Pressure-Responsive Secure Container Closure for Tool-Free Opening

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Solution Overview

Problem

Existing secure containers require sharp instruments to open, leading to destruction of the container and creation of sharp edges, making them unsuitable for post-purchase storage.

Innovation Solution

A secure container design featuring a pliant, shape-change conduit within the closure that expands when pressurized, allowing easy opening without edged tools and maintaining smooth edges, enabling reuse as a storage box.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional clam-type secure containers are used with hard plastic shells, then security and protection are improved, but ease of opening deteriorates requiring sharp instruments

Engineering Contradiction:
ImprovesecurityVSAvoidease of opening
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The closure system is segmented into a capture mechanism (lugs and grooves) that can be independently activated by pressure applied to specific portions of the container, allowing selective opening without compromising overall security structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the physical state of the container by applying pressure to deform the hard plastic shell locally, creating enough force to disrupt the closure capture and open the container without requiring cutting tools

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If hard plastic shells are cut with edged tools to open, then opening is achieved, but container integrity deteriorates creating sharp edges

Engineering Contradiction:
Improveopening capabilityVSAvoidsharp edges
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical cutting action with pressure-induced deformation, substituting the edged tool mechanism with a pressure application system that opens the container through controlled stress rather than separation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent converts the inherent strength and rigidity of hard plastic shells, which normally makes them difficult to open, into an advantage where controlled pressure application can selectively deform and open the closure without compromising the overall container structure or creating harmful sharp edges

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of operation

If conventional secure containers are opened with cutting tools, then access is gained, but container reusability deteriorates

Engineering Contradiction:
Improveaccess gainVSAvoidreusability
Core Design Contradiction:
Ease of operationVSEase of repair

Solution Approach 1:

The patent incorporates a preliminary pressure-responsive mechanism within the container structure that prepares the closure for opening by concentrating stress at specific points, allowing the container to be opened without forceful cutting that would damage the structure

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent enables recovery of the container after opening by using a mechanism that disrupts only the closure capture rather than destroying the container structure, allowing the container to be closed and reused for storage

Inventive Principle:
Principle #34Discarding and recovering

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 container can be opened with modest user force using a hand-operated bulb, avoiding damage and secondary edges, thus remaining pristine for storage and reuse.

Implementation Method 1

A capture release device is pressure responsive for releasing the closure capture from the secured condition into the released condition when pressurized

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

A pliant, shape-change conduit is provided within the container proximate the shell closure. The closure is disrupted by the shape-change within the conduit

Methodology Applied
Scientific EffectShape change: Deformation

Implementation Method 3

The release device permits the closure capture to be secured from the released condition into the secured condition when depressurized

Methodology Applied
Scientific EffectDepressurization: Depressurisation

Data Source

PatentUS8181818B2Secure container with pressure responsive conduit for closure disruption
Publication Date: 2012.05.22 POPPACK LLC
  • US8181818B2 patent drawing
  • US8181818B2 patent drawing
  • US8181818B2 patent drawing

AI summary

Secure product container 10 has opposed closure shells 10P and 10A forming product chamber 10C. The shells may be separated into an open accessible state (see FIG. 1A), in which the closure shells are uncaptured and product 10G is accessible. The closure shells may be placed together in a closed state along closure interface 12C (see FIG. 1B), in which the closure shells are captured to enclose the product. A closure capture between the closure shells holds the shells in the closed state. Closure capture 26 has a secured condition (see FIG. 2B) in which the closure shells are captured together in the closed state, and a released condition (see FIG. 2A) in which the closure shells may be uncaptured in the accessible state. Capture release device 12 on active shell 10A is pressure responsive for releasing the closure capture from the secured condition into the released condition when pressurized. When depressurized, the release device permits the closure capture to be secure from the released condition into the secured condition. Pressure system 14 (shown in FIG. 1A) is in fluid communication with the release device for pressurizing the release device to release the closure capture and uncapture the closure shells. The pressure system also depressurizes the release device to permit securing the closure capture and capturing the closure shells.