Lavatory Basin Overflow Adapter Reducing Drain Profile
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Solution Overview
Problem
Typical lavatory systems face challenges with overflow drains that are often bulky and require significant space, leading to limitations in design flexibility and aesthetics, particularly in terms of overflow drain configuration and profile.
Innovation Solution
An improved lavatory system with a basin featuring a primary drain passage and first and second overflow drain passages, along with an adapter assembly that directs fluid from the first overflow passage to the second, providing a low-profile overflow solution that integrates seamlessly with the basin's design, reducing the overall depth and profile of the overflow system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional overflow drains are used with separate tubing sections or integral passages, then the overflow function is achieved, but the device becomes bulky and requires significant space
Solution Approach 1:
The adapter assembly is mounted within the recess of the basin's rear surface, nesting the overflow drain components inside the basin structure rather than extending outward. This nesting approach reduces the overall volume and space required for the overflow drain while maintaining its functional reliability.
Solution Approach 2:
The overflow drain is reconfigured to utilize the vertical depth dimension of the basin rather than extending horizontally. By directing fluid flow through a vertical passage within the basin depth, the design eliminates the need for external horizontal tubing, significantly reducing the footprint and space requirements.
2Adaptability or versatility
If traditional overflow drain configurations are used, then the overflow function is provided, but design flexibility and aesthetics are limited
Solution Approach 1:
The overflow drain system is divided into separate functional components: the adapter assembly with its body portion, the seal assembly, and the integration with the basin's rear surface recess. This segmentation allows each component to be optimized independently for both aesthetic integration and functional performance, enhancing design flexibility.
Solution Approach 2:
The adapter assembly acts as an intermediary component between the basin structure and the overflow drain function. It mediates the integration of these elements, allowing the overflow drain to be concealed within the basin's aesthetic profile while maintaining proper fluid flow pathways.
3Device complexity
If separate sections of tubing or pipe are used for overflow drains, then the overflow passage is formed, but the device complexity increases
Solution Approach 1:
The adapter assembly merges multiple functions into a single integrated component: it provides the overflow passage, connects to the basin's rear surface recess, incorporates sealing functionality, and directs fluid flow. This consolidation eliminates the need for separate tubing sections and simplifies the overall structure while maintaining ease of manufacture through monolithic construction.
Data Source
AI summary
A lavatory system includes a basin configured to receive at least one faucet, the basin defining a primary drain passage and first and second overflow drain passages; and an overflow adapter configured to be mounted to a rear surface of the basin, the overflow adapter defining an adapter passage such that when the overflow adapter is mounted to the basin, fluid received by way of the first overflow drain passage is directed through the adapter passage between the overflow adapter and the rear surface of the basin and to the second overflow drain passage.