Ovular Container With Multi-Angle Top And Integrated Handle

The patent implements local quality by creating a non-uniform sidewall thickness distribution. The sidewall has a first portion with greater thickness providing strength near the spout and handle areas, and a second portion with reduced thickness minimizing material usage. This selective thickening and thinning allows the container to achieve necessary strength characteristics while optimizing material quantity.

The patent resolves the strength-material quantity contradiction by transitioning from a uniform two-dimensional sidewall to a three-dimensional variable thickness structure. The sidewall thickness varies along the perimeter, creating a complex geometric form that distributes material strategically - thicker where structural support is needed and thinner where it is not - thereby achieving strength optimization without proportional material increase.

The patent applies local quality by designing the sidewall with different thicknesses in different regions. The first portion of the sidewall has a first thickness while the second portion has a second thickness less than the first. This can be implemented through techniques such as variable die design in blow-molding processes, allowing differentiated thickness control while maintaining manufacturing feasibility. The result is enhanced crush resistance at critical areas without completely sacrificing manufacturing simplicity.

The patent moves from a one-parameter (uniform) sidewall design to a multi-parameter variable thickness design. By introducing thickness variation as an additional design dimension, the container achieves improved crush resistance while the manufacturing process adapts through techniques like variable die design or multi-stage molding, balancing complexity gains with performance benefits.