Protected Branch Connector Assembly for Seal Orientation Verification
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Solution Overview
Problem
Existing fire protection systems face challenges in ensuring the integrity of internal seals within connectors, as the presence or proper orientation of annular seal members can be difficult to verify, leading to potential leaks due to damage or debris interference.
Innovation Solution
A protective device with a plug body that is inserted into the outlet opening of a branch connector, providing visual indicators to confirm the annular seal member's seated orientation and preventing debris entry, ensuring a fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the internal annular seal is omitted from the connector or improperly located within the connector, then the device complexity is reduced, but the reliability of the fluid tight seal deteriorates
Solution Approach 1:
The patent applies preliminary action by including visual indicators (such as colored bands, windows, or markings) on the connector that allow inspectors to verify the presence and proper location of the internal annular seal before final assembly. This preliminary verification ensures the seal is correctly positioned without adding complexity to the sealing mechanism itself.
Solution Approach 2:
The patent uses visual indicators as an intermediary element between the internal seal and the inspector. These indicators (such as transparent windows, colored rings, or positioning marks) mediate the verification process by providing visible confirmation of the seal's presence and orientation without requiring disassembly or complex inspection tools.
2Ease of manufacture
If the internal annular seal is damaged or covered with dirt and debris, then the ease of manufacture is improved, but the reliability of the fluid tight seal deteriorates
Solution Approach 1:
The patent applies preliminary action by providing visual indicators that allow inspection of the seal's condition before assembly. The indicators enable manufacturers to verify that the seal is clean, undamaged, and properly positioned prior to final assembly, preventing defective seals from being installed without requiring complex inspection equipment.
Solution Approach 2:
The patent utilizes color changes or visual variations (such as colored bands, tinted windows, or contrasting markings) on the connector or seal to indicate proper installation and condition. These visual cues allow quick identification of seals that are properly positioned and free from damage or contamination, maintaining manufacturing simplicity while ensuring reliability.
3Measurement precision
If visual indicators are added to verify seal orientation, then the measurement precision of seal installation is improved, but the device complexity increases
Solution Approach 1:
The patent uses color changes, colored bands, or visual markings on the connector body or seal component to indicate proper orientation. For example, a colored ring may be visible through a transparent window only when the seal is correctly positioned, or asymmetric markings may indicate the correct rotational orientation of the seal within the connector.
Solution Approach 2:
The patent applies asymmetry by incorporating non-uniform visual indicators (such as asymmetric patterns, offset markings, or directional features) that provide precise orientation information. These asymmetric features allow inspectors to quickly determine the correct rotational position of the seal without adding complex mechanical verification mechanisms.
Data Source
AI summary
Device and methods of protecting a branch connector of a fluid supply pipe header for a fire protection system. A protected branch connector assembly includes a protective device that protects the branch connector fitting from dirt and debris and indicates that an internal seal member is in a desired seated orientation. The protective device includes a plug body inserted within the outlet opening of the branch connector fitting and an indicator in an indicative relationship with the branch connector to indicate that the internal seal member is in the desired seated orientation.