Optical Waveguide Key System for Dispenser Refill Compatibility
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Solution Overview
Problem
Existing key systems for dispensing mechanisms, particularly those using near field frequency response, are complex and often require metal coils, making them difficult to manufacture from plastic and recycle, and are not cost-effective for determining compatibility between refill containers and dispensing systems.
Innovation Solution
An optical key system that uses a waveguide to transmit electromagnetic radiation, where the radiation's parameters are measured against pre-selected criteria to ensure compatibility between components, allowing the dispensing mechanism to operate only when the radiation meets specific requirements, and includes a frangible member that changes transmission characteristics upon removal or replacement of the component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If near field frequency response key systems are used to determine compatibility, then compatibility verification is achieved, but device complexity increases and manufacturing cost rises due to requirement of metal coils
Solution Approach 1:
The patent replaces the electromagnetic near-field detection system with an optical detection system using waveguides. Instead of using metal coils and electromagnetic induction, the invention uses optical waveguides that transmit light between the refill container and dispenser, enabling compatibility verification through optical property matching rather than electromagnetic field interaction.
Solution Approach 2:
The patent creates optical copies or representations of the compatibility information through light transmission. The waveguide system transmits optical signals that represent the compatibility status, allowing the dispenser to verify compatibility by detecting the presence and characteristics of transmitted light rather than directly measuring electromagnetic fields.
2Reliability
If metal coils are used in key systems, then electromagnetic detection is enabled, but ease of manufacture deteriorates and recyclability decreases
Solution Approach 1:
The patent substitutes metal electromagnetic coils with plastic or polymer-based optical waveguides. This replacement enables the entire key system to be manufactured using injection molding and other plastic processing techniques, dramatically improving ease of manufacture while maintaining detection capability through optical rather than electromagnetic means.
Solution Approach 2:
The patent employs composite material structures where optical waveguides are integrated into plastic refill container and dispenser components. The waveguides may be made of transparent or translucent polymers that guide light through total internal reflection, combining structural and optical functions in a single molded component.
3Reliability
If metal coils are used in key systems, then electromagnetic detection is enabled, but recyclability worsens due to difficulty in separating metal components
Solution Approach 1:
The patent replaces metal electromagnetic coils with all-plastic or polymer-based optical waveguide systems. This elimination of metal components allows the entire refill container and associated parts to be easily recycled through standard plastic recycling processes, improving environmental sustainability while maintaining the essential detection function through optical means.
4Device complexity
If optical waveguide systems are used, then manufacturing cost decreases and recyclability improves, but measurement precision must be maintained for compatibility verification
Solution Approach 1:
The patent utilizes changes in optical parameters such as light transmission intensity, wavelength, or polarization state to encode compatibility information. The waveguide system is designed so that compatible components allow specific optical parameters to be transmitted, while incompatible components block or alter these parameters, enabling precise compatibility verification through optical measurement.
Solution Approach 2:
The patent introduces optical filters, detectors, or other intermediary optical components that enhance the precision of radiation parameter measurement. These intermediaries convert subtle optical property changes into easily detectable signals, maintaining measurement precision while keeping the overall system simple and cost-effective.
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
This solution provides a cost-effective and recyclable optical key system that ensures compatibility between refill containers and dispensing systems, allowing for efficient operation while promoting sustainability by using plastic components and reducing complexity.
Implementation Method 1
an electromagnetic radiation waveguide having an inlet and an outlet and providing a path for transmission of electromagnetic radiation from the inlet to the outlet
Implementation Method 2
an electromagnetic radiation sensor carried on the activation unit sensing electromagnetic radiation from the waveguide by the outlet
Implementation Method 3
the waveguide is at least partially carried by the reservoir and removable therewith... coupling or uncoupling of the removable component changes the transmission characteristics of the waveguide
Data Source
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AI summary
A method of controlling operation of a mechanism, preferably a dispenser (10), having a removable component (12) comprising the steps of measuring electromagnetic radiation passing through a waveguide (53) carrying at least in part on the removable component and permitting operation of the mechanism only when the measured electromagnetic radiation corresponds with one or more pre-selected parameters. Preferably, the method involves directing emitted electromagnetic radiation with pre-selected input parameters selected from a plurality of input parameters.