Cream Dispensing Applicator with Removable Pad and Valve

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Solution Overview

Problem

Existing applicator technologies fail to provide an efficient, even, and clean method for applying creams to hard-to-reach areas of the body, such as the middle back, without direct hand contact.

Innovation Solution

An elongated applicator assembly with a detachable, soft, and absorbent pad coupled to a handle, featuring a channel and outlet ports for cream dispensing, along with a plunger and valve mechanism for controlled liquid delivery, allowing for adjustable length and easy cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional applicator is used, then the structure is simple, but the application is not clean and hands come in direct contact with the cream

Engineering Contradiction:
Improveclean applicationVSAvoidapplicator structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a pad as an intermediary element between the cream reservoir and the user's body. The pad is coupled to the applicator head and applies cream without direct hand contact, achieving clean application while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The applicator is divided into separate functional components: a removable pad element and a handle with reservoir. This segmentation allows the pad to be easily replaced and cleaned, improving ease of operation without requiring a completely complex device.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a fixed-length applicator is used, then the structure is simple, but it cannot reach hard-to-access areas of the body

Engineering Contradiction:
ImprovereachabilityVSAvoidadjustable mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The applicator handle incorporates an adjustable telescopic mechanism that allows the length to be dynamically changed. This enables the user to extend or retract the handle to reach different body areas, improving adaptability while using a relatively compact adjustment mechanism.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If a cream dispensing system is added, then controlled delivery is achieved, but leakage may occur

Engineering Contradiction:
Improvecontrolled deliveryVSAvoidleak prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent extracts the dispensing control mechanism from the main body, using a separate valve system that can be independently controlled. This allows precise control of cream flow while isolating the leakage risk to a contained area, improving both controlled delivery and reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of manufacture

If the pad is permanently attached, then the structure is simple, but cleaning and replacement are difficult

Engineering Contradiction:
Improvepad replacementVSAvoidattachment mechanism
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The pad is designed as a separable component with a simple attachment mechanism that allows easy removal and replacement. This segmentation enables users to clean or replace the pad without disassembling the entire applicator, simplifying maintenance while avoiding complex attachment systems.

Inventive Principle:
Principle #1Segmentation

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 easy, even, and clean application of creams to hard-to-reach areas, reducing the risk of sunburn and skin cancer, while preventing leakage and allowing for pad replacement or rinsing.

Implementation Method 1

A pad is coupled to the head. The pad is configured to apply liquid to a user's body when the liquid is dispensed through the pad and the pad is rubbed onto the user's body.

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

A plunger, a shaft, a knob, and a switch are coupled to the handle. The shaft is coupled to and extends through the plunger. The knob is operationally coupled to the plunger wherein manipulation of the knob urges the plunger into the shaft.

Methodology Applied
Scientific EffectPressure: Pressure Increase

Data Source

PatentUS8998523B1Cream dispensing applicator assembly
Publication Date: 2015.04.07 MULLER BARBARA J
  • US8998523B1 patent drawing
  • US8998523B1 patent drawing
  • US8998523B1 patent drawing

AI summary

A cream dispensing applicator assembly allows an individual to easily, evenly, and cleanly apply cream to hard-to-reach areas of the body. The assembly includes an elongated member having a head coupled to a handle. The elongated member has an interior space configured for holding a liquid. A pad is coupled to the head. A channel extends through the head. A plurality of outlet ports is coupled to the pad and to the channel. A plunger, a shaft, a knob, and a switch are coupled to the handle. The shaft is coupled to and extends through the plunger. The knob is operationally coupled to the plunger wherein manipulation of the knob urges the plunger into the shaft. A valve is coupled to the handle and to the channel. The switch is operationally coupled to the valve wherein manipulation of the switch selectively opens and closes the valve.