Striker system for firearms

• US 10,077,961 B2
• Filed: 01/03/2017
• Issued: 09/18/2018
• Est. Priority Date: 01/03/2017
• Status: Active Grant

• Current Assignee: STI Firearms, LLC
• Original Assignee: STI Firearms, LLC
• Inventors: Carr, Jesse
• Primary Examiner(s): Hayes, Bret
• Application Number:
  US15/397,066
• Publication Number:
  US 20180187994A1
• Time in Patent Office: 623 Days
• Field of Search: 42 6902, 42 6903
• CPC Class Codes: F41A 19/30 in bolt-action guns
• CPC Class Codes: F41A 19/31 Sear arrangements therefor F41A19/33 takes precedence
• CPC Class Codes: F41A 19/32 for catching the percussion or firing pin after each shot, i.e. in single-shot or semi-automatic firing mode
• CPC Class Codes: F41A 19/34 Cocking mechanisms

Abstract

A firearm firing system that includes a striker assembly and a fire control assembly. The striker assembly includes a striker housing, a striker disposed within the striker housing, and a sear bar coupled to the striker housing. The sear bar is configured to engage a sear engagement surface of the striker through an opening in the striker housing. The fire control assembly includes a cocking block and a transfer lever. The cocking block is configured to engage with and pivot the sear bar. The transfer lever is configured to transfer force from a trigger to the cocking block.

Claims

1. A firearm firing system comprising:

a striker assembly comprising;

a striker housing,

a striker disposed within the striker housing, and

a sear bar coupled to the striker housing and positioned to engage a sear engagement surface of the striker through an opening in the striker housing; and

a fire control assembly comprising;

a cocking block configured to engage with and pivot the sear bar, and

a transfer lever configured to transfer force from a trigger to the cocking block.

2. The firing system of claim 1, wherein the striker housing is configured to be installed within a firearm slide.

3. The firing system of claim 1, wherein the fire control assembly is configured to be installed within a firearm frame.

4. The firing system of claim 1, wherein the sear bar comprises a sear at a first end of the sear bar, the sear being configured to engage the sear engagement surface of the striker, and wherein the cocking block engages the sear bar at a second end opposite the first end.

5. The firing system of claim 1, wherein the fire control assembly comprises a fire control housing with the cocking block and the transfer lever disposed therein.

6. The firing system of claim 5, wherein the cocking block comprises posts that engage with corresponding channels in inside surfaces of the fire control housing such that cocking block is free to pivot and slide fore and aft within the channels.

7. The firing system of claim 1, wherein the sear bar comprises a sear at a first end of the sear bar, the sear being configured to engage the sear engagement surface of the striker,

wherein the cocking block engages the sear bar at a second end of the sear bar, opposite the first end, and

wherein the transfer lever is configured to be pivotally coupled inside a firearm frame such that a force applied from a trigger of the firearm to a first end of the transfer lever causes the transfer lever to pivot such that a second, opposite end of the transfer lever engages the cocking block, thereby, pivoting the cocking block and causing the cocking block to pivot the second end of the sear bar upwards and the first end of the sear bar downwards to disengage the sear from the striker.

8. The firing system of claim 1, wherein the cocking block comprises a cocking tab that is configured to engage a back surface of the striker housing to retain the striker housing stationary during a rearward movement of a firearm slide, thereby, cocking the striker.

9. The firing system of claim 8, wherein the cocking tab is integral to the cocking block.

10. The firing system of claim 8, wherein the cocking tab is housed within a channel in the cocking block and configured to slide within the channel.

11. The firing system of claim 8, wherein the cocking block comprises a lug at an end of the cocking block opposite the cocking tab, the lug being configured to engage a cam surface of a firearm slide.

12. A firearm comprising:

a frame;

a slide installed on the frame;

a striker housing installed within the slide;

a striker disposed within the striker housing;

a sear bar coupled to the striker housing; and

a fire control assembly installed within the frame, the fire control assembly comprising;

a cocking block configured to engage with and pivot the sear bar, and

a transfer lever configured to transfer force from a trigger to the cocking block to pivot the sear bar and, thereby, disengage the sear bar from a sear engagement surface of the striker.

13. The firearm of claim 12, wherein the sear bar comprises a sear at a first end of the sear bar, the sear being configured to engage the sear engagement surface of the striker,

wherein the cocking block engages the sear bar at a second end of the sear bar, opposite the first end, and

wherein the transfer lever is pivotally coupled inside the frame such that a force applied from a trigger of the firearm to a first end of the transfer lever causes the transfer lever to pivot such that a second, opposite end of the transfer lever engages the cocking block, thereby, pivoting the cocking block and causing the cocking block to pivot the second end of the sear bar upwards and the first end of the sear bar downwards to disengage the sear from the striker.

14. The firearm of claim 12, wherein the fire control assembly comprises a fire control housing with the cocking block and the transfer lever disposed therein.

15. The firearm of claim 14, wherein the cocking block comprises posts that engage with corresponding channels in inside surfaces of the fire control housing such that cocking block is free to pivot and slide fore and aft within the channels.

16. The firearm of claim 12, wherein the cocking block comprises a cocking tab that is configured to engage a back surface of the striker housing to retain the striker housing stationary during a rearward movement of a firearm slide, thereby, cocking the striker.

17. The firearm of claim 16, wherein the cocking tab is integral to the cocking block.

18. The firearm of claim 16, wherein the cocking tab is housed within a channel in the cocking block and configured to slide within the channel.

19. The firearm of claim 16, wherein the cocking block comprises a lug at an end of the cocking block opposite the cocking tab, the lug being configured to engage a cam surface of a firearm slide.

20. The firearm of claim 12, wherein the sear bar is configured to engage the sear engagement surface of the striker through an opening in the striker housing.