Firearm with enhanced recoil and control characteristics
View Patent ↗The invention comprises an improved recoil control device comprising a bolt head and an inertia block or slider for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in a force component outside the firing axis of the barrel of the firearm. The device can be incorporated into firearms of a variety of sizes and configurations to produce recoil reduction and/or weight reduction advantages.
1. A semiautomatic or automatic firearm comprising:
a bolt head configured to alternate between a forward position and a rearward position in response to the firing of one or more cartridges, wherein a component of the bolt head movement is along an axis transverse to the firing axis of the barrel of the firearm; and
a slider comprising an initial or first sloped surface and a second sloped surface to contact the bolt head or a linkage to the bolt head; and a slider path along which the slider moves;
wherein an angle α is formed between the first sloped surface of the slider and the slider path and the angle α is between about 6 degrees and about 45 degrees;
wherein the bolt head is configured to transmit an impulse to the slider as the bolt head alternates between the forward position and the rearward position, the impulse having a component perpendicular to the firing axis of the barrel of the firearm.
2. The firearm of claim 1 , further comprising a handgrip located behind the barrel of the firearm, whereby the upward jerking of the firearm from the firing of one or more cartridges is substantially eliminated.
3. The firearm of claim 2 , wherein the axis of the gun barrel intersects the handgrip between about 5% to about 90% of the height from the top of the handgrip.
4. The firearm of claim 1 , further comprising a stock located behind the barrel of the firearm.
5. The firearm of claim 4 , wherein the axis of the gun barrel intersects the stock between about 5% to about 90% of the height from the top.
6. The firearm of claim 1 , wherein the firearm is designed for .45 caliber ammunition and wherein the bolt head mass is approximately 50 to 70 grams.
7. The firearm of claim 1 , wherein the ratio of slider mass to bolt head mass is approximately 2 to about 4.
8. The firearm of claim 1 , wherein the ratio of slider mass to bolt head mass is approximately 2.5 to about 3.
9. The firearm of claim 1 , wherein the firearm is designed for 7.62 NATO ammunition.
10. The firearm of claim 1 , wherein the firearm is designed for .45 caliber ammunition.
11. The firearm of claim 1 , wherein the angle α is between about 24 degrees and about 36 degrees.
12. The firearm of claim 1 , wherein the angle α is between about 20 degrees and about 45 degrees.
13. The firearm of claim 1 , wherein the angle α is between about 30 degrees and about 36 degrees.
14. The firearm of claim 1 , wherein the configuration of the bolt head and the slider is set so that the impulse transmitted from the bolt head to the slider has a margin of play in a longitudinal component of the impulse.
15. The firearm of claim 1 , wherein the slider is housed in a handgrip.
16. The firearm of claim 1 , further comprising a muzzle brake.
17. A recoil control device for use in a firearm, said device comprising:
a bolt head configured to alternate between a forward position and a rearward position in response to the firing of one or more cartridges; a slider connected to the bolt head, the slider comprising an initial or first sloped surface and a second sloped surface to contact the bolt head or the linkage to the bolt head; and a slider path along which the slider moves;
wherein an angle α is formed between the initial sloped surface of the slider and the slider path and the angle α is between about 6 degrees and about 45 degrees;
wherein the bolt head is configured to transmit an impulse to the slider as the bolt head alternates between the forward position and the rearward position, the impulse having a component perpendicular to the firing axis of the barrel of the firearm, and wherein the contact to or linkage of the slider to the bolt head comprises a transverse spindle perpendicular to the axis of the gun barrel, the spindle arranged to slide between the first sloped surface of the slider, which the bolt head or linkage contacts at a forward position, and the second sloped surface of the slider, which the bolt head or linkage contacts at a rearward position.
18. The recoil control device of claim 17 , wherein the transverse spindle linking the bolt head and the slider is set to have a margin of play in the longitudinal sense.
19. The recoil control device of claim 17 , wherein the slider comprising an initial or first sloped surface and a second sloped surface contains no other sloped surfaces to contact the bolt head or the linkage to the bolt head.
20. The recoil control device of claim 17 , wherein the angle α is between about 24 degrees and about 36 degrees.
21. The recoil device of claim 17 , wherein the slider path or guide is straight.
22. The recoil control device of claim 21 , wherein the angle α is between about 30 degrees and about 36 degrees.
23. The recoil control device of claim 21 , wherein the angle formed by the axis formed by the longitudinal axis of the barrel of the firearm and the axis formed by the slider guide is between about 6 degrees and about 40 degrees.
24. The recoil control device of claim 23 , wherein the angle is between about 24 degrees and about 36 degrees.
25. The recoil control device of claim 21 , wherein the firearm is designed for .45 caliber ammunition.
26. The recoil control device of claim 21 , wherein the firearm is designed for 7.62 NATO ammunition.
27. The recoil control device of claim 21 , wherein the slider path forms an angle between about 5 degrees and about 45 degrees with the longitudinal axis of the barrel.
28. The recoil control device of claim 21 , wherein the slider path forms an angle between about 30 degrees and about 43 degrees with the longitudinal axis of the barrel.
29. The recoil control device of claim 17 , wherein the firearm is designed for .45 caliber ammunition.
30. The recoil control device of claim 17 , wherein the firearm is designed for 7.62 NATO ammunition.
31. A recoil control device for use in a firearm, said device comprising:
a bolt head configured to alternate between a forward position and a rearward position in response to the firing of one or more cartridges, wherein a component of the bolt head movement is along an axis transverse to the firing axis of the barrel of the firearm; a slider connected to the bolt head, the slider comprising an initial or first sloped surface and a second sloped surface to contact the bolt head or the linkage to the bolt head; and a slider path along which the slider moves;
wherein an angle α is formed between the initial sloped surface of the slider and the slider path and the angle α is between about 6 degrees and about 45 degrees;
wherein the bolt head is configured to transmit an impulse to the slider as the bolt head alternates between the forward position and the rearward position, the impulse having a component perpendicular to the firing axis of the barrel of the firearm.
32. The recoil control device of claim 31 , wherein the angle α is between about 24 degrees and about 36 degrees.
33. The recoil control device of claim 32 , wherein the slider is housed in a handgrip of a firearm.
34. The recoil control device of claim 31 , wherein the slider path is straight.
35. The recoil control device of claim 34 , wherein the angle α is between about 30 degrees and about 36 degrees.
36. The recoil control device of claim 35 , wherein the slider is housed in a handgrip of a firearm.
37. The recoil control device of claim 34 , wherein the angle α is between about 24 degrees and about 40 degrees.
38. The recoil control device of claim 37 , wherein the slider is housed in a handgrip of a firearm.
39. The recoil control device of claim 34 , wherein the firearm is designed for .45 caliber ammunition.
40. The recoil control device of claim 34 , wherein the firearm is designed for 7.62 NATO ammunition.
41. The recoil control device of claim 34 , wherein the mass of the slider is greater than the mass of the bolt head.
42. The recoil control device of claim 34 , wherein the ratio of slider mass to bolt head mass is approximately 2 to about 4.
43. The recoil control device of claim 31 , wherein the mass of the slider is greater than the mass of the bolt head.
44. The recoil control device of claim 43 , wherein the ratio of slider mass to bolt head mass is approximately 2 to about 4.
45. The recoil control device of claim 43 , wherein the ratio of slider mass to bolt head mass is approximately 2.5 to about 3.
46. The recoil control device of claim 31 , wherein the firearm is designed for .45 caliber ammunition.
47. The recoil control device of claim 31 , wherein the firearm is designed for 7.62 NATO ammunition.
48. The recoil control device of claim 31 , wherein the slider comprising an initial or first sloped surface and a second sloped surface contains no other sloped surfaces to contact the bolt head or the linkage to the bolt head.
49. The recoil control device of claim 31 , wherein the configuration of the bolt head and the slider is set so that the impulse transmitted from the bolt head to the slider has a margin of play a longitudinal component of the impulse.
50. The recoil control device of claim 31 , wherein the slider is housed in a handgrip of a firearm.