Stackable cookware and lids

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Solution Overview

Problem

Cookware and lid storage often consumes space due to inefficient stacking, making it difficult to organize and store in limited areas like kitchen cabinets.

Innovation Solution

A stackable cookware system with vessels and lids of consistent upper diameters and tapered sidewalls, featuring interchangeable handles and alignment features, allowing for flexible stacking arrangements and stable positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cookware vessels are stacked with larger vessels at the bottom and smaller vessels inside, then storage organization is improved, but storage space efficiency deteriorates and difficulty to store in limited locations increases

Engineering Contradiction:
Improvestorage organizationVSAvoidstorage space efficiency
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent implements nesting by allowing smaller cookware vessels to be placed inside larger vessels, with lids stacking on top of vessels. The consistent upper diameter design enables lids to nest on various vessel sizes, creating a compact nested arrangement that optimizes vertical storage space while maintaining organization.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent applies universality through consistent upper diameters across different vessel sizes, allowing a single lid design to fit multiple vessel types. This multi-functional approach enables interchangeable stacking arrangements where any lid can stack on any vessel of the same diameter, increasing storage flexibility and space efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If cookware vessels have varying diameters for different sizes, then versatility in cooking options is improved, but stacking stability and space efficiency deteriorate

Engineering Contradiction:
Improvecooking optionsVSAvoidstacking stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by varying the lower diameters of vessels while maintaining consistent upper diameters. This localized differentiation allows vessels to have different capacities and cooking characteristics (versatility) while the consistent upper portion ensures stable stacking arrangements and interchangeability with lids.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the vessel geometry into distinct zones: the upper diameter region that ensures stacking compatibility and the lower diameter region that provides cooking versatility. This segmentation allows each zone to fulfill its specific function independently.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If lids are placed on top of stacked vessels, then access to lids is improved, but storage space consumption increases

Engineering Contradiction:
Improveaccess to lidsVSAvoidstorage space consumption
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent utilizes vertical stacking in the third dimension to organize cookware. By stacking lids vertically on top of vessels rather than placing them beside vessels, the design transforms horizontal storage space into vertical storage space, reducing the footprint while maintaining easy access to lids.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3210503B1Stackable cookware and lids
Publication Date: 2019.07.03 CALPHALON CORP
  • EP3210503B1 patent drawingFigure 1~2
  • EP3210503B1 patent drawingFigure 3~4
  • EP3210503B1 patent drawingFigure 5~6

AI summary

Systems and methods are disclosed for stackable cookware and lids. An example stackable cookware system may include a first vessel (118) having a first upper diameter, the first vessel comprising a first handle (120) with a first length, a first lid (110) having the first upper diameter, the first lid comprising a second handle (112) with a second length and a first inner rim positioned inside the first vessel, and a second vessel (122) having the first upper diameter, a third handle (124), and a first gripping portion, wherein the first gripping portion has a lower surface aligned with a lower portion of the third handle, wherein the first vessel, the first lid, and the second vessel are stackable in a stack with an interchangeable arrangement.