Mason Jar Sealing Cover With Flexible Vacuum Valve for Leak Prevention

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Solution Overview

Problem

Existing Mason jar sealing covers suffer from size limitations, leakage, poor sealing durability, complex operation, safety hazards, and material deformation, leading to increased maintenance costs and user inconvenience.

Innovation Solution

A Mason jar sealing structure featuring a flexible part on the sealing cover, designed to work with various jar sizes, includes an air extracting hole and air outlet holes, utilizing a silicone material that deforms under vacuum to enhance sealing and is extruded for a tight fit, with a jar cover that squeezes the flexible part for additional sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a standardized sealing cover design is used, then the sealing cover can be compatible with a specific negative pressure pump, but the applicability and flexibility are reduced, limiting user choice of different jar sizes

Engineering Contradiction:

ImproveapplicabilityVSAvoidstandardized size limitation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sealing cover is designed with a universal interface that can accommodate multiple jar sizes. The flexible part made of silicone material can adapt to different opening diameters, allowing the same sealing cover to be used with various Mason jar sizes while maintaining effective sealing and vacuum functionality

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If traditional sealing cover materials and design are used, then the structure is simple, but the sealing effect deteriorates rapidly during prolonged use or frequent opening and closing

Engineering Contradiction:

Improvesealing effectVSAvoidsealing cycle

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The sealing cover uses silicone material with specific physical parameters including elasticity and softness. The flexibility parameter allows the sealing surface to deform and adapt to the jar opening, maintaining consistent sealing pressure throughout the sealing cycle even during frequent opening and closing operations

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The sealing cover combines silicone material with appropriate structural design elements. The composite structure integrates the flexible silicone sealing surface with a rigid or semi-rigid support structure, providing both adaptability and durability for long-term reliable sealing

Inventive Principle:

Principle #40Composite materials

3Object-affected harmful factors

If traditional metal sealing cover is used, then the sealing effect is strong, but the operation safety is compromised due to potential finger cutting hazards

Engineering Contradiction:

ImprovesafetyVSAvoidsealing effect

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The sealing cover employs a flexible silicone shell design that replaces traditional rigid metal construction. This flexible shell maintains effective sealing through material properties like elasticity and conformability while eliminating sharp edges and hazardous surfaces, ensuring user safety during handling and operation

Inventive Principle:

Principle #30Flexible shells and thin films

4Reliability

If frequent replacement of sealing cover is required, then the sealing effect can be maintained, but the cost of use and maintenance difficulty increase

Engineering Contradiction:

Improvesealing effectVSAvoidmaintenance difficulty

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The silicone-based sealing cover is designed to be self-maintaining through its material properties. The material resists degradation, deformation, and damage from frequent use, and can be easily cleaned and reused without requiring replacement or complex maintenance procedures, reducing both cost and maintenance difficulty

Inventive Principle:

Principle #25Self-service

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 flexible design provides easy vacuuming, easy disassembly, prevents leakage, extends sealing duration, enhances safety, and reduces material deformation, thus lowering maintenance costs and improving user convenience.

Implementation Method 1

when the negative pressure pump pumps air, the flexible part is deformed, the air inside the Mason jar body is pumped out through the air outlet hole; when the negative pressure pump stops pumping air, the flexible part is extruded at the air extracting hole under the action of the internal air pressure

Methodology Applied

Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentUS12492060B2Mason jar sealing structure

Publication Date: 2025.12.09 SHENZHEN SETOO TECH CO LTD

AI summary

A Mason jar sealing structure, comprising a sealing cover, and a flexible part is provided on the sealing cover; the flexible part is located corresponding to position of negative pressure end of negative pressure pump; a Mason jar body, which is internally hollow, and the sealing cover is set covering opening of the upper Mason jar body; a jar cover, which is connected to the Mason jar body and is located corresponding to position of the flexible part; middle of the sealing cover is provided with an air extracting hole, and the flexible part is provided at the air extraction hole; side surface of lower part of the flexible part is provided with air outlet holes. Through designing the flexible part to be assembled on the sealing cover, the invention has advantages of easy vacuuming, easy disassembly, not easy to leak, and long sealing cycle.