Angled Shaft Shell Extractor Tool with Multi-Function Sheath
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Solution Overview
Problem
Spent ammunition casings often become stuck in firearms, requiring quick and efficient removal for continued operation, especially in combat situations, where existing solutions like improvised tools are inadequate.
Innovation Solution
A multi-function shell extractor tool with a handle and angled shaft for leverage, optionally including a cutting element, pry bar, and bit attachment, designed to fit within a firearm's chamber, combined with a sheath for secure carrying, allowing for efficient removal of jammed casings without adding significant weight or bulk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standard paint can opener is used as an improvised shell extractor, then the tool is lightweight and simple, but it lacks additional functionalities needed in combat situations
Solution Approach 1:
The patent combines multiple functions into a single shell extractor tool: the primary shell extraction function is merged with a seat belt cutter function, and optionally with a pry bar or screwdriver function. This merging of previously separate tools into one unified device directly addresses the contradiction by increasing functional versatility while maintaining relatively simple construction.
Solution Approach 2:
The shell extractor is designed as a universal tool that can perform multiple functions: extracting jammed shells from firearms, cutting seat belts, and optionally prying or driving bits. This multi-functionality approach directly resolves the contradiction by making the tool adaptable to various combat situations without requiring multiple separate tools.
2Adaptability or versatility
If additional functionalities are added to the shell extractor, then the tool becomes more versatile, but it increases the weight and bulk of the gear
Solution Approach 1:
By merging multiple functions into a single tool, the patent eliminates the need for service members to carry separate shell extractors, seat belt cutters, and pry bars. The combined tool achieves functional versatility comparable to multiple separate tools while reducing the total weight and bulk of gear that must be carried.
3Speed
If the shell extractor is designed for quick removal of jammed casings, then the extraction speed is improved, but the tool requires precise engagement with the casing
Solution Approach 1:
The shell extractor features a pre-formed engagement geometry with an angled shaft and positioned tip that is designed to automatically align with and engage the rim of a jammed shell casing. This preliminary configuration of the tool's engagement surfaces ensures that when the tool is inserted, it naturally finds the correct engagement position, reducing the precision requirement for the user while enabling quick extraction.
Data Source
AI summary
A shell extractor tool for removing a jammed ammunition shell from a firearm comprises a handle portion and a shaft portion. The shaft portion is adapted to be inserted through a firearm port and terminates at a proximal end and wherein the proximal end is angled relative to a remainder of the shaft portion to permit engagement of the jammed ammunition shell in a chamber of a firearm. The handle portion is adapted to be grasped by a user and to apply leverage to the jammed ammunition shell, to allow removal of the ammunition shell from the firearm with the shell extractor tool. The shell extractor tool may be provided with a sheath to provide a shell extractor tool kit. The sheath comprises a first structural portion and a second structural portion. The first structural portion and second structural portion are secured together to form a pocket to receive and reversibly secure the extractor tool. The sheath may optionally comprise a third structural portion. The first, second and optional third structural portions may each include one or more top securing apertures, wherein the top securing apertures are adapted to align each other to facilitate assembly of the portions.