Concentric Hose Coupling to Prevent Cover Wear and Leaks
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Solution Overview
Problem
Current retractable and extendable hoses with fiber woven covers are prone to wear, fray, and cause leaks or breakages due to the dichotomy between the outer cover and inner hose, making handling and performance difficult.
Innovation Solution
A hose system comprising an inner hose nested within an outer hose, coupled by a coupling device with threads or other attachment methods, and optionally clamps, allowing for bendable and retractable operation without a separate outer cover, and adhering to secondary containment volume regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fiber woven outer cover is used on retractable hoses, then the hose can be extended and retracted, but the outer cover easily wears or frays when exposed to elements and rough surfaces
Solution Approach 1:
The patent removes the traditional outer woven cover from the hose design, extracting the problematic element that caused wear and fraying. The inner hose itself becomes the functional component without being encased in a protective but detrimental outer layer, thereby eliminating the wear issue while preserving extendability and retractability through the hose's inherent flexibility.
2Adaptability or versatility
If a fiber woven outer cover is used on retractable hoses, then the hose can be extended and retracted, but the woven cover causes leaks, breakages and snags with the inner hose
Solution Approach 1:
The patent eliminates the separate outer cover that created the dichotomy between cover and hose, removing the source of leaks and breakages. By having the inner hose function without an outer encasement, the harmful interactions between the cover and hose are completely removed.
3Adaptability or versatility
If a fiber woven outer cover is used on retractable hoses, then the hose can be extended and retracted, but the outer cover is difficult to handle in different environments
Solution Approach 1:
The patent removes the outer woven cover that created handling difficulties in various environments. The inner hose, now exposed and unrestricted by an outer layer, can be more easily manipulated and transported, improving ease of operation while maintaining the extendable and retractable functionality.
Data Source
AI summary
The disclosure outlines a hose system and method for coupling hoses. The system includes an inner hose surrounded by an outer hose, coupled by a coupling device. In some embodiments, the coupling device and outer hose form a containment assembly for the inner hose. In some embodiments, hoses are flexible and can connect to fluid sources. In some embodiments, clamps can further secure the hoses to the coupling device. The disclosure includes methods of coupling hoses, including by using a pulling device to thread the inner hose through the outer hose. In some embodiments, the coupling method involves attaching the hoses to different parts of a coupling device, potentially utilizing a seat.