Push-In Clamping Ring Teeth for Anti-Rotation Pipe Locking

The patent replaces the welding process (thermal/mechanical system) with a mechanical interlocking system consisting of circumferential teeth on the clamping ring that engage with corresponding features on the pipe. The teeth are configured with asymmetric cross-sections that create grooves in the pipe wall, forming a mechanical lock that prevents both axial removal and rotational movement, achieving permanent locking without welding operations.

The clamping ring features localized teeth with asymmetric cross-sections positioned at specific locations around the circumference. These teeth are strategically designed to engage with the pipe wall and create grooves only in the necessary regions, providing anti-rotation capability where needed while leaving other regions smooth to facilitate easy pipe insertion. The asymmetric tooth geometry allows the pipe to be pushed in axially before the teeth engage to prevent rotation.

The patent employs asymmetric tooth cross-sections where one side of each tooth has a different profile than the other side. This asymmetry is deliberately designed to create a cutting action that forms grooves in the pipe wall - the sharper edge cuts into the pipe while the broader edge provides structural support. The asymmetric geometry ensures that the teeth engage the pipe in a specific orientation, creating effective mechanical locking through groove formation rather than requiring high-precision symmetric features.