Remote Fire Hydrant Actuation for Blocked-Access Operation

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Solution Overview

Problem

Current fire hydrant designs require manual operation by a specialized wrench, which is slow and impractical in situations where access is prevented by crowds, posing a challenge for crowd control and biohazard mitigation in urban and suburban areas.

Innovation Solution

A remote control system for fire hydrants, comprising a battery, gearbox with an electric motor, and a receiver/transmitter, which engages the operating nut to activate or deactivate hydrants wirelessly, allowing for centralized control and security features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual operation with specialized wrench is used, then hydrant can be activated, but the process is slow and access is prevented by crowds

Engineering Contradiction:
Improvehydrant activation speedVSAvoidaccess to hydrant
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent replaces the manual mechanical operation system (specialized wrench and manual turning) with an automated electromechanical system. The remote system includes an electric motor that rotates the operating nut through a gearbox, eliminating the need for manual intervention and specialized tools. This substitution enables rapid activation of multiple hydrants simultaneously from a remote location, directly resolving the contradiction between activation speed and ease of operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If physical access to hydrants is required, then hydrant can be operated, but safety is compromised in crowd control and biohazard situations

Engineering Contradiction:
Improvesafety in emergency situationsVSAvoidphysical access requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a remote control system as an intermediary between the operator and the hydrant. The system includes a receiver/transmitter that communicates wirelessly with the hydrant's motorized actuator, allowing operation without direct physical contact. This intermediary mechanism enables safe remote operation in hazardous situations such as crowd control and biohazard mitigation, while maintaining the ability to reliably activate hydrants.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple hydrants are activated manually one at a time, then each hydrant can be controlled, but the process is time-consuming

Engineering Contradiction:
Improvemultiple hydrant activation rateVSAvoidtime for sequential operation
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent merges the control functions of multiple hydrants into a single integrated remote control system. The system can simultaneously or sequentially activate multiple hydrants through wireless communication and motorized actuators, consolidating what would otherwise require multiple separate manual operations. This merging of control functions dramatically reduces the time required to activate multiple hydrants while maintaining individual control capability.

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 rapid activation or deactivation of multiple hydrants, facilitating crowd dispersal and biohazard mitigation without physical access, enhancing safety and efficiency in emergency situations.

Implementation Method 1

a gearbox including an electric motor and an operating nut socket engaging the operating nut

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a battery

Methodology Applied
Scientific EffectElectrical energy storage: Battery (electricity)

Data Source

PatentUS12571188B2System for remote control operation of hydrant
Publication Date: 2026.03.10 SEMPER FIRE LLC
  • US12571188B2 patent drawing
  • US12571188B2 patent drawing
  • US12571188B2 patent drawing

AI summary

In one aspect, a system for remote control operation of a hydrant is provided, comprising: a hydrant, comprising: a barrel; a bonnet containing one or more outlet; a flange including a plurality of flange bolts; and an operating nut oriented at the top of the hydrant; and a remote system, comprising: a battery; a gearbox including an electric motor and an operating nut socket engaging the operating nut; a receiver/transmitter electrically connected to the battery and the electric motor; and at least one flange bolt engagement member engaging at least one flange bolt.