Partition Transit Liner for Hygienic Cable and Pipe Sealing

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Solution Overview

Problem

Existing transits for passing cables and pipes through partitions often fail to provide adequate screening or sealing, particularly in environments with high hygiene requirements or low levels of particulates.

Innovation Solution

A transit system comprising a first frame, a second frame, and fastening screws that clamp the frames on opposite sides of the partition, along with a partition opening liner that forms a radially lined passage, enhancing sealing and screening properties without exposing screw holes on the partition or the outer surface of the first frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional transits are used with screw holes in the partition and frame, then the structure is simple and easy to manufacture, but the sealing and screening properties are inadequate for high hygiene environments

Engineering Contradiction:

Improvesealing propertyVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The partition opening liner is nested within the transit frame structure, with the liner forming an inner sealed passage while the frame provides outer structural support. This nested configuration allows the liner to be protected within the frame structure, providing enhanced sealing without requiring the frame itself to be fully sealed, thus balancing reliability improvement with manageable complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The partition opening liner acts as an intermediary element between the partition opening and the transit frame. It provides the sealing function that bridges the gap between the simple framed structure and the requirement for high sealing performance, allowing the frame to remain structurally simple while achieving reliable sealing through the intermediary liner component.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If screw holes are exposed on the outer surface of the first frame, then the manufacturing and assembly process is simple, but the hygiene standard and particulate control are compromised

Engineering Contradiction:

Improveparticulate levelVSAvoidassembly simplicity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The screw holes and fastening features are extracted from the exposed outer surface of the first frame and relocated to the partition opening liner or the inner surfaces. This extraction removes the harmful exposed screw holes from the hygiene-critical external surface while maintaining the structural integrity and assembly functionality through alternative fastening arrangements on non-exposed surfaces.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Different surfaces of the transit structure are given different qualities: the outer surface of the first frame is designed to be smooth and hole-free for hygiene compliance, while the inner surfaces and liner incorporate screw holes and fastening features where they are not exposed. This local differentiation allows the structure to meet hygiene standards on exposed surfaces while maintaining manufacturing simplicity through standard fastening methods on non-exposed surfaces.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If the partition opening is not lined, then the structure is simpler and easier to manufacture, but dust and debris from the partition can enter the passage

Engineering Contradiction:

Improvedust and debris contaminationVSAvoidliner structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The partition opening liner is nested within the transit frame assembly, creating a protected inner passage that prevents dust and debris entry while being supported by the outer frame structure. This nested configuration provides contamination protection without requiring the entire frame to be complex, as the liner is contained within the simpler outer frame boundaries.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The partition opening liner is implemented as a thin-walled structure that can be made from flexible or semi-rigid materials. This thin-film approach provides effective dust and debris barrier functionality while minimizing the added complexity and material usage compared to thick-walled or heavily structured alternatives. The thin-film liner can be easily integrated into the frame without requiring complex support structures.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS12326212B2Transit for passing cables and/or pipes through a partition opening and use of such a transit

Publication Date: 2025.06.10 AB ROXTEC

AI summary

A transit for passing at least one cable (11) and/or at least one pipe through an opening (22) in a partition (12), wherein the transit comprises a first frame (19), a second frame (20), wherein the second frame (20) is arranged with through apertures (24) and the first frame (19) is arranged with holes (25) for receiving threaded fastening screws (23), so that the first and second frames (19, 20) can be clamped on opposite sides of the partition (12) by means of the fastening screws. The transit (10) further comprises a partition opening liner (21) for engaging the first frame (19) and the second frame (20) and form a radially lined passage extending in an axial direction between the first frame (19) and the second frame (20). Disclosed is also the use of such a transit (10).