Container Bumper with Tear Strip for Tamper-Resistant Security

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Solution Overview

Problem

Containers, particularly those made of plastic, face challenges in achieving structural integrity to withstand heavy loads while minimizing material usage and manufacturing costs, and require improved tamper-resistant features for secure access.

Innovation Solution

A container and lid assembly with an extended bumper portion featuring a removable tear strip integrated into the material, providing enhanced structural support and tamper-resistant security through a pivoting lid mechanism with locking tabs and slots, facilitating easy handling and secure closure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If containers are designed with sufficient structural integrity to withstand heavy loads, then strength is improved, but material usage and manufacturing costs increase

Engineering Contradiction:
Improvestructural integrityVSAvoidmaterial usage
Core Design Contradiction:
StrengthVSQuantity of substance

Solution Approach 1:

The patent applies local quality by concentrating reinforcement at specific locations where loads are applied (rim, base, corners) rather than uniformly throughout the entire container. This allows the container to withstand heavy stacking loads while using minimal material in non-critical areas, resolving the contradiction between strength and material usage.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The container structure is segmented into distinct functional zones (rim, sidewalls, base, corners) with different thickness and reinforcement characteristics. This segmentation allows optimization of material distribution to achieve sufficient strength at load-bearing points while minimizing overall material consumption.

Inventive Principle:
Principle #1Segmentation

2Volume of moving object

If containers are designed with cornered shapes for efficient space utilization, then volume efficiency is improved, but structural strength under load decreases

Engineering Contradiction:
Improvespace efficiencyVSAvoidstructural strength
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The patent addresses the weakness of cornered shapes by applying local reinforcement at corner positions and load-bearing areas. The cornered container body maintains its space-efficient geometry while localized thickening and reinforcement features provide the necessary structural strength to withstand stacking loads without buckling.

Inventive Principle:
Principle #3Local quality

3Use of energy by moving object

If injection pressure is reduced to lower manufacturing energy costs, then energy usage is improved, but manufacturing precision and structural integrity worsen

Engineering Contradiction:
Improvemanufacturing energyVSAvoidstructural quality
Core Design Contradiction:
Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

The patent employs parameter changes in the molding process, specifically using a two-stage injection approach with different pressures and temperatures for different phases of filling. This allows achieving high structural quality and precise dimensional control while maintaining lower overall energy consumption compared to conventional single-stage high-pressure injection.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9561880B2Container and lid
Publication Date: 2017.02.07 BWAY COROPRATION
  • US9561880B2 patent drawing
  • US9561880B2 patent drawing
  • US9561880B2 patent drawing

AI summary

A container and lid assembly is described for storing or transporting contents therein. Embodiments provide a protective security feature in the container and lid assembly. In at least some aspects of the invention a container body is disclosed having an opening, and a lid body is configured to cover the opening of the container body to form an assembly. An extended bumper portion is disposed at a periphery of the container body and substantially at the opening, wherein the bumper portion comprises a removable tear strip integrated into the material of the bumper portion. The tear strip is configured to prevent access to security mechanism of the assembly.