Shotgun Shell Detachable Cap for Field Projectile Modification
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Solution Overview
Problem
Shotgun shells lack a mechanism for field modification of projectiles, limiting hunters and military personnel's ability to adapt to changing circumstances or mission requirements.
Innovation Solution
A shotgun shell design featuring a detachable cap that snaps into place, allowing for quick removal and replacement of projectiles, and an injection port for coating substances, enabling real-time modification of the payload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional shotgun shells with fixed projectiles are used, then the shell structure is simple and reliable, but the adaptability to changing mission requirements is poor
Solution Approach 1:
The shotgun shell is divided into separable components: a reusable casing and detachable projectiles. The casing includes a removable cap at the open end that allows projectiles to be easily removed and replaced. This segmentation enables users to keep the same casing while changing projectiles to match different mission requirements, thereby improving adaptability without significantly increasing overall system complexity.
Solution Approach 2:
The reusable casing is designed to accommodate multiple types of projectiles through the detachable cap mechanism. A single casing can be used with various projectile types (lethal, non-lethal, marking, tracing, etc.) by simply removing the cap and replacing the projectiles. This multi-functionality allows one casing to serve multiple purposes, enhancing versatility while maintaining simple shell structure.
2Adaptability or versatility
If multiple types of shotgun shells are carried to accommodate different scenarios, then the adaptability is improved, but the weight and volume of equipment increase
Solution Approach 1:
By designing a universal reusable casing that can accept different projectile types, the system reduces the need to carry multiple complete shell sets. Users only need to carry one type of casing with multiple projectile types, significantly reducing total weight and volume while maintaining the ability to adapt to different scenarios.
Solution Approach 2:
The projectiles are extracted as separate, interchangeable components from the complete shell assembly. This allows users to carry only the heavy casings once, and then swap lightweight projectiles as needed. The separation of the heavy reusable casing from the lighter projectiles enables weight optimization while maintaining scenario coverage.
3Ease of operation
If projectiles are sealed in traditional shotgun shells, then the shell reliability is maintained, but the ease of field modification is poor
Solution Approach 1:
The shell sealing system is segmented into a removable cap and the main casing. The cap can be easily detached and reattached to allow field modification of projectiles. When properly secured, the cap maintains the sealing integrity of the shell, thus enabling both ease of modification and reliability through the modular sealing approach.
Solution Approach 2:
The cap transitions from a static sealed state to a dynamic removable state, allowing users to open the shell for projectile replacement when needed. The cap can be quickly removed and resecured to maintain sealing, providing dynamic access while preserving reliability. This dynamic sealing mechanism enables field modification without compromising the shell's protective function.
Data Source
AI summary
A shotgun cartridge system includes a shotgun shell and a detachable cap. The cap fits within the casing atop the open end so as to close the casing and prevent the projectiles from falling out. An edge recess on the cap enables finger-nail removal of the cap. An injection port enables injection of a coating substance onto the projectiles. The inside wall of the casing may have a projection to snap connect the cap in the casing. The cap then has a mating projection recessed into the cap-wall and structured to snap in place below the projection on the casing when the cap-wall is slid into the casing. Alternatively, the projection is placed so as to form a thread around the inside wall and the cap's mating projection engages the thread when the cap-wall is slid, rotated and tightened against the thread.