Adjustable Hydrant Strap Assembly for Tamper-Resistant Pipe Mounting

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Solution Overview

Problem

Monitoring devices in pipe systems face risks of theft, accidental damage, or sabotage due to inadequate securing mechanisms, as they can be easily removable without tools, varying pipe diameters and shapes complicate secure mounting, and existing solutions do not provide sufficient tamper-proofing.

Innovation Solution

A monitoring device with a housing and strap assembly featuring tamper-resistant fasteners and adjustable straps that securely attach to the pipe system, ensuring the device cannot be disassembled or removed without damage, using a combination of straps and fasteners that form a secure, adjustable fit around the pipe element, and incorporating a tamper-proof housing fastener to prevent unauthorized removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If common fastening methods are used to secure the monitoring device to the pipe system, then the device can be easily installed and removed, but the device becomes vulnerable to theft, accidental damage, or sabotage

Engineering Contradiction:
Improveease of installation and removalVSAvoidsecurity against theft and sabotage
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The strap assembly incorporates an adjustable mechanism that allows the same fastening system to adapt to different pipe diameters and shapes while maintaining secure attachment. The dynamic adjustment capability enables the device to be both easily installed and securely fixed, resolving the contradiction between ease of operation and reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The fastening system changes its securing parameters (strap tension, attachment point positioning) based on the pipe characteristics and security requirements. By adjusting these parameters, the system achieves both easy installation and tamper-resistant security, eliminating the trade-off between operational ease and reliability.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the monitoring device is securely fastened to prevent theft and damage, then security is improved, but the device becomes difficult to remove or adjust

Engineering Contradiction:
Improvesecurity against theft and sabotageVSAvoidease of removal and adjustment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The fastening system incorporates a dynamic release mechanism that transitions from a securely locked state during normal operation to an easily released state when authorization is provided. This allows the device to maintain high security during operation while enabling easy removal and adjustment when needed, resolving the contradiction between reliability and ease of operation.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If a fixed-size mounting device is used, then the device structure is simple, but it cannot accommodate varying pipe diameters and shapes

Engineering Contradiction:
Improvesimplicity of mounting structureVSAvoidcompatibility with different pipe sizes and shapes
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The strap assembly is designed with adjustable length and positioning capabilities, allowing it to dynamically adapt to different pipe diameters and shapes. This dynamic adjustability enables a relatively simple mounting structure to achieve high versatility across various pipe configurations, resolving the contradiction between device complexity and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting device incorporates universal attachment features that can accommodate multiple pipe types, diameters, and shapes through a single standardized interface. This multi-functionality allows the simple mounting structure to work across diverse applications, eliminating the trade-off between simplicity and versatility.

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

4Ease of operation

If the monitoring device allows easy removal without tools, then maintenance and replacement are simple, but the device becomes vulnerable to unauthorized removal

Engineering Contradiction:
Improveease of maintenance and replacementVSAvoidvulnerability to unauthorized removal
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The fastening system incorporates a dynamic security feature that requires specific authorization or tools for removal, transitioning from an easily accessible state during authorized maintenance to a secured state during normal operation. This resolves the contradiction by allowing easy maintenance under authorized conditions while preventing unauthorized removal.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

An intermediary security mechanism (such as a tamper-resistant fastener or authorization-required release) is introduced between the mounting device and the pipe system. This intermediary enables authorized easy removal for maintenance while blocking unauthorized removal attempts, resolving the contradiction between ease of operation and protection from harmful factors.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3885587B1Adjustable hydrant strap
Publication Date: 2022.10.12 MUELLER INT LLC
  • EP3885587B1 patent drawingFigure 1
  • EP3885587B1 patent drawingFigure 2
  • EP3885587B1 patent drawingFigure 3

AI summary

A monitoring device for a pipe system includes a housing, a housing fastener, and a strap assembly. The housing is configured to mount on an exterior surface of a pipe element of the pipe system. The strap assembly is coupled to the housing with the housing fastener, and the housing fastener is received within the housing to secure the strap assembly to the housing. The strap assembly includes a first strap and a second strap, each of the first strap and the second strap including a mounting end, an adjusting end, and an intermediate portion. The first strap includes an insert tab proximate to the first adjusting end, and the second strap includes a plurality of adjustment slots sized to lockably receive a portion of the insert tab. The insert tab is lockably coupled to the second strap when the monitoring device is tightened.