Firearm Slide Sloped Bottom Surface for Smooth Recoil
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Solution Overview
Problem
Firearms experience malfunctions such as failure to feed, eject, and extract due to interference between components during operation, leading to jerky recoil and reduced accuracy, particularly caused by abrupt changes in speed when the slide contacts cartridges in the magazine.
Innovation Solution
A sloped downward-facing surface on the slide that gradually moves cartridges away from the breech, reducing interference and maintaining a smooth recoil by ensuring continuous contact and movement during the firing operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bump or ramp is added to the bottom surface of the slide to depress cartridges in the magazine, then cartridge extraction reliability is improved, but the recoil becomes jerky due to abrupt speed changes
Solution Approach 1:
The patent applies curvature by replacing the angular bump or ramp with a rounded contour on the bottom surface of the slide. This curved surface gradually depresses cartridges in the magazine during slide rearward movement, eliminating abrupt contact points. The rounded geometry allows for progressive cartridge depression that maintains extraction reliability while producing smooth, continuous motion that eliminates jerky recoil characteristics.
Solution Approach 2:
The patent changes the geometric parameters of the slide's bottom surface from angular (bump/ramp) to curved contours with specific radius values. By controlling the curvature radius and surface profile, the patent optimizes the interaction between the slide and cartridges in the magazine, achieving both reliable extraction and smooth recoil through parameter optimization rather than qualitative design changes.
2Productivity
If the slide contacts cartridges in the magazine during operation, then cartridge feeding is ensured, but interference between components causes malfunctions and reduced accuracy
Solution Approach 1:
The curved bottom surface of the slide acts as an intermediary element between the magazine cartridges and the chamber. Instead of direct, abrupt contact that causes interference and malfunctions, the curved surface provides a mediating action that gradually guides cartridges into the chamber. This intermediary curved surface ensures reliable feeding while preventing component interference that would reduce operational reliability or accuracy.
Data Source
AI summary
Improvements to firearms that load cartridges from a magazine and/or a clip are disclosed. Specifically, improvements to slide assemblies and bolt assemblies to depress a cartridge in a magazine and/or a clip are provided. Such improvements include a sloped bottom-facing surface of the slide assembly and/or bolt assembly. The sloped bottom-facing surface is sloped along the length of the portion that contacts a cartridge in the magazine and/or clip when the slide assembly and/or bolt assembly reciprocates.