Patent ID: 7997183
Filing Date: 2011-08-16
Classification: F41A

Abstract:
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 at the forward position the bolt head moves along the longitudinal axis of the barrel, and at the rearward position the bolt head tilts out of the longitudinal axis of the barrel, and at an intermediate position at least part of the bolt head begins tilting out of the longitudinal axis of the barrel during the movement between forward and rearward positions; and a slider comprising an initial or first sloped surface and a second sloped surface, the slider configured to contact the bolt head or a linkage to the bolt head at the first and second sloped surfaces; 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.