Ferrule Cartridge Assembly for Conduit Fitting Alignment
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Solution Overview
Problem
Existing conduit fitting technologies face challenges in efficiently retaining and assembling conduit gripping devices as a discrete unit before integration into a fitting assembly, leading to issues with robust connections, ease of separation, and maintaining bore diameter and alignment during assembly and operation.
Innovation Solution
The development of a ferrule cartridge retaining structure that holds two or more conduit gripping devices together as a discrete subassembly, allowing for a robust connection without compromising the bore diameter or alignment, and enabling easy separation during pull-up, using flexible extensions, hooks, or adhesives to maintain contact and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If two or more conduit gripping devices are assembled separately into a fitting assembly, then each device can be individually adjusted and installed, but the connection robustness and alignment between devices deteriorate
Solution Approach 1:
The patent combines multiple conduit gripping devices into a single integrated cartridge assembly that is pre-aligned and manufactured as one unit. This merging of separate devices into a unified structure ensures both robust connection strength and precise alignment between the gripping devices, resolving the contradiction between individual adjustability and overall alignment.
2Productivity
If conduit gripping devices are connected as a discrete subassembly, then assembly efficiency improves, but the ease of separation and disassembly deteriorates
Solution Approach 1:
The patent segments the fitting system into two main parts: a cartridge assembly containing the conduit gripping devices and a fitting body. This segmentation allows the cartridge to be easily separated from the fitting body while maintaining the integrated alignment of the gripping devices within the cartridge, thus improving both assembly efficiency and ease of separation.
3Manufacturing precision
If a discrete subassembly structure is used for conduit gripping devices, then the bore diameter and alignment are maintained, but the device complexity increases
Solution Approach 1:
The cartridge assembly serves multiple functions simultaneously: it maintains bore diameter alignment, ensures precise alignment between gripping devices, and provides a standardized interface for assembly and disassembly. This multi-functionality reduces the need for additional separate components, thereby maintaining manufacturing precision without proportionally increasing device complexity.
Data Source
AI summary
Two conduit gripping devices that are to be used together in a conduit fitting assembly are interconnected or held together as a cartridge or subassembly prior to assembly with fitting components to form a fitting assembly. In a more specific embodiment, one or both of the conduit gripping devices comprises a retaining structure by which the devices are mechanically connected together as a subassembly. For example, in one embodiment a front ferrule and a back ferrule for a tube fitting may be snapped together.