Smart Nozzle Swivel Joint for Wired 360-Degree Communication

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Solution Overview

Problem

Establishing a quick, reliable, and simple wire connection between a fire truck control center and a nozzle, while maintaining electrical connectivity during the nozzle's movement and high-pressure fluid flow, is challenging due to the need for a fully swiveling coupling that can handle both movement and pressure.

Innovation Solution

A swiveling joint with a slip ring assembly maintains electrical contact during rotation, and hose couplings with locating pins facilitate easy alignment for quick and reliable wired connections, ensuring communication and power transmission between the nozzle and control center.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fully swiveling coupling is used to handle nozzle movement and high-pressure fluid flow, then the nozzle can rotate 360 degrees while maintaining electrical connection, but the device complexity increases due to the slip ring assembly

Engineering Contradiction:
Improvenozzle rotation capabilityVSAvoidswiveling joint structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The slip ring assembly is integrated within the swiveling joint housing, with the rotor nested inside the stator. The electrical contacts are concentrically arranged, allowing the rotor to rotate freely while maintaining continuous electrical connection through the nested slip ring structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The slip ring assembly acts as an intermediary component between the stationary hose connector and the rotating nozzle. It mediates the transmission of electrical signals and power while accommodating the relative rotational motion, enabling 360-degree swiveling without compromising electrical connectivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If wire connection is established between hose and nozzle, then reliable communication is achieved, but the connection time increases due to alignment requirements

Engineering Contradiction:
Improvewire connection reliabilityVSAvoidconnection establishment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The hose connector features an asymmetric design with a single locating pin on one side and a corresponding recess on the other. This asymmetric configuration provides self-alignment during connection, ensuring that the electrical contacts engage correctly without requiring precise manual alignment, thus reducing connection time while maintaining reliability.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The locating pins and recesses are pre-positioned on the hose connectors during manufacturing. This preliminary arrangement of alignment features ensures that when two connectors are brought together, they automatically align in the correct orientation, eliminating the need for time-consuming manual alignment procedures.

Inventive Principle:
Principle #10Preliminary action

3Length of stationary object

If multiple hose connectors are used to reach the fire scene, then the control center can be positioned at a distance, but the number of connection points increases requiring multiple electrical connections

Engineering Contradiction:
Improvehose lengthVSAvoidmultiple electrical connections
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

All hose connectors are designed with identical electrical coupling features, including locating pins, recesses, and electrical contacts. This universal design allows any hose connector to interface with any other hose connector or nozzle, creating a standardized multi-point connection system where the same connection mechanism is repeated along the entire hose assembly, simplifying the overall system complexity.

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

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 real-time data transmission and control of fluid flow parameters from the control center to the nozzle, providing reliable and efficient operation during firefighting scenarios.

Implementation Method 1

The swiveling joint may comprise a slip ring assembly having two or more parts that remain in electrical contact when the swiveling joint swivels.

Methodology Applied
Scientific EffectSlip ring electrical contact: Conduction (electrical)

Data Source

PatentUS12521584B2Wired smart nozzle
Publication Date: 2026.01.13 AKRON BRASS CO
  • US12521584B2 patent drawing
  • US12521584B2 patent drawing
  • US12521584B2 patent drawing

AI summary

One or more systems and/or methods are disclosed for a nozzle with wire connection to a hose, which may allow wired communication between the nozzle and a distant control center. A hose connector with one or more locating pins may be used for easy alignment and quick establishment of electrical connection between the nozzle and the hose. The nozzle may comprise a swiveling joint configured to fully swivel while maintaining electrical connection between the hose connector and an electronic housing. A slip ring assembly may be used in the swiveling joint to maintain the electrical connection.