Optical Fiber Terminal Clamp Assembly for Sealed Conduit Replacement

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Solution Overview

Problem

Existing optical fiber cable clamps are not optimized for easy removal and replacement, can be damaged during installation, and are costly, lacking robustness and efficient sealing.

Innovation Solution

A clamp assembly with detachable partial elongated arc bodies forming a closed loop structure, secured by fastening means, and equipped with a locking nut for secure engagement with optical fiber terminals, providing environmental sealing and damage prevention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional cable clamps with corrugated tubes are used, then cable protection is provided, but the clamps cannot be removed or replaced and can be damaged during installation

Engineering Contradiction:
Improverobustness of tube connectionVSAvoidease of removal and replacement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The clamp assembly is divided into multiple detachable clamp members (first clamp member, second clamp member, third clamp member, fourth clamp member) that can be separated and reassembled. Each clamp member has corresponding engagement features that allow them to be connected together to form a complete clamp structure, enabling removal and replacement while maintaining connection reliability during installation

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If conventional cable clamps are used, then cable securing is achieved, but they are not optimized to contain maximum number of patch cords and are costly

Engineering Contradiction:
Improvecapacity to contain patch cordsVSAvoidcomplexity of clamp structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clamp assembly with multiple detachable clamp members can accommodate multiple corrugated tubes and patch cords simultaneously. The modular design allows the same clamp structure to be used for different numbers and configurations of cables, maximizing utility while maintaining a relatively simple standardized component design

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

3Object-affected harmful factors

If conventional cable clamps are used, then cable protection is provided, but sealing is not robust and environmental protection is insufficient

Engineering Contradiction:
Improveprotection against environmental impactsVSAvoidsealing robustness
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

A sealing ring is incorporated in the clamp assembly to provide environmental sealing between the clamp members and the corrugated tubes. The sealing ring creates a barrier against moisture, dust, and other environmental contaminants, ensuring robust sealing and protection of the connected cables and connectors

Inventive Principle:
Principle #30Flexible shells and thin films

4Ease of operation

If conventional cable clamps are used, then cable securing is achieved, but installation and removal processes can damage the corrugated conduit

Engineering Contradiction:
Improveease of installation and removalVSAvoiddamage to corrugated conduit
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The detachable clamp members are designed with engagement features that allow for dynamic assembly and disassembly without applying excessive or concentrated forces to the corrugated conduit. The distributed contact points and gradual engagement mechanism enable installation and removal while minimizing stress and potential damage to the conduit

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4647822A1Optical fiber terminal with a clamp assembly
Publication Date: 2025.11.12 STERLITE TECHNOLOGIES LTD
  • EP4647822A1 patent drawingFigure 1
  • EP4647822A1 patent drawingFigure 2A
  • EP4647822A1 patent drawingFigure 2B

AI summary

The present disclosure relates to an optical fiber terminal (100) having one or more circular ports (106) to receive a corrugated conduit (108) and a clamp assembly (110) to be engaged with a port of the circular ports (106). In particular, the clamp assembly (110) has a plurality of partial elongated arc bodies (112) and a fastening means (116) adapted to detachably secure the plurality of partial elongated arc bodies (112) to form a clamp body (114) such that the clamp body (114) secures the at least one corrugated conduit (108). Further, the clamp body (114) forms a closed loop structure in the cross section.