adjustment of the static magnetic field to alter the trigger pull force required to actuate the trigger mechanism. Other embodiments provide open magnetic loop trigger mechanism designs adjustable to magnetically vary the trigger pull force.