Direct gas impingement system

• US 10,386,140 B2
• Filed: 06/11/2018
• Issued: 08/20/2019
• Est. Priority Date: 06/12/2017
• Status: Active Grant

• Current Assignee: Lawrence S. Kramer
• Original Assignee: Kramer Cartridge & Carbine, LLC
• Inventors: Kramer, Lawrence S.
• Primary Examiner(s): Clement, Michelle
• Application Number:
  US16/005,381
• Publication Number:
  US 20180372435A1
• Time in Patent Office: 435 Days
• Field of Search: 89193
• CPC Class Codes: F41A 3/12 Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
• CPC Class Codes: F41A 3/66 Breech housings or frames; Receivers
• CPC Class Codes: F41A 5/26 Arrangements or systems for bleeding the gas from the barrel F41A5/20 - F41A5/24 take precedence

Abstract

Implementations described herein generally relate to gas operating systems including direct gas impingement systems for a weapon system, such as the AR15, M16, and M4 weapon systems. The gas operating system includes a gas channel carrier rail and a bolt carrier group. The gas channel carrier rail contains a main gas channel disposed between an inlet end an outlet end, where the outlet end is flared to have a larger diameter than the inlet end. A slot is formed in the outlet end and extends along the main gas channel. The bolt carrier group contains a carrier assembly, a bolt assembly, and a gas channel carrier guide, where the bolt assembly is at least partially contained within the carrier assembly. The gas channel carrier guide is disposed on the carrier assembly, extends through the slot, and is at least partially disposed into the gas channel carrier rail.

Claims

1. A gas operating system for a weapon system comprising an upper receiver and a gas block, the gas operating system comprising:

a gas channel carrier rail comprising a main gas channel disposed between an inlet end an outlet end of the gas channel carrier rail, wherein the outlet end is flared to have a larger diameter than the inlet end, and wherein the gas channel carrier rail is configured to be installed into the upper receiver, extended through a wall of the upper receiver, and attached to the gas block;

a slot formed in the outlet end and extending along the main gas channel; and

a bolt carrier group comprising a carrier assembly, a bolt assembly, and a gas channel carrier guide, wherein the bolt assembly is at least partially contained within the carrier assembly, wherein the gas channel carrier guide is disposed on the carrier assembly, and wherein the gas channel carrier guide extends through the slot and is at least partially disposed into the gas channel carrier rail.

2. The gas operating system of claim 1, wherein the gas channel carrier guide comprises a secondary gas channel passing therethrough, and wherein the secondary gas channel is disposed between and in fluid communication with the main gas channel and an interior of the bolt carrier group.

3. The gas operating system of claim 2, wherein the gas channel carrier guide comprises an upper segment and a lower segment, wherein the upper segment extends through the slot and is at least partially disposed into the gas channel carrier rail, and wherein the lower segment is coupled to the carrier assembly.

4. The gas operating system of claim 3, wherein the gas channel carrier guide comprises an inlet port in fluid communication with the main gas channel, and wherein the secondary gas channel extends from the inlet port to the interior of the bolt carrier group.

5. The gas operating system of claim 1, wherein the gas channel carrier guide comprises two or more gas seals disposed on an outer surface of the gas channel carrier guide.

6. The gas operating system of claim 5, wherein the two or more gas seals are disposed between and in contact with the gas channel carrier guide and the gas channel carrier rail.

7. The gas operating system of claim 5, wherein the gas channel carrier guide comprises an inlet port in fluid communication with the main gas channel, and wherein the inlet port is disposed between the two gas seals.

8. The gas operating system of claim 7, wherein the inlet port is disposed on an upper surface of the gas channel carrier guide.

9. The gas operating system of claim 1, wherein the outlet end of the gas channel carrier rail comprises a baffle within the main gas channel.

10. The gas operating system of claim 1, further comprising a gas chamber disposed in the bolt carrier group, wherein the gas chamber is in fluid communication with the main gas channel via a secondary gas channel disposed in the gas channel carrier guide.

11. The gas operating system of claim 10, further comprising the gas chamber is formed between the carrier assembly, the bolt assembly, and two gas seals therebetween.

12. The gas operating system of claim 11, wherein the two gas seals comprise a first gas seal and a second gas seal, the first gas seal is contained on a gas collar disposed on the bolt assembly, and the second gas seal is contained on a bolt tail disposed on the bolt assembly.

13. The gas operating system of claim 1, wherein the carrier assembly further comprises a carrier body, and wherein the gas channel carrier guide and the carrier body are monolithic.

14. The gas operating system of claim 1, wherein the inlet end of the gas channel carrier rail is configured to couple to a gas block disposed on a barrel of the weapon system.

15. The gas operating system of claim 1, further comprising a charging handle disposed around at least a portion of the outlet end of the gas channel carrier rail and makes contact to a surface on the carrier assembly.

16. The gas operating system of claim 1, wherein the gas channel carrier rail extends through an adjustable tensioner that is attached to an upper receiver of the weapon system.

17. The gas operating system of claim 16, wherein the adjustable tensioner is a collet, a grommet, a chuck, or a tensioning collar.

25. The gas operating system of claim 1, wherein the gas channel carrier rail is a monolithic piece.

18. A gas operating system for a weapon system comprising an upper receiver and a gas block, the gas operating system comprising:

a gas channel carrier rail comprising a main gas channel disposed between an inlet end an outlet end of the gas channel carrier rail, wherein the outlet end comprises a slot extending along the main gas channel, and wherein the gas channel carrier rail is configured to be installed into the upper receiver, extended through a wall of the upper receiver, and attached to the gas block;

a bolt carrier group comprising a carrier assembly, a bolt assembly, and a gas channel carrier guide, wherein the bolt assembly is at least partially contained within the carrier assembly, wherein the gas channel carrier guide is disposed on the carrier assembly, extends through the slot, and is at least partially disposed into the gas channel carrier rail, and wherein the gas channel carrier guide comprises a secondary gas channel extending therethrough; and

a gas chamber disposed in the bolt carrier group, wherein the gas chamber is in fluid communication with the main gas channel via the secondary gas channel, and wherein the gas chamber is formed between the carrier assembly, the bolt assembly, and two gas seals.

19. The gas operating system of claim 18, wherein the two gas seals comprise a first gas seal and a second gas seal, the first gas seal is contained on a gas collar disposed on a bolt body of the bolt assembly, and the second gas seal is contained on a bolt tail disposed on the bolt assembly, wherein the diameter of the bolt tail is smaller than the diameter of the bolt body and the bolt tail is axially aligned with the bolt body.

20. The gas operating system of claim 18, wherein the outlet end of the gas channel carrier rail is flared to have a larger diameter than the inlet end of the gas channel carrier rail.

21. The gas operating system of claim 18, wherein the gas channel carrier guide comprises an upper segment and a lower segment, wherein the upper segment extends through the slot and is at least partially disposed into the gas channel carrier rail, and wherein the lower segment is coupled to the carrier assembly.

22. The gas operating system of claim 21, wherein the gas channel carrier guide comprises an inlet port in fluid communication with the main gas channel, and wherein the secondary gas channel extends from the inlet port to the interior of the bolt carrier group.

26. The gas operating system of claim 18, wherein the gas channel carrier rail is a monolithic piece.

23. An upper receiver assembly for a weapon system, comprising:

an upper receiver comprising a barrel;

a gas block fluidly coupled to the barrel;

a gas operating system fluidly coupled to the gas block, wherein the gas operating system comprises;

a gas channel carrier rail comprising a main gas channel disposed between an inlet end an outlet end of the gas channel carrier rail, wherein the outlet end comprises a slot extending along the main gas channel, and wherein the gas channel carrier rail is disposed in the upper receiver, extended through a wall of the upper receiver, and attached to the gas block;

a bolt carrier group comprising a carrier assembly, a bolt assembly, and a gas channel carrier guide, wherein the bolt assembly is at least partially contained within the carrier assembly, wherein the gas channel carrier guide is disposed on the carrier assembly, extends through the slot, and is at least partially disposed into the gas channel carrier rail, and wherein the gas channel carrier guide comprises a secondary gas channel extending therethrough; and

a gas chamber disposed in the bolt carrier group, wherein the gas chamber is in fluid communication with the main gas channel via the secondary gas channel, and wherein the gas chamber is formed between the carrier assembly, the bolt assembly, and two gas seals.

24. The upper receiver assembly of claim 23, wherein the gas channel carrier rail is a monolithic piece.