Published Technical Disclosure Archive

Advanced Aerosol Cartridge Design for E-Vapor Systems

Publication ID: 24-11856991_0006_PTD
Published: October 27, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Aerosol Cartridge Design for E-Vapor Systems,” Published Technical Disclosure No. 24-11856991_0006_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11856991_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,856,991.

Background and Problem Solved

The original patent, Activatable and Reclosable Cartridge Assembly for an Aerosol-Generating System, presents limitations in terms of leakage, aerosol generation efficiency, and user safety. This new invention addresses these limitations by introducing novel design elements and manufacturing methods that enhance the overall performance and reliability of the cartridge assembly.

Novelty and Inventive Step

The new claims introduce novel design elements, such as the reinforced circumferential rib and pressure relief valve, which provide a significant improvement in aerosol generation efficiency and user safety. The helical configuration of the sorption elements and the ultrasonic welding process also represent a non-obvious departure from the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include different materials or geometries for the circumferential rib, varying configurations for the pressure relief valve, or alternative stacking patterns for the sorption elements. Additionally, the monitoring and control system could be integrated into the cartridge assembly or the aerosol-generating system as a whole.

Potential Commercial Applications and Market

The enhanced cartridge assembly has significant commercial potential in the e-vapor and heat-not-burn industries, where improved aerosol generation efficiency, user safety, and manufacturing efficiency are highly valued. The invention could be licensed or sold to companies operating in these industries, providing a competitive advantage in terms of product performance and reliability.

CPC Classifications

SectionClassGroup
A A24 A24F40/465
A A24 A24F7/00
A A24 A24F40/30
A A24 A24F40/42
A A24 A24F40/485
H H05 H05B6/105
A A24 A24F40/10

Field of Art

Aerosol generation systems, electronic smoking devices, and associated cartridge technologies with expertise in mechanical design, materials engineering, and thermal control systems

Person of Ordinary Skill (PHOSITA) Profile

A professional with a bachelor's or master's degree in mechanical engineering, materials science, or related field, having 3-5 years experience in electronic smoking device design, familiar with thermal control systems, fluid dynamics, and precision manufacturing techniques

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent incremental improvements to the source patent's core aerosol generation technology, utilizing standard engineering design techniques and known optimization strategies. The disclosed modifications leverage predictable combinations of existing technical elements to enhance performance, safety, and manufacturing efficiency. These variations demonstrate standard problem-solving approaches within the technical domain of aerosol generation systems.

Obvious Combinations & Variations

Source Patent Element
Cartridge assembly with compartmentalized design and end walls
PTD Variation
Adding circumferential reinforcement ribs to end walls to reduce leakage
Obviousness Reasoning
Structural reinforcement is a predictable design optimization technique for reducing material deformation and improving sealing performance, representing a routine engineering design choice
Source Patent Element
Reclosable cartridge assembly with multiple compartments
PTD Variation
Implementing helical stacking configuration for sorption elements
Obviousness Reasoning
Optimizing material storage through alternative geometric arrangements is a standard engineering approach for maximizing capacity within constrained spatial volumes
Source Patent Element
Aerosol generation system with heating elements
PTD Variation
Adding pressure relief valve for enhanced user safety
Obviousness Reasoning
Incorporating fail-safe pressure management mechanisms is a predictable safety enhancement technique in thermal systems with potential pressure buildup
Source Patent Element
Cartridge assembly with multiple component interfaces
PTD Variation
Ultrasonic welding technique for hermetic sealing of end walls
Obviousness Reasoning
Selecting advanced manufacturing processes for improved component integration represents a standard engineering approach to enhancing product reliability
Source Patent Element
Aerosol generation system with thermal control
PTD Variation
Implementing sensor-based monitoring and adaptive power control
Obviousness Reasoning
Integrating feedback control mechanisms is a predictable solution for optimizing performance and maintaining consistent aerosol generation parameters
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856991 and the disclosed technical variations, a Person Having Ordinary Skill In The Art would find the claimed innovations obvious through routine engineering design choices, predictable combinations of known techniques, and standard optimization strategies within the field of aerosol generation systems. The variations represent incremental improvements that would be apparent to a skilled practitioner without requiring inventive insight beyond ordinary professional capabilities.

Original Patent Information

Patent NumberUS 11,856,991
TitleActivatable and reclosable cartridge assembly for an aerosol-generating system
Assignee(s)Philip Morris Products S.A.