Interrupted Thread Filter Connector for Rapid Bayonet Engagement
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Solution Overview
Problem
Existing air and fluid filter systems require cumbersome installation processes, often involving multiple rotations of screw-thread connections, which can be inefficient and prone to misalignment, especially when trying to maintain compatibility with legacy systems.
Innovation Solution
A connector system featuring a cylindrical bore and protrusion with interrupted threading patterns, allowing for bayonet-style engagement by sliding and rotating, which reduces installation complexity while maintaining compatibility with screw-thread based systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If screw-thread connections are used for filter element installation, then compatibility with legacy systems is maintained, but installation process becomes cumbersome and time-consuming
Solution Approach 1:
The threading pattern is segmented into multiple interrupted threaded segments around the circumference, allowing the connector to engage through a sliding motion rather than requiring full rotational screwing. This segmentation enables faster installation while maintaining thread-based compatibility
Solution Approach 2:
The connector design allows dynamic engagement through a combination of sliding and rotating motions. The interrupted threading pattern permits the connector to slide into place initially, then rotate to engage the threaded segments, creating a more efficient installation process compared to traditional static screw-thread connections
2Reliability
If multiple full rotations are required for screw-on couplers, then secure connection is achieved, but installation complexity increases
Solution Approach 1:
The threading is divided into multiple interrupted segments arranged circumferentially, allowing engagement through sliding motion followed by limited rotation. This reduces the number of rotations needed while maintaining secure connection through distributed thread engagement points
Solution Approach 2:
The sliding motion performs a preliminary engagement action that positions the connector and filter element in correct alignment before final threaded engagement. This preliminary alignment reduces the risk of misalignment and simplifies the subsequent rotation step
3Adaptability or versatility
If traditional screw-thread patterns are used, then backward compatibility is maintained, but misalignment risk increases
Solution Approach 1:
The interrupted threading pattern with multiple circumferential segments provides multiple engagement points that are more tolerant of minor misalignments. The sliding motion further compensates for alignment variations by allowing self-centering during the engagement process
Solution Approach 2:
The connector design serves multiple functions: it maintains backward compatibility with threaded connections while enabling faster sliding engagement and providing improved alignment tolerance. The interrupted threading pattern universally accommodates both precise and imprecise initial positioning
Data Source
AI summary
The present disclosure is directed to a new quick-connect, bayonet-type coupling arrangement for use with connecting a filter cartridge or element to a fluid-consuming machine. Advantageously, the features of the coupling arrangement can be provided while simultaneously maintaining backward compatibility with screw-thread based systems by modifying the screw thread on the end cap so as to include judicially arranged non-interfering segments. Accordingly, the disclosed fluid filter elements can not only be installed on systems according to the present disclosure but also on prior-art systems presenting a thread-based connector.