Double-Ended Cosmetic Dispenser With Nested Elevator Stems

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Solution Overview

Problem

Existing double-ended cosmetic dispensers are bulky and unwieldy due to the large number of components required for extending and retracting first and second cosmetics, making them inefficient and difficult to manage.

Innovation Solution

A double-ended cosmetic dispenser design that reduces the number of components by using an adaptor sleeve with rotatably retained cosmetic sleeves and elevator stems, where the elevator stems have thread structures to convert rotational movement into linear movement, allowing independent and selective extension and retraction of cosmetics with alignment features to prevent rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If prior art double-ended dispensers use multiple components to extend and retract first and second cosmetics, then the dispensers can achieve independent control of cosmetics, but the dispensers become bulky and unwieldy

Engineering Contradiction:

Improveindependent control of cosmeticsVSAvoidnumber of components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple components into an integrated structure where a single rotatable base portion controls both cosmetic extensions. The cam member with helical threads merges the control mechanism for first and second cosmetics into one unified system, eliminating the need for separate control mechanisms and reducing overall component count while maintaining independent control capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cam member serves multiple functions simultaneously: it controls extension and retraction of both first and second cosmetics, provides structural support, and enables independent control through selective rotation directions. This multi-functionality reduces the number of dedicated components needed for each function

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If prior art double-ended dispensers use multiple components for extending and retracting cosmetics, then the dispensers can achieve selective extension and retraction, but the dispensers become undesirably bulky

Engineering Contradiction:

Improveselective extension and retractionVSAvoiddispenser size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The elevator cups are nested within the body portion, with first and second elevator cups arranged to share space efficiently. The cam member is rotatably associated within the tubular innerbody, creating a compact nested arrangement that minimizes the overall volume of the dispenser while maintaining full functionality for selective extension and retraction

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

If prior art double-ended dispensers use a multiplicity of components, then the dispensers can achieve independent extension and retraction of cosmetics, but the dispensers become difficult to manage

Engineering Contradiction:

Improveindependent extension and retractionVSAvoidmanageability

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The control mechanism merges multiple functions into a single rotatable base portion that independently controls both cosmetics through selective rotation directions. This unified control interface simplifies operation and management compared to handling multiple separate components, while maintaining the capability for independent extension and retraction of each cosmetic

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 results in a more compact, efficient, and manageable dispenser that conserves materials and simplifies construction and operation, enabling independent control of first and second cosmetics with fewer components.

Implementation Method 1

The elevator stem of the first cosmetic elevator has an open inner volume, and the proximal end of the elevator stem of the second cosmetic elevator is received into the open inner volume of the elevator stem of the first cosmetic elevator. The first cosmetic elevator is independently and selectively extendable and retractable relative to the first cosmetic sleeve by a rotation of the first cosmetic sleeve in relation to the adaptor sleeve

Methodology Applied

Scientific EffectThread structure (screw mechanism): Screw

Data Source

PatentUS9332818B2Double-ended cosmetic dispenser

Publication Date: 2016.05.10 HCP PACKAGING USA INC

AI summary

A double-ended cosmetic dispenser with an adaptor sleeve, a first cosmetic sleeve rotatably retained relative to a first end of the adaptor sleeve, and a second cosmetic sleeve rotatably retained relative to a second end of the adaptor sleeve. First and second cosmetic elevators, each with an elevator stem and a cosmetic retaining portion, are extendably and retractably received by the respective cosmetic sleeves and into the adaptor sleeve. The cosmetic elevators are fixed against rotation relative to the cosmetic sleeves. The elevator stem of the first cosmetic elevator has an open inner volume, and the proximal end of the elevator stem of the second cosmetic elevator is received into that open inner volume. Through thread structures, the cosmetic elevators are independently and selectively extendable and retractable relative to the first and second cosmetic sleeves by a rotation of the respective cosmetic sleeve in relation to the adaptor sleeve.