Firearm configuration for reducing recoil

• US 10,267,581 B2
• Filed: 09/13/2018
• Issued: 04/23/2019
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: Daniel Defense LLC
• Original Assignee: 5794 Corporation
• Inventors: Hangen, William A.
• Primary Examiner(s): Klein, Gabriel J.
• Application Number:
  US16/130,044
• Publication Number:
  US 20190011203A1
• Time in Patent Office: 222 Days
• CPC Class Codes: F41A 19/10 Triggers; Trigger mountings
• CPC Class Codes: F41A 19/11 Trigger guards; Trigger-guard mountings F41A19/15 takes precedence
• CPC Class Codes: F41A 25/12 using coil springs
• CPC Class Codes: F41A 3/56 the bolt being provided with an additional slidable mass
• CPC Class Codes: F41A 3/86 mounted under or above the barrel
• CPC Class Codes: F41A 5/10 having a movable inertia weight , e.g. for storing energy
• CPC Class Codes: F41A 5/12 mounted in a gun having a fixed barrel
• CPC Class Codes: F41A 9/64 for unbelted ammunition
• CPC Class Codes: F41C 23/06 Stocks or firearm frames specially adapted for recoil reduction

Abstract

Disclosed is a firearm configuration for a handgun. The firearm configuration is designed to reduce the recoil forces encountered by a user upon firing the weapon. It further includes a recoil plate that absorbs forces generated by the slide during firing. Recoil forces are reduced by lowering the firearm'"'"'s center of mass and by aligning a recoiling mass with the user'"'"'s arm and trigger finger. The firearm configuration further includes a locking block which prevents rotational and lateral movement of the barrel upon firing.

Claims

1. An open bolt firearm comprising:

upper and lower housings slidably interconnected to one another, each housing having a forward extent and a rearward extent;

a grip forming part of the rearward extent of the lower housing, a barrel with a chamber, an open ejection port formed within the upper housing;

a trigger and trigger housing positioned between the forward and rearward extent of the lower housing;

a barrel positioned within the forward extent of the upper housing;

a firing pin positioned upon a forward surface of the rearward extent of the upper housing;

a guide rod positioned within the forward extent of the lower housing, the guide rod being substantially aligned with a user'"'"'s trigger finger when the grip is held by the user in a read-to-fire position;

a recoil mass being slidably positioned along the guide rod, a spring positioned between the recoil mass and the trigger housing;

whereby when the user pulls the trigger a round is chambered and the firing pin moves forward to engage a primer of the round and fire the firearm, and whereby recoil forces are reduced as the recoil mass slides toward the rearward end of the firearm and against the tension of the spring.

2. The open bolt firearm as described in claim 1 further comprising a trigger bar with a sear manipulated by the trigger, the sear selectively engaging and disengaging the rearward extent of the upper housing, whereby pulling the trigger disengages the sear to permit the upper housing to slide to the forward end of the firearm.

3. The open bolt firearm as described in claim 1 further comprising a barrel with a chamber, and an open ejection port formed within the upper housing;

a magazine formed within the grip for delivering rounds to be fired into the chamber.

4. The open bolt firearm as described in claim 1 wherein the firing pin is fixed.

5. The open bolt firearm as described in claim 1 wherein the recoil mass includes an internal aperture and wherein one end of the spring is seated upon a rear surface of the recoil mass.

6. An open bolt firearm adapted to be fired by the trigger finger of a user, the firearm having forward and rearward ends, the firearm configured to reduce the amount of recoil felt by the user during firing, the firearm comprising:

upper and lower housings slidably interconnected to one another, each housing having a forward extent and a rearward extent, the upper housing sliding to the forward end of the firearm upon firing;

a grip and magazine forming part of the rearward extent of the lower housing, the magazine housing a number of rounds, each round including a primer, a barrel with a chamber, an open ejection port formed within the upper housing, the magazine delivering rounds to be fired into the chamber;

a trigger and trigger housing positioned between the forward and rearward extent of the lower housing, the trigger manipulating to a trigger bar with a sear, the sear selectively engaging and disengaging the rearward extent of the upper housing, whereby pulling the trigger disengages the sear to permit the upper housing to slide forward, whereby a round is chambered and firearm is fired;

a barrel positioned within the forward extent of the upper housing, the barrel adapted to receive a round in its chamber;

a fixed firing pin positioned upon a forward surface of the rearward extent of the upper housing, the fixed firing pin adapted to impact the primer of a chambered round as the firearm is fired;

a guide rod positioned within the forward extent of the lower housing, the guide rod being substantially aligned with the user'"'"'s trigger finger when the grip is held by the user in a read-to-fire position;

a recoil mass formed as part of the forward extent of the upper housing, the recoil mass being slidably positioned along the guide rod, a spring positioned between the recoil mass and the trigger housing, the spring biasing the recoil mass to the forward end of the firearm;

whereby when the user pulls the trigger a round is chambered and the fixed firing pins moves forward to engage the primer and fire the firearm, and whereby recoil forces are reduced as the recoil mass slides toward the rearward end of the firearm and against the tension of the spring.