Candle with Removable Scent Rods for Custom Fragrance

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Solution Overview

Problem

Existing candles with integrated scents lack flexibility in scent selection and regulation during burning, as they typically require fixed fragrance combinations within the wax material, limiting user control over the aroma experience.

Innovation Solution

A candle design featuring elongated bores within the wax body to accommodate scent rods, allowing users to add, mix, or remove scent elements as desired, enabling selection of different scents or no scent, and utilizing high scent oils with low melting points or encapsulated liquid scents for customizable fragrance release.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If scent material is incorporated into the flammable material, then the candle provides scent during burning, but the user lacks flexibility in scent selection and regulation

Engineering Contradiction:

Improvescent selection flexibilityVSAvoidcandle structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The candle is divided into separate functional components: a scent-free flammable material body and removable scent rods. This segmentation allows users to select different scent rods independently from the candle body, providing flexibility in scent choice without complicating the overall candle structure. The scent rods can be easily inserted or removed from bores in the candle body.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The scent function is extracted from the flammable material and placed into separate removable rods. This extraction allows the scent component to be independently selected, changed, or removed while keeping the candle body intact. Users can take out used scent rods and insert new ones without replacing the entire candle.

Inventive Principle:

Principle #2Taking out (Extraction)

2Ease of operation

If fixed fragrance combinations are used in the wax material, then the candle is simple to manufacture, but users cannot control or change the aroma experience

Engineering Contradiction:

Improveuser control over fragranceVSAvoidcandle production process

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The manufacturing process is segmented into two independent steps: producing the scent-free candle body and separately producing scent rods. This allows manufacturers to use simple, established processes for each component without needing to develop complex integrated fragrance-wax formulations, while still providing users with control over the final aroma experience.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The scent rod acts as an intermediary component that bridges the simple candle body and the desired fragrance experience. It can be easily inserted into the candle body to provide the scent function, allowing users to control the aroma without complicating the manufacturing of either the candle body or the scent rods themselves.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Quantity of substance

If high scent oils with low melting points are used, then the candle provides strong aroma, but the scent material may become too soft for standard wax candles

Engineering Contradiction:

Improvescent concentrationVSAvoidscent rod firmness

Core Design Contradiction:

Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The scent rod uses a composite material formulation combining high-scent oils with low-melting-point waxes or gelling agents. This composite structure maintains the high scent concentration while providing sufficient firmness and stability for use in standard candles. The composite material allows the rod to hold its shape at room temperature while still releasing scent effectively when heated by the candle flame.

Inventive Principle:

Principle #40Composite materials

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

Enables users to choose and change scents easily, providing a personalized aroma experience with each burning session, and allows for the use of softer or low-temperature melting scent rods within standard wax candles, enhancing user control over fragrance release.

Implementation Method 1

utilizing high scent oils with low melting points

Methodology Applied

Scientific EffectMelting: Melting

Implementation Method 2

the scent material to melt and vaporize, releasing fragrance into the atmosphere

Methodology Applied

Scientific EffectVaporization: Evaporation

Implementation Method 3

Capillary action allows the flammable substance to rise in the wick to be vaporized by the flame

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Implementation Method 4

the fuel combines with oxygen in the atmosphere to ignite and form a constant flame

Methodology Applied

Scientific EffectCombustion: Combustion

Data Source

PatentUS10519399B2Candle with scent

Publication Date: 2019.12.31 CAMPBELL LUCY M

AI summary

A scented candle is provided. The candle has a body made of a flammable material and a wick. The body of the candle is provided with one or more bores adapted for receiving a respective scent element therein as selected by a user.