Differential Pressure Indicator Universal Logic Configuration
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Solution Overview
Problem
Existing differential pressure indicators for filtration systems require different components and designs for open or closed circuit logic, making them costly and inefficient to manufacture.
Innovation Solution
A differential pressure indicator that can be configured for either open or closed circuit logic using similar components by varying the material and insulating arrangements, allowing the same components to function as either open or closed logic by rearranging parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different components and designs are used for open or closed circuit logic indicators, then the indicators can be manufactured with specific logic functionality, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent applies universality by designing a single differential pressure indicator device that can function with both open circuit logic and closed circuit logic configurations. The same basic components (housing, piston, electrical contacts, insulating material) are used, but their arrangement and material selection can be varied to achieve different logic functionalities, eliminating the need for completely separate design sets for each logic type.
Solution Approach 2:
The patent employs parameter changes by modifying the material properties and arrangement parameters of existing components rather than changing the fundamental device structure. By changing whether components are conductive or insulating, and their spatial arrangement, the same physical device can be configured for different logic types, reducing complexity while maintaining versatility.
2Adaptability or versatility
If different components and designs are used for open or closed circuit logic indicators, then the indicators can be manufactured with specific logic functionality, but the manufacturing cost increases
Solution Approach 1:
The patent reduces manufacturing cost through universality by enabling a single production line to manufacture indicators for both open and closed logic applications. The same housing, piston, and electrical contact components can be produced in bulk, and only the insulating material arrangement needs to be adjusted during assembly to create different logic configurations, significantly reducing per-unit costs compared to maintaining separate component inventories.
Solution Approach 2:
The patent merges the manufacturing processes for open and closed logic indicators into a single unified process. By combining the production of common components (housing, piston, electrical contacts) and using the same assembly line with only minor reconfiguration for insulating material placement, the manufacturer achieves economies of scale and reduces overall manufacturing costs while maintaining the ability to produce both logic types.
3Productivity
If the same components are used for both open and closed circuit logic, then manufacturing efficiency improves, but the device must accommodate multiple configurations
Solution Approach 1:
The patent applies segmentation by dividing the electrical circuit path into distinct segments with identifiable insulating or conductive components. The insulating material is positioned at specific locations to create discrete electrical pathways, allowing the same physical components to be arranged in different configurations for open or closed logic without requiring complete redesign of the entire device structure.
Solution Approach 2:
The patent uses insulating material as an intermediary element that mediates between the electrical contacts to determine logic configuration. By placing or removing this intermediary insulating material at specific locations, the device can switch between open and closed logic modes using the same underlying components, enabling configuration flexibility without increasing overall device complexity.
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 cost-effective and efficient manufacturing of both open and closed circuit indicators, reducing tooling costs and increasing production volume by using substantially similar components.
Implementation Method 1
The piston is movable in response to a pressure differential between the pressure chambers
Implementation Method 2
The insulative material is arranged between the third contact and one of the first and second electrical contacts to provide for one of open and close circuit logic
Data Source
AI summary
A differential pressure indicator and method of configuring a differential pressure indicator is provided. The differential pressure indicator is configurable to provide open circuit or closed circuit logic and includes a housing, a pressure responsive element, a post, first, second and third electrical contacts and an electrical insulator from an insulative material. The electrical insulator separates the third electrical contact from either the first contact or the second contact to provide a desired type of logic. The differential pressure indicator may use substantially similar components to provide either open circuit or closed circuit logic or the components may be rearranged to provide either open circuit or closed circuit logic.