Non-Lethal Projectile Assembly to Prevent Leakage and Disconnection
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Solution Overview
Problem
Existing non-lethal projectiles face issues with disconnection of components during loading, leading to malfunctions and potential harm to the carrier, limiting the effectiveness and safety of non-lethal rifles.
Innovation Solution
A projectile design featuring a hemispherical member connected to a sidewall via a closing element, which includes an inner aperture and a closing mechanism to securely hold non-lethal material, preventing leakage and ensuring structural integrity during firing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a hemispherical member is connected to a sidewall member using glue, then the projectile can be assembled, but the connection may disconnect before firing causing malfunction
Solution Approach 1:
The projectile is divided into distinct segments (hemispherical member, sidewall member, base member) that are connected through mechanical interference fits and geometric constraints rather than adhesives. The hemispherical member fits into the sidewall member, which in turn fits into the base member, creating a segmented structure held together by geometry alone.
Solution Approach 2:
The sidewall member acts as an intermediary component between the hemispherical member and the base member. It provides a mechanical bridge that transfers and distributes loads, ensuring stable connection without requiring adhesive materials. The sidewall member's geometric design mediates the connection forces between the other components.
2Ease of manufacture
If an opening passes through the exterior of the projectile for filling materials, then the projectile can be filled with non-lethal material, but material may leak before firing
Solution Approach 1:
The projectile is designed with a pre-formed sealed chamber structure where the hemispherical member, sidewall member, and base member are assembled in a specific sequence to create a closed container before filling. The opening is provided temporarily during assembly but is sealed closed after filling, preventing any material leakage during storage or transport.
Solution Approach 2:
The filling opening is extracted or removed after the filling process is completed. The patent describes providing an opening that passes through the exterior for filling purposes, then sealing or closing this opening after the non-lethal material has been inserted, thereby eliminating the leakage pathway while maintaining the filled state.
3Ease of operation
If the projectile components are loosely connected, then assembly is easier, but structural integrity is compromised during firing
Solution Approach 1:
The projectile components feature asymmetric geometric profiles with tapered surfaces and complementary shapes that provide easy insertion during assembly but create strong mechanical interlocking during firing. The hemispherical member has a shape that fits into the sidewall member, which has corresponding asymmetric features, creating a connection that is simple to assemble but very strong when engaged.
Solution Approach 2:
The hemispherical member provides a curved, spherical interface that naturally distributes mechanical loads evenly across the connection area with the sidewall member. This spherical geometry creates a mechanically superior connection that is both easy to assemble through simple insertion and extremely strong during firing due to the distributed stress pattern.
Data Source
AI summary
A projectile for a non-lethal weapon, the projectile includes a hemispherical member; an inner element that comprises an inner aperture; a body that comprises a sidewall, wherein the sidewall comprises a front end that is adjacent to the hemispherical member and a rear end that is proximal to the hemispherical member; wherein the inner element is positioned between the front end and the rear end; wherein the inner aperture and the hemispherical member define a first inner space for receiving non-lethal material; and a closing element for closing the inner aperture.