Pressure Gauge Thread Stop Assembly for Fast Sealed Orientation
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Solution Overview
Problem
Existing pressure gauge connection methods are inefficient for high-volume production, particularly in medical devices, as they lack rapid installation, reliable sealing, and automatic orientation, often requiring tools, adhesives, or specialized equipment, and are prone to thread inconsistencies and creep failures in plastic sockets.
Innovation Solution
A pressure gauge attachment system featuring a thread stop mechanism with deflectable engagement elements that provide a secure, fluid-tight connection through a unique thread form and retention features, allowing single-turn installation and automatic orientation without adhesives or clamping nuts, suitable for high-volume production and use in plastic sockets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tapered pipe threads are used for gauge connection, then securement and sealing are achieved, but installation time increases and orientation precision deteriorates due to unpredictable thread interference
Solution Approach 1:
The patent incorporates a thread stop feature that is pre-formed at a specific axial location on the threaded stem. This preliminary structural feature automatically limits the rotation and axial insertion depth of the gauge during installation, eliminating the need for operators to count turns or estimate installation depth. The thread stop engages with a corresponding feature in the socket to precisely define the final installation position, thereby reducing installation time while maintaining sealing reliability through consistent engagement depth.
2Reliability
If tapered pipe threads are used for gauge connection, then securement is achieved, but manufacturing precision deteriorates due to poor control of thread axial and radial locations
Solution Approach 1:
The patent merges the thread stop feature with the threaded stem structure, creating an integrated component where the stop and threads are formed as a single unit. This integration ensures that the axial and radial locations of both the threads and the stop are precisely controlled relative to each other during manufacturing. The thread stop and threaded portion work together as a unified system to provide both securement and precise orientation, eliminating the need for separate features that would require additional alignment steps.
3Reliability
If multiple components are used for gauge connection, then sealing and retention are achieved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single threaded stem component. The stem integrates the sealing surface, threaded engagement features, and orientation control (via the thread stop) into one unified part. This eliminates the need for separate sealing elements, orientation features, or adjustment mechanisms that would otherwise be required, thereby reducing device complexity while maintaining reliable sealing and securement through the coordinated design of the integrated features.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid, simplified installation with reliable sealing and automatic orientation, reducing manufacturing complexity and the risk of creep failures, while ensuring a secure, fluid-tight connection that is robust enough to withstand pressurized conditions.
Implementation Method 1
a deflectable flange with at least one male engagement feature arranged on its lower edge. The male and female engagement features are collectively configured to allow single-turn installation, alignment, and secure non-removable retention of the pressure measurement assembly to the pressure chamber
Data Source
AI summary
A pressure gauge attachment system includes a thread having a thread stop as well as at least one engagement element that is configured to defect during installation and effectively provide an interlock after installation. The system is suited for rapid and simplified installation, inherently provides automatic orientation of a pressure indicator, enhanced sustainability, flexibility in manufacturing, as well as provides a secure, reliable fluid-tight sealed connection that does not rely upon a pipe thread, additional couplings or clamping nuts for retention.