Shisha Cartridge With Rotatable Cap for Substrate Freshness

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Solution Overview

Problem

Traditional shisha devices using charcoal combustion produce harmful by-products like carbon monoxide and fail to maintain the freshness and integrity of aerosol-forming substrates like molasses due to exposure to air, leading to leakage and contamination issues.

Innovation Solution

A shisha cartridge with a cap that can be rotated to open and close, featuring removable seals and air-permeable openings to maintain freshness and prevent leakage, allowing multiple uses and resealing of the substrate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cartridge has holes or openings to facilitate airflow and aerosol flow, then the device can function properly for aerosol generation, but the substrate is exposed to air leading to oxidation, loss of freshness, and potential leakage

Engineering Contradiction:

Improveaerosol flowVSAvoidsubstrate freshness

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The cartridge is provided with a sealed state before use, with all openings closed or sealed to prevent air exposure. The sealing layer is removed or openings are uncovered only when the cartridge is ready for use, ensuring the substrate remains protected until the moment of operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The cartridge transitions between a closed sealed state for storage and a open state for use. The cap can be rotated between closed and open positions, and the sealing layer can be removed, allowing the cartridge to dynamically adjust its state based on operational requirements.

Inventive Principle:

Principle #15Dynamics

2Duration of action of moving object

If the cartridge is left open for extended use or multiple sessions, then the substrate can be accessed repeatedly, but the molasses deteriorates due to oxidation and may leak, contaminating the device

Engineering Contradiction:

Improveusage sessionsVSAvoidoxidation and leakage

Core Design Contradiction:

Duration of action of moving objectVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

By sealing the cartridge with a cap and sealing layer, an inert barrier is created between the substrate and the external environment. This prevents oxidation and contamination, allowing the substrate to remain stable during storage between multiple usage sessions.

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

3Reliability

If a removable sealing layer is used to close openings, then the substrate can be protected from air exposure, but the sealing layer may be lost or misplaced when removed

Engineering Contradiction:

Improvesubstrate protectionVSAvoidsealing layer management

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The sealing function is merged with the cap structure. The cap itself serves as the primary sealing element when closed, eliminating the need for separate removable sealing layers that can be lost. The cap integrates the sealing function into a permanent, attachable component.

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If the cap is made solid without openings, then the substrate is well protected from air exposure, but airflow and aerosol flow are blocked when the cap is in use

Engineering Contradiction:

Improvesubstrate protectionVSAvoidaerosol flow

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The cap transitions between a closed protective state and an open functional state. When closed, the cap provides full protection by covering all openings. When opened, the cap is rotated to an open position that allows airflow and aerosol generation while maintaining the ability to close and protect the substrate again.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12433333B2Shisha cartridge with cap

Publication Date: 2025.10.07 PHILIP MORRIS PRODUCTS SA

AI summary

A cartridge for housing an aerosol-forming substrate includes a body with one or more walls and a body opening. A cavity in the body is in fluid communication with the body opening. A cap may be removably and replaceably engaged with the body and may extend across the body opening. The cap may have a cap opening. A removable layer may be removably attached to the body and disposed between the body and the cap. A cartridge for housing an aerosol-forming substrate may include a body with one or more walls having a wall opening. A cavity in the body is in fluid communication with the at least one wall opening. A cap may be removably and replaceably engaged with the body and cover the wall opening.