Viscous Fluid Container Seal Dynamics for Binding Prevention
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Solution Overview
Problem
Conventional container systems for viscous fluids, such as lubricants, lack a suitable means to monitor the fluid level continuously, making it difficult to determine when the container is full or low on fluid, leading to inefficient refilling and potential shortages.
Innovation Solution
A container system with a sensor assembly that includes a guide tube extending through the follower, a movable device with magnets, and a series of magnetically actuated switches, allowing for continuous monitoring of the fluid level and preventing binding issues with horizontal seal movement, enabling precise detection of fluid levels and automatic refilling control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible line connects the mass to the switch to activate the switch when the follower descends, then the container can indicate when it needs refilling, but there is no means for determining the fluid level continuously without removing the lid
Solution Approach 1:
The patent replaces the mechanical flexible line connection with a magnetic field-based sensing system. Magnets embedded in the follower interact with reed switches mounted on the container wall, eliminating the need for physical connections through the lid while enabling continuous level monitoring. This substitution resolves the contradiction by providing both reliability (continuous monitoring) and ease of operation (no lid removal needed).
Solution Approach 2:
The patent introduces magnetic fields as an intermediary between the follower and the switching mechanism. The magnets in the follower create magnetic fields that actuate reed switches on the container wall without requiring direct mechanical contact or penetration of the lid, thereby enabling continuous monitoring while maintaining operational convenience.
2Reliability
If the seal is fixed in the opening to prevent leakage, then sealing is effective, but the vertical member binds as the follower moves up and down
Solution Approach 1:
The patent makes the seal dynamic by allowing it to move horizontally within the opening while maintaining sealing contact. The seal can shift position to accommodate the vertical movement of the follower and pump tube, preventing binding while maintaining sealing effectiveness. This dynamic adjustment resolves the contradiction between reliable sealing and smooth operation.
Solution Approach 2:
The patent changes the positional parameters of the seal, allowing it to move horizontally within the opening rather than being fixed. This parameter change enables the seal to adapt to the vertical motion of the follower, preventing binding while maintaining the sealing function.
3Ease of operation
If the seal has thick cross-section to allow horizontal movement, then binding is prevented, but lubricant leakage occurs past the seal
Solution Approach 1:
The patent segments the sealing function by using multiple thin seals in series rather than a single thick seal. Each thin seal maintains close clearance for effective sealing, while the combination of multiple seals provides sufficient total movement capacity to prevent binding. This segmentation resolves the contradiction between preventing binding and maintaining sealing integrity.
Solution Approach 2:
The patent solves the contradiction by moving the sealing action to another dimension - using multiple seals stacked vertically rather than increasing horizontal thickness. This dimensional approach allows each seal to remain thin for effective sealing while the cumulative arrangement provides the necessary movement capability.
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 continuous monitoring of the fluid level, allowing for efficient scheduling of refills and minimizing the risk of running out of lubricant, while preventing binding and leakage through close clearance sealing fits.
Implementation Method 1
The seal is movable in a generally horizontal plane relative to the follower plate to prevent binding of the first vertical member in the first opening as the follower moves in the container
Implementation Method 2
a series of magnetically actuated switches, allowing for continuous monitoring of the fluid level
Data Source
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AI summary
The invention refers to a container system, comprising: a container (3) for holding a viscous fluid; a follower (5) in the container adapted to move up and down in the container in response to a change in a level of fluid in the container; a first vertical member (69) in the container extending through a first opening (71) in the follower; and a first seal assembly (123) comprising a seal (124) surrounding the first vertical member for sealing the first opening in the follower, said seal being movable in a generally horizontal plane relative to a follower plate (27) to prevent binding of the first vertical member in the first opening as the follower moves in the container.