Compact Fiber Multiport Securing Features for Dense Optical Connections

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Solution Overview

Problem

Conventional multiports for optical connections are bulky and inflexible, occupying excessive space and requiring complex coupling mechanisms, which limits their deployment in smaller environments and raises aesthetic and organizational concerns.

Innovation Solution

The development of multiports with compact form-factors and securing features that allow direct insertion and retention of fiber optic connectors without the need for turning coupling nuts or bayonets, enabling dense port arrangements and quick, reliable connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional multiports use separate receptacles attached through housing walls for hardened connectors, then robust optical connections are achieved, but the housing becomes excessively bulky and inflexible

Engineering Contradiction:

Improverobust optical connectionVSAvoidhousing volume

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent combines the receptacle and housing into a single integrated connection port structure. The connection port is formed directly in the housing with an integrated securing feature, eliminating the need for separate receptacles attached through housing walls. This merging reduces the overall housing volume while maintaining robust optical connection capability through the integrated securing mechanism.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If multiple separate receptacles are mounted on the housing, then optical connections are secured, but sufficient room is required for drop or branch cables

Engineering Contradiction:

Improveoptical connection securityVSAvoiddeployment space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The connection port integrates the securing feature directly into the housing structure, eliminating the need for separate receptacles that would require additional space for cable accommodation. This integration reduces the deployment space required while maintaining connection security through the built-in securing mechanism.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If conventional multiports use threaded or bayonet coupling mechanisms, then secure connections are achieved, but the device complexity and space requirements increase

Engineering Contradiction:

Improveconnection securityVSAvoidcoupling mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the complex threaded or bayonet coupling mechanisms from the connection system and replaces them with a simplified securing feature that integrates directly into the connection port. This extraction eliminates unnecessary mechanical complexity while maintaining connection security through the streamlined securing mechanism.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces traditional mechanical coupling systems (threaded or bayonet) with a simplified securing feature that uses a different mechanical approach - likely a snap-fit or latch mechanism that requires no rotation or threading. This substitution reduces device complexity while achieving the same security goal.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If conventional multiports use separate receptacles and coupling mechanisms, then optical connections are made, but deployment in tight spaces and aesthetic concerns are exacerbated

Engineering Contradiction:

Improvedeployment speedVSAvoidmultiport volume

Core Design Contradiction:

ProductivityVSVolume of moving object

Solution Approach 1:

The integration of the connection port and securing feature into the housing reduces the overall volume of the multiport device. This compact design enables deployment in tight spaces such as crowded underground pits or vaults, while the simplified structure also improves aesthetic appearance by eliminating external receptacles and complex coupling mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4071529B1Multiports and other devices having connection ports with securing features

Publication Date: 2026.03.25 CORNING RES & DEV CORP

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AI summary

A multiport (200) for making optical connections, comprising: a shell (210); a plurality of connection ports (236) comprising an optical connector opening (238) extending from an outer surface (234) of the multiport (200) into a cavity (216) and defining a connection port passageway (233); a plurality of securing feature passageways (245); a plurality of securing features (310), each securing feature being associated with a respective connection port passageway (233), and each securing feature (310) comprises a bore (310B) and a locking feature (310L), wherein the securing feature is disposed within a portion of the respective securing feature passageway (245), and the securing feature (310) is capable of translating within a portion of the securing feature passageway (245) wherein each securing feature (310) translates from a retain position (RP) to an open position (OP) as a suitable fiber optic connector (10) is inserted into the respective connection port (236).