Pressurized Container Indicator Assembly with Piston-Driven Visual Threshold
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Solution Overview
Problem
Conventional dial indicators for pressurized containers are difficult for users to read, access, and understand, particularly in medical applications where precise fluid and pressure monitoring is critical.
Innovation Solution
An indicating assembly with a piston-driven indicator member that changes visual indicators based on fluid pressure within the container, using a spring bias and shroud design to provide clear, multi-directional visibility of pressure levels through a viewing lens, distinguishing between pressures above and below a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional dial indicator is used for pressure monitoring, then the device can display pressure levels, but the indicator is difficult for users to read, access, and understand
Solution Approach 1:
The patent employs color-coded indicator portions (e.g., green for adequate pressure, red for low pressure) that change based on pressure levels. This visual color-coding system transforms the abstract dial reading into intuitive color signals that are immediately recognizable and understandable by users, directly addressing the readability and comprehension issues with conventional indicators
Solution Approach 2:
The indicator is divided into distinct segments or portions representing different pressure ranges (adequate, low, high pressure). Each segment is visually distinct and positioned to be easily viewed through the shroud opening. This segmentation breaks down the continuous pressure scale into discrete, easily interpretable zones, making it simple for users to assess pressure status at a glance
2Measurement precision
If a dial indicator provides detailed pressure information, then measurement accuracy is improved, but the device complexity increases making it harder to read and understand
Solution Approach 1:
The patent extracts only the essential pressure information needed for operational decisions and presents it through simplified visual indicators. Rather than displaying the full complexity of the pressure scale, the system extracts key threshold levels and represents them through distinct visual portions, eliminating unnecessary complexity while retaining critical measurement information
Solution Approach 2:
Different portions of the indicator have different visual properties (colors, positions, visibility) tailored to their specific pressure range representations. The indicator portions corresponding to critical pressure levels are designed with enhanced visual characteristics to stand out, while less critical areas have simpler visual properties, creating a locally optimized visual hierarchy that simplifies overall interpretation
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
The solution provides a clear and intuitive visual indication of fluid pressure, allowing users to easily differentiate between low and high pressure conditions, enhancing usability and accuracy in medical and other applications.
Implementation Method 1
a piston movable within the valve assembly along a longitudinal axis in response to fluid pressure within the fluid passage
Implementation Method 2
the piston moving under the influence of a spring bias to a low position when the spring force is more than the resulting gas force
Data Source
AI summary
An indicating assembly for a container in which pressurized fluid is stored comprises a valve assembly connected to the pressurized container and having a fluid passage for receiving the pressurized fluid and a piston movable within the valve assembly along a longitudinal axis in response to fluid pressure within the fluid passage. The assembly further comprises an indicating member movable in response to longitudinal movement of the piston between a first condition providing a first indicator portion representing fluid pressure below a threshold pressure and a second condition providing a second indicator portion representing fluid pressure above the threshold pressure.