Liquid Filter With Diagonal Folds and Spacers for Uniform Filtration

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing liquid filters face issues with uniform filtration due to liquids failing to reach the inside of mountain fold parts on the outer side of the vertical line where valley fold parts align, leading to incomplete filtration, especially with a large number of folds which cause narrow pitches and pressure-induced blockages.

Innovation Solution

A liquid filter design featuring a filter body with spacers fixed on the inner face near diagonal fold parts, creating pocket areas that allow liquids to flow uniformly across the filter paper, even under compression, by maintaining space between filter paper layers and promoting effective filtration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a large number of mountain fold parts and valley fold parts are formed to increase filtration area, then the filtration area is improved, but the pitch between folds becomes very narrow causing non-uniform filtration

Engineering Contradiction:
Improvefiltration areaVSAvoiduniformity of filtration
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The invention introduces diagonal fold parts that extend in the radial direction from the corner parts of the liquid inflow space, adding a dimensional element that redistributes liquid flow patterns. This radial extension creates pocket parts with triangular planar shapes that facilitate liquid penetration into previously inaccessible mountain fold parts on the outer side, thereby maintaining uniform filtration across the entire filter paper surface even when numerous folds are present.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the filter paper is strongly compressed in the height direction to fit in the filter case, then the device compactness is improved, but the liquid flow into pocket parts is inhibited causing filtration failure

Engineering Contradiction:
Improvefilter compactnessVSAvoidfiltration effectiveness
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The spacers are pre-positioned and fixed on the inner face of the filter paper at specific locations near the diagonal fold parts and inside the pocket parts before compression occurs. This preliminary placement ensures that when the filter is compressed into the filter case, the spacers maintain predetermined spaces between opposing portions of the filter paper, preventing complete collapse of the pocket parts and ensuring liquid can still flow through for effective filtration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The spacers act as intermediary elements between the compressed filter paper layers. By positioning these spacers at strategic locations near the diagonal fold parts and inside the pocket parts, they serve as mechanical mediators that maintain necessary gaps and channels for liquid flow, allowing the filter to achieve both compactness under compression and sustained filtration productivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If mountain fold parts are positioned on the outer side of the vertical line where valley fold parts align, then the fold structure is simplified, but the liquid cannot fully reach the inside of these mountain fold parts causing incomplete filtration

Engineering Contradiction:
Improvefold structure complexityVSAvoidfiltration completeness
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The invention segments the filter structure by introducing diagonal fold parts that extend from the corner parts of the liquid inflow space in the radial direction. This segmentation creates distinct pocket parts with triangular planar shapes that are strategically positioned to guide liquid flow into the mountain fold parts on the outer side. The segmentation allows the simplified fold structure to still achieve complete filtration by creating dedicated flow paths to previously inaccessible areas.

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

Ensures uniform filtration over the entire range of the filter paper, preventing liquid inhibition and allowing for effective filtration even with a large number of folds, thus addressing the issue of incomplete filtration and pressure-induced blockages.

Implementation Method 1

a filter body composed of a filter paper through which a liquid is allowed to pass from an inner face to an outer face... passes through the filter paper to the outside, during which any foreign matter having been contained in the liquid is trapped inside the filter paper

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

each spacer being fixed on the inner face of the filter paper, near the diagonal fold part, and inside of each pocket part... the liquid is routed between the adjacent filter papers that are kept apart from each other by the spacer

Methodology Applied
Scientific EffectPhysical support and spacing:

Data Source

PatentUS12179130B2Liquid filter, and a liquid filtration apparatus using the liquid filter
Publication Date: 2024.12.31 NABERU KK
  • US12179130B2 patent drawing
  • US12179130B2 patent drawing
  • US12179130B2 patent drawing

AI summary

A liquid filter and a liquid filtration apparatus are provided using the liquid filter, which enable uniform filtration over the entire range, without localizing a part where filtration occurs to the upper side above the middle. The liquid filter has a plurality of spacers fixed to a filter body. The filter body has a liquid inflow space, a plurality of diagonal fold parts individually formed outwards from corner parts of the liquid inflow space and having a length in the radial direction around the center of the liquid inflow space, and pocket parts having any one of the diagonal fold parts as one side, and individually having a triangular planar shape, and the spacers are fixed on the inner face of the filter paper, near the diagonal fold parts, and inside of the individual pocket parts.