Foam Applicator With Fabric Cover Retention

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Solution Overview

Problem

Existing foam applicators designed for irregular, rough, or abrasive surfaces lack effective stabilization and fluid delivery mechanisms, leading to instability and inefficiency in applying fluids.

Innovation Solution

A foam applicator with a durable fabric cover and a foam element support platform featuring a friction-enhancing structure, where the foam element is retained solely by the fabric cover, providing stability and efficient fluid communication through a fluid port, and optionally includes a removable cap and latch mechanism for secure attachment to a fluid container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the foam element is retained by mechanical retainers, then the foam element is securely held, but the device complexity increases and fabrication becomes more difficult

Engineering Contradiction:
Improvefoam element retentionVSAvoidmechanical retainer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes mechanical retainers from the foam applicator design. Instead of using clips, screws, or other mechanical fastening elements to secure the foam element, the design relies solely on the fabric cover to retain the foam element through friction and structural enclosure, thereby eliminating complex mechanical components.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical retention systems with a fabric-based retention system. The fabric cover, through its material properties and structural configuration (including the retaining wall and friction-enhancing structure), provides the necessary retention force without requiring mechanical fasteners, thus simplifying the overall device.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Stability of the object's composition

If the foam element is stabilized with friction-enhancing structures, then lateral movement is prevented, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvefoam element stabilityVSAvoidfriction-enhancing structure precision
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent applies friction-enhancing structures (such as raised ridges or textured surfaces) only at specific locations on the foam element engaging surface where lateral movement is most likely to occur. This localized approach provides stability where needed without requiring high precision across the entire surface, thereby reducing overall manufacturing complexity.

Inventive Principle:
Principle #3Local quality

3Reliability

If the fabric cover is peripherally bonded to the foam element, then the foam element is securely covered, but the fabrication process becomes more complex

Engineering Contradiction:
Improvefabric cover attachmentVSAvoidfabric bonding process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The fabric cover is designed to be self-retaining through its structural configuration and material properties. The peripheral bonding serves dual purposes: it secures the fabric cover to the foam element while simultaneously creating the retaining wall structure that prevents the foam element from moving laterally. This integration of functions simplifies the overall fabrication process.

Inventive Principle:
Principle #25Self-service

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 ensures stable application of fluids on irregular surfaces by preventing lateral movement of the foam element and facilitating efficient fluid delivery, while eliminating the need for mechanical retainers and simplifying the fabrication process.

Implementation Method 1

The foam element engaging surface may include a raised friction-enhancing structure, such as raised ridges, to help stabilize the foam element against lateral movement

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

A foam element support platform having a first side and a second side... A fluid port in the foam element support platform provides fluid communication between the first and second sides thereof

Methodology Applied
Scientific EffectFluid flow through porous material: Porosity

Implementation Method 3

The fabric cover may be bonded to the fabric mounting surface by a bond selected from the group consisting of heat-formed melt bonds, ultrasonic bonds and adhesive bonds

Methodology Applied
Scientific EffectHeat-formed melt bonds: Melting

Implementation Method 4

The fabric cover may be bonded to the fabric mounting surface by a bond selected from the group consisting of heat-formed melt bonds, ultrasonic bonds and adhesive bonds

Methodology Applied
Scientific EffectUltrasonic bonds: Ultrasonic Vibration

Data Source

PatentUS9055803B2Foam applicator for applying a fluid
Publication Date: 2015.06.16 TMP TECH
  • US9055803B2 patent drawing
  • US9055803B2 patent drawing
  • US9055803B2 patent drawing

AI summary

A fluid applicator includes an applicator body, a foam element, and a fabric cover protecting the foam element. The applicator body includes a foam element support platform having first and second sides. A foam element engaging surface is provided on the first side of the foam element support platform. A foam element retaining wall is disposed at a peripheral edge of the foam element engaging surface. The foam element has a first side supported on the foam element engaging surface, a second side opposite the first side, and a peripheral edge at least partially enclosed by the retaining wall. A fabric mounting surface is disposed outside the retaining wall. The fabric cover is arranged on the second side of the foam element and is peripherally bonded to the fabric mounting surface. A fluid port provides fluid communication between the first side and second sides of the foam element support platform.