Method and apparatus for an action system for a firearm

a technology of action system and firearm, applied in the field of firearms, can solve the problems of non-lethal projectiles, non-lethal weapons, disproportionately bulky mechanisms, etc., and achieve the effect of low maintenance and reliabl

Active Publication Date: 2010-07-29
SNAKE RIVER MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The present invention is a roller-lock delayed blowback mechanism providing a compact, low-maintenance, reliable, and lightweight action system for a firearm, preferably a semi-automa

Problems solved by technology

This is likely because the large diameter of the cartridge would require a disproportionately bulky mechanism and would interfere with the space necessary for feeding and ejecting the cartridges when situated near the front of the bolt—as in all previous known designs

Method used

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  • Method and apparatus for an action system for a firearm
  • Method and apparatus for an action system for a firearm
  • Method and apparatus for an action system for a firearm

Examples

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Embodiment Construction

[0027]While the present invention is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail preferred embodiments of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated.

[0028]FIG. 1 depicts a semi-automatic shotgun having a roller-lock mechanism deployed within a reinforcing boss 4 on a receiver 2. A bolt 1 rides within the receiver 2 to close a firing chamber 20 in a barrel 5. The bolt 1 extends rearward past an ejection port 3 when out of battery position. It should be noted that in this and other figures, certain details of the firearm not related to the patentable aspects of the present invention—such as the trigger mechanism and magazine—are not enumerated.

[0029]FIGS. 2 and 6 depict a partial horizontal cross-sectional view about th...

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PUM

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Abstract

A method and apparatus providing an action system for a semi-automatic shotgun including a receiver having an ejection port for expelling an empty cartridge of a fired projectile. The action system includes a bolt attached to a bolt carrier, wherein the bolt and the bolt carrier are movable within the receiver and substantially parallel to a longitudinal axis. A surface is attached to at least the bolt carrier or the receiver, and a roller is positioned rearward of the ejection port and proximate the surface, wherein a resistance is provided to rearward movement of at least the bolt or bolt carrier.

Description

RELATED APPLICATIONS[0001]This application is a continuation-in-part that claims the benefit of U.S. patent application Ser. No. 11 / 003,073, filed Dec. 3, 2004; which claims the benefit of U.S. Provisional Patent App. No. 60 / 526,540, filed Dec. 3, 2003; the contents of which are expressly incorporated herein by reference.TECHNICAL FIELD[0002]The invention relates generally to the field of firearms, and more specifically to the operating system of a firearm.BACKGROUND OF THE INVENTION[0003]The roller-lock delayed blowback action system has been employed in rifles and sub-machine guns since the 1950's and is well known to those familiar with firearm design, but it has not previously been employed in a semi-automatic shotgun. This is likely because the large diameter of the cartridge would require a disproportionately bulky mechanism and would interfere with the space necessary for feeding and ejecting the cartridges when situated near the front of the bolt—as in all previous known des...

Claims

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Application Information

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IPC IPC(8): F41A3/26
CPCF41A3/46
Inventor HAJJAR, JEFFREYSTOCKTON, WARREN
Owner SNAKE RIVER MACHINE
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