Heated Cosmetic Applicator With Localized Exit Heating
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Solution Overview
Problem
Existing heated cosmetic and dermatologic applicators face issues such as uneven product heating, bulkiness due to heating components, unsuitability for flowable products, and inefficiencies in power consumption and safety, particularly with prior art devices that heat the entire reservoir or require external power sources.
Innovation Solution
A compact, integral applicator with a modular, printed electronic circuit and flexible heater technology, where heating occurs only at the exit structure, using low voltage battery power and a closure mechanism to control product flow and heating, eliminating the need for a rheostat and reducing bulkiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating means is associated with the reservoir, then product can be heated prior to dispensing, but all product in the reservoir is subjected to repeated temperature cycles which may damage the product
Solution Approach 1:
The heating element is positioned to heat only the product in the immediate vicinity of the dispensing orifice, rather than heating the entire reservoir contents. This localized heating approach allows the product to be warmed only where needed for application, preventing repeated temperature cycling of the bulk product and maintaining its stability.
2Temperature
If heating means is associated with the applicator, then only product being dispensed is heated, but the applicator must be enlarged to house electronic circuitry and heating means
Solution Approach 1:
The heating means and electronic circuitry are integrated into the applicator assembly in a compact configuration that combines multiple functions within the existing applicator volume, eliminating the need to enlarge the applicator while providing localized heating capability.
3Productivity
If plunger mechanism is used to dispense product, then product can be pushed from reservoir, but it is difficult to control the amount and rate of product dispensing, resulting in uneven product heating
Solution Approach 1:
The mechanical plunger system is replaced with a valve-controlled flow system that uses a valve member to regulate product flow from the reservoir through the applicator. This valve mechanism provides precise control over the amount and rate of product dispensing, enabling consistent dosing and uniform heating.
4Temperature
If high voltage power source is used for heating, then heating can be achieved, but safety concerns arise and device bulkiness increases
Solution Approach 1:
The power source voltage is changed from high voltage to low voltage operation. The heating element is designed to operate efficiently at low voltage, eliminating safety concerns associated with high voltage while maintaining the necessary heating capability for product application.
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 solution provides precise, controlled heating of products as they are dispensed, reducing power consumption, enhancing safety, and allowing for the use of flowable products without leakage, while maintaining a sleek and portable design suitable for cosmetic applications.
Implementation Method 1
A compact, space-saving electronic heating means that is capable of connecting to a low voltage battery power source is located in or immediately adjacent to the exit structure so that product is heated only as it is about to exit the applicator
Data Source
AI summary
An improved heated, integral applicator for flowable cosmetic and dermatologic products comprising flexible printed circuits and, optionally, flexible heater technology. The present invention is safer to use and has more reliable electronics than the prior art; is more convenient to use and carry; is capable of precise dosing; is simpler and cheaper to manufacture and assemble; offers special applicator tips for precise application of treatment and makeup products. The present invention is useful for applying cosmetic and dermatologic treatment products of all types, including products to treat skin, hair and nails. Suitable skin treatment products include those effective at deeper layers of the skin.