Liquid Metering Assembly with Segmented Valve Control

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Solution Overview

Problem

Existing liquid metering assemblies for beverage containers are often complex, cumbersome, and ineffective in preventing spilling when the container is accidentally overturned, and they lack features to control the volume of liquid dispensed.

Innovation Solution

A liquid metering assembly with a moveable diaphragm and valve member that allows for adjustable liquid volume control through a flexible liquid dispensing conduit, which is aligned with dispensing apertures and includes a rotatable cover to prevent spilling when not in use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a demand valve is incorporated into the cap to prevent liquid release when suction is not applied, then spill prevention is improved, but the device complexity increases and volume control capability is lost

Engineering Contradiction:
Improvespill preventionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention divides the valve system into two separate components: a demand valve mechanism for spill prevention and a flow control valve for volume regulation. This segmentation allows each component to perform its specific function independently, resolving the contradiction by adding functionality rather than increasing overall complexity through integration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cap assembly is designed to perform multiple functions: the demand valve prevents spills during non-use, the flow control valve enables volume adjustment, and the vent aperture allows air intake. This multi-functionality approach addresses the contradiction by consolidating various control capabilities into a single integrated cap structure.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a flow control valve is added to selectively control liquid volume, then volume control capability is improved, but the ease of operation deteriorates due to additional adjustment mechanisms

Engineering Contradiction:
Improvevolume control capabilityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The flow control valve is designed with a movable member that can be adjusted to different positions to control liquid flow volume. This dynamic adjustment mechanism provides versatility in volume control while maintaining ease of operation through simple positional changes rather than complex adjustments.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The demand valve automatically responds to suction application without requiring manual operation, while the flow control valve maintains its set position to provide consistent volume control. This self-service characteristic reduces operational complexity by eliminating the need for continuous manual adjustment.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the cap structure is made complex to provide both demand valve and flow control valve, then functionality is improved, but the ease of manufacture and cleaning deteriorates

Engineering Contradiction:
ImprovefunctionalityVSAvoidease of manufacture
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The cap is divided into distinct functional segments: a demand valve portion, a flow control valve portion, and a vent aperture. This segmentation allows each component to be manufactured independently using standard molding techniques, simplifying the manufacturing process while maintaining comprehensive functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The demand valve incorporates a flexible diaphragm that responds to pressure changes to control liquid flow. This flexible film approach simplifies the valve mechanism compared to rigid mechanical components, making the cap easier to manufacture and clean while maintaining spill prevention functionality.

Inventive Principle:
Principle #30Flexible shells and thin films

4Measurement precision

If the cap is designed with multiple moving parts to enable volume control, then volume control precision is improved, but the reliability of spill prevention deteriorates due to potential failure points

Engineering Contradiction:
Improvevolume control precisionVSAvoidspill prevention reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The valve system is segmented into a demand valve for spill prevention and a flow control valve for volume precision. This segmentation isolates the spill prevention function in the demand valve, which has fewer moving parts and higher reliability, while the flow control valve handles volume adjustment with its adjustable member.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flow control valve controls liquid volume by changing the flow rate parameter through adjustment of the movable member position. This parameter-based control achieves volume precision without requiring complex mechanical mechanisms, thereby maintaining spill prevention reliability through the simpler demand valve design.

Inventive Principle:
Principle #35Parameter changes

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 assembly effectively controls the volume of liquid dispensed and prevents spilling by aligning and misaligning dispensing apertures, ensuring reliable operation and easy cleaning.

Implementation Method 1

when a suction is applied to the dispensing aperture of the container cap

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

a moveable liquid volume control member which sealably, matingly cooperates with the moveable diaphragm

Methodology Applied
Scientific EffectSealing:

Data Source

PatentUS9061813B2Liquid metering assembly
Publication Date: 2015.06.23 ZAK DESIGNS INC
  • US9061813B2 patent drawing
  • US9061813B2 patent drawing
  • US9061813B2 patent drawing

AI summary

A liquid metering assembly is described and which includes a container for enclosing a source of liquid to be dispensed, a container cap defining a dispensing aperture, and a vent aperture, and which is releasably affixed to container; a movable diaphragm releasably cooperating with the container cap, and coupled in fluid flowing relation relative to the dispensing aperture; and a movable liquid volume control member which cooperates with the movable diaphragm, and which further allows a user to withdraw a given volume of liquid from the beverage container.