Elastomer Cookware Handle Structure for Cool, Non-Slip Grip
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Solution Overview
Problem
Cookware handles often become excessively hot during cooking, providing inadequate thermal insulation and comfort, and existing non-slip rubber sleeves fail to offer a soft, resilient grip, especially when hands are wet or contaminated.
Innovation Solution
A cookware handle design featuring a flange portion with an elongated member connected to a hanging end, covered by a thick elastomeric outer layer, including a flexible metal ribbon strap for reinforcement, to minimize heat transfer and provide a soft, non-slip, resilient grip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin rubber sleeve is used to cover metal handle, then non-slip property is improved, but grip softness and resilience deteriorate
Solution Approach 1:
The patent changes the thickness parameter of the elastomeric layer from thin (conventional) to thick (at least 3mm), transforming the grip characteristics from hard to soft while maintaining non-slip properties. This parameter change resolves the contradiction by allowing the sleeve to be both non-slip and soft.
Solution Approach 2:
The patent uses a composite structure combining metal elongated member (for strength and heat conduction) with thick elastomeric material (for softness and non-slip grip). This composite approach allows simultaneous achievement of non-slip property and grip softness that neither material could provide alone.
2Ease of operation
If thick elastomeric material is used to provide soft grip, then grip softness is improved, but heat insulation deteriorates
Solution Approach 1:
The patent applies different material properties to different parts of the handle: the metal elongated member provides thermal conduction pathway away from grip area, while the thick elastomeric material provides softness and localized thermal insulation at the grip portion. This local differentiation resolves the contradiction between softness and heat insulation.
Solution Approach 2:
The metal elongated member acts as a thermal intermediary, conducting heat away from the elastomeric grip material, while the elastomer itself provides thermal resistance. This intermediary metal core prevents heat buildup in the soft grip material, allowing both softness and heat insulation.
3Strength
If metal is used for handle to support cookware weight, then strength is improved, but thermal insulation deteriorates
Solution Approach 1:
The patent creates a composite handle system where metal provides structural strength and thermal conduction, while the thick elastomeric material provides thermal insulation and comfortable grip. This composite structure resolves the contradiction by allowing metal to support weight while elastomer protects from heat.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design keeps the handle cool and reduces user hand stress with a comfortable, non-slip grip that maintains resilience and prevents deformation, ensuring effective thermal insulation and grip security.
Implementation Method 1
an elastomeric outer layer surround said elongated member... the superior thermal insulating properties of plastic minimize heat transfer to the grip portion held by the user
Implementation Method 2
Another important attribute of a cookware handle is that the grip is not slippery
Data Source
AI summary
A cookware handle with a soft non-slip surface is formed by molding elastomeric composition around a core or elongated member that connects a flange portion and the terminal end or hanging portion of the handle. The core or elongated member has a relatively narrow cross-section to minimize heat transfer from the pot so that the gripping portion remains cool during cooking.