Portable Vaporizer Forced Convection Heating Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smoking devices face issues with non-uniform heat distribution, high risk of combustion, bulky and non-portable designs, complex usage, and inefficiency in delivering desirable compounds from tobacco and other plant materials due to high temperature combustion processes.
Innovation Solution
The use of forced convective heating with a temperature limiting system to maintain heat below combustion levels, ensuring uniform heat distribution, rapid warm-up, and portability, along with a simplified user interface that automatically controls temperature and inhalation flow rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high temperature combustion is used to vaporize compounds from plant material, then vaporization efficiency is improved, but harmful combustion products are generated and desirable compounds are destroyed
Solution Approach 1:
The patent applies parameter changes by precisely controlling the heating temperature to remain below the combustion point of plant material (typically maintaining temperatures between 200-400°F rather than combustion temperatures above 450°F). This temperature parameter control allows vaporization of desirable compounds while preventing the formation of harmful combustion products such as carbon monoxide and polycyclic aromatic hydrocarbons.
2Device complexity
If conductive heating is used to heat plant material, then heating simplicity is improved, but non-uniform heat distribution causes burning and inadequate heating
Solution Approach 1:
The patent employs pneumatic principles by using a fan or blower to force air flow across the plant material surface. This forced convection heating method distributes heat uniformly across the material by carrying thermal energy through the air stream, preventing localized overheating and burning while ensuring adequate heating of all portions of the plant material.
3Measurement precision
If large thermal mass is used to maintain narrow temperature range, then temperature control precision is improved, but device portability deteriorates
Solution Approach 1:
The patent applies self-service principles where the system automatically adjusts heating parameters based on real-time temperature feedback from sensors. The microprocessor-controlled system monitors temperature continuously and dynamically modulates heating element power to maintain the desired temperature range, eliminating the need for large thermal mass while achieving precise temperature control in a portable device.
4Adaptability or versatility
If manual temperature adjustment is required, then device adaptability is improved, but ease of operation deteriorates due to trial and error process
Solution Approach 1:
The patent implements feedback control by incorporating temperature sensors that continuously monitor the heating element and plant material temperature, with the microprocessor using this feedback data to automatically adjust heating power. This closed-loop feedback system eliminates the need for manual trial-and-error adjustment while maintaining optimal temperature control and adaptability to different plant materials.
5Productivity
If combustion process is used to release active constituents, then release efficiency is improved, but quantity of original material needed increases due to destruction of desirable compounds
Solution Approach 1:
The patent applies parameter changes by controlling the heating temperature to stay below the combustion point of plant material (typically maintaining temperatures between 200-400°F rather than combustion temperatures above 450°F). This temperature parameter control allows vaporization of desirable compounds while preventing their destruction, thereby reducing the quantity of original material needed to achieve the desired effect.
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
This approach results in a more efficient, portable, and user-friendly device that minimizes combustion risks, optimizes the use of tobacco, and ensures consistent delivery of active compounds, while being cost-effective and easy to manufacture.
Implementation Method 1
an electrically heated bowl
Implementation Method 2
The tobacco in direct contact with the heating element gets much hotter than other tobacco disposed farther from the heating element
Implementation Method 3
heats plant matter to a temperature just below combustion temperature for cellulose of 450 degrees Fahrenheit, thereby generating an aerosol comprising the desired compounds
Implementation Method 4
generating an aerosol comprising the desired compounds
Data Source
AI summary
A hand-held apparatus (100) to vaporize volatile compounds disposed in a solid source material is disclosed. The hand-held apparatus comprises a housing (105), a mouthpiece tube (118) removeably disposed within, and extending outwardly from, said housing, a heating element assembly (114) in communication with said mouthpiece tube, wherein said heating element assembly heats to an operating temperature of about 450° F. in about 60 seconds.