Plunger Beverage Strainer With Rotating Scraper Against Clogging

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Solution Overview

Problem

Conventional beverage strainers become clogged with particles, preventing effective straining of mixed liquids like coffee, tea, and smoothies, leading to an undesirable user experience due to the accumulation of solid particles against the strainer.

Innovation Solution

A beverage strainer with a plunger assembly that includes a scraper assembly with blades to dislodge and remove particles from the strainer, allowing for efficient straining by rotating the scraper assembly as the plunger moves, thereby preventing clogging and facilitating the flow of liquid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional strainer is used to strain particles from liquid, then particles are confined to the bottom of the container, but the strainer becomes clogged and the user is unable to depress the plunger further

Engineering Contradiction:

Improvestraining effectivenessVSAvoidplunger depression

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The scraper assembly is configured to rotate as the plunger is depressed, transforming the linear motion of plunger depression into rotational motion of the scraper blades. This dynamic conversion allows continuous scraping action during the straining process, preventing particle accumulation and clogging while maintaining ease of operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The scraper assembly acts as an intermediary element between the plunger and the strainer screen. It mediates the interaction by actively removing particles from the screen surface, enabling the plunger to continue depressing without encountering resistance from clogged particles.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the plunger creates a barrier to prevent solid particles from passing through, then particles are confined to the bottom, but the strainer becomes clogged with accumulated particles

Engineering Contradiction:

Improveparticle separationVSAvoidstrainer functionality

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The rotating scraper assembly provides continuous particle removal action throughout the entire straining process. As the plunger depresses and liquid flows through the screen, the scraper continuously clears particles from the screen surface, maintaining uninterrupted straining functionality and preventing clogging.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The scraper assembly is designed to be self-actuating through the rotational motion generated by plunger depression itself. The system uses the user's own depressing action to drive the scraper, eliminating the need for separate manual cleaning operations and enabling continuous self-maintaining straining.

Inventive Principle:

Principle #25Self-service

3Productivity

If excessive pressure is applied to depress the plunger, then straining may continue, but the user experience becomes undesirable and the strainer may be damaged

Engineering Contradiction:

Improvestraining continuityVSAvoiduser experience

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The scraper assembly performs preliminary prevention by removing particles from the strainer screen before they can accumulate to problematic levels. This proactive particle removal prevents the buildup that would otherwise require excessive plunger pressure to overcome, maintaining smooth operation and good user experience.

Inventive Principle:

Principle #9Preliminary anti-action

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 enables continuous straining without the need for excessive pressure, ensuring a seed-free or particle-free beverage is obtained, improving user experience and straining efficiency across various applications.

Implementation Method 1

a scraper assembly with blades to dislodge and remove particles from the strainer

Methodology Applied

Scientific EffectMechanical scraping: Abrasion

Implementation Method 2

The plunger creates a barrier that prevents solid particles of a defined size from passing through the strainer

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS9480279B2System and method for straining a beverage

Publication Date: 2016.11.01 ERJO DESIGNS

AI summary

A system for beverage preparation, and methods for manufacturing and using same. The system includes a container defining a container cavity having a cavity top and bottom end and a plunger assembly configured to translate within the container cavity between the cavity top and bottom end. The plunger assembly can include a shaft having a shaft top and bottom end, a straining body disposed at the shaft bottom end and having a strainer top and bottom end and a strainer bottom surface, and a scraper assembly rotatably coupled about the strainer bottom end and configured to rotatably scrape the strainer bottom surface.