Twist-Lock Filter Body for Compact Gas Sampling

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Solution Overview

Problem

Existing gas sampling systems face challenges in accommodating replaceable filters due to space constraints, especially in compact setups, and require additional external space or necessitate instrument servicing for filter replacement.

Innovation Solution

A replaceable filter with an integral accessory receptacle that can be inserted into a filter receptacle within the gas sampling apparatus, allowing for user-accessible filter replacement without additional external space, utilizing a twist-lock mechanism for secure insertion and connection to a gas supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an external filter is placed near the instrument panel for easy replacement, then filter accessibility is improved, but additional space beyond the sample line connector is required

Engineering Contradiction:
Improvefilter replacement accessibilityVSAvoidspace required on instrument panel
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The filter body is merged with the accessory receptacle into a single integrated component. The accessory receptacle is formed integral with the filter body, allowing the filter to be housed within the filter receptacle without requiring additional external space on the instrument panel.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The filter body containing the filter element is nested within the filter receptacle. When the filter body is fully inserted, only the accessory receptacle protrudes from the filter receptacle, creating a compact nested arrangement that eliminates the need for additional external space.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Area of stationary object

If the filter is located internally of the measurement apparatus, then space on the instrument panel is saved, but the instrument must be serviced for filter replacement

Engineering Contradiction:
Improvespace on instrument panelVSAvoidfilter replacement accessibility
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The filter body is extracted as a removable component from the filter receptacle. The filter body can be easily removed by disengaging the twist-lock mechanism, allowing users to replace the filter without servicing the entire measurement apparatus.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The filter body transitions from a static internal component to a dynamic removable component. The twist-lock mechanism enables the filter body to be easily inserted and removed, providing user accessibility while maintaining a compact internal arrangement.

Inventive Principle:
Principle #15Dynamics

3Ease of repair

If a replaceable filter design is implemented, then filter maintenance is simplified, but additional space or instrument servicing is required

Engineering Contradiction:
Improvefilter maintenanceVSAvoidspace required
Core Design Contradiction:
Ease of repairVSArea of stationary object

Solution Approach 1:

The filter system is segmented into modular components: the filter element housed in the filter body, which is separate from but insertable into the filter receptacle. This segmentation allows the filter to be replaced independently without affecting other system components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The accessory receptacle is merged with the filter body into a single integrated component. This combination allows the accessory connector to be accessed while the filter is replaced, eliminating the need for additional external space while maintaining ease of maintenance.

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

Enables convenient filter replacement without requiring additional space or instrument servicing, ensuring continuous operation and preventing contamination of measurement devices.

Implementation Method 1

a filter configured to filter the gas supply to provide a filtered gas sample to the filter receptacle through a second end of the filter body

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP2798328B1User replaceable filter for gas sampling system
Publication Date: 2021.04.07 KONINKLIJKE PHILIPS NV
  • EP2798328B1 patent drawingFigure 1
  • EP2798328B1 patent drawingFigure 2
  • EP2798328B1 patent drawingFigure 3

AI summary

A replaceable filter integrated into the front panel accessory interconnect system of a gas sampling system includes a filter body mounted within a housing of the system. The filter body is insertable into a filter receptacle, and removable from the filter receptacle by a twist- lock mechanism. The filter body includes an integral accessory receptacle. An accessory connector is insertably connectable with the accessory receptacle.