Nested Tubular Food Container with Dual Cavities

The patent applies nesting by forming one tubular body inside another tubular body from a single flexible sheet. The inner tubular body is created first, then the same sheet is folded and rolled again to form an outer tubular body that contains the inner one. This nested structure provides multiple cavities for different food products while eliminating the need to join separate containers, thus reducing manufacturing complexity.

The patent applies multi-functionality by using a single flexible sheet to perform multiple functions: it forms both the inner and outer tubular bodies, creates multiple sealed cavities, and provides independent housing for different food products. This single sheet accomplishes what would traditionally require multiple separate sheets, thereby reducing raw material usage while maintaining independent product housing capability.

The patent applies dynamics by using a flexible sheet that can be dynamically transformed during the forming process. The sheet is folded and rolled in specific sequences to create the nested tubular structure, allowing the container to be formed and filled in an integrated single-method process. The flexibility enables complex forming operations that would be difficult with rigid materials, while the final sealed structure provides adequate structural strength.

The patent applies merging by combining multiple protective functions into the heat-sealing step. The heat seal simultaneously provides waterproofing, sealing, and product protection in a single operation. By integrating these functions that would traditionally require separate waterproofing, drying, fixing, and sealing steps, the manufacturing time is significantly reduced while maintaining reliable product protection.