Integrated Catenary Installation Rail Consist for Multi-Crew Deployment

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Solution Overview

Problem

Current installation practices for overhead catenary systems require numerous vehicles and crews, leading to inefficiencies, logistical challenges, and high costs due to the need for daily travel and crew accommodations, as well as the complexity of coordinating multiple vehicles and crews for pole-setting, cable deployment, and catenary arm installation.

Innovation Solution

A unified rail-bound consist comprising a pole-setting segment, cable-deployment segment, and cable-stringing segment, integrated with crew facilities, allows for simultaneous transportation, lifting, and installation of poles, negative return and ground cables, and catenary arms, minimizing the need for separate vehicles and reducing daily travel by integrating facilities for crew comfort and operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate vehicles and crews are used for pole-setting, cable deployment, and catenary arm installation, then each specific installation task can be performed with specialized equipment, but the number of vehicles increases, daily travel requirements increase, and logistical coordination complexity increases

Engineering Contradiction:
Improvespecialized equipment for specific tasksVSAvoidnumber of vehicles and coordination
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines pole-setting, cable deployment, and catenary arm installation functions into a single integrated rail-bound consist. The consist includes a pole-setting segment with lifting apparatus, a cable-deployment segment with cable spools and lifting equipment, and a catenary arm installation segment, all coupled together and share common crew facilities. This merging eliminates the need for multiple separate vehicles and their associated daily travel and coordination requirements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated consist performs multiple installation functions simultaneously through its segmented design. The pole-setting segment installs poles using its lifting apparatus, the cable-deployment segment deploys and positions cables, and the catenary arm installation segment mounts catenary arms, all while sharing common crew facilities and moving along the tracks together as a single unit.

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

2Ease of manufacture

If multiple vehicles travel to and from installation locations daily, then each vehicle can be stored at optimal locations, but the number of daily trips increases, fuel consumption increases, and time loss increases

Engineering Contradiction:
Improvevehicle storage flexibilityVSAvoiddaily travel time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

By consolidating multiple installation functions into a single integrated consist, the patent reduces the number of vehicles that must travel daily. The entire consist moves together to installation locations, performs all installation tasks, and then returns together, eliminating multiple separate daily trips and associated time losses.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated consist enables continuous installation operations by having all segments work simultaneously at each location. The pole-setting, cable deployment, and catenary arm installation can proceed in sequence or parallel without waiting for separate vehicles to arrive and depart, maximizing productive time at each installation location.

Inventive Principle:
Principle #20Continuity of useful action

3Ease of operation

If separate vehicles are used for each installation crew, then each crew has dedicated equipment, but the number of vehicles increases, equipment costs increase, and logistical coordination increases

Engineering Contradiction:
Improvededicated equipment for crewsVSAvoidnumber of vehicles
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent merges multiple crew functions into a single integrated consist with shared facilities. The consist includes common crew quarters, restrooms, and galley that serve all installation crews simultaneously, eliminating the need for separate vehicles for each crew while maintaining dedicated equipment for each installation function through its segmented design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12391289B2Pole-setting and cable deployment and stringing rail car consist for overhead catenary systems
Publication Date: 2025.08.19 HERZOG RAILROAD SERVICES INC
  • US12391289B2 patent drawing
  • US12391289B2 patent drawing
  • US12391289B2 patent drawing

AI summary

A catenary installation consist for construction of an overhead catenary system. The consist includes gondola-style cars with rails mounted along sidewalls thereof to enable wheeled apparatus to move therealong. The cars are configured for fabrication, storage, and installation of catenary arms as well as cable terminations. Wheeled lifting apparatus are disposed on several of the segments and can travel between cars to obtain materials and to reach desired installation locations. Movability longitudinally of the apparatus provides great latitude to crews for completing installation activities without need to move or precisely position the consist as a whole. Fabrication facilities enable construction of catenary arms on the consist as needed to meet design characteristics of particular installations. A crew-segment is also included and provides restrooms, shelter, and other needs for crew members to increase crew member comfort and time on site.