PET Bottle Lock Handle with Textured Anchor Faces

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Solution Overview

Problem

Large-format PET water bottles face challenges with PET handles that are prone to deflection and tearing, complicating recycling due to the need for separate removal, and existing handles made of different plastics contaminate recycling processes.

Innovation Solution

A handle design with textured anchor faces integrated during PET bottle manufacturing, ensuring secure attachment and compatibility for PET bottles, allowing for integrated recycling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If PET handles are used with PET water bottles, then recycling compatibility is improved, but the handles are prone to deflection and tearing

Engineering Contradiction:

Improverecycling compatibilityVSAvoidhandle strength

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent modifies the geometric parameters of the handle, specifically increasing the thickness of the handle wall and optimizing the anchor geometry to achieve both recycling compatibility and sufficient strength for heavy bottles

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite structure where the handle is made of PET material matched to the bottle, creating a homogeneous composite that ensures recycling compatibility while maintaining structural integrity through optimized material distribution

Inventive Principle:

Principle #40Composite materials

2Reliability

If handles are integrated into water bottles during manufacturing, then lifting safety is improved, but removal during recycling becomes difficult or impossible

Engineering Contradiction:

Improvelifting safetyVSAvoidrecycling process

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent makes the handle and bottle body homogeneous by using the same PET material for both components, which enables the integrated handle to be recycled together with the bottle without contamination, thus resolving the recycling difficulty while maintaining lifting safety

Inventive Principle:

Principle #33Homogeneity

3Reliability

If handles are made of different plastic than the water bottle, then handle performance is improved, but recycling is contaminated

Engineering Contradiction:

Improvehandle performanceVSAvoidplastic purity

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent achieves homogeneity by using identical PET material for both the handle and bottle body, eliminating material differences that would cause recycling contamination while still providing sufficient handle performance through optimized geometric design and anchor configuration

Inventive Principle:

Principle #33Homogeneity

Data Source

PatentUS20250304323A1Bottle lock apparatus and methods of manufacture

Publication Date: 2025.10.02 POLYMER SOLUTIONS INTERNATIONAL INC

AI summary

A handle for a bottle, the handle having a grip portion with a first grip junction and a second grip junction. The handle also has a first end portion with a first proximal junction and a first distal junction, the first proximal junction connecting to the first grip junction, and a second end portion with a second proximal junction and a second distal junction, the second proximal junction connecting to the second grip junction. The handle further has a first anchor connected to the first distal junction and a second anchor coupled to the second distal junction, and has a first anchor face configured to be anchored to a first portion of the bottle and a second anchor face configured to be anchored to a second portion of the bottle. One or both of the first anchor face and the second anchor face comprise a textured surface.