Composite Hybrid Cable Assembly for Single-Pass Wall Installation
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Solution Overview
Problem
The existing methods for installing structured wiring in buildings require running multiple separate cables through walls, which is inefficient and often violates local regulations regarding aperture sizes in studs, necessitating improved cable installation techniques for efficient data and signal transmission.
Innovation Solution
A composite hybrid cable that allows multiple constituent cables to be run through a structure in a single pass, featuring a stiff yet flexible design to be pushed through apertures and notches, with pre-terminated ends and a ripcord for easy installation, and an outer jacket made from materials like PVC or Halogen Free Polymers for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate cables are run through walls for different signals, then each signal can be transmitted reliably, but the installation process becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple separate cables (coaxial, Ethernet, optical fiber) into a single composite hybrid cable assembly with a common outer jacket and shared aperture passage. This merging allows all signal types to be installed simultaneously through one aperture and single pull-through operation, dramatically improving installation efficiency while maintaining reliable signal transmission for each cable type through their dedicated internal structures
Solution Approach 2:
The composite hybrid cable serves multiple functions simultaneously by integrating different cable types (coaxial for video, Ethernet for data, optical fiber for high-speed communication) within a single unified structure. This multi-functional design allows one cable assembly to handle diverse signal transmission needs while complying with building codes regarding aperture sizes, as the unified structure fits through standard-sized apertures that would be too small for multiple separate cables
2Adaptability or versatility
If multiple separate cables are installed individually, then each cable can be optimized for its specific function, but the installation time and labor increase significantly
Solution Approach 1:
The patent merges multiple individually optimized cables into a single composite assembly where each cable type (coaxial, Ethernet, optical fiber) maintains its specialized structure and signal transmission capabilities. The cables are bundled together with a common outer jacket and installed through a single aperture in one continuous operation, reducing installation time from multiple separate operations to a single streamlined process
Solution Approach 2:
The cables are pre-assembled and configured within the composite hybrid cable structure before installation. The outer jacket is pre-formed to accommodate all cable types, and the internal arrangement is pre-optimized for signal transmission. This preliminary preparation eliminates the need for on-site cable assembly and configuration, significantly reducing installation time while preserving the specialized functionality of each cable type
3Productivity
If a single composite cable is used to run through walls, then installation efficiency improves, but the cable must balance stiffness for pushing with flexibility for navigating turns
Solution Approach 1:
The outer jacket of the composite hybrid cable is constructed from composite materials that provide both stiffness and flexibility. Specifically, the jacket incorporates a polymeric material with embedded fibrous reinforcement (such as glass or aramid fibers), creating a composite structure that is stiff enough to be pushed through walls and apertures yet flexible enough to navigate turns and corners without damage. This composite construction resolves the contradiction between the opposing mechanical requirements
Solution Approach 2:
The cable structure employs local quality variations to achieve different mechanical properties in different regions. The outer jacket has enhanced stiffness in the longitudinal direction to facilitate pushing through walls, while maintaining circumferential flexibility to allow bending and navigation of turns. The internal cable arrangement also provides local support and protection at critical points, enabling the cable to meet both stiffness and flexibility requirements through spatially differentiated structural characteristics
Data Source
AI summary
A composite hybrid cable includes multiple constituent cables with an outer jacket covering the constituent cables configured to run through a wire chase or wall of a structure in a single pass by pushing. The ends of the constituent cables are of different lengths to form a staggered end with the ends having factory-installed connectors. The ends are covered with a material to form a tapered leading edge to facilitate running the composite hybrid cable.