Water Dispenser Filter Bypass for Sabbath-Compliant Hot Water
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Solution Overview
Problem
Existing water dispensers pose challenges for observant Jews during the Sabbath and festivals due to issues with electrical switching, heating, and filtering, which are prohibited, and existing smart control systems do not adequately address these concerns.
Innovation Solution
A water dispenser with Sabbath and festival modes that automatically switches to bypass mechanical filters and UV radiation, maintains hot water temperature without refilling, and uses mechanical taps, ensuring compliance with Sabbath restrictions, while allowing heating and filtering operations before the Sabbath and on certain festivals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical filters and UV radiation sources are used for water filtration and sterilization, then water hygiene and purity are improved, but operation during Sabbath and festivals becomes prohibited
Solution Approach 1:
The system performs water filtration and sterilization operations before the Sabbath begins, storing the purified water in advance. During Sabbath, the pre-filtered water is dispensed without activating any filters or UV sources, thus maintaining hygiene standards while avoiding prohibited operations during the sacred period
Solution Approach 2:
The patent separates the filtration and sterilization functions from the Sabbath operation mode. Mechanical filters and UV radiation sources are extracted from the active Sabbath mode, allowing the dispenser to operate during Sabbath using only stored pre-filtered water, thereby resolving the conflict between hygiene requirements and religious prohibitions
2Adaptability or versatility
If the hot water tank is refilled and heated during Sabbath, then hot water availability is maintained, but electrical switching and heating operations become prohibited
Solution Approach 1:
The hot water tank is filled and heated to the required temperature before Sabbath begins. During Sabbath, the pre-heated water is dispensed without activating the heating element or electrical switching, maintaining hot water availability while complying with Sabbath restrictions on cooking and electrical operations
Solution Approach 2:
The patent introduces an intermediary storage function where hot water is prepared in advance and stored in the tank. This intermediary stored hot water acts as a mediator, allowing continuous hot water dispensing during Sabbath without directly activating heating or electrical switching operations during the prohibited period
3Loss of energy
If smart control systems are used to automate dispenser operations, then energy efficiency is improved, but direct user causation of switching remains problematic for Sabbath observance
Solution Approach 1:
The smart control system's automated switching functions are extracted and disabled during Sabbath mode. The system separates Sabbath operation from non-Sabbath operation, allowing energy-efficient smart control during weekdays while using a simplified, non-automated mode during Sabbath that avoids prohibited electrical switching
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 the use of hot and cold water dispensers on the Sabbath and festivals without violating religious prohibitions, maintaining functionality and hygiene standards through pre-Sabbath operations and mode-specific filtering.
Implementation Method 1
a carbon filter may remove chlorine and volatile compounds
Implementation Method 2
sterilizing is carried out by passing the water past a bank of Ultra-violet Radiation sources, for example UV lamps or UV LED's
Implementation Method 3
a heater for the tank
Data Source
AI summary
A water filter device for filtering water for supply, consists of an outer housing, a general water inlet through the housing, a mechanical filter within the housing, a carbon filter within the housing and a general water outlet through the housing, the filter device providing a flow path from the general water inlet, through the mechanical filter and the carbon filter to the general water outlet. The water filter device further includes a secondary water inlet through the housing between the mechanical filter and the carbon filter, to provide a second flow path from the secondary water inlet through the carbon filter to the general water outlet, the second flow path thus bypassing the mechanical filter.