Dropper Applicator Tip Groove for Controlled Fluid Dispensing

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Solution Overview

Problem

Conventional dropper packages face challenges in controlling the flow of low viscosity fluid products, leading to dripping issues during application, and lack effectiveness in delivering products to both small and large skin areas efficiently.

Innovation Solution

A dropper package design featuring a deformable bulb, a tube, and an applicator tip with a groove that extends from the shank portion to the applying member, creating a dispensing channel and orifice for controlled fluid delivery, preventing dripping and allowing for both precise and massaging application on keratinous surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional bulb-dropper dispenser is used to dispense low viscosity fluid products, then the device is simple to use, but the fluid product easily drips and flow control is difficult

Engineering Contradiction:
Improveease of useVSAvoidflow control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The applicator tip is segmented into multiple functional zones: a groove portion for fluid accumulation and channeling, a shank portion for structural support, and an applying member for product delivery. This segmentation allows each zone to perform its specific function optimally, with the groove capturing and directing fluid flow to prevent dripping while maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If a conventional dropper applies product to the skin, then it can cover large areas, but it cannot provide precise delivery to smaller areas

Engineering Contradiction:
Improveapplication areaVSAvoiddelivery precision
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The applicator tip employs local quality by creating different surface characteristics in different zones. The groove portion has a fluid-retaining geometry that concentrates product, while the applying member provides a controlled release surface. This allows the same device to deliver precise amounts to small areas through the groove's focused channeling while still covering larger areas when the entire applying member is used.

Inventive Principle:
Principle #3Local quality

3Reliability

If the applicator tip has a groove that extends from the shank portion to the applying member, then fluid product is retained and dripping is prevented, but the device complexity increases

Engineering Contradiction:
Improvedripping preventionVSAvoidapplicator structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The groove, shank portion, and applying member are merged into a single integrated applicator tip structure rather than separate components. This unified design prevents dripping through the groove's fluid-retaining geometry while avoiding the complexity of multiple detachable parts. The groove is formed as an integral feature of the applicator tip, combining fluid management and application functions in one piece.

Inventive Principle:
Principle #5Merging (Combining)

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 design ensures controlled fluid flow and prevents dripping, providing effective application on various skin areas while offering comfort and ease of use, with the groove on the applicator tip accumulating product to prevent wastage and enhance application precision.

Implementation Method 1

Upon release of the deformable bulb, a vacuum is formed, resulting in the drawing of liquid into the ridged tube.

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

Upon release of the deformable bulb, a vacuum is formed, resulting in the drawing of liquid into the ridged tube.

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 3

the applicator tip includes groove that extends from an upper end of the shank portion to at least along a length of the applying member of the applicator tip

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 4

the groove of the shank portion at least partially defines a dispensing channel that is in fluid communication with the channel of the tube

Methodology Applied
Scientific EffectSurface tension: Surface Tension

Data Source

PatentUS12133586B2Dropper package for dispensing a fluid product
Publication Date: 2024.11.05 APR BEAUTY GRP INC
  • US12133586B2 patent drawing
  • US12133586B2 patent drawing
  • US12133586B2 patent drawing

AI summary

A dropper package for dispensing and applying a fluid product, comprising a container body for storing the fluid product and a dropper assembly coupled to one end of the container body. The dropper assembly comprises a deformable bulb, a tube with its proximal end connected to the deformable bulb, and an applicator tip connected to a distal end of the tube. The applicator tip comprises a shank portion and an applying member that has two opposing main application faces. The applicator tip includes a groove on its outer surface that extends from a proximal end of the shank portion to at least a length of the applying member on one of the two opposing main application faces. The applying member is adapted to apply and dispense the fluid product in a very controlled manner as well as massage the user's keratinous surface.