Deep Fryer Tank Indentation Layout for Thermal Deformation Control

The patent applies local quality by adding rigidifying lateral indentations at specific locations on the tank sides and bottom. These indentations are strategically positioned to provide localized structural reinforcement where thermal stress is most likely to cause deformation, while leaving other areas of the tank with the original smooth deep-drawn metal surface for ease of manufacture.

The rigidifying lateral indentations are pre-formed during the deep-drawing manufacturing process itself, before the tank is put into service. This preliminary action of creating the indentations during manufacturing prevents the need for additional reinforcement steps later, while ensuring the structural integrity is established beforehand to prevent popping and deformation during thermal cycles.

The patent segments the continuous lateral surface of the tank into distinct regions by introducing rigidifying lateral indentations. These indentations divide the side walls and bottom into separate zones, creating a segmented structure that prevents the propagation of deformation across the entire tank surface, thereby reducing popping noises and sudden deformations.

The patent adds a new dimensional feature to the tank by creating lateral indentations that extend in specific directions (e.g., perpendicular to the side walls). This introduces a third dimension of structural complexity to a previously two-dimensional surface, creating intersecting rigidifying patterns that enhance stability without requiring multiple separate components.